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| 1 | +# 01 — Layered Architecture and Formal Model |
| 2 | + |
| 3 | +## Purpose |
| 4 | +Define the canonical L0–L9 stack and the formal semantics used by all downstream governance, infrastructure, and supervisory artifacts. |
| 5 | + |
| 6 | +## L0–L9 Architecture |
| 7 | +- **L0 Ontology/Epistemics**: claim types, evidentiary semantics, uncertainty operators. |
| 8 | +- **L1 Formal Semantics**: state-transition admissibility and proof obligations. |
| 9 | +- **L2 Cryptographic Fabric**: commitments, zk circuits, recursive aggregation. |
| 10 | +- **L3 Runtime Substrate**: deterministic telemetry and reproducible execution environments. |
| 11 | +- **L4 Enterprise Governance**: constitutional policy and containment controls. |
| 12 | +- **L5 Regulatory Mapping**: control-to-obligation alignment (EU AI Act, Basel, DORA). |
| 13 | +- **L6 Jurisprudential Layer**: admissibility, appeals, and precedent mapping. |
| 14 | +- **L7 Federation Layer**: verifier membership, quorum governance, dispute protocol. |
| 15 | +- **L8 Recoverability Layer**: continuity metrics and reconstruction workflows. |
| 16 | +- **L9 Frontier Layer**: bounded theoretical hypotheses requiring falsifiability. |
| 17 | + |
| 18 | +## Minimal Formal Semantics |
| 19 | +Let `S` = states, `A` = actions, `T` = transitions, `C` = controls, `R` = reporting windows. |
| 20 | +- Admissibility predicate: `P: S × A -> {0,1}`. |
| 21 | +- Evidence map: `E: T -> H` where `H` is hash-linked evidence history. |
| 22 | +- Compliance satisfaction `Sat(i,j,c,r)=1` iff verifier `j` accepts proof for statement `stmt(i,c,r)` with required evidence commitments. |
| 23 | + |
| 24 | +## Deterministic Supervisory Equivalence (DSE) |
| 25 | +For shared controls across jurisdictions, DSE is satisfied when harmonized predicates yield equivalent supervisory outcomes under agreed assumptions. |
| 26 | + |
| 27 | +## Outputs of this workstream |
| 28 | +1. Versioned architecture map. |
| 29 | +2. Predicate dictionary. |
| 30 | +3. Cross-layer dependency table. |
| 31 | +4. DSE harmonization profile template. |
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