{
  "step": "C312",
  "date": "2026-09-24",
  "status": "completed",
  "title": "Same-Gear five/six-year transport and cumulative field boundary",
  "previous_certificate_sha256": "a65dda7d5121d60de1b97c5ed83e35798d604c1beecf844a500cb1b29591bfc0",
  "bindings": {
    "source_manifest": "SOURCE_MANIFEST.json",
    "step": "STEP.json",
    "test_plan": "TEST_PLAN.json",
    "report": "490d_C312_Same_Gear_Transport_and_Field_Boundary_20260924.md",
    "checkpoint": "490d_Mirror_Checkpoint_After_C312_20260924.md",
    "results": "evidence/RESULTS.json",
    "data": "evidence/DATA.json",
    "calculation": "evidence/CALCULATION.py",
    "verifier": "evidence/check_c312.py",
    "review": "REVIEW.json",
    "replay": "REPLAY.json",
    "control_integrity": "CONTROL_INTEGRITY.json",
    "next_step_decision": "NEXT_STEP_DECISION.json",
    "readme": "README.md",
    "source_review": "evidence/C312_Source_Derivation.md",
    "independent_review": "evidence/C312_Independent_Math_Review.md",
    "independent_script": "evidence/C312_Independent_Math.py",
    "independent_results": "evidence/C312_Independent_Math_Results.json"
  },
  "source_manifest_sha256": "bdfefeecf8810d01d5166102e9dcaafd4455a7fba55c5256fe26d34f48b558dd",
  "step_sha256": "a127201c3f33cf456493a2773f1b2c46214ffee272f420fb500bf80444ddefd8",
  "test_plan_sha256": "72e0c2a6696aef65c8aad15bbab354bbf12ed67a0f5ef90531566230827307f7",
  "report_sha256": "7f95762ce0abdd906c32267b4622c2841ec84568b7aeef30c95ee0a8b0ac7fcd",
  "checkpoint_sha256": "2589ffcac9cff451045f9121d307f16ff4c741c9a11e5a862d09f81d50b6cd9d",
  "results_sha256": "b2ab75fe7a3fc3d5141b884e41514f4fe65a17622faecf1a1ec40c029c9e564e",
  "data_sha256": "b73bd2d6c54b74901d41c8aa199dc1fe963bdd1981cabafe9f7c3b498f9a7d17",
  "calculation_sha256": "f52b7c39faf3c5f7dfdd4a522a91d6f1ee2106258b7f75ce7b9e5a054233c18b",
  "verifier_sha256": "a1a34a12f7be1d325f026b23828e34696b86b304f2ae68a5a9c010fdf6ec23ab",
  "review_sha256": "49306f9bcf326abc1db5d76c2404f3dd11384a57a0a7fa2a97f33deb5f6d29e8",
  "replay_sha256": "08811330d4091f0a3b1373127db20af6aafef18f6ef8285d4f6a5e0d50ca62e6",
  "control_integrity_sha256": "c6be9525a91b0a2ab55e1d3649f7e048a445ae580aa770e5bf01b6539794046a",
  "next_step_decision_sha256": "9b65b1606932276881c97de58e43fed4b399422bdfb372e889df8634761f38dd",
  "readme_sha256": "395da589849faecb9cf79007d4289db303cdc96754d0e9408dfd801d95a29d02",
  "source_review_sha256": "51f0566eee5f10cf07221eb104616f8f4652a8ea24cfb64322f6b67389ac02bc",
  "independent_review_sha256": "aaf253943cbf9cdd543299ac968962682e276d294cc64308072a2bcb67a88283",
  "independent_script_sha256": "2c47587fd91bf7a6ced2565d72846eacd0750a794273986993769b25dfe6db09",
  "independent_results_sha256": "43f1ffd7ad9ef6c9548ae54d98a90da6e82a23671cdd05604d0e199ec96128bf",
  "assertions_passed": 33,
  "source_checks_passed": 15,
  "frozen_inputs": 12,
  "main_result": "Six admitted regular pairs satisfy B_SP=B_MT−5−r. Under C−B=2832 the cumulative indices satisfy j=i−1+r. Four complete field-to-field transports exist; G1 primary is target-only and G1 companion lies outside both cumulative fields.",
  "counts": {
    "regular_pairs_MT": 3,
    "regular_pairs_SP": 6,
    "same_Gear_comparisons": 6,
    "admitted_complete_cumulative_transports": 4,
    "target_only_boundary_cases": 1,
    "outside_both_fields": 1
  },
  "limits": [
    "The rule uses the existing SP rail label; one rail-blind translation fails",
    "Regular pair validity and cumulative-field membership are distinct",
    "Index8 is a diagnostic, not an admitted endpoint",
    "No source-prescribed C310 context selector is established",
    "No new529 identity, historical intentionality, statistical independence or global axis law is claimed"
  ],
  "canonical_or_graph_edits": false,
  "new_independent_agent_review": true,
  "next_proposed_step": "After expressing the five existing SP Shem-life targets in OFF/Terah0/full430, which preserve the500-year Noah-to-Shem birth binding to the SP Noah endpoint selected by17K with the same Gear and rail?",
  "next_step_executed": false
}