From 9b0f8d041ad70b879881e95c6b44ca60a7aa366f Mon Sep 17 00:00:00 2001
From: hyperpolymath <6759885+hyperpolymath@users.noreply.github.com>
Date: Wed, 24 Jun 2026 16:26:51 +0100
Subject: [PATCH] chore(licence): normalise to MPL-2.0 (code) + CC-BY-SA-4.0
 (docs)

- LICENSES/ = {MPL-2.0.txt, CC-BY-SA-4.0.txt}; root LICENSE = verbatim MPL-2.0 (GitHub display)
- SPDX: code -> MPL-2.0, docs (.md/.adoc) -> CC-BY-SA-4.0; metadata/badge fixes; vendored untouched

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 .clusterfuzzlite/Dockerfile                   |    8 +-
 .githooks/pre-commit                          |    2 +-
 .gitlab/issue_templates/bug.md                |    2 +-
 .gitlab/issue_templates/feature.md            |    2 +-
 .gitlab/merge_request_templates/default.md    |    2 +-
 .../agent_instructions/README.adoc            |    2 +-
 .machine_readable/svc/k9/README.adoc          |    2 +-
 .trivyignore                                  |    2 +-
 AFFIRMATION.adoc                              |    2 +-
 AUTHORS.md                                    |    2 +-
 CHANGELOG.md                                  |    2 +-
 CODE_OF_CONDUCT.md                            |    2 +-
 CONTRIBUTING.adoc                             |    4 +-
 CONTRIBUTING.md                               |    2 +-
 EXPLAINME.adoc                                |    2 +-
 LICENSE                                       | 1036 ++++++-----------
 LICENSES/CC-BY-SA-4.0.txt                     |  170 +++
 LICENSES/MIT.txt                              |   21 -
 LICENSES/PMPL-1.0-or-later.txt                |  162 ---
 LICENSES/PMPL-1.0.txt                         |  153 ---
 LICENSES/Palimpsest-0.6.txt                   |   93 --
 MAINTAINERS.adoc                              |    2 +-
 QUICKSTART-USER.adoc                          |    2 +-
 README.adoc                                   |    2 +-
 README.md                                     |    2 +-
 RSR_COMPLIANCE.adoc                           |    2 +-
 SECURITY.md                                   |    2 +-
 TEST_CI_ECHIDNA.md                            |    2 +-
 container/README.adoc                         |    2 +-
 crates/echidna-core-spark/CREUSOT-SETUP.md    |    2 +-
 crates/echidna-mcp/README.md                  |    2 +-
 crates/echidna-wire/schemas/VERSIONING.md     |    2 +-
 data/synonyms/README.adoc                     |    2 +-
 docs/ARCHITECTURE.md                          |    2 +-
 docs/ASPECT_QUICK_START.md                    |    2 +-
 docs/ASPECT_TAGGING.md                        |    2 +-
 docs/CORPUS-ADAPTERS.md                       |    2 +-
 docs/CORPUS.md                                |    2 +-
 docs/ENV-VARS.md                              |    2 +-
 docs/HP-BACKEND-ONBOARDING.md                 |    4 +-
 docs/LEARNING-ARCHITECTURE.adoc               |    2 +-
 docs/PROVER_COUNT.md                          |    2 +-
 docs/ROADMAP.md                               |    2 +-
 docs/SSG_ROADMAP.adoc                         |    2 +-
 docs/SUPPORTED_PROVERS.md                     |    2 +-
 docs/architecture/CHAPEL-SATURATION-HOOKS.md  |    2 +-
 docs/architecture/CROSS-REPO-PROOF-DAG.md     |    2 +-
 docs/architecture/JULIA-SATURATION-HOOKS.md   |    2 +-
 .../architecture/TYPE-DISCIPLINE-EMBEDDING.md |    2 +-
 docs/architecture/VERISIM-ER-SCHEMA.md        |    2 +-
 docs/bench/2026-05-30-chapel-mrr-baseline.md  |    2 +-
 .../2026-04-28-corpus-and-design-search.md    |    2 +-
 .../2026-05-19-ci-baseline-triage.md          |    2 +-
 .../2026-05-30-chapel-l23-cancel-token.md     |    2 +-
 .../2026-05-30-chapel-pic-rebuild.md          |    2 +-
 .../2026-05-30-chapel-rehabilitation.md       |    2 +-
 .../2026-05-31-chapel-prover-spawn-hooks.md   |    2 +-
 .../2026-06-01-saturation-campaign.md         |    2 +-
 docs/deployment/DEPLOYMENT_GUIDE.md           |    2 +-
 ...IDNA-VERISIM-TRIANGULATION-2026-04-17.adoc |    2 +-
 docs/design/SPARK_ADOPTION_PLAN.md            |    2 +-
 docs/governance/JUST_AND_MUST_FRAMEWORK.md    |    6 +-
 docs/handover/B7-AUDIT-CORRECTION.md          |    2 +-
 docs/handover/HANDOVER-INDEX.md               |    2 +-
 docs/handover/L3-GATE-PATH.adoc               |    2 +-
 docs/handover/PHASE-3-PROMPT.md               |    2 +-
 .../handover/PROVER-CORPUS-SATURATION-LANE.md |    2 +-
 docs/handover/README.md                       |    2 +-
 docs/handover/S4-LOOP-CLOSURE-RUNBOOK.md      |    2 +-
 docs/handover/SESSION-HANDOFF-2026-06-15.md   |    2 +-
 docs/handover/SUGGEST-CLI-PROMPT.md           |    2 +-
 docs/handover/THEOREM-METADATA-MIGRATION.md   |    2 +-
 docs/handover/llm-warmup-dev.md               |    2 +-
 docs/handover/llm-warmup-user.md              |    2 +-
 docs/maintenance/MAINTENANCE-CHECKLIST.adoc   |    2 +-
 .../SOFTWARE-DEVELOPMENT-APPROACH.adoc        |    2 +-
 .../audit/2026-03-31-echidna-audit.adoc       |    2 +-
 docs/tech-debt-2026-05-26.md                  |    2 +-
 docs/training-runs/2026-06-02.md              |    2 +-
 docs/wiki/Architecture.md                     |    2 +-
 docs/wiki/FAQ.md                              |    2 +-
 docs/wiki/Getting-Started.md                  |    2 +-
 docs/wiki/Guides.md                           |    2 +-
 docs/wiki/Home.md                             |    2 +-
 docs/wiki/Troubleshooting.md                  |    2 +-
 echidna-playground/.github/CODEOWNERS         |    2 +-
 echidna-playground/CONTRIBUTING.adoc          |    2 +-
 echidna-playground/MAINTAINERS.adoc           |    2 +-
 echidna-playground/README.adoc                |    2 +-
 echidna-playground/RSR_OUTLINE.adoc           |    2 +-
 examples/simple_proof.v                       |    2 +-
 hooks/README.md                               |    2 +-
 meta-checker/README.adoc                      |    2 +-
 metrics/README.md                             |    2 +-
 proofs/acl2/associativity.lisp                |    2 +-
 proofs/acl2/binary_trees.lisp                 |    2 +-
 proofs/acl2/factorial.lisp                    |    2 +-
 proofs/acl2/list_append.lisp                  |    2 +-
 proofs/acl2/sorting.lisp                      |    2 +-
 proofs/agda/Basic.agda                        |    2 +-
 proofs/hol4/arithmetic.sml                    |    2 +-
 proofs/hol4/binary_tree.sml                   |    2 +-
 proofs/hol4/list_append.sml                   |    2 +-
 proofs/hol4/set_theory.sml                    |    2 +-
 proofs/hol4/sorting.sml                       |    2 +-
 proofs/lean/Basic.lean                        |    2 +-
 proofs/lean/List.lean                         |    2 +-
 proofs/lean/Propositional.lean                |    2 +-
 proofs/lean/README.md                         |    2 +-
 proofs/lean/THEOREMS.md                       |    2 +-
 proofs/pvs/arithmetic.pvs                     |    2 +-
 proofs/pvs/binary_search.pvs                  |    2 +-
 proofs/pvs/list_theory.pvs                    |    2 +-
 proofs/pvs/set_theory.pvs                     |    2 +-
 proofs/pvs/sorting.pvs                        |    2 +-
 reports/audits/audit-ffi-boundary.md          |    2 +-
 .../audits/audit-pa021-axioms-2026-05-26.md   |    2 +-
 rules/security_learning.lgt                   |    2 +-
 schemas/VERSIONING.md                         |    2 +-
 scripts/build-production.sh                   |    2 +-
 scripts/demo-proof.sh                         |    2 +-
 scripts/expand_training_data.sh               |    2 +-
 scripts/test-integration.sh                   |    2 +-
 spark/README.adoc                             |    2 +-
 src/julia/README.md                           |    4 +-
 src/julia/retrain_from_verisim.jl             |    2 +-
 src/julia/test_server.jl                      |    2 +-
 src/ui/tea/echidna_gui.affine                 |    2 +-
 src/ui/tea/echidna_tea.js                     |    2 +-
 src/zig/ffi/echidna_ffi.h                     |    2 +-
 training_data/proof_states_v2.jsonl           |   10 +-
 131 files changed, 683 insertions(+), 1226 deletions(-)
 mode change 120000 => 100644 .clusterfuzzlite/Dockerfile
 create mode 100644 LICENSES/CC-BY-SA-4.0.txt
 delete mode 100644 LICENSES/MIT.txt
 delete mode 100644 LICENSES/PMPL-1.0-or-later.txt
 delete mode 100644 LICENSES/PMPL-1.0.txt
 delete mode 100644 LICENSES/Palimpsest-0.6.txt

diff --git a/.clusterfuzzlite/Dockerfile b/.clusterfuzzlite/Dockerfile
deleted file mode 120000
index 5240dc01..00000000
--- a/.clusterfuzzlite/Dockerfile
+++ /dev/null
@@ -1 +0,0 @@
-Containerfile
\ No newline at end of file
diff --git a/.clusterfuzzlite/Dockerfile b/.clusterfuzzlite/Dockerfile
new file mode 100644
index 00000000..43f88636
--- /dev/null
+++ b/.clusterfuzzlite/Dockerfile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: MPL-2.0
+FROM gcr.io/oss-fuzz-base/base-builder-rust@sha256:73c1d5648db54100639339d411a5d192cbc8bf413ee91e843a07cf6f0e319dc7
+
+COPY . $SRC/echidna
+WORKDIR $SRC/echidna
+
+COPY .clusterfuzzlite/build.sh $SRC/
diff --git a/.githooks/pre-commit b/.githooks/pre-commit
index dce58237..92c8d936 100755
--- a/.githooks/pre-commit
+++ b/.githooks/pre-commit
@@ -3,7 +3,7 @@
 # ECHIDNA Pre-commit Hook
 # Enforces npm ban and runs checks
 #
-# SPDX-License-Identifier: MIT OR AGPL-3.0-or-later
+# SPDX-License-Identifier: MPL-2.0 OR AGPL-3.0-or-later
 
 set -euo pipefail
 
diff --git a/.gitlab/issue_templates/bug.md b/.gitlab/issue_templates/bug.md
index 2c841086..435015a0 100644
--- a/.gitlab/issue_templates/bug.md
+++ b/.gitlab/issue_templates/bug.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2024-2025 ECHIDNA Project Contributors
 -->
 
diff --git a/.gitlab/issue_templates/feature.md b/.gitlab/issue_templates/feature.md
index bd275ddd..43070c55 100644
--- a/.gitlab/issue_templates/feature.md
+++ b/.gitlab/issue_templates/feature.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2024-2025 ECHIDNA Project Contributors
 -->
 
diff --git a/.gitlab/merge_request_templates/default.md b/.gitlab/merge_request_templates/default.md
index 0557d276..fcfc2e2a 100644
--- a/.gitlab/merge_request_templates/default.md
+++ b/.gitlab/merge_request_templates/default.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2024-2025 ECHIDNA Project Contributors
 -->
 
diff --git a/.machine_readable/agent_instructions/README.adoc b/.machine_readable/agent_instructions/README.adoc
index 9bc2e24b..1cc7487e 100644
--- a/.machine_readable/agent_instructions/README.adoc
+++ b/.machine_readable/agent_instructions/README.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 = Agent Instructions
 :toc: preamble
diff --git a/.machine_readable/svc/k9/README.adoc b/.machine_readable/svc/k9/README.adoc
index 9c3099fd..16107f14 100644
--- a/.machine_readable/svc/k9/README.adoc
+++ b/.machine_readable/svc/k9/README.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 = K9 Contractiles
 :toc: left
 :icons: font
diff --git a/.trivyignore b/.trivyignore
index fd38d441..e9a06537 100644
--- a/.trivyignore
+++ b/.trivyignore
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: MIT AND Palimpsest-0.6
+# SPDX-License-Identifier: MPL-2.0 AND Palimpsest-0.6
 # SPDX-FileCopyrightText: 2024-2025 ECHIDNA Project Contributors
 #
 # Trivy ignore file for ECHIDNA
diff --git a/AFFIRMATION.adoc b/AFFIRMATION.adoc
index cf077390..67f6ffb3 100644
--- a/AFFIRMATION.adoc
+++ b/AFFIRMATION.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 
 = ECHIDNA — Affirmation of Honest State
diff --git a/AUTHORS.md b/AUTHORS.md
index fdb6befc..6388b8ab 100644
--- a/AUTHORS.md
+++ b/AUTHORS.md
@@ -1,6 +1,6 @@
 <!--
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2024-2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e76027a..efc80f77 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,5 @@
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 # Changelog
 
 All notable changes to ECHIDNA will be documented in this file.
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
index 7293ffc5..b1194f09 100644
--- a/CODE_OF_CONDUCT.md
+++ b/CODE_OF_CONDUCT.md
@@ -1,6 +1,6 @@
 <!--
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2024-2025 ECHIDNA Project Contributors
 -->
 
diff --git a/CONTRIBUTING.adoc b/CONTRIBUTING.adoc
index e2dcea9e..06ed4b7e 100644
--- a/CONTRIBUTING.adoc
+++ b/CONTRIBUTING.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // SPDX-FileCopyrightText: 2025-2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = ECHIDNA — Contributing
 :toc: macro
@@ -156,7 +156,7 @@ header:
 
 [source]
 ----
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // SPDX-FileCopyrightText: <year> <name> <email>
 ----
 
