{
  "step": "C271",
  "date": "2026-09-24",
  "status": "completed",
  "title": "The SP three-Gear radius register",
  "previous_certificate_sha256": "73969d5cc289651b69b7894761c84b9771b745fc96cc6f82f5eb86e789335490",
  "source_manifest_sha256": "0be374c52889eb632a4c2b4c758c4eeea865e16efb687f22fa3bc10e0b7f8b8c",
  "report_sha256": "1cff67d282534eb4887a9561a59fc09e073aefda7c6e612c4d49966333616780",
  "checkpoint_sha256": "ba52cc14b18aaaa5da80f0e478ac1e926bcfe42ecc0c60f7c57653ac50633293",
  "results_sha256": "08feacf1c098b0face6c1e01e7c6f44955b6264441540623bd48d81958bf471c",
  "replay_sha256": "8cf378b20692c78ddcbc0b1c07905cc7c8942200134ff48ca4bfd5828f9b686c",
  "control_integrity_sha256": "3f9f030d52258f266969e5bc6a84d2d98521cb7ca8f32688526ce24f295231d1",
  "assertions_passed": 271,
  "replayed_output_files": 6,
  "regular_Gear_scope": [
    "Noah",
    "Shem",
    "Flood"
  ],
  "executed_domain": "SP regular Noah birth primary/companion and independent Flood start/close; G1–G3 only",
  "controls_modified": false,
  "graph_modified": false,
  "new_source_event_identities_asserted": false,
  "main_result": "Six of36 source-bound pairs preserve J1 componentwise: primary/start radii2,4,6 and companion/close radii1,3,5. All twelve endpoints recover existing cumulative LXX_OFF indices2–7 through the fixed17K translation. Only radius6 retains seasonal ratio25/23.",
  "scientific_limits": [
    "Dependent transport of inherited maps and source register, not new independent17K witnesses",
    "Indices0/1 remain uncovered by admitted regular records; opposite-role local co-location does not fill ancestry",
    "Flood close is an event boundary, not an SP person companion",
    "New stored graph paths, broader regular traditions and a universal chronology action are not asserted"
  ],
  "next_proposed_step": "C272",
  "next_step_executed": false
}