{
  "step": "C354",
  "status": "completed",
  "date": "2026-09-24",
  "title": "Shem adjacent-Gear 598 to 600 source census",
  "previous_certificate_sha256": "14cc8d4050affb9faf0f72177b4b5264b390badb8a4e5583b6dfee3466afd1a9",
  "bindings": {
    "step": "STEP.json",
    "source_manifest": "SOURCE_MANIFEST.json",
    "report": "490d_C354_Shem_Adjacent_Gear_598_to_600_Source_Census_20260924.md",
    "checkpoint": "490d_Mirror_Checkpoint_After_C354_20260924.md",
    "data": "evidence/DATA.json",
    "results": "evidence/RESULTS.json",
    "calculation": "evidence/CALCULATION.py",
    "verifier": "evidence/check.py",
    "next_step_decision": "NEXT_STEP_DECISION.json",
    "replay": "REPLAY.json",
    "control_integrity": "CONTROL_INTEGRITY.json",
    "readme": "README.md"
  },
  "step_sha256": "bb771b0bd1a5f04b397adf09f9cd79615aa2ef2f33bce518e8fb5fa871dda82f",
  "source_manifest_sha256": "9e363b7c6e992acafb2b76208fc5f55e24d775a28ce80b906673cdba926a2c9b",
  "report_sha256": "847837643a03fa9003f926d33ccd11d7c5b14f0317ea92b4145816038295e0c1",
  "checkpoint_sha256": "dc563f5d94450081426c4b08a0af73ae5f1c20a01c2e3a340f5745d5fa489895",
  "data_sha256": "05ac0fb18f54d01e6e62792c5b1c561374aa4ed53d50346cb52fc73e939fd5d7",
  "results_sha256": "3de118bdc75e826ddf6ef416c015197d5503cb2b551963363f5ed9d391c4d475",
  "calculation_sha256": "7686827ee76574c62e70cb90070798202b82072972dc445553ad3bb158da5e83",
  "verifier_sha256": "9f175670abb70f7819dd7f6d997ff0bef2e58df8dffd763b433f6c6cd62e332d",
  "next_step_decision_sha256": "89e5cd1cda3680e95f47d12e51ef82a612c1d206595eaa6e057499944312faab",
  "replay_sha256": "72b463721acf65d15d099a6605b8b23b6963645ded829177e032c7682e6d9e0c",
  "control_integrity_sha256": "9810807cb07b02f43f568f68bb82cb41a6eeff6799902254b4932e5c350ac838",
  "readme_sha256": "dea41556c091700cef5fb38572f23f413f92897a6eba95a068634e1720b10b05",
  "assertions_passed": 174,
  "source_checks_passed": 16,
  "main_result": "64 matched-context adjacent-Gear Shem598 comparisons each admit two existing600 biographies, including16 SP companion inputs. Direct E_N images of the focused intervals do not form complete source pairs.",
  "limits": "A source-qualified cross-state598 gap is not a598 lifespan. Broad absence claims, new coordinates, new phases and unrestricted source actions are not licensed.",
  "canonical_or_graph_edits": false,
  "new_independent_agent_review": false,
  "review_provenance": "Root-agent analysis and deterministic replay; no new independent-agent review",
  "next_proposed_step": "Translate the retained primary E_N relations by600 and check every translated pivot, input and output against the frozen register. Test whether the Shem birth/death connection survives as a fully sourced comparison.",
  "next_step_executed": false
}