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 644fb6a8..b9aa0c91 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,5 +1,5 @@
 <!--
-  SPDX-License-Identifier: MPL-2.0
+  SPDX-License-Identifier: CC-BY-SA-4.0
   SPDX-FileCopyrightText: 2025-2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 
   CONTRIBUTING.adoc is canonical (RSR convention). This Markdown file
diff --git a/EXPLAINME.adoc b/EXPLAINME.adoc
index d543001d..e548a37e 100644
--- a/EXPLAINME.adoc
+++ b/EXPLAINME.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // SPDX-FileCopyrightText: 2025-2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = ECHIDNA — Show Me The Receipts
 :toc:
diff --git a/LICENSE b/LICENSE
index 78c37b74..14e2f777 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,663 +1,373 @@
-SPDX-License-Identifier: AGPL-3.0-or-later
-
-                    GNU AFFERO GENERAL PUBLIC LICENSE
-                       Version 3, 19 November 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-                            Preamble
-
-  The GNU Affero General Public License is a free, copyleft license for
-software and other kinds of works, specifically designed to ensure
-cooperation with the community in the case of network server software.
-
-  The licenses for most software and other practical works are designed
-to take away your freedom to share and change the works.  By contrast,
-our General Public Licenses are intended to guarantee your freedom to
-share and change all versions of a program--to make sure it remains free
-software for all its users.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-them if you wish), that you receive source code or can get it if you
-want it, that you can change the software or use pieces of it in new
-free programs, and that you know you can do these things.
-
-  Developers that use our General Public Licenses protect your rights
-with two steps: (1) assert copyright on the software, and (2) offer
-you this License which gives you legal permission to copy, distribute
-and/or modify the software.
-
-  A secondary benefit of defending all users' freedom is that
-improvements made in alternate versions of the program, if they
-receive widespread use, become available for other developers to
-incorporate.  Many developers of free software are heartened and
-encouraged by the resulting cooperation.  However, in the case of
-software used on network servers, this result may fail to come about.
-The GNU General Public License permits making a modified version and
-letting the public access it on a server without ever releasing its
-source code to the public.
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-  The GNU Affero General Public License is designed specifically to
-ensure that, in such cases, the modified source code becomes available
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-  An older license, called the Affero General Public License and
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-a different license, not a version of the Affero GPL, but Affero has
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-non-permissive terms added in accord with section 7 apply to the code;
-keep intact all notices of the absence of any warranty; and give all
-recipients a copy of this License along with the Program.
-
-  You may charge any price or no price for each copy that you convey,
-and you may offer support or warranty protection for a fee.
-
-  5. Conveying Modified Source Versions.
-
-  You may convey a work based on the Program, or the modifications to
-produce it from the Program, in the form of source code under the
-terms of section 4, provided that you also meet all of these conditions:
-
-    a) The work must carry prominent notices stating that you modified
-    it, and giving a relevant date.
-
-    b) The work must carry prominent notices stating that it is
-    released under this License and any conditions added under section
-    7.  This requirement modifies the requirement in section 4 to
-    "keep intact all notices".
-
-    c) You must license the entire work, as a whole, under this
-    License to anyone who comes into possession of a copy.  This
-    License will therefore apply, along with any applicable section 7
-    additional terms, to the whole of the work, and all its parts,
-    regardless of how they are packaged.  This License gives no
-    permission to license the work in any other way, but it does not
-    invalidate such permission if you have separately received it.
-
-    d) If the work has interactive user interfaces, each must display
-    Appropriate Legal Notices; however, if the Program has interactive
-    interfaces that do not display Appropriate Legal Notices, your
-    work need not make them do so.
-
-  A compilation of a covered work with other separate and independent
-works, which are not by their nature extensions of the covered work,
-and which are not combined with it such as to form a larger program,
-in or on a volume of a storage or distribution medium, is called an
-"aggregate" if the compilation and its resulting copyright are not
-used to limit the access or legal rights of the compilation's users
-beyond what the individual works permit.  Inclusion of a covered work
-in an aggregate does not cause this License to apply to the other
-parts of the aggregate.
-
-  6. Conveying Non-Source Forms.
-
-  You may convey a covered work in object code form under the terms
-of sections 4 and 5, provided that you also convey the
-machine-readable Corresponding Source under the terms of this License,
-in one of these ways:
-
-    a) Convey the object code in, or embodied in, a physical product
-    (including a physical distribution medium), accompanied by the
-    Corresponding Source fixed on a durable physical medium
-    customarily used for software interchange.
-
-    b) Convey the object code in, or embodied in, a physical product
-    (including a physical distribution medium), accompanied by a
-    written offer, valid for at least three years and valid for as
-    long as you offer spare parts or customer support for that product
-    model, to give anyone who possesses the object code either (1) a
-    copy of the Corresponding Source for all the software in the
-    product that is covered by this License, on a durable physical
-    medium customarily used for software interchange, for a price no
-    more than your reasonable cost of physically performing this
-    conveying of source, or (2) access to copy the
-    Corresponding Source from a network server at no charge.
-
-    c) Convey individual copies of the object code with a copy of the
-    written offer to provide the Corresponding Source.  This
-    alternative is allowed only occasionally and noncommercially, and
-    only if you received the object code with such an offer, in accord
-    with subsection 6b.
-
-    d) Convey the object code by offering access from a designated
-    place (gratis or for a charge), and offer equivalent access to the
-    Corresponding Source in the same way through the same place at no
-    further charge.  You need not require recipients to copy the
-    Corresponding Source along with the object code.  If the place to
-    copy the object code is a network server, the Corresponding Source
-    may be on a different server (operated by you or a third party)
-    that supports equivalent copying facilities, provided you maintain
-    clear directions next to the object code saying where to find the
-    Corresponding Source.  Regardless of what server hosts the
-    Corresponding Source, you remain obligated to ensure that it is
-    available for as long as needed to satisfy these requirements.
-
-    e) Convey the object code using peer-to-peer transmission, provided
-    you inform other peers where the object code and Corresponding
-    Source of the work are being offered to the general public at no
-    charge under subsection 6d.
-
-  A separable portion of the object code, whose source code is excluded
-from the Corresponding Source as a System Library, need not be
-included in conveying the object code work.
-
-  A "User Product" is either (1) a "consumer product", which means any
-tangible personal property which is normally used for personal, family,
-or household purposes, or (2) anything designed or sold for incorporation
-into a dwelling.  In determining whether a product is a consumer product,
-doubtful cases shall be resolved in favor of coverage.  For a particular
-product received by a particular user, "normally used" refers to a
-typical or common use of that class of product, regardless of the status
-of the particular user or of the way in which the particular user
-actually uses, or expects or is expected to use, the product.  A product
-is a consumer product regardless of whether the product has substantial
-commercial, industrial or non-consumer uses, unless such uses represent
-the only significant mode of use of the product.
-
-  "Installation Information" for a User Product means any methods,
-procedures, authorization keys, or other information required to install
-and execute modified versions of a covered work in that User Product from
-a modified version of its Corresponding Source.  The information must
-suffice to ensure that the continued functioning of the modified object
-code is in no case prevented or interfered with solely because
-modification has been made.
-
-  If you convey an object code work under this section in, or with, or
-specifically for use in, a User Product, and the conveying occurs as
-part of a transaction in which the right of possession and use of the
-User Product is transferred to the recipient in perpetuity or for a
-fixed term (regardless of how the transaction is characterized), the
-Corresponding Source conveyed under this section must be accompanied
-by the Installation Information.  But this requirement does not apply
-if neither you nor any third party retains the ability to install
-modified object code on the User Product (for example, the work has
-been installed in ROM).
-
-  The requirement to provide Installation Information does not include a
-requirement to continue to provide support service, warranty, or updates
-for a work that has been modified or installed by the recipient, or for
-the User Product in which it has been modified or installed.  Access to a
-network may be denied when the modification itself materially and
-adversely affects the operation of the network or violates the rules and
-protocols for communication across the network.
-
-  Corresponding Source conveyed, and Installation Information provided,
-in accord with this section must be in a format that is publicly
-documented (and with an implementation available to the public in
-source code form), and must require no special password or key for
-unpacking, reading or copying.
-
-  7. Additional Terms.
-
-  "Additional permissions" are terms that supplement the terms of this
-License by making exceptions from one or more of its conditions.
-Additional permissions that are applicable to the entire Program shall
-be treated as though they were included in this License, to the extent
-that they are valid under applicable law.  If additional permissions
-apply only to part of the Program, that part may be used separately
-under those permissions, but the entire Program remains governed by
-this License without regard to the additional permissions.
-
-  When you convey a copy of a covered work, you may at your option
-remove any additional permissions from that copy, or from any part of
-it.  (Additional permissions may be written to require their own
-removal in certain cases when you modify the work.)  You may place
-additional permissions on material, added by you to a covered work,
-for which you have or can give appropriate copyright permission.
-
-  Notwithstanding any other provision of this License, for material you
-add to a covered work, you may (if authorized by the copyright holders of
-that material) supplement the terms of this License with terms:
-
-    a) Disclaiming warranty or limiting liability differently from the
-    terms of sections 15 and 16 of this License; or
-
-    b) Requiring preservation of specified reasonable legal notices or
-    author attributions in that material or in the Appropriate Legal
-    Notices displayed by works containing it; or
-
-    c) Prohibiting misrepresentation of the origin of that material, or
-    requiring that modified versions of such material be marked in
-    reasonable ways as different from the original version; or
-
-    d) Limiting the use for publicity purposes of names of licensors or
-    authors of the material; or
-
-    e) Declining to grant rights under trademark law for use of some
-    trade names, trademarks, or service marks; or
-
-    f) Requiring indemnification of licensors and authors of that
-    material by anyone who conveys the material (or modified versions of
-    it) with contractual assumptions of liability to the recipient, for
-    any liability that these contractual assumptions directly impose on
-    those licensors and authors.
-
-  All other non-permissive additional terms are considered "further
-restrictions" within the meaning of section 10.  If the Program as you
-received it, or any part of it, contains a notice stating that it is
-governed by this License along with a term that is a further
-restriction, you may remove that term.  If a license document contains
-a further restriction but permits relicensing or conveying under this
-License, you may add to a covered work material governed by the terms
-of that license document, provided that the further restriction does
-not survive such relicensing or conveying.
-
-  If you add terms to a covered work in accord with this section, you
-must place, in the relevant source files, a statement of the
-additional terms that apply to those files, or a notice indicating
-where to find the applicable terms.
-
-  Additional terms, permissive or non-permissive, may be stated in the
-form of a separately written license, or stated as exceptions;
-the above requirements apply either way.
-
-  8. Termination.
-
-  You may not propagate or modify a covered work except as expressly
-provided under this License.  Any attempt otherwise to propagate or
-modify it is void, and will automatically terminate your rights under
-this License (including any patent licenses granted under the third
-paragraph of section 11).
-
-  However, if you cease all violation of this License, then your
-license from a particular copyright holder is reinstated (a)
-provisionally, unless and until the copyright holder explicitly and
-finally terminates your license, and (b) permanently, if the copyright
-holder fails to notify you of the violation by some reasonable means
-prior to 60 days after the cessation.
-
-  Moreover, your license from a particular copyright holder is
-reinstated permanently if the copyright holder notifies you of the
-violation by some reasonable means, this is the first time you have
-received notice of violation of this License (for any work) from that
-copyright holder, and you cure the violation prior to 30 days after
-your receipt of the notice.
-
-  Termination of your rights under this section does not terminate the
-licenses of parties who have received copies or rights from you under
-this License.  If your rights have been terminated and not permanently
-reinstated, you do not qualify to receive new licenses for the same
-material under section 10.
-
-  9. Acceptance Not Required for Having Copies.
-
-  You are not required to accept this License in order to receive or
-run a copy of the Program.  Ancillary propagation of a covered work
-occurring solely as a consequence of using peer-to-peer transmission
-to receive a copy likewise does not require acceptance.  However,
-nothing other than this License grants you permission to propagate or
-modify any covered work.  These actions infringe copyright if you do
-not accept this License.  Therefore, by modifying or propagating a
-covered work, you indicate your acceptance of this License to do so.
-
-  10. Automatic Licensing of Downstream Recipients.
-
-  Each time you convey a covered work, the recipient automatically
-receives a license from the original licensors, to run, modify and
-propagate that work, subject to this License.  You are not responsible
-for enforcing compliance by third parties with this License.
-
-  An "entity transaction" is a transaction transferring control of an
-organization, or substantially all assets of one, or subdividing an
-organization, or merging organizations.  If propagation of a covered
-work results from an entity transaction, each party to that
-transaction who receives a copy of the work also receives whatever
-licenses to the work the party's predecessor in interest had or could
-give under the previous paragraph, plus a right to possession of the
-Corresponding Source of the work from the predecessor in interest, if
-the predecessor has it or can get it with reasonable efforts.
-
-  You may not impose any further restrictions on the exercise of the
-rights granted or affirmed under this License.  For example, you may
-not impose a license fee, royalty, or other charge for exercise of
-rights granted under this License, and you may not initiate litigation
-(including a cross-claim or counterclaim in a lawsuit) alleging that
-any patent claim is infringed by making, using, selling, offering for
-sale, or importing the Program or any portion of it.
-
-  11. Patents.
-
-  A "contributor" is a copyright holder who authorizes use under this
-License of the Program or a work on which the Program is based.  The
-work thus licensed is called the contributor's "contributor version".
-
-  A contributor's "essential patent claims" are all patent claims
-owned or controlled by the contributor, whether already acquired or
-hereafter acquired, that would be infringed by some manner, permitted
-by this License, of making, using, or selling its contributor version,
-but do not include claims that would be infringed only as a
-consequence of further modification of the contributor version.  For
-purposes of this definition, "control" includes the right to grant
-patent sublicenses in a manner consistent with the requirements of
-this License.
-
-  Each contributor grants you a non-exclusive, worldwide, royalty-free
-patent license under the contributor's essential patent claims, to
-make, use, sell, offer for sale, import and otherwise run, modify and
-propagate the contents of its contributor version.
-
-  In the following three paragraphs, a "patent license" is any express
-agreement or commitment, however denominated, not to enforce a patent
-(such as an express permission to practice a patent or covenant not to
-sue for patent infringement).  To "grant" such a patent license to a
-party means to make such an agreement or commitment not to enforce a
-patent against the party.
-
-  If you convey a covered work, knowingly relying on a patent license,
-and the Corresponding Source of the work is not available for anyone
-to copy, free of charge and under the terms of this License, through a
-publicly available network server or other readily accessible means,
-then you must either (1) cause the Corresponding Source to be so
-available, or (2) arrange to deprive yourself of the benefit of the
-patent license for this particular work, or (3) arrange, in a manner
-consistent with the requirements of this License, to extend the patent
-license to downstream recipients.  "Knowingly relying" means you have
-actual knowledge that, but for the patent license, your conveying the
-covered work in a country, or your recipient's use of the covered work
-in a country, would infringe one or more identifiable patents in that
-country that you have reason to believe are valid.
-
-  If, pursuant to or in connection with a single transaction or
-arrangement, you convey, or propagate by procuring conveyance of, a
-covered work, and grant a patent license to some of the parties
-receiving the covered work authorizing them to use, propagate, modify
-or convey a specific copy of the covered work, then the patent license
-you grant is automatically extended to all recipients of the covered
-work and works based on it.
-
-  A patent license is "discriminatory" if it does not include within
-the scope of its coverage, prohibits the exercise of, or is
-conditioned on the non-exercise of one or more of the rights that are
-specifically granted under this License.  You may not convey a covered
-work if you are a party to an arrangement with a third party that is
-in the business of distributing software, under which you make payment
-to the third party based on the extent of your activity of conveying
-the work, and under which the third party grants, to any of the
-parties who would receive the covered work from you, a discriminatory
-patent license (a) in connection with copies of the covered work
-conveyed by you (or copies made from those copies), or (b) primarily
-for and in connection with specific products or compilations that
-contain the covered work, unless you entered into that arrangement,
-or that patent license was granted, prior to 28 March 2007.
-
-  Nothing in this License shall be construed as excluding or limiting
-any implied license or other defenses to infringement that may
-otherwise be available to you under applicable patent law.
-
-  12. No Surrender of Others' Freedom.
-
-  If conditions are imposed on you (whether by court order, agreement or
-otherwise) that contradict the conditions of this License, they do not
-excuse you from the conditions of this License.  If you cannot convey a
-covered work so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you may
-not convey it at all.  For example, if you agree to terms that obligate you
-to collect a royalty for further conveying from those to whom you convey
-the Program, the only way you could satisfy both those terms and this
-License would be to refrain entirely from conveying the Program.
-
-  13. Remote Network Interaction; Use with the GNU General Public License.
-
-  Notwithstanding any other provision of this License, if you modify the
-Program, your modified version must prominently offer all users
-interacting with it remotely through a computer network (if your version
-supports such interaction) an opportunity to receive the Corresponding
-Source of your version by providing access to the Corresponding Source
-from a network server at no charge, through some standard or customary
-means of facilitating copying of software.  This Corresponding Source
-shall include the Corresponding Source for any work covered by version 3
-of the GNU General Public License that is incorporated pursuant to the
-following paragraph.
-
-  Notwithstanding any other provision of this License, you have
-permission to link or combine any covered work with a work licensed
-under version 3 of the GNU General Public License into a single
-combined work, and to convey the resulting work.  The terms of this
-License will continue to apply to the part which is the covered work,
-but the work with which it is combined will remain governed by version
-3 of the GNU General Public License.
-
-  14. Revised Versions of this License.
-
-  The Free Software Foundation may publish revised and/or new versions of
-the GNU Affero General Public License from time to time.  Such new versions
-will be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-  Each version is given a distinguishing version number.  If the
-Program specifies that a certain numbered version of the GNU Affero General
-Public License "or any later version" applies to it, you have the
-option of following the terms and conditions either of that numbered
-version or of any later version published by the Free Software
-Foundation.  If the Program does not specify a version number of the
-GNU Affero General Public License, you may choose any version ever published
-by the Free Software Foundation.
-
-  If the Program specifies that a proxy can decide which future
-versions of the GNU Affero General Public License can be used, that proxy's
-public statement of acceptance of a version permanently authorizes you
-to choose that version for the Program.
-
-  Later license versions may give you additional or different
-permissions.  However, no additional obligations are imposed on any
-author or copyright holder as a result of your choosing to follow a
-later version.
-
-  15. Disclaimer of Warranty.
-
-  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
-APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
-HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
-OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
-THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
-IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
-ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-
-  16. Limitation of Liability.
-
-  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
-THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
-GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
-USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
-DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
-PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
-  17. Interpretation of Sections 15 and 16.
-
-  If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If your software can interact with users remotely through a computer
-network, you should also make sure that it provides a way for users to
-get its source.  For example, if your program is a web application, its
-interface could display a "Source" link that leads users to an archive
-of the code.  There are many ways you could offer source, and different
-solutions will be better for different programs; see section 13 for the
-specific requirements.
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU AGPL, see
-<https://www.gnu.org/licenses/>.
+Mozilla Public License Version 2.0
+==================================
+
+1. Definitions
+--------------
+
+1.1. "Contributor"
+    means each individual or legal entity that creates, contributes to
+    the creation of, or owns Covered Software.
+
+1.2. "Contributor Version"
+    means the combination of the Contributions of others (if any) used
+    by a Contributor and that particular Contributor's Contribution.
+
+1.3. "Contribution"
+    means Covered Software of a particular Contributor.
+
+1.4. "Covered Software"
+    means Source Code Form to which the initial Contributor has attached
+    the notice in Exhibit A, the Executable Form of such Source Code
+    Form, and Modifications of such Source Code Form, in each case
+    including portions thereof.
+
+1.5. "Incompatible With Secondary Licenses"
+    means
+
+    (a) that the initial Contributor has attached the notice described
+        in Exhibit B to the Covered Software; or
+
+    (b) that the Covered Software was made available under the terms of
+        version 1.1 or earlier of the License, but not also under the
+        terms of a Secondary License.
+
+1.6. "Executable Form"
+    means any form of the work other than Source Code Form.
+
+1.7. "Larger Work"
+    means a work that combines Covered Software with other material, in 
+    a separate file or files, that is not Covered Software.
+
+1.8. "License"
+    means this document.
+
+1.9. "Licensable"
+    means having the right to grant, to the maximum extent possible,
+    whether at the time of the initial grant or subsequently, any and
+    all of the rights conveyed by this License.
+
+1.10. "Modifications"
+    means any of the following:
+
+    (a) any file in Source Code Form that results from an addition to,
+        deletion from, or modification of the contents of Covered
+        Software; or
+
+    (b) any new file in Source Code Form that contains any Covered
+        Software.
+
+1.11. "Patent Claims" of a Contributor
+    means any patent claim(s), including without limitation, method,
+    process, and apparatus claims, in any patent Licensable by such
+    Contributor that would be infringed, but for the grant of the
+    License, by the making, using, selling, offering for sale, having
+    made, import, or transfer of either its Contributions or its
+    Contributor Version.
+
+1.12. "Secondary License"
+    means either the GNU General Public License, Version 2.0, the GNU
+    Lesser General Public License, Version 2.1, the GNU Affero General
+    Public License, Version 3.0, or any later versions of those
+    licenses.
+
+1.13. "Source Code Form"
+    means the form of the work preferred for making modifications.
+
+1.14. "You" (or "Your")
+    means an individual or a legal entity exercising rights under this
+    License. For legal entities, "You" includes any entity that
+    controls, is controlled by, or is under common control with You. For
+    purposes of this definition, "control" means (a) the power, direct
+    or indirect, to cause the direction or management of such entity,
+    whether by contract or otherwise, or (b) ownership of more than
+    fifty percent (50%) of the outstanding shares or beneficial
+    ownership of such entity.
+
+2. License Grants and Conditions
+--------------------------------
+
+2.1. Grants
+
+Each Contributor hereby grants You a world-wide, royalty-free,
+non-exclusive license:
+
+(a) under intellectual property rights (other than patent or trademark)
+    Licensable by such Contributor to use, reproduce, make available,
+    modify, display, perform, distribute, and otherwise exploit its
+    Contributions, either on an unmodified basis, with Modifications, or
+    as part of a Larger Work; and
+
+(b) under Patent Claims of such Contributor to make, use, sell, offer
+    for sale, have made, import, and otherwise transfer either its
+    Contributions or its Contributor Version.
+
+2.2. Effective Date
+
+The licenses granted in Section 2.1 with respect to any Contribution
+become effective for each Contribution on the date the Contributor first
+distributes such Contribution.
+
+2.3. Limitations on Grant Scope
+
+The licenses granted in this Section 2 are the only rights granted under
+this License. No additional rights or licenses will be implied from the
+distribution or licensing of Covered Software under this License.
+Notwithstanding Section 2.1(b) above, no patent license is granted by a
+Contributor:
+
+(a) for any code that a Contributor has removed from Covered Software;
+    or
+
+(b) for infringements caused by: (i) Your and any other third party's
+    modifications of Covered Software, or (ii) the combination of its
+    Contributions with other software (except as part of its Contributor
+    Version); or
+
+(c) under Patent Claims infringed by Covered Software in the absence of
+    its Contributions.
+
+This License does not grant any rights in the trademarks, service marks,
+or logos of any Contributor (except as may be necessary to comply with
+the notice requirements in Section 3.4).
+
+2.4. Subsequent Licenses
+
+No Contributor makes additional grants as a result of Your choice to
+distribute the Covered Software under a subsequent version of this
+License (see Section 10.2) or under the terms of a Secondary License (if
+permitted under the terms of Section 3.3).
+
+2.5. Representation
+
+Each Contributor represents that the Contributor believes its
+Contributions are its original creation(s) or it has sufficient rights
+to grant the rights to its Contributions conveyed by this License.
+
+2.6. Fair Use
+
+This License is not intended to limit any rights You have under
+applicable copyright doctrines of fair use, fair dealing, or other
+equivalents.
+
+2.7. Conditions
+
+Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
+in Section 2.1.
+
+3. Responsibilities
+-------------------
+
+3.1. Distribution of Source Form
+
+All distribution of Covered Software in Source Code Form, including any
+Modifications that You create or to which You contribute, must be under
+the terms of this License. You must inform recipients that the Source
+Code Form of the Covered Software is governed by the terms of this
+License, and how they can obtain a copy of this License. You may not
+attempt to alter or restrict the recipients' rights in the Source Code
+Form.
+
+3.2. Distribution of Executable Form
+
+If You distribute Covered Software in Executable Form then:
+
+(a) such Covered Software must also be made available in Source Code
+    Form, as described in Section 3.1, and You must inform recipients of
+    the Executable Form how they can obtain a copy of such Source Code
+    Form by reasonable means in a timely manner, at a charge no more
+    than the cost of distribution to the recipient; and
+
+(b) You may distribute such Executable Form under the terms of this
+    License, or sublicense it under different terms, provided that the
+    license for the Executable Form does not attempt to limit or alter
+    the recipients' rights in the Source Code Form under this License.
+
+3.3. Distribution of a Larger Work
+
+You may create and distribute a Larger Work under terms of Your choice,
+provided that You also comply with the requirements of this License for
+the Covered Software. If the Larger Work is a combination of Covered
+Software with a work governed by one or more Secondary Licenses, and the
+Covered Software is not Incompatible With Secondary Licenses, this
+License permits You to additionally distribute such Covered Software
+under the terms of such Secondary License(s), so that the recipient of
+the Larger Work may, at their option, further distribute the Covered
+Software under the terms of either this License or such Secondary
+License(s).
+
+3.4. Notices
+
+You may not remove or alter the substance of any license notices
+(including copyright notices, patent notices, disclaimers of warranty,
+or limitations of liability) contained within the Source Code Form of
+the Covered Software, except that You may alter any license notices to
+the extent required to remedy known factual inaccuracies.
+
+3.5. Application of Additional Terms
+
+You may choose to offer, and to charge a fee for, warranty, support,
+indemnity or liability obligations to one or more recipients of Covered
+Software. However, You may do so only on Your own behalf, and not on
+behalf of any Contributor. You must make it absolutely clear that any
+such warranty, support, indemnity, or liability obligation is offered by
+You alone, and You hereby agree to indemnify every Contributor for any
+liability incurred by such Contributor as a result of warranty, support,
+indemnity or liability terms You offer. You may include additional
+disclaimers of warranty and limitations of liability specific to any
+jurisdiction.
+
+4. Inability to Comply Due to Statute or Regulation
+---------------------------------------------------
+
+If it is impossible for You to comply with any of the terms of this
+License with respect to some or all of the Covered Software due to
+statute, judicial order, or regulation then You must: (a) comply with
+the terms of this License to the maximum extent possible; and (b)
+describe the limitations and the code they affect. Such description must
+be placed in a text file included with all distributions of the Covered
+Software under this License. Except to the extent prohibited by statute
+or regulation, such description must be sufficiently detailed for a
+recipient of ordinary skill to be able to understand it.
+
+5. Termination
+--------------
+
+5.1. The rights granted under this License will terminate automatically
+if You fail to comply with any of its terms. However, if You become
+compliant, then the rights granted under this License from a particular
+Contributor are reinstated (a) provisionally, unless and until such
+Contributor explicitly and finally terminates Your grants, and (b) on an
+ongoing basis, if such Contributor fails to notify You of the
+non-compliance by some reasonable means prior to 60 days after You have
+come back into compliance. Moreover, Your grants from a particular
+Contributor are reinstated on an ongoing basis if such Contributor
+notifies You of the non-compliance by some reasonable means, this is the
+first time You have received notice of non-compliance with this License
+from such Contributor, and You become compliant prior to 30 days after
+Your receipt of the notice.
+
+5.2. If You initiate litigation against any entity by asserting a patent
+infringement claim (excluding declaratory judgment actions,
+counter-claims, and cross-claims) alleging that a Contributor Version
+directly or indirectly infringes any patent, then the rights granted to
+You by any and all Contributors for the Covered Software under Section
+2.1 of this License shall terminate.
+
+5.3. In the event of termination under Sections 5.1 or 5.2 above, all
+end user license agreements (excluding distributors and resellers) which
+have been validly granted by You or Your distributors under this License
+prior to termination shall survive termination.
+
+************************************************************************
+*                                                                      *
+*  6. Disclaimer of Warranty                                           *
+*  -------------------------                                           *
+*                                                                      *
+*  Covered Software is provided under this License on an "as is"       *
+*  basis, without warranty of any kind, either expressed, implied, or  *
+*  statutory, including, without limitation, warranties that the       *
+*  Covered Software is free of defects, merchantable, fit for a        *
+*  particular purpose or non-infringing. The entire risk as to the     *
+*  quality and performance of the Covered Software is with You.        *
+*  Should any Covered Software prove defective in any respect, You     *
+*  (not any Contributor) assume the cost of any necessary servicing,   *
+*  repair, or correction. This disclaimer of warranty constitutes an   *
+*  essential part of this License. No use of any Covered Software is   *
+*  authorized under this License except under this disclaimer.         *
+*                                                                      *
+************************************************************************
+
+************************************************************************
+*                                                                      *
+*  7. Limitation of Liability                                          *
+*  --------------------------                                          *
+*                                                                      *
+*  Under no circumstances and under no legal theory, whether tort      *
+*  (including negligence), contract, or otherwise, shall any           *
+*  Contributor, or anyone who distributes Covered Software as          *
+*  permitted above, be liable to You for any direct, indirect,         *
+*  special, incidental, or consequential damages of any character      *
+*  including, without limitation, damages for lost profits, loss of    *
+*  goodwill, work stoppage, computer failure or malfunction, or any    *
+*  and all other commercial damages or losses, even if such party      *
+*  shall have been informed of the possibility of such damages. This   *
+*  limitation of liability shall not apply to liability for death or   *
+*  personal injury resulting from such party's negligence to the       *
