{
  "step": "C394",
  "status": "completed",
  "date": "2026-09-24",
  "title": "Primitive E23-to25 edges: P/J and Mirror compatibility",
  "previous_certificate_sha256": "6b20f281aa7ae9d423131af0e5f02d2098f8f2d392ca947457cdf74804eae5d1",
  "bindings": {
    "step": "STEP.json",
    "source_manifest": "SOURCE_MANIFEST.json",
    "report": "490d_C394_Primitive_E23_to25_P_J_and_Mirror_Compatibility_20260924.md",
    "checkpoint": "490d_Mirror_Checkpoint_After_C394_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",
    "test_plan": "TEST_PLAN.json"
  },
  "step_sha256": "863cebf788f1920236c6ba8a3edcf438c6841cb2e28f22dd1a870f49cf38028c",
  "source_manifest_sha256": "d780e0be09d42ac92efc24e0857a27d316c9fca4a7c4a17fda6555e81b93de8b",
  "report_sha256": "ccda6b601710c48ffc6e6242cc51ad8d3a2d8b9d619a6152d77cbef7daeda536",
  "checkpoint_sha256": "84bd6c794d5eeee980f3d95b0f5f20d92f2ad1465fdc5a9fc3beea36079d01ad",
  "data_sha256": "5ad7a38b700656871607ea3cf535ef7217a518d7388c44b5e30821f57b440f5e",
  "results_sha256": "0394965555649932a30b80189330d81feb31249c99d778bc87ba92059f17f54c",
  "calculation_sha256": "02d76be7854efdedbd330ad766f85cc6f09c5120d5334b320a7ebcd182430fd6",
  "verifier_sha256": "9f175670abb70f7819dd7f6d997ff0bef2e58df8dffd763b433f6c6cd62e332d",
  "next_step_decision_sha256": "efa7bbee5f6a1933f8200e998462f86d476d07a79f184dc834de8490e4a377fc",
  "replay_sha256": "3011592d1ebaa0e48476badcbd31c2b5c06c49b6275c0b919529042ce6b4722d",
  "control_integrity_sha256": "9810807cb07b02f43f568f68bb82cb41a6eeff6799902254b4932e5c350ac838",
  "readme_sha256": "7093cafb07023cd5af51bee449780e4429621a992521ffbcc54c6161c290a278",
  "test_plan_sha256": "84d38f8415cc7e0e09923ad766403711d348f5e3759454cb9b1c380b84fb9759",
  "assertions_passed": 19,
  "source_checks_passed": 18,
  "main_result": "Two sourced E23→25 reverse-Gear Noah edges have J return arrows at existing Flood pivots3083/3085. Only those two of eight required P/J pivot slots are sourced. P and same-orientation J fail membership; neither original17K reflection gives a complete cumulative diagram.",
  "limits": "The absence checks are confined to the frozen regular/cumulative menus. Coordinate aliases are not independent witnesses. Whole-map inversion and biography preservation have not been inferred from endpoint return.",
  "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": "Determine the exact affine maps around the two E/J source endpoint loops, including order, fixed points, matched phases and950-year Noah biography transport.",
  "next_step_executed": false
}