Checkpoint — FIX7 Authority-Seal Contract Executable Ready

• Date: 2026-06-10 · Host: T1 · Status: FIX7_AUTHORITY_SEAL_CONTRACT_SELF_CODEX_READY
• Production mutation: NO · Codex consulted: NO · N7/N8/P7 authored: NO/NO/NO · Self-seal: NO

From CODEX_FIX7_AUTHORITY_REJECT (AS-P1..AS-P4) → executable, byte-exact, acyclic authority-seal contract for N7/N8/P7.

• AS-P1 CLOSED — N7 encoder encode_node("N7"), domain tag FIX7_ACTIVE_AUTHORITY_ENVELOPE_MANIFEST_V1, fixed 13-field roster.
• AS-P2 CLOSED — DAG acyclic (N7→N2..N6,N1; N8→N2,N5,N6,N7; P7→N2,N7,N8); order N7→N8→P7; old A4 cycle deleted; has_cycle=False.
• AS-P3 CLOSED — N8 encode_node("N8"), tag FIX7_CODEX_DETACHED_SEAL_V1, binds N7 + Codex signer/timestamp/parent/report.
• AS-P4 CLOSED — P7 seal_p7(), tag FIX7_AUTHORITY_SEAL_PIN_V1, digest seal artifact; prose-only rejected; mutation-detected.

Executable: authority_seal_encoder.py (sha256 47200442…a452b5bb, 19131 bytes) — --selftest 22/22 exit 0; grammar proven byte-identical to canonicalizer rev3 (rec/digest/FORBIDDEN_BYTES/engineering EDGES all equal). Spec authority-seal-encoder-spec.md + .json (generated from encoder).

Engineering preserved: Packet V3 tree b95df0a5…ca6d, canonicalizer rev3 49c386a9…b734d0 (rev3, 38756 bytes) unchanged; no engineering contradiction.

Patched: n7 md/json rev2, n8 md rev2, p7 md rev2; blocker ledger rev5; reports (master, AS closure ledger, DAG, test vectors, self-Codex dry-run); current-state.

Remaining = owner/Codex authority inputs only: A1/A2/A3/A5 (N7), Codex signer/seal (N8), Codex seal_p7 (P7), owner blueprint decision (OWN-1), separate implementation authorization. No self-seal, no fabricated approval.

Next: route patched closure packet → Codex seal macro. All implementation/production gates remain closed.

Master report: knowledge/dev/laws/tool-kiem-thu/reports/fix7-authority-seal-contract-executable-master-report-2026-06-10.md