+*  extent applicable law prohibits such limitation. Some               *
+*  jurisdictions do not allow the exclusion or limitation of           *
+*  incidental or consequential damages, so this exclusion and          *
+*  limitation may not apply to You.                                    *
+*                                                                      *
+************************************************************************
+
+8. Litigation
+-------------
+
+Any litigation relating to this License may be brought only in the
+courts of a jurisdiction where the defendant maintains its principal
+place of business and such litigation shall be governed by laws of that
+jurisdiction, without reference to its conflict-of-law provisions.
+Nothing in this Section shall prevent a party's ability to bring
+cross-claims or counter-claims.
+
+9. Miscellaneous
+----------------
+
+This License represents the complete agreement concerning the subject
+matter hereof. If any provision of this License is held to be
+unenforceable, such provision shall be reformed only to the extent
+necessary to make it enforceable. Any law or regulation which provides
+that the language of a contract shall be construed against the drafter
+shall not be used to construe this License against a Contributor.
+
+10. Versions of the License
+---------------------------
+
+10.1. New Versions
+
+Mozilla Foundation is the license steward. Except as provided in Section
+10.3, no one other than the license steward has the right to modify or
+publish new versions of this License. Each version will be given a
+distinguishing version number.
+
+10.2. Effect of New Versions
+
+You may distribute the Covered Software under the terms of the version
+of the License under which You originally received the Covered Software,
+or under the terms of any subsequent version published by the license
+steward.
+
+10.3. Modified Versions
+
+If you create software not governed by this License, and you want to
+create a new license for such software, you may create and use a
+modified version of this License if you rename the license and remove
+any references to the name of the license steward (except to note that
+such modified license differs from this License).
+
+10.4. Distributing Source Code Form that is Incompatible With Secondary
+Licenses
+
+If You choose to distribute Source Code Form that is Incompatible With
+Secondary Licenses under the terms of this version of the License, the
+notice described in Exhibit B of this License must be attached.
+
+Exhibit A - Source Code Form License Notice
+-------------------------------------------
+
+  This Source Code Form is subject to the terms of the Mozilla Public
+  License, v. 2.0. If a copy of the MPL was not distributed with this
+  file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular
+file, then You may include the notice in a location (such as a LICENSE
+file in a relevant directory) where a recipient would be likely to look
+for such a notice.
+
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+---------------------------------------------------------
+
+  This Source Code Form is "Incompatible With Secondary Licenses", as
+  defined by the Mozilla Public License, v. 2.0.
diff --git a/LICENSES/CC-BY-SA-4.0.txt b/LICENSES/CC-BY-SA-4.0.txt
new file mode 100644
index 00000000..835a6836
--- /dev/null
+++ b/LICENSES/CC-BY-SA-4.0.txt
@@ -0,0 +1,170 @@
+Creative Commons Attribution-ShareAlike 4.0 International
+
+ Creative Commons Corporation (“Creative Commons”) is not a law firm and does not provide legal services or legal advice. Distribution of Creative Commons public licenses does not create a lawyer-client or other relationship. Creative Commons makes its licenses and related information available on an “as-is” basis. Creative Commons gives no warranties regarding its licenses, any material licensed under their terms and conditions, or any related information. Creative Commons disclaims all liability for damages resulting from their use to the fullest extent possible.
+
+Using Creative Commons Public Licenses
+
+Creative Commons public licenses provide a standard set of terms and conditions that creators and other rights holders may use to share original works of authorship and other material subject to copyright and certain other rights specified in the public license below. The following considerations are for informational purposes only, are not exhaustive, and do not form part of our licenses.
+
+Considerations for licensors: Our public licenses are intended for use by those authorized to give the public permission to use material in ways otherwise restricted by copyright and certain other rights. Our licenses are irrevocable. Licensors should read and understand the terms and conditions of the license they choose before applying it. Licensors should also secure all rights necessary before applying our licenses so that the public can reuse the material as expected. Licensors should clearly mark any material not subject to the license. This includes other CC-licensed material, or material used under an exception or limitation to copyright. More considerations for licensors.
+
+Considerations for the public: By using one of our public licenses, a licensor grants the public permission to use the licensed material under specified terms and conditions. If the licensor’s permission is not necessary for any reason–for example, because of any applicable exception or limitation to copyright–then that use is not regulated by the license. Our licenses grant only permissions under copyright and certain other rights that a licensor has authority to grant. Use of the licensed material may still be restricted for other reasons, including because others have copyright or other rights in the material. A licensor may make special requests, such as asking that all changes be marked or described.
+
+Although not required by our licenses, you are encouraged to respect those requests where reasonable. More considerations for the public.
+
+Creative Commons Attribution-ShareAlike 4.0 International Public License
+
+By exercising the Licensed Rights (defined below), You accept and agree to be bound by the terms and conditions of this Creative Commons Attribution-ShareAlike 4.0 International Public License ("Public License"). To the extent this Public License may be interpreted as a contract, You are granted the Licensed Rights in consideration of Your acceptance of these terms and conditions, and the Licensor grants You such rights in consideration of benefits the Licensor receives from making the Licensed Material available under these terms and conditions.
+
+Section 1 – Definitions.
+
+     a.	Adapted Material means material subject to Copyright and Similar Rights that is derived from or based upon the Licensed Material and in which the Licensed Material is translated, altered, arranged, transformed, or otherwise modified in a manner requiring permission under the Copyright and Similar Rights held by the Licensor. For purposes of this Public License, where the Licensed Material is a musical work, performance, or sound recording, Adapted Material is always produced where the Licensed Material is synched in timed relation with a moving image.
+
+     b.	Adapter's License means the license You apply to Your Copyright and Similar Rights in Your contributions to Adapted Material in accordance with the terms and conditions of this Public License.
+
+     c.	BY-SA Compatible License means a license listed at creativecommons.org/compatiblelicenses, approved by Creative Commons as essentially the equivalent of this Public License.
+
+     d.	Copyright and Similar Rights means copyright and/or similar rights closely related to copyright including, without limitation, performance, broadcast, sound recording, and Sui Generis Database Rights, without regard to how the rights are labeled or categorized. For purposes of this Public License, the rights specified in Section 2(b)(1)-(2) are not Copyright and Similar Rights.
+
+     e.	Effective Technological Measures means those measures that, in the absence of proper authority, may not be circumvented under laws fulfilling obligations under Article 11 of the WIPO Copyright Treaty adopted on December 20, 1996, and/or similar international agreements.
+
+     f.	Exceptions and Limitations means fair use, fair dealing, and/or any other exception or limitation to Copyright and Similar Rights that applies to Your use of the Licensed Material.
+
+     g.	License Elements means the license attributes listed in the name of a Creative Commons Public License. The License Elements of this Public License are Attribution and ShareAlike.
+
+     h.	Licensed Material means the artistic or literary work, database, or other material to which the Licensor applied this Public License.
+
+     i.	Licensed Rights means the rights granted to You subject to the terms and conditions of this Public License, which are limited to all Copyright and Similar Rights that apply to Your use of the Licensed Material and that the Licensor has authority to license.
+
+     j.	Licensor means the individual(s) or entity(ies) granting rights under this Public License.
+
+     k.	Share means to provide material to the public by any means or process that requires permission under the Licensed Rights, such as reproduction, public display, public performance, distribution, dissemination, communication, or importation, and to make material available to the public including in ways that members of the public may access the material from a place and at a time individually chosen by them.
+
+     l.	Sui Generis Database Rights means rights other than copyright resulting from Directive 96/9/EC of the European Parliament and of the Council of 11 March 1996 on the legal protection of databases, as amended and/or succeeded, as well as other essentially equivalent rights anywhere in the world.
+
+     m.	You means the individual or entity exercising the Licensed Rights under this Public License. Your has a corresponding meaning.
+
+Section 2 – Scope.
+
+     a.	License grant.
+
+          1. Subject to the terms and conditions of this Public License, the Licensor hereby grants You a worldwide, royalty-free, non-sublicensable, non-exclusive, irrevocable license to exercise the Licensed Rights in the Licensed Material to:
+
+               A. reproduce and Share the Licensed Material, in whole or in part; and
+
+               B. produce, reproduce, and Share Adapted Material.
+
+          2. Exceptions and Limitations. For the avoidance of doubt, where Exceptions and Limitations apply to Your use, this Public License does not apply, and You do not need to comply with its terms and conditions.
+
+          3. Term. The term of this Public License is specified in Section 6(a).
+
+          4. Media and formats; technical modifications allowed. The Licensor authorizes You to exercise the Licensed Rights in all media and formats whether now known or hereafter created, and to make technical modifications necessary to do so. The Licensor waives and/or agrees not to assert any right or authority to forbid You from making technical modifications necessary to exercise the Licensed Rights, including technical modifications necessary to circumvent Effective Technological Measures. For purposes of this Public License, simply making modifications authorized by this Section 2(a)(4) never produces Adapted Material.
+
+          5. Downstream recipients.
+
+               A. Offer from the Licensor – Licensed Material. Every recipient of the Licensed Material automatically receives an offer from the Licensor to exercise the Licensed Rights under the terms and conditions of this Public License.
+
+               B. Additional offer from the Licensor – Adapted Material. Every recipient of Adapted Material from You automatically receives an offer from the Licensor to exercise the Licensed Rights in the Adapted Material under the conditions of the Adapter’s License You apply.
+
+               C. No downstream restrictions. You may not offer or impose any additional or different terms or conditions on, or apply any Effective Technological Measures to, the Licensed Material if doing so restricts exercise of the Licensed Rights by any recipient of the Licensed Material.
+
+          6. No endorsement. Nothing in this Public License constitutes or may be construed as permission to assert or imply that You are, or that Your use of the Licensed Material is, connected with, or sponsored, endorsed, or granted official status by, the Licensor or others designated to receive attribution as provided in Section 3(a)(1)(A)(i).
+
+     b.	Other rights.
+
+          1. Moral rights, such as the right of integrity, are not licensed under this Public License, nor are publicity, privacy, and/or other similar personality rights; however, to the extent possible, the Licensor waives and/or agrees not to assert any such rights held by the Licensor to the limited extent necessary to allow You to exercise the Licensed Rights, but not otherwise.
+
+          2. Patent and trademark rights are not licensed under this Public License.
+
+          3. To the extent possible, the Licensor waives any right to collect royalties from You for the exercise of the Licensed Rights, whether directly or through a collecting society under any voluntary or waivable statutory or compulsory licensing scheme. In all other cases the Licensor expressly reserves any right to collect such royalties.
+
+Section 3 – License Conditions.
+
+Your exercise of the Licensed Rights is expressly made subject to the following conditions.
+
+     a.	Attribution.
+
+          1. If You Share the Licensed Material (including in modified form), You must:
+
+               A. retain the following if it is supplied by the Licensor with the Licensed Material:
+
+                    i.	identification of the creator(s) of the Licensed Material and any others designated to receive attribution, in any reasonable manner requested by the Licensor (including by pseudonym if designated);
+
+                    ii.	a copyright notice;
+
+                    iii. a notice that refers to this Public License;
+
+                    iv.	a notice that refers to the disclaimer of warranties;
+
+                    v.	a URI or hyperlink to the Licensed Material to the extent reasonably practicable;
+
+               B. indicate if You modified the Licensed Material and retain an indication of any previous modifications; and
+
+               C. indicate the Licensed Material is licensed under this Public License, and include the text of, or the URI or hyperlink to, this Public License.
+
+          2. You may satisfy the conditions in Section 3(a)(1) in any reasonable manner based on the medium, means, and context in which You Share the Licensed Material. For example, it may be reasonable to satisfy the conditions by providing a URI or hyperlink to a resource that includes the required information.
+
+          3. If requested by the Licensor, You must remove any of the information required by Section 3(a)(1)(A) to the extent reasonably practicable.
+
+     b.	ShareAlike.In addition to the conditions in Section 3(a), if You Share Adapted Material You produce, the following conditions also apply.
+
+          1. The Adapter’s License You apply must be a Creative Commons license with the same License Elements, this version or later, or a BY-SA Compatible License.
+
+          2. You must include the text of, or the URI or hyperlink to, the Adapter's License You apply. You may satisfy this condition in any reasonable manner based on the medium, means, and context in which You Share Adapted Material.
+
+          3. You may not offer or impose any additional or different terms or conditions on, or apply any Effective Technological Measures to, Adapted Material that restrict exercise of the rights granted under the Adapter's License You apply.
+
+Section 4 – Sui Generis Database Rights.
+
+Where the Licensed Rights include Sui Generis Database Rights that apply to Your use of the Licensed Material:
+
+     a.	for the avoidance of doubt, Section 2(a)(1) grants You the right to extract, reuse, reproduce, and Share all or a substantial portion of the contents of the database;
+
+     b.	if You include all or a substantial portion of the database contents in a database in which You have Sui Generis Database Rights, then the database in which You have Sui Generis Database Rights (but not its individual contents) is Adapted Material, including for purposes of Section 3(b); and
+
+     c.	You must comply with the conditions in Section 3(a) if You Share all or a substantial portion of the contents of the database.
+For the avoidance of doubt, this Section 4 supplements and does not replace Your obligations under this Public License where the Licensed Rights include other Copyright and Similar Rights.
+
+Section 5 – Disclaimer of Warranties and Limitation of Liability.
+
+     a.	Unless otherwise separately undertaken by the Licensor, to the extent possible, the Licensor offers the Licensed Material as-is and as-available, and makes no representations or warranties of any kind concerning the Licensed Material, whether express, implied, statutory, or other. This includes, without limitation, warranties of title, merchantability, fitness for a particular purpose, non-infringement, absence of latent or other defects, accuracy, or the presence or absence of errors, whether or not known or discoverable. Where disclaimers of warranties are not allowed in full or in part, this disclaimer may not apply to You.
+
+     b.	To the extent possible, in no event will the Licensor be liable to You on any legal theory (including, without limitation, negligence) or otherwise for any direct, special, indirect, incidental, consequential, punitive, exemplary, or other losses, costs, expenses, or damages arising out of this Public License or use of the Licensed Material, even if the Licensor has been advised of the possibility of such losses, costs, expenses, or damages. Where a limitation of liability is not allowed in full or in part, this limitation may not apply to You.
+
+     c.	The disclaimer of warranties and limitation of liability provided above shall be interpreted in a manner that, to the extent possible, most closely approximates an absolute disclaimer and waiver of all liability.
+
+Section 6 – Term and Termination.
+
+     a.	This Public License applies for the term of the Copyright and Similar Rights licensed here. However, if You fail to comply with this Public License, then Your rights under this Public License terminate automatically.
+
+     b.	Where Your right to use the Licensed Material has terminated under Section 6(a), it reinstates:
+
+          1. automatically as of the date the violation is cured, provided it is cured within 30 days of Your discovery of the violation; or
+
+          2. upon express reinstatement by the Licensor.
+
+     c.	For the avoidance of doubt, this Section 6(b) does not affect any right the Licensor may have to seek remedies for Your violations of this Public License.
+
+     d.	For the avoidance of doubt, the Licensor may also offer the Licensed Material under separate terms or conditions or stop distributing the Licensed Material at any time; however, doing so will not terminate this Public License.
+
+     e.	Sections 1, 5, 6, 7, and 8 survive termination of this Public License.
+
+Section 7 – Other Terms and Conditions.
+
+     a.	The Licensor shall not be bound by any additional or different terms or conditions communicated by You unless expressly agreed.
+
+     b.	Any arrangements, understandings, or agreements regarding the Licensed Material not stated herein are separate from and independent of the terms and conditions of this Public License.
+
+Section 8 – Interpretation.
+
+     a.	For the avoidance of doubt, this Public License does not, and shall not be interpreted to, reduce, limit, restrict, or impose conditions on any use of the Licensed Material that could lawfully be made without permission under this Public License.
+
+     b.	To the extent possible, if any provision of this Public License is deemed unenforceable, it shall be automatically reformed to the minimum extent necessary to make it enforceable. If the provision cannot be reformed, it shall be severed from this Public License without affecting the enforceability of the remaining terms and conditions.
+
+     c.	No term or condition of this Public License will be waived and no failure to comply consented to unless expressly agreed to by the Licensor.
+
+     d.	Nothing in this Public License constitutes or may be interpreted as a limitation upon, or waiver of, any privileges and immunities that apply to the Licensor or You, including from the legal processes of any jurisdiction or authority.
+
+Creative Commons is not a party to its public licenses. Notwithstanding, Creative Commons may elect to apply one of its public licenses to material it publishes and in those instances will be considered the “Licensor.” Except for the limited purpose of indicating that material is shared under a Creative Commons public license or as otherwise permitted by the Creative Commons policies published at creativecommons.org/policies, Creative Commons does not authorize the use of the trademark “Creative Commons” or any other trademark or logo of Creative Commons without its prior written consent including, without limitation, in connection with any unauthorized modifications to any of its public licenses or any other arrangements, understandings, or agreements concerning use of licensed material. For the avoidance of doubt, this paragraph does not form part of the public licenses.
+
+Creative Commons may be contacted at creativecommons.org.
diff --git a/LICENSES/MIT.txt b/LICENSES/MIT.txt
deleted file mode 100644
index 66f37951..00000000
--- a/LICENSES/MIT.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-MIT License
-
-Copyright (c) 2024-2025 ECHIDNA Project Contributors
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
diff --git a/LICENSES/PMPL-1.0-or-later.txt b/LICENSES/PMPL-1.0-or-later.txt
deleted file mode 100644
index 711e372c..00000000
--- a/LICENSES/PMPL-1.0-or-later.txt
+++ /dev/null
@@ -1,162 +0,0 @@
-SPDX-License-Identifier: MPL-2.0
-SPDX-FileCopyrightText: 2025 Palimpsest Stewardship Council
-
-================================================================================
-PALIMPSEST-MPL LICENSE VERSION 1.0
-================================================================================
-
-File-level copyleft with ethical use and quantum-safe provenance
-
-Based on Mozilla Public License 2.0
-
---------------------------------------------------------------------------------
-PREAMBLE
---------------------------------------------------------------------------------
-
-This License extends the Mozilla Public License 2.0 (MPL-2.0) with provisions
-for ethical use, post-quantum cryptographic provenance, and emotional lineage
-protection. The base MPL-2.0 terms apply except where explicitly modified by
-the Exhibits below.
-
-Like a palimpsest manuscript where each layer builds upon what came before,
-this license recognizes that creative works carry history, context, and meaning
-that transcend mere code or text.
-
---------------------------------------------------------------------------------
-SECTION 1: BASE LICENSE
---------------------------------------------------------------------------------
-
-This License incorporates the full text of Mozilla Public License 2.0 by
-reference. The complete MPL-2.0 text is available at:
-https://www.mozilla.org/en-US/MPL/2.0/
-
-All terms, conditions, and definitions from MPL-2.0 apply except where
-explicitly modified by the Exhibits in this License.
-
---------------------------------------------------------------------------------
-SECTION 2: ADDITIONAL DEFINITIONS
---------------------------------------------------------------------------------
-
-2.1. "Emotional Lineage"
-    means the narrative, cultural, symbolic, and contextual meaning embedded
-    in Covered Software, including but not limited to: protest traditions,
-    cultural heritage, trauma narratives, and community stories.
-
-2.2. "Provenance Metadata"
-    means cryptographically signed attribution information attached to or
-    associated with Covered Software, including author identities, timestamps,
-    modification history, and lineage references.
-
-2.3. "Non-Interpretive System"
-    means any automated system that processes Covered Software without
-    preserving or considering its Emotional Lineage, including but not
-    limited to: AI training pipelines, content aggregators, and automated
-    summarization tools.
-
-2.4. "Quantum-Safe Signature"
-    means a cryptographic signature using algorithms resistant to attacks
-    by quantum computers, as specified in Exhibit B.
-
---------------------------------------------------------------------------------
-SECTION 3: ETHICAL USE REQUIREMENTS
---------------------------------------------------------------------------------
-
-In addition to the rights and obligations under MPL-2.0:
-
-3.1. Emotional Lineage Preservation
-    You must make reasonable efforts to preserve and communicate the
-    Emotional Lineage of Covered Software when distributing or creating
-    derivative works. This includes maintaining narrative context, cultural
-    attributions, and symbolic meaning where documented.
-
-3.2. Non-Interpretive System Notice
-    If You use Covered Software as input to a Non-Interpretive System, You
-    must:
-    (a) document such use in a publicly accessible manner; and
-    (b) not claim that outputs of such systems carry the Emotional Lineage
-        of the original work without explicit permission from Contributors.
-
-3.3. Ethical Use Declaration
-    Commercial use of Covered Software requires acknowledgment that You have
-    read and understood Exhibit A (Ethical Use Guidelines) and agree to act
-    in good faith accordance with its principles.
-
-See Exhibit A for complete Ethical Use Guidelines.
-
---------------------------------------------------------------------------------
-SECTION 4: PROVENANCE REQUIREMENTS
---------------------------------------------------------------------------------
-
-4.1. Metadata Preservation
-    You must not strip, alter, or obscure Provenance Metadata from Covered
-    Software except where technically necessary and with clear documentation
-    of any changes.
-
-4.2. Quantum-Safe Provenance (Optional)
-    Contributors may sign their Contributions using Quantum-Safe Signatures.
-    If Quantum-Safe Signatures are present, You must preserve them in all
-    distributions.
-
-4.3. Lineage Chain
-    When creating derivative works, You should extend the provenance chain
-    to include Your own contributions, maintaining cryptographic linkage to
-    prior Contributors where feasible.
-
-See Exhibit B for Quantum-Safe Provenance specifications.
-
---------------------------------------------------------------------------------
-SECTION 5: GOVERNANCE
---------------------------------------------------------------------------------
-
-5.1. Stewardship Council
-    This License is maintained by the Palimpsest Stewardship Council, which
-    may issue clarifications, interpretive guidance, and future versions.
-
-5.2. Version Selection
-    You may use Covered Software under this version of the License or any
-    later version published by the Palimpsest Stewardship Council.
-
-5.3. Dispute Resolution
-    Disputes regarding interpretation of Ethical Use Requirements (Section 3)
-    should first be submitted to the Palimpsest Stewardship Council for
-    non-binding guidance before pursuing legal remedies.
-
---------------------------------------------------------------------------------
-SECTION 6: COMPATIBILITY
---------------------------------------------------------------------------------
-
-6.1. MPL-2.0 Compatibility
-    Covered Software under this License may be combined with software under
-    MPL-2.0. The combined work must comply with both licenses.
-
-6.2. Secondary Licenses
-    The Secondary License provisions of MPL-2.0 Section 3.3 apply to this
-    License.
-
---------------------------------------------------------------------------------
-EXHIBITS
---------------------------------------------------------------------------------
-
-Exhibit A - Ethical Use Guidelines
-Exhibit B - Quantum-Safe Provenance Specification
-
-See separate files:
-- EXHIBIT-A-ETHICAL-USE.txt
-- EXHIBIT-B-QUANTUM-SAFE.txt
-
---------------------------------------------------------------------------------
-END OF PALIMPSEST-MPL-1.0 LICENSE TEXT
---------------------------------------------------------------------------------
-
-For exhibits, specifications, provenance rules, and governance:
-https://github.com/hyperpolymath/palimpsest-license
-
-For legal frameworks and jurisdictional analysis:
-See /legal/frameworks/
-
-For provenance and audit tooling:
-See /tools/ and /spec/PROVENANCE-SPEC.adoc
-
-For questions about this License:
-- Repository: https://github.com/hyperpolymath/palimpsest-license
-- Council: contact via repository Issues
diff --git a/LICENSES/PMPL-1.0.txt b/LICENSES/PMPL-1.0.txt
deleted file mode 100644
index ec540b34..00000000
--- a/LICENSES/PMPL-1.0.txt
+++ /dev/null
@@ -1,153 +0,0 @@
-SPDX-License-Identifier: MPL-2.0
-SPDX-FileCopyrightText: 2024-2025 Palimpsest Stewardship Council
-
-================================================================================
-PALIMPSEST-MPL LICENSE VERSION 1.0
-================================================================================
-
-File-level copyleft with ethical use and quantum-safe provenance
-
-Based on Mozilla Public License 2.0
-
---------------------------------------------------------------------------------
-PREAMBLE
---------------------------------------------------------------------------------
-
-This License extends the Mozilla Public License 2.0 (MPL-2.0) with provisions
-for ethical use, post-quantum cryptographic provenance, and emotional lineage
-protection. The base MPL-2.0 terms apply except where explicitly modified by
-the Exhibits below.
-
-Like a palimpsest manuscript where each layer builds upon what came before,
-this license recognizes that creative works carry history, context, and meaning
-that transcend mere code or text.
-
---------------------------------------------------------------------------------
-SECTION 1: BASE LICENSE
---------------------------------------------------------------------------------
-
-This License incorporates the full text of Mozilla Public License 2.0 by
-reference. The complete MPL-2.0 text is available at:
-https://www.mozilla.org/en-US/MPL/2.0/
-
-All terms, conditions, and definitions from MPL-2.0 apply except where
-explicitly modified by the Exhibits in this License.
-
---------------------------------------------------------------------------------
-SECTION 2: ADDITIONAL DEFINITIONS
---------------------------------------------------------------------------------
-
-2.1. "Emotional Lineage"
-    means the narrative, cultural, symbolic, and contextual meaning embedded
-    in Covered Software, including but not limited to: protest traditions,
-    cultural heritage, trauma narratives, and community stories.
-
-2.2. "Provenance Metadata"
-    means cryptographically signed attribution information attached to or
-    associated with Covered Software, including author identities, timestamps,
-    modification history, and lineage references.
-
-2.3. "Non-Interpretive System"
-    means any automated system that processes Covered Software without
-    preserving or considering its Emotional Lineage, including but not
-    limited to: AI training pipelines, content aggregators, and automated
-    summarization tools.
-
-2.4. "Quantum-Safe Signature"
-    means a cryptographic signature using algorithms resistant to attacks
-    by quantum computers, as specified in Exhibit B.
-
---------------------------------------------------------------------------------
-SECTION 3: ETHICAL USE REQUIREMENTS
---------------------------------------------------------------------------------
-
-In addition to the rights and obligations under MPL-2.0:
-
-3.1. Emotional Lineage Preservation
-    You must make reasonable efforts to preserve and communicate the
-    Emotional Lineage of Covered Software when distributing or creating
-    derivative works. This includes maintaining narrative context, cultural
-    attributions, and symbolic meaning where documented.
-
-3.2. Non-Interpretive System Notice
-    If You use Covered Software as input to a Non-Interpretive System, You
-    must:
-    (a) document such use in a publicly accessible manner; and
-    (b) not claim that outputs of such systems carry the Emotional Lineage
-        of the original work without explicit permission from Contributors.
-
-3.3. Ethical Use Declaration
-    Commercial use of Covered Software requires acknowledgment that You have
-    read and understood Exhibit A (Ethical Use Guidelines) and agree to act
-    in good faith accordance with its principles.
-
-See Exhibit A for complete Ethical Use Guidelines.
-
---------------------------------------------------------------------------------
-SECTION 4: PROVENANCE REQUIREMENTS
---------------------------------------------------------------------------------
-
-4.1. Metadata Preservation
-    You must not strip, alter, or obscure Provenance Metadata from Covered
-    Software except where technically necessary and with clear documentation
-    of any changes.
-
-4.2. Quantum-Safe Provenance (Optional)
-    Contributors may sign their Contributions using Quantum-Safe Signatures.
-    If Quantum-Safe Signatures are present, You must preserve them in all
-    distributions.
-
-4.3. Lineage Chain
-    When creating derivative works, You should extend the provenance chain
-    to include Your own contributions, maintaining cryptographic linkage to
-    prior Contributors where feasible.
-
-See Exhibit B for Quantum-Safe Provenance specifications.
-
---------------------------------------------------------------------------------
-SECTION 5: GOVERNANCE
---------------------------------------------------------------------------------
-
-5.1. Stewardship Council
-    This License is maintained by the Palimpsest Stewardship Council, which
-    may issue clarifications, interpretive guidance, and future versions.
-
-5.2. Version Selection
-    You may use Covered Software under this version of the License or any
-    later version published by the Palimpsest Stewardship Council.
-
-5.3. Dispute Resolution
-    Disputes regarding interpretation of Ethical Use Requirements (Section 3)
-    should first be submitted to the Palimpsest Stewardship Council for
-    non-binding guidance before pursuing legal remedies.
-
---------------------------------------------------------------------------------
-SECTION 6: COMPATIBILITY
---------------------------------------------------------------------------------
-
-6.1. MPL-2.0 Compatibility
-    Covered Software under this License may be combined with software under
-    MPL-2.0. The combined work must comply with both licenses.
-
-6.2. Secondary Licenses
-    The Secondary License provisions of MPL-2.0 Section 3.3 apply to this
-    License.
-
---------------------------------------------------------------------------------
-EXHIBITS
---------------------------------------------------------------------------------
-
-Exhibit A - Ethical Use Guidelines
-Exhibit B - Quantum-Safe Provenance Specification
-
-See separate files:
-- EXHIBIT-A-ETHICAL-USE.txt
-- EXHIBIT-B-QUANTUM-SAFE.txt
-
---------------------------------------------------------------------------------
-END OF PALIMPSEST-MPL LICENSE VERSION 1.0
---------------------------------------------------------------------------------
-
-For questions about this License:
-- Repository: https://github.com/hyperpolymath/palimpsest-license
-- Council: contact via repository Issues
diff --git a/LICENSES/Palimpsest-0.6.txt b/LICENSES/Palimpsest-0.6.txt
deleted file mode 100644
index 39911a53..00000000
--- a/LICENSES/Palimpsest-0.6.txt
+++ /dev/null
@@ -1,93 +0,0 @@
-Palimpsest License v0.6
-
-Copyright (c) 2024-2025 ECHIDNA Project Contributors
-
-This work is licensed under the Palimpsest License v0.6.
-
-PREAMBLE
-
-The Palimpsest License is designed to promote open collaboration while
-preserving attribution and the integrity of derivative works. It encourages
-transparency, community contribution, and ethical use of software.
-
-TERMS AND CONDITIONS
-
-1. DEFINITIONS
-
-   "Work" refers to the copyrightable work licensed under this License.
-
-   "You" (or "Your") refers to an individual or legal entity exercising
-   permissions granted by this License.
-
-   "Derivative Work" means any work based upon the Work or upon the Work and
-   other pre-existing works.
-
-   "Contribution" means any work of authorship that is intentionally submitted
-   to the Licensor for inclusion in the Work.
-
-2. GRANT OF LICENSE
-
-   Subject to the terms and conditions of this License, each Contributor hereby
-   grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
-   irrevocable license to:
-
-   a) Reproduce, prepare Derivative Works of, publicly display, publicly perform,
-      sublicense, and distribute the Work and such Derivative Works.
-
-   b) Patent claims licensable by such Contributor that are necessarily infringed
-      by their Contribution(s) alone or by combination with the Work.
-
-3. ATTRIBUTION
-
-   You must retain, in the Source form of any Derivative Works that You distribute,
-   all copyright, patent, trademark, and attribution notices from the Source form
-   of the Work, excluding those notices that do not pertain to any part of the
-   Derivative Works.
-
-4. TRANSPARENCY
-
-   If You distribute the Work or Derivative Works thereof, You must:
-
-   a) Make the Source form available under this License.
-
-   b) Provide clear documentation of any modifications made to the Work.
-
-   c) Include a prominent notice stating that You changed the Work.
-
-5. PRESERVATION OF FREEDOMS
-
-   You may not impose any further restrictions on the exercise of the rights
-   granted or affirmed under this License.
-
-6. ETHICAL USE
-
-   This License does not grant permission to use the Work in applications that:
-
-   a) Deliberately cause harm to individuals or communities.
-
-   b) Violate fundamental human rights as recognized by international law.
-
-   c) Engage in surveillance or tracking without informed consent.
-
-7. DISCLAIMER OF WARRANTY
-
-   THE WORK IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
-   INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
-   PARTICULAR PURPOSE AND NONINFRINGEMENT.
-
-8. LIMITATION OF LIABILITY
-
-   IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-   DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-   ARISING FROM, OUT OF OR IN CONNECTION WITH THE WORK OR THE USE OR OTHER
-   DEALINGS IN THE WORK.
-
-9. ACCEPTANCE
-
-   By exercising any rights to the Work provided here, You accept and agree to
-   be bound by the terms of this License.
-
-For more information about the Palimpsest License, visit:
-https://palimpsest.license
-
-END OF LICENSE
diff --git a/MAINTAINERS.adoc b/MAINTAINERS.adoc
index 9bd854ec..f45d93b5 100644
--- a/MAINTAINERS.adoc
+++ b/MAINTAINERS.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 = Maintainers
 :toc: preamble
 
