README: cite concept DOI 10.5281/zenodo.20245468 (v2 published)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

README.md

@@ -6,9 +6,11 @@ behaviour, software engineering. Each note is archived on
 
 ## Notes
 
-| Note | Date | DOI |
-|------|------|-----|
-| [Pre-execution self-review catching a self-introduced state-threading defect in an autonomous code-remediation agent](agent-self-review-precommit.md) | 2026-05-16 | [10.5281/zenodo.20245469](https://doi.org/10.5281/zenodo.20245469) |
+| Note | Date | Cite (concept DOI) | Latest version |
+|------|------|--------------------|----------------|
+| [Pre-execution self-review catching a self-introduced state-threading defect in an autonomous code-remediation agent](agent-self-review-precommit.md) ([PDF](agent-self-review-precommit.pdf)) | 2026-05-16 | [10.5281/zenodo.20245468](https://doi.org/10.5281/zenodo.20245468) | v2 — [10.5281/zenodo.20246057](https://doi.org/10.5281/zenodo.20246057) |
+
+> Cite the **concept DOI** (`10.5281/zenodo.20245468`) — it always resolves to the latest version. v1 = `10.5281/zenodo.20245469`.
 
 ## Zenodo archiving