{
  "step": "C343",
  "status": "completed",
  "date": "2026-09-24",
  "title": "Noah-held double expansion and source-binding synthesis",
  "previous_certificate_sha256": "89b887f896f27c3f02ec229d05571bb189b0ca61fcf54f13192d840e541a0b78",
  "bindings": {
    "step": "STEP.json",
    "source_manifest": "SOURCE_MANIFEST.json",
    "report": "490d_C343_Noah_Held_Double_Expansion_and_Source_Binding_Synthesis_20260924.md",
    "checkpoint": "490d_Mirror_Checkpoint_After_C343_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",
    "review_0": "evidence/ROOT_SECOND_METHOD.py",
    "review_1": "evidence/ROOT_SECOND_METHOD_RESULTS.json"
  },
  "step_sha256": "88cda6d8fd4abf61d8b3b989859ba98b40c555eb65c751b9e175a39c9bab1b5c",
  "source_manifest_sha256": "e902ae5354ead2ddce7f69a81a0eca4bf585376450a7e381ef23726a75e9efd3",
  "report_sha256": "605c2e6c6ea8a619099b8cbf6e1c57ffacb9c0776291d96027fc3ebf2b9f8156",
  "checkpoint_sha256": "592106a0cf8ca4749b974dd352fb6bdcfd258c181ca01ebfa24f52530d93d159",
  "data_sha256": "1723185d6c0457d88eb299b45c43f816f48fc7b1e6bc85182ca088174fad4314",
  "results_sha256": "ce51c62d05d4fd88c4a7131a103185c0d52e07f01fa98e98f48bad59d8358ccd",
  "calculation_sha256": "2a32eacb0cfe2b0787412290353b7a334ce0fc22cd857c844fcf68fa54bb5ef7",
  "verifier_sha256": "9f175670abb70f7819dd7f6d997ff0bef2e58df8dffd763b433f6c6cd62e332d",
  "next_step_decision_sha256": "0b2d064399938c6bd2e54b04252241d8925dd26135d9ff1cda9def56098e8a5b",
  "replay_sha256": "1106b0ff578db38c163ff2077f2ec2d8014b2d644dcd2db495ea0a95270e7869",
  "control_integrity_sha256": "9810807cb07b02f43f568f68bb82cb41a6eeff6799902254b4932e5c350ac838",
  "readme_sha256": "8a5de7aaa7430887f29735b6a8d25977acc0041299454a710eabd3ac6ba286f1",
  "review_0_sha256": "c193563bc35b0b9a92535da3ae5125afcb2cfb2f333b951037ae028b008a9d58",
  "review_1_sha256": "74185383faf919381edfb7747357f0830508d092f646aaa1a240a42bc6efee10",
  "assertions_passed": 68,
  "source_checks_passed": 56,
  "main_result": "C334–C343 complete. Primary SP Noah paths support a source-qualified Noah-held duration ladder1058→1150→1250 under E=25/23, with refinement460+490+108+92+100. Companions retain the sourced double-E endpoints but their actual MT Shem span is1149; the valid502/98 control gives1152. The full regular ladder does not select cumulative a:02 and22 remain until the separate17K condition. Scalar/C89 prior art, source qualifications and phase/map limits are retained.",
  "limits": "Conditional arithmetic and source membership do not establish authorial intention, a source-prescribed coupled selector, independent witnesses or a chronology-wide map. C344 is unexecuted.",
  "canonical_or_graph_edits": false,
  "new_independent_agent_review": false,
  "review_provenance": "Root-agent analysis and deterministic replay; no new independent-agent review",
  "next_proposed_step": "Audit File_02 §6.3’s explicitly prescribed gap conversion598×300/299=600 against the retained adjacent-Gear MT Noah/Flood endpoints. Test the existing held-endpoint realizations and their effect on the Noah-held2K/E ladder, keeping companion and modal states separate. No new endpoints, Gears, phases or anchors.",
  "next_step_executed": false
}