diff --git a/QUICKSTART-USER.adoc b/QUICKSTART-USER.adoc
index 662f6590..e2f4b2ca 100644
--- a/QUICKSTART-USER.adoc
+++ b/QUICKSTART-USER.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = ECHIDNA: Quickstart Guide
 :toc: macro
diff --git a/README.adoc b/README.adoc
index e304fd97..07cae194 100644
--- a/README.adoc
+++ b/README.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // SPDX-FileCopyrightText: 2025-2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 
 = ECHIDNA
diff --git a/README.md b/README.md
index 85903ad4..3002935d 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 [![Green Hosting](https://api.thegreenwebfoundation.org/greencheckimage/nesy-prover.dev)](https://www.thegreenwebfoundation.org/green-web-check/?url=nesy-prover.dev)
 
 <!--
-  SPDX-License-Identifier: MPL-2.0
+  SPDX-License-Identifier: CC-BY-SA-4.0
   SPDX-FileCopyrightText: 2025-2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 
   README.adoc is canonical (RSR-H9). This Markdown file is a thin
diff --git a/RSR_COMPLIANCE.adoc b/RSR_COMPLIANCE.adoc
index d30c385f..4e47f221 100644
--- a/RSR_COMPLIANCE.adoc
+++ b/RSR_COMPLIANCE.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 
 = ECHIDNA — RSR / CCCP Compliance Statement
diff --git a/SECURITY.md b/SECURITY.md
index bc76453a..79b63878 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -1,6 +1,6 @@
 <!--
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2024-2025 ECHIDNA Project Contributors
 -->
 
