03 · NOM timestamp observer
NOM's external ledger compares Wikipedia revision time with arXiv publication time. NEW / OLD is temporal only; it is not proof of topical relevance or scientific truth.
Not loaded. The GitHub link works even if browser cross-origin reading is unavailable.
04 · Append-only session receipts
No session receipts
SHA-256 hashes detect local edits but are not signatures; a malicious actor can replace the whole local chain. Export off-device for independent retention. No automatic NOM submission.
Production handoff
Implemented: case-sensitive foundation grammar, source-linked observation input, pre-witness forecast, scored outcome, export, and optional read-only NOM ledger access. Not yet operationally certified: server-side durable storage, signatures, identity/access controls, external replay protection, authenticated NOM synchronization, scheduled ingestion, or prediction calibration. The frozen KET baseline is unchanged.