{
  "step": "C308",
  "date": "2026-09-24",
  "status": "completed",
  "title": "Two supplied anchors: point coverage versus600-year segments",
  "previous_certificate_sha256": "a1b45bf2b80f2a9c50fc0716cdb32952e006e2abd022f6a0d2e13bafead147d8",
  "source_manifest_sha256": "f7c6475d199dfe4e9e9f6886a65024531f5ce5519701b3bd53bd7319c92c142f",
  "step_sha256": "cd8921d9b727c459f79392682b3868561f38bc5c4f448ce8a12a662d0d40ce33",
  "report_sha256": "dcaa033f64778e0b80a28134229b0e3eea44ec3c881b22c2b203ccb794d2bb45",
  "checkpoint_sha256": "37c6a40810cb4dcdc3fc9b173b086a733ffa5ab0895f3f73a49c4644567d93f2",
  "results_sha256": "c62bef2a47ff6cf459af527b158fd4b69bcdb2ff63020a87f92768943e83fb73",
  "data_sha256": "a682eb3cbe2c9f9413ae20f5206e81f15e8b0bab78dfdd8a932ea69e32756ddd",
  "calculation_sha256": "1b7bb862306a043ad40c9c4a63f4d9a7f53d4f28cf4fd76797950f22335d170e",
  "verifier_sha256": "1b0d77f7bd90c94c014bf13467830ac053579a4ca021d6d777d8442441f73259",
  "review_sha256": "bc5c6b6de7b16d6e1ac40f951ddebc8a5d4a4aa84207819e6321686a46b7b3c8",
  "replay_sha256": "41935d5d6dd2278d75aaa38e6a3f1dcada4232cf98a5408a184f6d6417976263",
  "control_integrity_sha256": "2bdfea94e7a5937fa7dae00b92f5313fd11afcc6ddcf715ff669889d2ca47c82",
  "next_step_decision_sha256": "aaedd525cb048e8b1cc2263b89e8188fbfc11e53ce9443696edaddc7f18b3337",
  "assertions_passed": 12,
  "source_checks_passed": 9,
  "frozen_inputs": 7,
  "main_result": "The supplied Exodus anchor gives11 labels/eight coordinate point matches covering all SP_OFF Shem indices, but zero complete600 segments.",
  "limits": [
    "This is not a held-out statistical test.",
    "Both anchors were supplied; no further anchor scan was performed.",
    "No companion, Gear, new historical event or changed bridge is inferred."
  ],
  "canonical_or_graph_edits": false,
  "new_independent_agent_review": false,
  "next_proposed_step": "C309: Audit the independent mathematical constraints and source qualifications behind the batch’s main claims, separating structural gains from aliases, consequences and placement assumptions.",
  "next_step_executed": false
}