{
  "step": "C351",
  "status": "completed",
  "date": "2026-09-24",
  "title": "Cumulative counterpart of the600 endpoint repairs",
  "previous_certificate_sha256": "7d959a8cb90f419fa8a361d50bcf3d3076f2943fe45c43a92a211675da6ff8dd",
  "bindings": {
    "step": "STEP.json",
    "source_manifest": "SOURCE_MANIFEST.json",
    "report": "490d_C351_Cumulative_Counterpart_of_600_Repairs_20260924.md",
    "checkpoint": "490d_Mirror_Checkpoint_After_C351_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": "34ae3d5ee5bcad7be0bb50dfb5d8bd3980dc161bcc774e06d21325329bf791ef",
  "source_manifest_sha256": "7eddbcc4ab9e92d4cac1b831eb7c541a5e27b0fae99a2667bb17a9e9c6997dab",
  "report_sha256": "03562643079e8e92cfeb8ade14ae6b0c044c72e09a459f8f89239f93f6601f73",
  "checkpoint_sha256": "8fd1801a893f1c6aa7fcdffb94224ca534bd592d75d06787f71c60d85900a743",
  "data_sha256": "601d7aaffb59a7c237559900569b3c0192646c8fba1efc660323db3645251b17",
  "results_sha256": "bfc23d2ab96fd310e05cff70174657937e5c6fa3a4d1aa077a62c2f92635a456",
  "calculation_sha256": "4bc98210ed7771d98871edf4d96e1cb58b66b734f85858b165676338e2ae3344",
  "verifier_sha256": "9f175670abb70f7819dd7f6d997ff0bef2e58df8dffd763b433f6c6cd62e332d",
  "next_step_decision_sha256": "c8ff4c46624b4b09b7f415199e4d1b3e403000d15c221dc9a69f145448323b6e",
  "replay_sha256": "bde92a5d981a42db2ee22c7e41b04b90e327503e12e7a98e3bd62640622e1776",
  "control_integrity_sha256": "9810807cb07b02f43f568f68bb82cb41a6eeff6799902254b4932e5c350ac838",
  "readme_sha256": "3a98dbb78a58dcaf215cb0098a2a849eb46f0337fda9e8f5a95feaf2fde910d4",
  "assertions_passed": 30,
  "source_checks_passed": 18,
  "main_result": "Cumulative i2…5 admit458+600=1058 via an OFF-Shem annual-member change. Primary i3/i5 admit the corresponding regular repair, preservingboth2K and17K outer spans.458 is a mixed-index/context leg, not revised Cainan460. Companions lack the regular counterpart.",
  "limits": "Same retained annual and Gear domains; no new cumulative Gear, lifespan, phase, anchor or prescribed joint operator.",
  "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": "Test the paired598-input requirement in C319’s fixed a,b menu and identify its exact dependency on the existing2K conditions. Recheck File02’s regular-gap and cumulative-propagation permissions before assigning any coupled source-rule status.",
  "next_step_executed": false
}