{
  "step": "C426",
  "status": "completed",
  "title": "Four context templates behind the complete 2K census",
  "previous_certificate_sha256": "9b8a6eb055cfd73276c242f39af7fd9b04539d07da6aed14053c8830a2ea7791",
  "bindings": {
    "step": "STEP.json",
    "source_manifest": "SOURCE_MANIFEST.json",
    "report": "490d_C426_Four_Context_Templates_of_the_Complete_2K_Census_20260924.md",
    "checkpoint": "490d_Mirror_Checkpoint_After_C426_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": "3f7516155a7dcab277819b3e27c3fdf22120bcd984c0a1a1a017132ba68cae15",
  "source_manifest_sha256": "49aa4ff96d8a4518b8abd4fcf714f92a5fc11f3bdfb3267d943b84a714923125",
  "report_sha256": "581992a5b56d7932c9910402462c7fcecb852156df45874d61a29de97afac84b",
  "checkpoint_sha256": "7c41a94710903fd0416905730cffdb7c8ec67fced15c2bbc5bdcc41ebaad6808",
  "data_sha256": "0ec00c92da78f44f954bd01cf5351b8b4af96e36777b8272b919a816c4262c49",
  "results_sha256": "ccfdc0ef5a0e9faf0edf8b038c60915e50e56044c0775cf4bdfcbb9b07ec8908",
  "calculation_sha256": "e643b06dfbca0f67e9a42c8d4fb1bd6c743fec718837fb6b0d73a3fa4599a729",
  "verifier_sha256": "54ec196818f7b9bb5e18af36e2632264bb5c010834b6718e8acd860ef2eaae96",
  "next_step_decision_sha256": "3041b904d7a94cc93208219afb3632201df9d2968edb8a36c90c6e2967dd483a",
  "replay_sha256": "b795fada29ad217809c6cb04e08fb8f08f7667ebf93bc3ea2e795052b394da24",
  "control_integrity_sha256": "231cf3e4dc0edc6ff70781aa9b16678248460145408355e421bef7a9d565b260",
  "readme_sha256": "d96642acc15bddf04bf74320c1855afe2c69f15b99efc3d840f54238a8b7577a",
  "assertions_passed": 575,
  "source_checks_passed": 14,
  "main_result": "All46 labelled2K pairs reduce to four context offsets:458 (20 labels/12 coordinates),708 (16/8),1057 (4/2),1059 (6/5). Role and local companion terms complete1058. Their coordinate union has26 rather than27 pairs because3298/2240 belongs to both708 and1057 templates through two distinct MT lower records: Noah deathG3/C1/T0/F1 and Flood closeG1/C0/T0/F0.",
  "limits": "The four templates classify the frozen observed census. They are not yet an independently generated symbolic completeness proof. SP/LXX coordinate normalization never makes them one source witness.",
  "canonical_or_graph_edits": false,
  "new_independent_agent_review": false,
  "next_step_executed": false,
  "next_proposed_step": "Resolve the MT Noah-death/Flood-close coincidence responsible for the sole template overlap. Census all such MT record coincidences, retain their separate biographies and event contexts, and check which can actually participate in an existing2K pair."
}