{
  "step": "C431",
  "status": "completed",
  "title": "All sourced realizations of the thirteen squared-E maps",
  "previous_certificate_sha256": "bc37e76b6fa57dfd70dbd2aff07fb3ac0b65e5cd13cadded32a9988d36503fe1",
  "bindings": {
    "step": "STEP.json",
    "source_manifest": "SOURCE_MANIFEST.json",
    "report": "490d_C431_All_Sourced_Realizations_of_Thirteen_Squared_E_Maps_20260924.md",
    "checkpoint": "490d_Mirror_Checkpoint_After_C431_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": "450093ce9b9aa89812ed645a04d75db06b217fbd23beab1943a250859bca6ad7",
  "source_manifest_sha256": "dd2ea9cc2852e452e21ba6e2773ffedfea7d18c17d6c59c3425bb80b8f8a2759",
  "report_sha256": "6baeb7e925861cff44194d286a8f18e2d436c3e095b1d7aa4e59e147472a72d5",
  "checkpoint_sha256": "4f3326e7232d87866e050c23c87aae3791f8f73925931d5b87b9662fd68b09ed",
  "data_sha256": "54a7ffe8bc323d73f8d1fdacfb8abbceea401eeacc7eca069e7073c8ccabb32b",
  "results_sha256": "36dbcb1efdbd1de72e2f77e3359f0f74c059fb99e9c7257493ed2bd466c1642b",
  "calculation_sha256": "cd4cf6e5f79363d23aa3b226ea5f3c461fe2f1fc8e4e547235afd19ba7a67ef8",
  "verifier_sha256": "54ec196818f7b9bb5e18af36e2632264bb5c010834b6718e8acd860ef2eaae96",
  "next_step_decision_sha256": "de1ea6c801dac8fbf05ecc45059332ddab42fb58c7d5683bbdf7f8dd7672d803",
  "replay_sha256": "f851cece9796efd03da4ee4e2c3b37e90bf253b326c583060d92fccf030b4fc1",
  "control_integrity_sha256": "231cf3e4dc0edc6ff70781aa9b16678248460145408355e421bef7a9d565b260",
  "readme_sha256": "e9633d2ad00b8cf32e3aa7a96414ccea2296568dae2163a4ecf7ac3404b910df",
  "assertions_passed": 4850,
  "source_checks_passed": 14,
  "main_result": "The13 sourced E² targets ×373 first pivots yield39 sourced pivot-pair solutions and five complete coordinate paths. Four are known fixed-pivot Noah ladders. One new distinct-pivot path repairs the held3206 map:2148→2020→1956 about3620 then2756, with effective pivot3206. Parameter t18 gives gap expansions64×23→64×25 and32×23→32×25, gains128+64=192. Eight endpoint-only maps remain unrepaired; fixed intermediate2056 remains absent.",
  "limits": "The positive result is a coordinate path in the deliberately generous existing-source pivot menu. No source-prescribed pivot grammar, new endpoint, new phase or global chronology operator is inferred.",
  "canonical_or_graph_edits": false,
  "new_independent_agent_review": false,
  "next_step_executed": false,
  "next_proposed_step": "Audit the actual source identities and contexts of the new2148→2020→1956 factorization and its pivots3620/2756 directly from current passages. Check its+2 counterpart and inherited quarter components, keeping coordinate-path validity separate from a prescribed source operation or one Noah biography."
}