diff --git a/TEST_CI_ECHIDNA.md b/TEST_CI_ECHIDNA.md
index daccbfa8..f9230a88 100644
--- a/TEST_CI_ECHIDNA.md
+++ b/TEST_CI_ECHIDNA.md
@@ -1,6 +1,6 @@
 # CI Test for ECHIDNA
 
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 
 This is a test file to trigger CI workflows for echidna.
 
diff --git a/container/README.adoc b/container/README.adoc
index 8dec1f72..e10644b4 100644
--- a/container/README.adoc
+++ b/container/README.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 = ECHIDNA Container Ecosystem (Stapeln)
 :author: Jonathan D.A. Jewell
 
diff --git a/crates/echidna-core-spark/CREUSOT-SETUP.md b/crates/echidna-core-spark/CREUSOT-SETUP.md
index afea85d5..2caa775c 100644
--- a/crates/echidna-core-spark/CREUSOT-SETUP.md
+++ b/crates/echidna-core-spark/CREUSOT-SETUP.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 
 # Creusot Setup Guide
 
diff --git a/crates/echidna-mcp/README.md b/crates/echidna-mcp/README.md
index 9ebeeda1..960888d1 100644
--- a/crates/echidna-mcp/README.md
+++ b/crates/echidna-mcp/README.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
 
