{"run_id":"000000000000000000000000000smoketest","chain_valid":true,"first_broken_seq":null,"chain_head":"39bb179c831cb96bf5695d348e8d63866bf540f440c329fd451e74c1dc1d8a83","event_count":2,"genesis_ts":"2023-11-14T22:13:20+00:00","model_snapshot":"anthropic/claude-sonnet-4-6","fault_count":0,"merkle_root":null,"anchor_date":"2023-11-14","verification_algorithm":"sha256-chain","verification_spec":"hash = sha256(prev_hash + canonical_json(event_fields))","computed_at":"2026-06-18T07:17:24.942403+00:00"}