{
  "step": "C462",
  "status": "completed",
  "title": "Inherited Annual Rows and the 17K Cross-Span Condition",
  "previous_certificate_sha256": "2ada12c37046fb981cafcb3db76007570611cad24631e73fbc5058cdba96963d",
  "bindings": {
    "step": "STEP.json",
    "source_manifest": "SOURCE_MANIFEST.json",
    "report": "490d_C462_Mirror_Phase_Ancestry_and_17K_Condition_20260925.md",
    "checkpoint": "490d_Mirror_Checkpoint_After_C462_20260925.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": "ea1cabf69975c6f194bd2ceb99aadf8d62fbf4bc02fa665fc2d2700bd2131ce7",
  "source_manifest_sha256": "c1db9b56ae0c523fa387dcd99b3f6d310195ecd8cae4c775438c2369c9ac554d",
  "report_sha256": "dc9a87c7e9bb9bd44948076bf272851b725991e8df1135edb53d907bd4077da9",
  "checkpoint_sha256": "c612e0710d076d158c30c6c11e05c0ce8d0598d9e1081f9c6493bf3a85f71f7d",
  "data_sha256": "f190d94083ddabdfb8123bd7302bcefacacd1702603c11026fd67d8ba8ec6eec",
  "results_sha256": "b2ef49d427c8a0496a4dc85e66491e21f696752458d6d9cc2f776104b70abd70",
  "calculation_sha256": "5480fbae98e61dcaed93664a623581ee34e1fe7471bc8f8781f049734253efa1",
  "verifier_sha256": "46964ade0128d97b589fb678853daf7b81ffff1d90eb1a99221031ba734b093f",
  "next_step_decision_sha256": "6782d5127f10800c93f4840421bc40579902940eede06f460c5f7f9e1a3a573b",
  "replay_sha256": "889d0d1c75fd76cfaa6e6a877a140be2b30469304910dc5d0ee15ca4ebac0143",
  "control_integrity_sha256": "24e687bf3e03c7f16c3ca2aafe4c72e9aab25f03d55fa644c44a178e698ff3df",
  "readme_sha256": "14e0b181e59250bc32d00e65e6dd098d49e36dd9b23f0f09ef02fda15bc4b5ff",
  "assertions_passed": 9,
  "source_checks_passed": 21,
  "main_result": "C287 already records four complete17K annual rows, with exchange constants−2641,−2639,−2637 and−2635. The active two-constant test preserves exactly thei3 andi5 assignments. Its three other sourced images reassign annual slots and change the cross-span by−2,+2 or+4; none is a new17K corner.",
  "limits": "All four archived rows remain valid within their inherited bindings. Only the two previously fixed exchange constants are used for the following comparison; no new global Mirror axis is introduced.",
  "canonical_or_graph_edits": false,
  "new_independent_agent_review": false,
  "next_step_executed": false,
  "next_proposed_step": "Conjugate every admitted E/reflection arrow through each of the two fixed Mirror exchanges, requiring cumulative source records for both transformed endpoints and the transformed anchor, and separate endpoint-only images from fully qualified comparisons."
}