{
  "step": "C376",
  "status": "completed",
  "date": "2026-09-24",
  "title": "Finite P/J source-edge census at the retained Flood pivots",
  "previous_certificate_sha256": "9189f3a94f8850f85c0774a5f5cad488bdf6c2e91a71a99b98471451205dd013",
  "bindings": {
    "step": "STEP.json",
    "source_manifest": "SOURCE_MANIFEST.json",
    "report": "490d_C376_Fixed_Pivot_P_J_Source_Edge_Census_20260924.md",
    "checkpoint": "490d_Mirror_Checkpoint_After_C376_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": "28ad7873c868b88fee5e29c864dda02a6797d01732c7dcc2979512d389905143",
  "source_manifest_sha256": "04b7ab602b1d72a8bdba537fdf723af8ce6237997654fc2952b19053114fb788",
  "report_sha256": "8ed3669c45a04d53e414494f89242a1e43be8bb1659a15641e8d5c8870531899",
  "checkpoint_sha256": "a034d44dd7ad5ea901d3535495fe8941b278f1c5ff955ff73899ff0c91950eb3",
  "data_sha256": "5518e3a25ff329fb90ee8028247e5dba5cd9679e8a2f0f55c41cf113ccd9361f",
  "results_sha256": "c9f65ac4d7d08a02c9c409316828939e7ac2f61e9d3c001477473f8365741213",
  "calculation_sha256": "0b08f4a507c65a7f2b70fb02698096004f240de7d54076f4e9fb903a41f07d71",
  "verifier_sha256": "9f175670abb70f7819dd7f6d997ff0bef2e58df8dffd763b433f6c6cd62e332d",
  "next_step_decision_sha256": "a4deee87488c90b2842ff2182effdf76145612ace553e9e88a6d8efa0970fe85",
  "replay_sha256": "33eabf891160f2fda85602eb32bb70811192e553907642aafda3a7142a8e7e24",
  "control_integrity_sha256": "9810807cb07b02f43f568f68bb82cb41a6eeff6799902254b4932e5c350ac838",
  "readme_sha256": "644f9f84d30c1ab2b9256fa323ab0dc5ff3fa62c32bf28cd21309be133fcfb60",
  "assertions_passed": 18,
  "source_checks_passed": 16,
  "main_result": "The exhaustive fixed-pivot census finds only the known shared P/J repair in each supporting field, with no continuation at unchanged pivots. Four additional regular J-only299→300 edges form coordinates2946→2947→2948→2949→2950 when their pivots change. All source identities are retained pending ancestry review.",
  "limits": "Source-edge enumeration is a finite comparison at inherited pivots, not blanket source permission to apply operators in every context. Coincident records, inverse edges and fixed points are not new witnesses.",
  "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": "Resolve the source ancestry of the four additional299→300 edges. Test whether they form one admitted Noah-death family, whether matching Noah births travel with them, and whether their cumulative exchanged coordinates exist in the frozen menu.",
  "next_step_executed": false
}