{
  "step": "C347",
  "status": "completed",
  "date": "2026-09-24",
  "title": "Gap conversion versus coherent Noah biography transport",
  "previous_certificate_sha256": "e6147b731cfa8987fd3652c61e968ca795b155d7ffe60df813ec5501cf3baf99",
  "bindings": {
    "step": "STEP.json",
    "source_manifest": "SOURCE_MANIFEST.json",
    "report": "490d_C347_Gap_Conversion_vs_Noah_Biography_Transport_20260924.md",
    "checkpoint": "490d_Mirror_Checkpoint_After_C347_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": "dbceb594f62b85da715802e3cd3d98fcf61c5335f4612eea7618e1691f600495",
  "source_manifest_sha256": "e2b9b3103aff91001ee7ce8b57b50e1db550e5e8da01d228bfbc09b21a4e48d6",
  "report_sha256": "fba771ebb8467776739799493f2518a203494f9506d8d876fe9586a2c081a56e",
  "checkpoint_sha256": "3195426ebb443b974340af2a301ac2f0bbf48af16466a739becd8ded31e5f77c",
  "data_sha256": "4f7b292710b441c15d4f84e6f8399d1d8daf711a78075dd9f9bbd2302bcd44fb",
  "results_sha256": "3448e77009afd935c122b8219f7dcce47cd1f80474150163d16cb21a6e7ce403",
  "calculation_sha256": "c378bd01cec3e6a1eab31c70d8f9d94a9e23c61a8612bcb7dde643b20d3a2d0a",
  "verifier_sha256": "9f175670abb70f7819dd7f6d997ff0bef2e58df8dffd763b433f6c6cd62e332d",
  "next_step_decision_sha256": "09239e69dd8ed9023a0cc14afeb4409bbd2a21ed97696d226fd32b0a985d362a",
  "replay_sha256": "a2f3effa760f8214907fe9325ae82e67f7843cd4230ae0ff779ebd8b5f5bbfc4",
  "control_integrity_sha256": "9810807cb07b02f43f568f68bb82cb41a6eeff6799902254b4932e5c350ac838",
  "readme_sha256": "f643e96ff6624123e026b9228d473644f39d6ef4c7fcd86b23a82ddd2682a533",
  "assertions_passed": 14,
  "source_checks_passed": 16,
  "main_result": "Source MT Noah birth/death Gear motion is+2/+2 and preserves950. A Flood-fixed300/299 expression matches the birth but misses the new source death by−950/299; its lifespan is285000/299. Gap conversion and biography translation remain distinct.",
  "limits": "No diagnostic fractional image is adopted. Calendar-year/ResidueProtocol physics is not reopened.",
  "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": "Exhaust the existing quarter-year component pairings for the598 primary and599 companion gaps and both held-endpoint repairs. Determine exact phase requirements and compare component-preserving gap conversion with a single physical-time affine dilation.",
  "next_step_executed": false
}