{
  "step": "C427",
  "status": "completed",
  "title": "The MT 2240 coincidence behind the template overlap",
  "previous_certificate_sha256": "d81fe1e90a4a162a36e44ea1e5c340a46d842509f8b13179e0db9c04933d31c6",
  "bindings": {
    "step": "STEP.json",
    "source_manifest": "SOURCE_MANIFEST.json",
    "report": "490d_C427_MT_Coordinate_Coincidence_Behind_the_Template_Overlap_20260924.md",
    "checkpoint": "490d_Mirror_Checkpoint_After_C427_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": "349667c4b540cb53c4948c7cefa6b4e3080cdb50354aa269ac9a86e323b78c62",
  "source_manifest_sha256": "d527b3733faa28c1ded603090f1f06ba4f834d43f6656ee410382285a96f0e85",
  "report_sha256": "6a20d783883ce3258f97dbc27e3dbe045fe354d7bd239c9141474c31a374604f",
  "checkpoint_sha256": "77bd64fe8e0d9f4e07413c3a91f94b2c625d600d563a2eebe18a4c4ff078182d",
  "data_sha256": "99e53abf52869456a8623e401b2297dac642ea7fd59d6d2ead93cb6b81bb2441",
  "results_sha256": "aae99bb63ed6ab191fa482cafcdac62a813784e46b714f100017b0b7042f5f53",
  "calculation_sha256": "52e144a64997df095402bf153dd8fea1b8928f366af8d7eed25ab7a6fbe7c19d",
  "verifier_sha256": "54ec196818f7b9bb5e18af36e2632264bb5c010834b6718e8acd860ef2eaae96",
  "next_step_decision_sha256": "a945a8306009ca76a514575a10467b61f90d4405b0811345146181383808e900",
  "replay_sha256": "a6a6405755ea93ea33b1eaf58807fc7255ff1ea9bfddd1b2fa511ec8c80e2a78",
  "control_integrity_sha256": "231cf3e4dc0edc6ff70781aa9b16678248460145408355e421bef7a9d565b260",
  "readme_sha256": "bb77bd62c9b73f3ab730e7b1859713b94e850dff759c78098e79548a10135694",
  "assertions_passed": 585,
  "source_checks_passed": 13,
  "main_result": "The576 MT Noah-death/Flood-close comparisons yield only2240 and2300, both from349=130+215+4 with matched Terah. Only2240 has an existing2K upper coordinate3298;3358 is absent. At2240, Noah3190→2240/Flood2590→2589 and Noah2841→1891/Flood2241→2240 remain separate contexts. The template overlap is a coordinate alias, not one historical identity.",
  "limits": "The coincidence is between different MT contexts. Neither absent3358 nor a merged event/person identity is admitted.",
  "canonical_or_graph_edits": false,
  "new_independent_agent_review": false,
  "next_step_executed": false,
  "next_proposed_step": "Test all26 existing regular2K coordinate pairs against every sourced cumulative Shem/Flood2K pair under the fixed17K join equations. Compare all hits with the already retained C287 domain, including SP companion cases, and keep later operator qualifications separate."
}