{
  "step": "C353",
  "status": "completed",
  "date": "2026-09-24",
  "title": "Source600 repairs and partial operator structure synthesis",
  "previous_certificate_sha256": "c7d717ef3e3671b17b3e4ec9c2376e12bc864ec377d6af01b9c36f0baefa2df6",
  "bindings": {
    "step": "STEP.json",
    "source_manifest": "SOURCE_MANIFEST.json",
    "report": "490d_C353_Source_600_Repairs_and_Partial_Operator_Synthesis_20260924.md",
    "checkpoint": "490d_Mirror_Checkpoint_After_C353_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",
    "review_0": "evidence/ROOT_SECOND_METHOD.py",
    "review_1": "evidence/ROOT_SECOND_METHOD_RESULTS.json"
  },
  "step_sha256": "70bdf36731835eb8b6f51bc1c45b3bcf132926985aa2a446b72e1ea08ce55d8e",
  "source_manifest_sha256": "235ca4ed8f315758a5613fa3cdc9940e9caa9562d45b68e3c228ba27cdf18209",
  "report_sha256": "68004c9c165aa98bc0635f36d24ebce602c0a69f3273005c2bd816881af00ecf",
  "checkpoint_sha256": "b26e97e034a99fe262ceda2d2a06cc857c50c90ad621cb9f7b04d5c02ba5f53e",
  "data_sha256": "0692b73295ab74ed4b0cd0c40d3596082675a204c48956e6843c9a6e2854d0d2",
  "results_sha256": "711ceaa14ef724c333761c81756e8401dcfe57ee3479c2cfaf09218c09ddfd73",
  "calculation_sha256": "c5dcc6e18964b4bfa22ccbcbdc1d645b66b209c66129a9eb182ecee5ee830060",
  "verifier_sha256": "9f175670abb70f7819dd7f6d997ff0bef2e58df8dffd763b433f6c6cd62e332d",
  "next_step_decision_sha256": "599b290fa7c2ae4a87d6414a282b7e198c7f63ebc7e1d993700e2e52bf862313",
  "replay_sha256": "b3466fd5401f2665160efae1e9ac10623719c39ae834edfcf8cfee7e8898a472",
  "control_integrity_sha256": "9810807cb07b02f43f568f68bb82cb41a6eeff6799902254b4932e5c350ac838",
  "readme_sha256": "e68e6dc76026ad4aa7323016fa5bec2361a49ce444563bed9a88718d5c02ad17",
  "review_0_sha256": "2b163f2142488f75bbf3f9251468b2101c292e09a9601118300c61b4c5f9c1b4",
  "review_1_sha256": "aba98079664e41150ff358bb3b0a0de683eb7399b7a3eac3e74e641e8c0392fd",
  "assertions_passed": 68,
  "source_checks_passed": 57,
  "main_result": "C344–C353 complete. Primary598→600 has two source repairs: preserving2K gives458+492+108; preserving460/490 gives1060. The cumulative counterpart preserves1058 as458+600 at i2…5, and both primary sides can do so at i3/i5 with all2K/17K outer endpoints fixed. Noah-held E sends the original primary598 interval to an actual SP/MT Shem650 pair. The supported endpoint moves form bounded partial relations; whole-biography and single-physical-time dilation claims fail their stated tests. Both598 inputs select22 primary, but actual600 outcomes leave9 admitted primary controls across allfour choices. No new coupled source prescription.",
  "limits": "Finite source comparisons and arithmetic identities do not establish authorial intention, independent witnesses, a prescribed paired selector or a global chronology action. C354 is unexecuted.",
  "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": "Audit the same598→600 comparison on existing adjacent-Gear Shem birth/death pairs in the frozen regular Noah/Shem/Flood register, keeping contexts and matched SP rails explicit. Determine whether any pair connects to the retained529/E endpoint relations; add no source endpoints, phases, anchors or broader Gear scope.",
  "next_step_executed": false
}