 # echidna-mcp
diff --git a/crates/echidna-wire/schemas/VERSIONING.md b/crates/echidna-wire/schemas/VERSIONING.md
index 8148a549..fc3c1b7f 100644
--- a/crates/echidna-wire/schemas/VERSIONING.md
+++ b/crates/echidna-wire/schemas/VERSIONING.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 
 # ECHIDNA Wire Schema Versioning Policy (`crates/echidna-wire`)
 
diff --git a/data/synonyms/README.adoc b/data/synonyms/README.adoc
index c1f2c30c..cdfa8cbc 100644
--- a/data/synonyms/README.adoc
+++ b/data/synonyms/README.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 = Tactic / Lemma Synonym Tables
 :toc: macro
 
diff --git a/docs/ARCHITECTURE.md b/docs/ARCHITECTURE.md
index 2b76eeea..6b289a7c 100644
--- a/docs/ARCHITECTURE.md
+++ b/docs/ARCHITECTURE.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
 
 # ECHIDNA Architecture
diff --git a/docs/ASPECT_QUICK_START.md b/docs/ASPECT_QUICK_START.md
index 46886616..79170fe7 100644
--- a/docs/ASPECT_QUICK_START.md
+++ b/docs/ASPECT_QUICK_START.md
@@ -161,4 +161,4 @@ cargo test --lib aspect
 
 ## License
 
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
diff --git a/docs/ASPECT_TAGGING.md b/docs/ASPECT_TAGGING.md
index 0d802134..a6a99b95 100644
--- a/docs/ASPECT_TAGGING.md
+++ b/docs/ASPECT_TAGGING.md
@@ -351,4 +351,4 @@ cargo run --example aspect_tagging_demo
 ## License
 
 SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
diff --git a/docs/CORPUS-ADAPTERS.md b/docs/CORPUS-ADAPTERS.md
index 44311c64..594ac534 100644
--- a/docs/CORPUS-ADAPTERS.md
+++ b/docs/CORPUS-ADAPTERS.md
@@ -1,6 +1,6 @@
 <!--
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 -->
 
 # Corpus Adapters — Index
diff --git a/docs/CORPUS.md b/docs/CORPUS.md
index 7bde3a7f..66d89a6a 100644
--- a/docs/CORPUS.md
+++ b/docs/CORPUS.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 
 # Echidna Corpus — N-dimensional, octad-shaped, cross-prover
 
diff --git a/docs/ENV-VARS.md b/docs/ENV-VARS.md
index b620e9d6..94be7b66 100644
--- a/docs/ENV-VARS.md
+++ b/docs/ENV-VARS.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
 
 # ECHIDNA Environment Variables
diff --git a/docs/HP-BACKEND-ONBOARDING.md b/docs/HP-BACKEND-ONBOARDING.md
index b4f9aa29..398df125 100644
--- a/docs/HP-BACKEND-ONBOARDING.md
+++ b/docs/HP-BACKEND-ONBOARDING.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 
@@ -112,7 +112,7 @@ parametric `TypeInfo` so the unified verifier knows what to check.
 `tests/fixtures/hp/foo_trivial.tll`:
 
 ```
-# SPDX-License-Identifier: MPL-2.0
+# SPDX-License-Identifier: CC-BY-SA-4.0
 #discipline: foo
 
 theorem foo_identity : ... .
diff --git a/docs/LEARNING-ARCHITECTURE.adoc b/docs/LEARNING-ARCHITECTURE.adoc
index b9d87e05..80415270 100644
--- a/docs/LEARNING-ARCHITECTURE.adoc
+++ b/docs/LEARNING-ARCHITECTURE.adoc
@@ -4,7 +4,7 @@
 :revdate: 2026-04-17
 :toc: preamble
 
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 
 == Problem
 
diff --git a/docs/PROVER_COUNT.md b/docs/PROVER_COUNT.md
index f447a8d7..c9ba6347 100644
--- a/docs/PROVER_COUNT.md
+++ b/docs/PROVER_COUNT.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
 
 # Canonical Prover Count and Tier Table
diff --git a/docs/ROADMAP.md b/docs/ROADMAP.md
index cbe99e6f..42f10c88 100644
--- a/docs/ROADMAP.md
+++ b/docs/ROADMAP.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
 
 # ECHIDNA Roadmap
diff --git a/docs/SSG_ROADMAP.adoc b/docs/SSG_ROADMAP.adoc
index 57fca2cc..29443b41 100644
--- a/docs/SSG_ROADMAP.adoc
+++ b/docs/SSG_ROADMAP.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // SPDX-FileCopyrightText: 2024-2025 ECHIDNA Project Contributors
 
 = SSG Integration Roadmap
diff --git a/docs/SUPPORTED_PROVERS.md b/docs/SUPPORTED_PROVERS.md
index fe3b9de7..4a161bf7 100644
--- a/docs/SUPPORTED_PROVERS.md
+++ b/docs/SUPPORTED_PROVERS.md
@@ -1,6 +1,6 @@
 <!--
 SPDX-FileCopyrightText: 2026 ECHIDNA Project Team
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 -->
 
 # Supported Provers
diff --git a/docs/architecture/CHAPEL-SATURATION-HOOKS.md b/docs/architecture/CHAPEL-SATURATION-HOOKS.md
index 7c50fe99..5fbce037 100644
--- a/docs/architecture/CHAPEL-SATURATION-HOOKS.md
+++ b/docs/architecture/CHAPEL-SATURATION-HOOKS.md
@@ -1,6 +1,6 @@
 <!--
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 -->
 
 # Chapel ↔ Saturation Campaign Integration Hooks
diff --git a/docs/architecture/CROSS-REPO-PROOF-DAG.md b/docs/architecture/CROSS-REPO-PROOF-DAG.md
index 494f1da8..308fa3f8 100644
--- a/docs/architecture/CROSS-REPO-PROOF-DAG.md
+++ b/docs/architecture/CROSS-REPO-PROOF-DAG.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 
diff --git a/docs/architecture/JULIA-SATURATION-HOOKS.md b/docs/architecture/JULIA-SATURATION-HOOKS.md
index c9ba13b0..5714195f 100644
--- a/docs/architecture/JULIA-SATURATION-HOOKS.md
+++ b/docs/architecture/JULIA-SATURATION-HOOKS.md
@@ -1,6 +1,6 @@
 <!--
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 -->
 
 # Julia Saturation Hooks — Rust corpus adapters → Julia GNN pipeline
diff --git a/docs/architecture/TYPE-DISCIPLINE-EMBEDDING.md b/docs/architecture/TYPE-DISCIPLINE-EMBEDDING.md
index 7a8ad1ab..29b884cc 100644
--- a/docs/architecture/TYPE-DISCIPLINE-EMBEDDING.md
+++ b/docs/architecture/TYPE-DISCIPLINE-EMBEDDING.md
@@ -1,6 +1,6 @@
 <!--
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 -->
 
 # Type-Discipline Embedding — 39-Discipline Corpus Annotation
diff --git a/docs/architecture/VERISIM-ER-SCHEMA.md b/docs/architecture/VERISIM-ER-SCHEMA.md
index 02b6c97b..af11c159 100644
--- a/docs/architecture/VERISIM-ER-SCHEMA.md
+++ b/docs/architecture/VERISIM-ER-SCHEMA.md
@@ -1,6 +1,6 @@
 <!--
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 -->
 
 # VeriSim ↔ ECHIDNA Entity-Relationship Schema
diff --git a/docs/bench/2026-05-30-chapel-mrr-baseline.md b/docs/bench/2026-05-30-chapel-mrr-baseline.md
index acf5045c..34c5352a 100644
--- a/docs/bench/2026-05-30-chapel-mrr-baseline.md
+++ b/docs/bench/2026-05-30-chapel-mrr-baseline.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
 
 # Chapel speedup baseline — 2026-05-30
diff --git a/docs/decisions/2026-04-28-corpus-and-design-search.md b/docs/decisions/2026-04-28-corpus-and-design-search.md
index a72598be..a4685cba 100644
--- a/docs/decisions/2026-04-28-corpus-and-design-search.md
+++ b/docs/decisions/2026-04-28-corpus-and-design-search.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 
 # 2026-04-28 — Corpus, design-search, swarm, and the N-dim VeriSim plan
 
diff --git a/docs/decisions/2026-05-19-ci-baseline-triage.md b/docs/decisions/2026-05-19-ci-baseline-triage.md
index 252fcd30..cb643cfb 100644
--- a/docs/decisions/2026-05-19-ci-baseline-triage.md
+++ b/docs/decisions/2026-05-19-ci-baseline-triage.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 
 # 2026-05-19 — CI baseline triage: real defects vs baseline-rot vs infra jam
 
diff --git a/docs/decisions/2026-05-30-chapel-l23-cancel-token.md b/docs/decisions/2026-05-30-chapel-l23-cancel-token.md
index bd6141e8..ecfc6e84 100644
--- a/docs/decisions/2026-05-30-chapel-l23-cancel-token.md
+++ b/docs/decisions/2026-05-30-chapel-l23-cancel-token.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 
 # 2026-05-30 — L2.3 cancel-token preemption for speculative search
 
diff --git a/docs/decisions/2026-05-30-chapel-pic-rebuild.md b/docs/decisions/2026-05-30-chapel-pic-rebuild.md
index 16acde34..e0923afb 100644
--- a/docs/decisions/2026-05-30-chapel-pic-rebuild.md
+++ b/docs/decisions/2026-05-30-chapel-pic-rebuild.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 
 # 2026-05-30 — Chapel PIC rebuild from source for `--library --dynamic`
 
diff --git a/docs/decisions/2026-05-30-chapel-rehabilitation.md b/docs/decisions/2026-05-30-chapel-rehabilitation.md
index 5993d8ff..9649efc9 100644
--- a/docs/decisions/2026-05-30-chapel-rehabilitation.md
+++ b/docs/decisions/2026-05-30-chapel-rehabilitation.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 
 # 2026-05-30 — Chapel metalayer rehabilitation: rewrite, not park
 
diff --git a/docs/decisions/2026-05-31-chapel-prover-spawn-hooks.md b/docs/decisions/2026-05-31-chapel-prover-spawn-hooks.md
index c22cd2e3..012c5473 100644
--- a/docs/decisions/2026-05-31-chapel-prover-spawn-hooks.md
+++ b/docs/decisions/2026-05-31-chapel-prover-spawn-hooks.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 
 # 2026-05-31 — Per-prover spawn hooks: cwd + filenameOverride
 
diff --git a/docs/decisions/2026-06-01-saturation-campaign.md b/docs/decisions/2026-06-01-saturation-campaign.md
index 1f812a0f..8023effe 100644
--- a/docs/decisions/2026-06-01-saturation-campaign.md
+++ b/docs/decisions/2026-06-01-saturation-campaign.md
@@ -1,6 +1,6 @@
 <!--
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 -->
 
 # ADR 2026-06-01 — Prover / Corpus / Vocab / Synonyms / Arbitration Saturation Campaign
diff --git a/docs/deployment/DEPLOYMENT_GUIDE.md b/docs/deployment/DEPLOYMENT_GUIDE.md
index 45e3ac6a..32533c25 100644
--- a/docs/deployment/DEPLOYMENT_GUIDE.md
+++ b/docs/deployment/DEPLOYMENT_GUIDE.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2025 ECHIDNA Project Contributors
 -->
 
diff --git a/docs/design/ECHIDNA-VERISIM-TRIANGULATION-2026-04-17.adoc b/docs/design/ECHIDNA-VERISIM-TRIANGULATION-2026-04-17.adoc
index 7f0fc9b1..0cda21bf 100644
--- a/docs/design/ECHIDNA-VERISIM-TRIANGULATION-2026-04-17.adoc
+++ b/docs/design/ECHIDNA-VERISIM-TRIANGULATION-2026-04-17.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell
 :toc: left
 :toclevels: 3
diff --git a/docs/design/SPARK_ADOPTION_PLAN.md b/docs/design/SPARK_ADOPTION_PLAN.md
index a86b9af3..8636f786 100644
--- a/docs/design/SPARK_ADOPTION_PLAN.md
+++ b/docs/design/SPARK_ADOPTION_PLAN.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 # SPARK Adoption Plan — Echidna Trust Pipeline
 
 **Status:** Proposal
diff --git a/docs/governance/JUST_AND_MUST_FRAMEWORK.md b/docs/governance/JUST_AND_MUST_FRAMEWORK.md
index 6acd7d63..370d997e 100644
--- a/docs/governance/JUST_AND_MUST_FRAMEWORK.md
+++ b/docs/governance/JUST_AND_MUST_FRAMEWORK.md
@@ -35,7 +35,7 @@ Together, these create a **stable, predictable development experience**.
 **Justfile** (complete, comprehensive):
 
 ```justfile
-# SPDX-License-Identifier: MIT OR Palimpsest-0.6
+# SPDX-License-Identifier: CC-BY-SA-4.0 OR Palimpsest-0.6
 # ECHIDNA Standard Build System
 
 # List all available commands
@@ -370,7 +370,7 @@ dev-cycle:
 
 ```bash
 #!/usr/bin/env bash
-# SPDX-License-Identifier: MIT OR Palimpsest-0.6
+# SPDX-License-Identifier: CC-BY-SA-4.0 OR Palimpsest-0.6
 # Must Validation System
 #
 # Exit codes:
@@ -570,7 +570,7 @@ jobs:
 
 ```bash
 #!/usr/bin/env bash
-# SPDX-License-Identifier: MIT OR Palimpsest-0.6
+# SPDX-License-Identifier: CC-BY-SA-4.0 OR Palimpsest-0.6
 # Pre-commit hook: Run quick validation
 
 set -e
diff --git a/docs/handover/B7-AUDIT-CORRECTION.md b/docs/handover/B7-AUDIT-CORRECTION.md
index b9aa71e7..a103010c 100644
--- a/docs/handover/B7-AUDIT-CORRECTION.md
+++ b/docs/handover/B7-AUDIT-CORRECTION.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 
diff --git a/docs/handover/HANDOVER-INDEX.md b/docs/handover/HANDOVER-INDEX.md
index 4077e8ff..19581109 100644
--- a/docs/handover/HANDOVER-INDEX.md
+++ b/docs/handover/HANDOVER-INDEX.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
 
 # Handover Index
diff --git a/docs/handover/L3-GATE-PATH.adoc b/docs/handover/L3-GATE-PATH.adoc
index 886e3f3f..85d10009 100644
--- a/docs/handover/L3-GATE-PATH.adoc
+++ b/docs/handover/L3-GATE-PATH.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 :toc: left
 :toclevels: 2
diff --git a/docs/handover/PHASE-3-PROMPT.md b/docs/handover/PHASE-3-PROMPT.md
index 321dadc6..2d6c9364 100644
--- a/docs/handover/PHASE-3-PROMPT.md
+++ b/docs/handover/PHASE-3-PROMPT.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 # Echidna Phase 3 — Real-Algebraic + Modal/Hybrid Backends — Opus Handoff Prompt
 
 **Context**: Phase 3 of the ECHIDNA expansion is the
diff --git a/docs/handover/PROVER-CORPUS-SATURATION-LANE.md b/docs/handover/PROVER-CORPUS-SATURATION-LANE.md
index d9909b1f..937eca74 100644
--- a/docs/handover/PROVER-CORPUS-SATURATION-LANE.md
+++ b/docs/handover/PROVER-CORPUS-SATURATION-LANE.md
@@ -1,6 +1,6 @@
 <!--
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 -->
 
 # Saturation Lane — Prover/Corpus/Vocab/Synonyms/Arbitration
diff --git a/docs/handover/README.md b/docs/handover/README.md
index 3df0787e..4bcedc8e 100644
--- a/docs/handover/README.md
+++ b/docs/handover/README.md
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 
 # Echidna Handover Prompts
 
diff --git a/docs/handover/S4-LOOP-CLOSURE-RUNBOOK.md b/docs/handover/S4-LOOP-CLOSURE-RUNBOOK.md
index 8d8aa7ec..b10adb76 100644
--- a/docs/handover/S4-LOOP-CLOSURE-RUNBOOK.md
+++ b/docs/handover/S4-LOOP-CLOSURE-RUNBOOK.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
 
