Stage 1 — 11 Final Summary

Status: PASS

Gateway SSOT runtime contract is LIVE; shared policy/identity/register foundations exist and are proven; QT live path not worsened; Stage 2 packet ready; canonical docs updated. One risky branch (live gateway integration Option C) is deliberately deferred to Stage 2/T2 review — all safe branches complete.

Open-goal outcome (coherent end-to-end, not just functions created)

1. SSOT is real at runtime. birth_gateway_release_registry + drift guard + integrity dashboard mean there is one live, fail-closed place to verify the current gateway contract via semantic SHA-256 — not a DOT heredoc. (§2 of the design is now realized.)
2. Realtime and QT-001 now CAN share one path. fn_birth_policy_decision / fn_birth_resolve_identity / fn_birth_register exist, are deterministic/no-write/fail-closed, and reproduce live EXEMPT-skip + REQUIRED-birth behaviour (proven exhaustively over all 168 registry collections + a rolled-back write rehearsal). Policy is no longer implicit across scripts.
3. Backfill cannot fire by accident. Register defaults to dry-run; permit + ledger are empty (fail-closed); QT-001 gate BLOCKED until 43 identities classified and a permit opened.
4. No behavior drift. Live gateway untouched; the contract is provably ≤ live in births for every class (no-worse). Stage 0 freeze + guards all still green.

Key numbers

birth_registry 1,210,851 (birth-neutral) · tga 129 · apr 42 · BIRTH_REQUIRED 74 (31 identity-resolvable / 43 unclassified) · DEFERRED 58 · EXEMPT 36 · contract tracked 5 fns all OK · guards: policy 6/6, identity 5/5, register 7/7, F no-go 4/4, G compat 8/8, no-worse 5/5, Stage 0 still-enforced 5/5.

Exact blocker

None technical for Stage 1. QT-001 backfill intentionally BLOCKED by design until Stage 2 (classify 43 unclassified identities + resolve 2 no-table REQUIRED + open admission permits). Live gateway integration (Option C) awaits T2/operator review.

Next macro

BIRTH_STAGE2_QT001_IDENTITY_CLASSIFICATION_AND_METADATA_BACKFILL (+ optional gateway thin-wrapper integration under T2 review).