# subject_audit_parity

**Generated:** 2026-05-03 09:16:14 UTC
**Spec:** /home/profit/lakehouse/docs/specs/SUBJECT_MANIFESTS_ON_CATALOGD.md §5 Step 8
**Rust helper:** `/home/profit/lakehouse/target/release/parity_subject_audit`
**Go helper:** `./bin/subject_audit_helper`
**Audit dir:** `/home/profit/lakehouse/data/_catalog/subjects`

## Phase 1 — Known-answer vector

Hardcoded fixture row, identical inputs, byte-compare canonical-JSON + HMAC.

**MATCH** ✓

```json
{"mode":"known_answer","canonical":"{\"accessor\":{\"daemon\":\"gateway\",\"kind\":\"gateway_lookup\",\"purpose\":\"parity_test\",\"trace_id\":\"trace-fixed\"},\"candidate_id\":\"WORKER-FIXED\",\"fields_accessed\":[\"name\"],\"prev_chain_hash\":\"GENESIS\",\"result\":\"success\",\"schema\":\"subject_audit.v1\",\"ts\":\"2026-05-03T12:00:00Z\"}","hmac":"f730fa038c847c27386b92eb1939ec64c62086c0a92617ac0bdf9f650c390b96","canonical_bytes_len":266}
```

## Phase 2 — Real production audit logs

Every `*.audit.jsonl` in `/home/profit/lakehouse/data/_catalog/subjects` verified by both runtimes.

| Audit log | Rust verified | Go verified | Result |
|---|---|---|---|
| `WORKER-1.audit.jsonl` | 1 rows (true) | 1 rows (true) | **MATCH** ✓ |
| `WORKER-2.audit.jsonl` | 1 rows (true) | 1 rows (true) | **MATCH** ✓ |
| `WORKER-3.audit.jsonl` | 1 rows (true) | 1 rows (true) | **MATCH** ✓ |
| `WORKER-4.audit.jsonl` | 1 rows (true) | 1 rows (true) | **MATCH** ✓ |
| `WORKER-5.audit.jsonl` | 1 rows (true) | 1 rows (true) | **MATCH** ✓ |

## Summary

**6 / 6** parity assertions passed.

**Status: PARITY** — every Rust assertion matches Go byte-for-byte.