 # S4 Loop-Closure Runbook
diff --git a/docs/handover/SESSION-HANDOFF-2026-06-15.md b/docs/handover/SESSION-HANDOFF-2026-06-15.md
index 481c2e67..672aa23d 100644
--- a/docs/handover/SESSION-HANDOFF-2026-06-15.md
+++ b/docs/handover/SESSION-HANDOFF-2026-06-15.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
 # Session handoff — 2026-06-15
 
diff --git a/docs/handover/SUGGEST-CLI-PROMPT.md b/docs/handover/SUGGEST-CLI-PROMPT.md
index cfe15f08..47de8d2f 100644
--- a/docs/handover/SUGGEST-CLI-PROMPT.md
+++ b/docs/handover/SUGGEST-CLI-PROMPT.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 # Echidna `suggest` — CLI Verb + Variant Tester — Sonnet Handoff Prompt
 
 **Context**: Echidna's `prove` CLI is a one-shot dispatcher. When a proof
diff --git a/docs/handover/THEOREM-METADATA-MIGRATION.md b/docs/handover/THEOREM-METADATA-MIGRATION.md
index b3046d27..a0c66f6a 100644
--- a/docs/handover/THEOREM-METADATA-MIGRATION.md
+++ b/docs/handover/THEOREM-METADATA-MIGRATION.md
@@ -1,5 +1,5 @@
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 
 # Theorem Metadata Migration (deferred)
 
diff --git a/docs/handover/llm-warmup-dev.md b/docs/handover/llm-warmup-dev.md
index 7bc21815..f7a8d45c 100644
--- a/docs/handover/llm-warmup-dev.md
+++ b/docs/handover/llm-warmup-dev.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 <!-- LLM warmup context — DEVELOPER level (<400 lines) -->
 <!-- Feed this to an LLM before doing development work on ECHIDNA -->
 
diff --git a/docs/handover/llm-warmup-user.md b/docs/handover/llm-warmup-user.md
index 840d9a03..efd0e92f 100644
--- a/docs/handover/llm-warmup-user.md
+++ b/docs/handover/llm-warmup-user.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 <!-- LLM warmup context — USER level (<200 lines) -->
 <!-- Feed this to an LLM before asking questions about ECHIDNA -->
 
diff --git a/docs/maintenance/MAINTENANCE-CHECKLIST.adoc b/docs/maintenance/MAINTENANCE-CHECKLIST.adoc
index 0aa3e1b6..09a43d24 100644
--- a/docs/maintenance/MAINTENANCE-CHECKLIST.adoc
+++ b/docs/maintenance/MAINTENANCE-CHECKLIST.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 = ECHIDNA Maintenance Checklist
 :author: Jonathan D.A. Jewell
 :toc:
diff --git a/docs/practice/SOFTWARE-DEVELOPMENT-APPROACH.adoc b/docs/practice/SOFTWARE-DEVELOPMENT-APPROACH.adoc
index 854c368f..42439fa0 100644
--- a/docs/practice/SOFTWARE-DEVELOPMENT-APPROACH.adoc
+++ b/docs/practice/SOFTWARE-DEVELOPMENT-APPROACH.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 = ECHIDNA Software Development Approach
 :author: Jonathan D.A. Jewell
 :toc:
diff --git a/docs/reports/audit/2026-03-31-echidna-audit.adoc b/docs/reports/audit/2026-03-31-echidna-audit.adoc
index cebe8caf..c3b3b2a0 100644
--- a/docs/reports/audit/2026-03-31-echidna-audit.adoc
+++ b/docs/reports/audit/2026-03-31-echidna-audit.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 = ECHIDNA Audit 2026-03-31
 :revdate: 2026-03-31
 
diff --git a/docs/tech-debt-2026-05-26.md b/docs/tech-debt-2026-05-26.md
index 12ead3fc..5f497196 100644
--- a/docs/tech-debt-2026-05-26.md
+++ b/docs/tech-debt-2026-05-26.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell (hyperpolymath)
 -->
 
diff --git a/docs/training-runs/2026-06-02.md b/docs/training-runs/2026-06-02.md
index e593c4d3..a14aabf5 100644
--- a/docs/training-runs/2026-06-02.md
+++ b/docs/training-runs/2026-06-02.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 
diff --git a/docs/wiki/Architecture.md b/docs/wiki/Architecture.md
index f68f5075..46a87f40 100644
--- a/docs/wiki/Architecture.md
+++ b/docs/wiki/Architecture.md
@@ -1,5 +1,5 @@
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 # Architecture
 
 The canonical, current architecture overview lives in the repo at
diff --git a/docs/wiki/FAQ.md b/docs/wiki/FAQ.md
index 300fb4fe..2ae4a6f5 100644
--- a/docs/wiki/FAQ.md
+++ b/docs/wiki/FAQ.md
@@ -1,5 +1,5 @@
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 # FAQ
 
 ## How many provers are supported?
diff --git a/docs/wiki/Getting-Started.md b/docs/wiki/Getting-Started.md
index ea1dd1dc..431ab98c 100644
--- a/docs/wiki/Getting-Started.md
+++ b/docs/wiki/Getting-Started.md
@@ -1,5 +1,5 @@
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 # Getting Started
 
 The canonical quickstart docs live in the repo:
diff --git a/docs/wiki/Guides.md b/docs/wiki/Guides.md
index 1f22df64..143ca1e0 100644
--- a/docs/wiki/Guides.md
+++ b/docs/wiki/Guides.md
@@ -1,5 +1,5 @@
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 # Guides
 
 ## Adding a new prover backend
diff --git a/docs/wiki/Home.md b/docs/wiki/Home.md
index 0e629f74..aeb4899e 100644
--- a/docs/wiki/Home.md
+++ b/docs/wiki/Home.md
@@ -1,5 +1,5 @@
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 # ECHIDNA Wiki
 
 **ECHIDNA** — Extensible Cognitive Hybrid Intelligence for Deductive Neural Assistance — is a trust-hardened neurosymbolic theorem-proving platform supporting **128 prover backends** (12 core, exposed by default API; see [`docs/PROVER_COUNT.md`](https://github.com/hyperpolymath/echidna/blob/main/docs/PROVER_COUNT.md) for the tier breakdown).
diff --git a/docs/wiki/Troubleshooting.md b/docs/wiki/Troubleshooting.md
index 768a8b8a..58c93454 100644
--- a/docs/wiki/Troubleshooting.md
+++ b/docs/wiki/Troubleshooting.md
@@ -1,5 +1,5 @@
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 # Troubleshooting
 
 ## Build fails with `openssl` errors
diff --git a/echidna-playground/.github/CODEOWNERS b/echidna-playground/.github/CODEOWNERS
index a2f47751..a4e8fd3b 100644
--- a/echidna-playground/.github/CODEOWNERS
+++ b/echidna-playground/.github/CODEOWNERS
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 # CODEOWNERS - Defines code ownership for mandatory review requirements
 #
 # These owners will be requested for review when someone opens a pull request
diff --git a/echidna-playground/CONTRIBUTING.adoc b/echidna-playground/CONTRIBUTING.adoc
index 1f34e602..eb045d61 100644
--- a/echidna-playground/CONTRIBUTING.adoc
+++ b/echidna-playground/CONTRIBUTING.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 = Contributing Guide
 
 == Getting Started
diff --git a/echidna-playground/MAINTAINERS.adoc b/echidna-playground/MAINTAINERS.adoc
index a1c65443..48d97817 100644
--- a/echidna-playground/MAINTAINERS.adoc
+++ b/echidna-playground/MAINTAINERS.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 = Maintainers
 :toc: preamble
 
diff --git a/echidna-playground/README.adoc b/echidna-playground/README.adoc
index 5a129498..7f94b4ff 100644
--- a/echidna-playground/README.adoc
+++ b/echidna-playground/README.adoc
@@ -1,5 +1,5 @@
 = Coq-Jr: Web-Native Interactive Theorem Proving
-image:https://img.shields.io/badge/License-PMPL--1.0-blue.svg[License: PMPL-1.0,link="https://github.com/hyperpolymath/palimpsest-license"]
+image:https://img.shields.io/badge/License-MPL--2.0-blue.svg[License: PMPL-1.0,link="https://github.com/hyperpolymath/palimpsest-license"]
 
 
 
diff --git a/echidna-playground/RSR_OUTLINE.adoc b/echidna-playground/RSR_OUTLINE.adoc
index 46adb909..d73bbf60 100644
--- a/echidna-playground/RSR_OUTLINE.adoc
+++ b/echidna-playground/RSR_OUTLINE.adoc
@@ -209,7 +209,7 @@ This template is part of:
 
 == License
 
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 
 == Links
 
diff --git a/examples/simple_proof.v b/examples/simple_proof.v
index 898425d5..3f0c8109 100644
--- a/examples/simple_proof.v
+++ b/examples/simple_proof.v
@@ -1,4 +1,4 @@
-(* SPDX-License-Identifier: MIT OR Palimpsest-0.6 *)
+(* SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6 *)
 (* Simple Coq proof demonstrating ECHIDNA capabilities *)
 
 (** * Simple Arithmetic Proof
diff --git a/hooks/README.md b/hooks/README.md
index e3af2e68..46069db5 100644
--- a/hooks/README.md
+++ b/hooks/README.md
@@ -1,4 +1,4 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 <!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk> -->
 # Git hooks
 
diff --git a/meta-checker/README.adoc b/meta-checker/README.adoc
index 5d6b3ef0..8b7ce9ac 100644
--- a/meta-checker/README.adoc
+++ b/meta-checker/README.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath)
 
 = ECHIDNA Meta-Checker
diff --git a/metrics/README.md b/metrics/README.md
index e47de728..cbcccdb1 100644
--- a/metrics/README.md
+++ b/metrics/README.md
@@ -1,6 +1,6 @@
 # ECHIDNA metrics suite
 
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!-- SPDX-License-Identifier: CC-BY-SA-4.0 -->
 
 Measures the cross-prover corpus along eight axes that together bound
 the vocabulary horizon and triangulation capacity. Every metric
diff --git a/proofs/acl2/associativity.lisp b/proofs/acl2/associativity.lisp
index 87e4a8d2..4b60d509 100644
--- a/proofs/acl2/associativity.lisp
+++ b/proofs/acl2/associativity.lisp
@@ -1,5 +1,5 @@
 ; SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-; SPDX-License-Identifier: MIT OR Palimpsest-0.6
+; SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6
 
 ;; Associativity of addition
 ;; Demonstrates ACL2's automated proof with induction
diff --git a/proofs/acl2/binary_trees.lisp b/proofs/acl2/binary_trees.lisp
index b19b9892..30457274 100644
--- a/proofs/acl2/binary_trees.lisp
+++ b/proofs/acl2/binary_trees.lisp
@@ -1,5 +1,5 @@
 ; SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-; SPDX-License-Identifier: MIT OR Palimpsest-0.6
+; SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6
 
 ;; Binary tree operations
 ;; Demonstrates data structure reasoning
diff --git a/proofs/acl2/factorial.lisp b/proofs/acl2/factorial.lisp
index 9018ff6a..4a1faa0c 100644
--- a/proofs/acl2/factorial.lisp
+++ b/proofs/acl2/factorial.lisp
@@ -1,5 +1,5 @@
 ; SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-; SPDX-License-Identifier: MIT OR Palimpsest-0.6
+; SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6
 
 ;; Factorial function with guards
 ;; Demonstrates ACL2's guard verification and executable specifications
diff --git a/proofs/acl2/list_append.lisp b/proofs/acl2/list_append.lisp
index e2c0f142..b03594b3 100644
--- a/proofs/acl2/list_append.lisp
+++ b/proofs/acl2/list_append.lisp
@@ -1,5 +1,5 @@
 ; SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-; SPDX-License-Identifier: MIT OR Palimpsest-0.6
+; SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6
 
 ;; List append properties
 ;; Demonstrates recursive definitions and list reasoning
diff --git a/proofs/acl2/sorting.lisp b/proofs/acl2/sorting.lisp
index a0746f33..0dd4d53b 100644
--- a/proofs/acl2/sorting.lisp
+++ b/proofs/acl2/sorting.lisp
@@ -1,5 +1,5 @@
 ; SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-; SPDX-License-Identifier: MIT OR Palimpsest-0.6
+; SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6
 
 ;; Insertion sort correctness
 ;; Demonstrates algorithm verification
diff --git a/proofs/agda/Basic.agda b/proofs/agda/Basic.agda
index 5441bd74..17574fbd 100644
--- a/proofs/agda/Basic.agda
+++ b/proofs/agda/Basic.agda
@@ -1,5 +1,5 @@
 -- SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
--- SPDX-License-Identifier: MIT AND Palimpsest-0.6
+-- SPDX-License-Identifier: MPL-2.0 AND Palimpsest-0.6
 --
 -- Basic.agda - Simple proofs demonstrating fundamental logical principles
 --
diff --git a/proofs/hol4/arithmetic.sml b/proofs/hol4/arithmetic.sml
index a9f28a67..d5badb14 100644
--- a/proofs/hol4/arithmetic.sml
+++ b/proofs/hol4/arithmetic.sml
@@ -1,5 +1,5 @@
 (* SPDX-FileCopyrightText: 2025 ECHIDNA Project Team *)
-(* SPDX-License-Identifier: MIT OR Palimpsest-0.6 *)
+(* SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6 *)
 
 (* Arithmetic properties in HOL4 *)
 (* Demonstrates decision procedures and automation *)
diff --git a/proofs/hol4/binary_tree.sml b/proofs/hol4/binary_tree.sml
index 91294e04..4de270de 100644
--- a/proofs/hol4/binary_tree.sml
+++ b/proofs/hol4/binary_tree.sml
@@ -1,5 +1,5 @@
 (* SPDX-FileCopyrightText: 2025 ECHIDNA Project Team *)
-(* SPDX-License-Identifier: MIT OR Palimpsest-0.6 *)
+(* SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6 *)
 
 (* Binary tree operations in HOL4 *)
 (* Demonstrates datatype definitions and structural induction *)
diff --git a/proofs/hol4/list_append.sml b/proofs/hol4/list_append.sml
index ac4c3b85..4f877161 100644
--- a/proofs/hol4/list_append.sml
+++ b/proofs/hol4/list_append.sml
@@ -1,5 +1,5 @@
 (* SPDX-FileCopyrightText: 2025 ECHIDNA Project Team *)
-(* SPDX-License-Identifier: MIT OR Palimpsest-0.6 *)
+(* SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6 *)
 
 (* List append properties in HOL4 *)
 (* Demonstrates inductive proofs over lists *)
diff --git a/proofs/hol4/set_theory.sml b/proofs/hol4/set_theory.sml
index aeb4d939..2c8eede6 100644
--- a/proofs/hol4/set_theory.sml
+++ b/proofs/hol4/set_theory.sml
@@ -1,5 +1,5 @@
 (* SPDX-FileCopyrightText: 2025 ECHIDNA Project Team *)
-(* SPDX-License-Identifier: MIT OR Palimpsest-0.6 *)
+(* SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6 *)
 
 (* Set theory properties in HOL4 *)
 (* Demonstrates higher-order reasoning *)
diff --git a/proofs/hol4/sorting.sml b/proofs/hol4/sorting.sml
index 188b5100..a81ce2fd 100644
--- a/proofs/hol4/sorting.sml
+++ b/proofs/hol4/sorting.sml
@@ -1,5 +1,5 @@
 (* SPDX-FileCopyrightText: 2025 ECHIDNA Project Team *)
-(* SPDX-License-Identifier: MIT OR Palimpsest-0.6 *)
+(* SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6 *)
 
 (* Sorting algorithm verification in HOL4 *)
 (* Demonstrates algorithm correctness proofs *)
diff --git a/proofs/lean/Basic.lean b/proofs/lean/Basic.lean
index 1ea009fb..c9337b75 100644
--- a/proofs/lean/Basic.lean
+++ b/proofs/lean/Basic.lean
@@ -1,6 +1,6 @@
 /-
 SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-SPDX-License-Identifier: MIT
+SPDX-License-Identifier: MPL-2.0
 
 Basic Lean 4 Proofs - Foundation Level
 
diff --git a/proofs/lean/List.lean b/proofs/lean/List.lean
index 279ae54d..e286d96e 100644
--- a/proofs/lean/List.lean
+++ b/proofs/lean/List.lean
@@ -1,6 +1,6 @@
 /-
 SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-SPDX-License-Identifier: MIT
+SPDX-License-Identifier: MPL-2.0
 
 List Proofs in Lean 4
 
diff --git a/proofs/lean/Propositional.lean b/proofs/lean/Propositional.lean
index 14079a33..a6d85fff 100644
--- a/proofs/lean/Propositional.lean
+++ b/proofs/lean/Propositional.lean
@@ -1,6 +1,6 @@
 /-
 SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-SPDX-License-Identifier: MIT
+SPDX-License-Identifier: MPL-2.0
 
 Propositional Logic Proofs in Lean 4
 
diff --git a/proofs/lean/README.md b/proofs/lean/README.md
index 71c2d1f9..aba26392 100644
--- a/proofs/lean/README.md
+++ b/proofs/lean/README.md
@@ -1,6 +1,6 @@
 <!--
 SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 -->
 
 # ECHIDNA Lean 4 Proof Examples
diff --git a/proofs/lean/THEOREMS.md b/proofs/lean/THEOREMS.md
index 54a7d276..1bbd52e2 100644
--- a/proofs/lean/THEOREMS.md
+++ b/proofs/lean/THEOREMS.md
@@ -1,6 +1,6 @@
 <!--
 SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 -->
 
 # ECHIDNA Lean 4 Theorems Reference
diff --git a/proofs/pvs/arithmetic.pvs b/proofs/pvs/arithmetic.pvs
index b94000f5..339885c9 100644
--- a/proofs/pvs/arithmetic.pvs
+++ b/proofs/pvs/arithmetic.pvs
@@ -1,5 +1,5 @@
 % SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-% SPDX-License-Identifier: MIT OR Palimpsest-0.6
+% SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6
 
 % Arithmetic properties
 % Demonstrates PVS's powerful decision procedures
diff --git a/proofs/pvs/binary_search.pvs b/proofs/pvs/binary_search.pvs
index fd7e804e..0cfdfca1 100644
--- a/proofs/pvs/binary_search.pvs
+++ b/proofs/pvs/binary_search.pvs
@@ -1,5 +1,5 @@
 % SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-% SPDX-License-Identifier: MIT OR Palimpsest-0.6
+% SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6
 
 % Binary search on sorted arrays
 % Demonstrates PVS's specification and verification capabilities
diff --git a/proofs/pvs/list_theory.pvs b/proofs/pvs/list_theory.pvs
index 57edefa9..9bc21488 100644
--- a/proofs/pvs/list_theory.pvs
+++ b/proofs/pvs/list_theory.pvs
@@ -1,5 +1,5 @@
 % SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-% SPDX-License-Identifier: MIT OR Palimpsest-0.6
+% SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6
 
 % List theory with append and length
 % Demonstrates PVS's dependent types and TCCs
diff --git a/proofs/pvs/set_theory.pvs b/proofs/pvs/set_theory.pvs
index e3a10674..5bffbebf 100644
--- a/proofs/pvs/set_theory.pvs
+++ b/proofs/pvs/set_theory.pvs
@@ -1,5 +1,5 @@
 % SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-% SPDX-License-Identifier: MIT OR Palimpsest-0.6
+% SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6
 
 % Set operations and properties
 % Demonstrates higher-order reasoning in PVS
diff --git a/proofs/pvs/sorting.pvs b/proofs/pvs/sorting.pvs
index 3c0a307d..f7b58488 100644
--- a/proofs/pvs/sorting.pvs
+++ b/proofs/pvs/sorting.pvs
@@ -1,5 +1,5 @@
 % SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-% SPDX-License-Identifier: MIT OR Palimpsest-0.6
+% SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6
 
 % Insertion sort specification and verification
 % Demonstrates algorithm correctness in PVS
diff --git a/reports/audits/audit-ffi-boundary.md b/reports/audits/audit-ffi-boundary.md
index e5d707b6..0bd637cf 100644
--- a/reports/audits/audit-ffi-boundary.md
+++ b/reports/audits/audit-ffi-boundary.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 -->
 
diff --git a/reports/audits/audit-pa021-axioms-2026-05-26.md b/reports/audits/audit-pa021-axioms-2026-05-26.md
index 745a64b4..d885e3f1 100644
--- a/reports/audits/audit-pa021-axioms-2026-05-26.md
+++ b/reports/audits/audit-pa021-axioms-2026-05-26.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 -->
 
diff --git a/rules/security_learning.lgt b/rules/security_learning.lgt
index 39ad9adc..02d00851 100644
--- a/rules/security_learning.lgt
+++ b/rules/security_learning.lgt
@@ -1,4 +1,4 @@
-%% SPDX-License-Identifier: MIT OR Palimpsest-0.6
+%% SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6
 %% ECHIDNA Security Rule Learning Module
 %% Learns security patterns from cicd-hyper-a audit data
 
diff --git a/schemas/VERSIONING.md b/schemas/VERSIONING.md
index c511c2b9..d5224ce8 100644
--- a/schemas/VERSIONING.md
+++ b/schemas/VERSIONING.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 
diff --git a/scripts/build-production.sh b/scripts/build-production.sh
index 49ca61d2..970c8266 100755
--- a/scripts/build-production.sh
+++ b/scripts/build-production.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# SPDX-License-Identifier: MIT OR Palimpsest-0.6
+# SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6
 # Production build script for ECHIDNA
 
 set -e
diff --git a/scripts/demo-proof.sh b/scripts/demo-proof.sh
index fa8f9095..cbc2cdab 100755
--- a/scripts/demo-proof.sh
+++ b/scripts/demo-proof.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# SPDX-License-Identifier: MIT OR Palimpsest-0.6
+# SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6
 # ECHIDNA Interactive Demo - Proof of Commutativity
 
 set -e
diff --git a/scripts/expand_training_data.sh b/scripts/expand_training_data.sh
index 2ed91522..ae70788f 100755
--- a/scripts/expand_training_data.sh
+++ b/scripts/expand_training_data.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# SPDX-License-Identifier: MIT OR Palimpsest-0.6
+# SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6
 # Quick training data expansion script for ECHIDNA
 
 set -e
diff --git a/scripts/test-integration.sh b/scripts/test-integration.sh
index 451dee76..0d9dc180 100755
--- a/scripts/test-integration.sh
+++ b/scripts/test-integration.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 # SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-# SPDX-License-Identifier: MIT OR Palimpsest-0.6
+# SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6
 
 # Integration test runner for Rust↔Julia communication
 # Starts Julia test server, runs Rust integration tests, then stops server
diff --git a/spark/README.adoc b/spark/README.adoc
index d7416074..25dfa36e 100644
--- a/spark/README.adoc
+++ b/spark/README.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 = SPARK Companions
 :toc:
 :toc-placement: preamble
diff --git a/src/julia/README.md b/src/julia/README.md
index 7c08b832..5bc753b1 100644
--- a/src/julia/README.md
+++ b/src/julia/README.md
@@ -1,5 +1,5 @@
 # SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-# SPDX-License-Identifier: MPL-2.0
+# SPDX-License-Identifier: CC-BY-SA-4.0
 
 # ECHIDNA Julia ML Components
 
@@ -496,7 +496,7 @@ See LICENSE files for details.
 
 <!--
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Saturation campaign 2026-06-01 addendum.
 -->
 
diff --git a/src/julia/retrain_from_verisim.jl b/src/julia/retrain_from_verisim.jl
index 9ee3c089..1e3903d3 100644
--- a/src/julia/retrain_from_verisim.jl
+++ b/src/julia/retrain_from_verisim.jl
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: EUPL-1.2
+# SPDX-License-Identifier: MPL-2.0
 # SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 #
 # retrain_from_verisim.jl — Retrain ECHIDNA's logistic-regression premise
diff --git a/src/julia/test_server.jl b/src/julia/test_server.jl
index be3949f4..4f160844 100644
--- a/src/julia/test_server.jl
+++ b/src/julia/test_server.jl
@@ -1,5 +1,5 @@
 # SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-# SPDX-License-Identifier: MIT AND Palimpsest-0.6
+# SPDX-License-Identifier: MPL-2.0 AND Palimpsest-0.6
 
 """
     test_server.jl
diff --git a/src/ui/tea/echidna_gui.affine b/src/ui/tea/echidna_gui.affine
index 71a4b65a..9334e355 100644
--- a/src/ui/tea/echidna_gui.affine
+++ b/src/ui/tea/echidna_gui.affine
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-or-later
+// SPDX-License-Identifier: MPL-2.0
 // Echidna GUI — AffineScript TEA Interface
 // Underpinned by Cadre Router (Affine Stack Implementation)
 //
diff --git a/src/ui/tea/echidna_tea.js b/src/ui/tea/echidna_tea.js
index f6fed2b7..73972847 100644
--- a/src/ui/tea/echidna_tea.js
+++ b/src/ui/tea/echidna_tea.js
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-or-later
+// SPDX-License-Identifier: MPL-2.0
 // Echidna GUI Bridge
 
 /**
diff --git a/src/zig/ffi/echidna_ffi.h b/src/zig/ffi/echidna_ffi.h
index bf75b2f5..500cafc9 100644
--- a/src/zig/ffi/echidna_ffi.h
+++ b/src/zig/ffi/echidna_ffi.h
@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: 2025 ECHIDNA Project Team
-// SPDX-License-Identifier: MIT OR Palimpsest-0.6
+// SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6
 
 /**
  * @file echidna_ffi.h
diff --git a/training_data/proof_states_v2.jsonl b/training_data/proof_states_v2.jsonl
index e6031ad2..393f83b4 100644
--- a/training_data/proof_states_v2.jsonl
+++ b/training_data/proof_states_v2.jsonl
@@ -1,6 +1,6 @@
 {"id":1,"prover":"PVS","goal":"fib(n: nat): RECURSIVE nat =","theorem":"n","file":"arithmetic.pvs"}
 {"id":2,"prover":"PVS","goal":"1: 1","theorem":"1","file":"arithmetic.pvs"}
-{"id":3,"prover":"PVS","goal":"% SPDX-License-Identifier: MIT OR Palimpsest-0.6","theorem":"Identifier","file":"list_theory.pvs"}
+{"id":3,"prover":"PVS","goal":"% SPDX-License-Identifier: MPL-2.0 OR Palimpsest-0.6","theorem":"Identifier","file":"list_theory.pvs"}
 {"id":4,"prover":"PVS","goal":"append(l1, l2: list): RECURSIVE list =","theorem":"l2","file":"list_theory.pvs"}
 {"id":5,"prover":"PVS","goal":"null: l2,","theorem":"null","file":"list_theory.pvs"}
 {"id":6,"prover":"PVS","goal":"length(l: list): RECURSIVE nat =","theorem":"l","file":"list_theory.pvs"}
@@ -285,7 +285,7 @@
 {"id":285,"prover":"Isabelle","goal":"Part of the ECHIDNA theorem proving platform","theorem":"proving","file":"List.thy"}
 {"id":286,"prover":"Isabelle","goal":"Part of the ECHIDNA theorem proving platform","theorem":"proving","file":"Nat.thy"}
 {"id":287,"prover":"Isabelle","goal":"Part of the ECHIDNA theorem proving platform","theorem":"proving","file":"Propositional.thy"}
-{"id":288,"prover":"Agda","goal":"-- SPDX-License-Identifier: MIT AND Palimpsest-0.6","theorem":"Identifier","file":"Basic.agda"}
+{"id":288,"prover":"Agda","goal":"-- SPDX-License-Identifier: MPL-2.0 AND Palimpsest-0.6","theorem":"Identifier","file":"Basic.agda"}
 {"id":289,"prover":"Agda","goal":"-- Type: A → A","theorem":"Type","file":"Basic.agda"}
 {"id":290,"prover":"Agda","goal":"suc  : ℕ → ℕ","theorem":"suc","file":"Basic.agda"}
 {"id":291,"prover":"Agda","goal":"-- Modus ponens: if we have A → B and we have A, then we can derive B","theorem":"ponens","file":"Basic.agda"}
@@ -293,7 +293,7 @@
 {"id":293,"prover":"Agda","goal":"-- Example: if ⊤ → ⊤ and we have ⊤, we get ⊤","theorem":"Example","file":"Basic.agda"}
 {"id":294,"prover":"Agda","goal":"trans : {A B C : Set} → (A → B) → (B → C) → (A → C)","theorem":"trans","file":"Basic.agda"}
 {"id":295,"prover":"Agda","goal":"SKK : {A : Set} → (x : A) → S const const x ≡ id x","theorem":"SKK","file":"Basic.agda"}
-{"id":296,"prover":"Agda","goal":"-- SPDX-License-Identifier: MIT AND Palimpsest-0.6","theorem":"Identifier","file":"List.agda"}
+{"id":296,"prover":"Agda","goal":"-- SPDX-License-Identifier: MPL-2.0 AND Palimpsest-0.6","theorem":"Identifier","file":"List.agda"}
 {"id":297,"prover":"Agda","goal":"filter : {A : Set} → (A → Bool) → List A → List A","theorem":"filter","file":"List.agda"}
 {"id":298,"prover":"Agda","goal":"reverse : {A : Set} → List A → List A","theorem":"reverse","file":"List.agda"}
 {"id":299,"prover":"Agda","goal":"reverse′ : {A : Set} → List A → List A","theorem":"A","file":"List.agda"}
@@ -313,7 +313,7 @@
 {"id":313,"prover":"Agda","goal":"length-foldr : {A : Set} → (xs : List A)","theorem":"foldr","file":"List.agda"}
 {"id":314,"prover":"Agda","goal":"there : {x : A} {xs : List A} → Any P xs → Any P (x ∷ xs)","theorem":"there","file":"List.agda"}
 {"id":315,"prover":"Agda","goal":"Any-++ : {A : Set} {P : A → Set} {xs ys : List A}","theorem":"A","file":"List.agda"}
-{"id":316,"prover":"Agda","goal":"-- SPDX-License-Identifier: MIT AND Palimpsest-0.6","theorem":"Identifier","file":"Nat.agda"}
+{"id":316,"prover":"Agda","goal":"-- SPDX-License-Identifier: MPL-2.0 AND Palimpsest-0.6","theorem":"Identifier","file":"Nat.agda"}
 {"id":317,"prover":"Agda","goal":"subst : {A : Set} {x y : A} → (P : A → Set) → x ≡ y → P x → P y","theorem":"subst","file":"Nat.agda"}
 {"id":318,"prover":"Agda","goal":"_+_ : ℕ → ℕ → ℕ","theorem":"_","file":"Nat.agda"}
 {"id":319,"prover":"Agda","goal":"+-zero : (n : ℕ) → n + zero ≡ n","theorem":"zero","file":"Nat.agda"}
@@ -324,7 +324,7 @@
 {"id":324,"prover":"Agda","goal":"s≤s : {m n : ℕ} → m ≤ n → suc m ≤ suc n","theorem":"s","file":"Nat.agda"}
 {"id":325,"prover":"Agda","goal":"min-comm : (m n : ℕ) → min m n ≡ min n m","theorem":"comm","file":"Nat.agda"}
 {"id":326,"prover":"Agda","goal":"even-or-odd : (n : ℕ) → Even n ⊎ Odd n","theorem":"odd","file":"Nat.agda"}
-{"id":327,"prover":"Agda","goal":"-- SPDX-License-Identifier: MIT AND Palimpsest-0.6","theorem":"Identifier","file":"Propositional.agda"}
+{"id":327,"prover":"Agda","goal":"-- SPDX-License-Identifier: MPL-2.0 AND Palimpsest-0.6","theorem":"Identifier","file":"Propositional.agda"}
 {"id":328,"prover":"Agda","goal":"tt : ⊤","theorem":"tt","file":"Propositional.agda"}
 {"id":329,"prover":"Agda","goal":"-- Ex falso quodlibet: from falsehood, anything follows","theorem":"quodlibet","file":"Propositional.agda"}
 {"id":330,"prover":"Agda","goal":"de-morgan₂-iff : {A B : Set} → ¬ (A ∨ B) ⇔ (¬ A ∧ ¬ B)","theorem":"iff","file":"Propositional.agda"}