{
  "step": "C375",
  "status": "completed",
  "date": "2026-09-24",
  "title": "Source-corner conjugacy of the paired P/J comparisons",
  "previous_certificate_sha256": "c353e5f72458f828e7407a5eec64fded5da3a2e91b530acbac3189f1549e895b",
  "bindings": {
    "step": "STEP.json",
    "source_manifest": "SOURCE_MANIFEST.json",
    "report": "490d_C375_Paired_P_J_Source_Corner_Conjugacy_20260924.md",
    "checkpoint": "490d_Mirror_Checkpoint_After_C375_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": "d94f321a3db958c954647119621916042f8ec7181ba5bac8b55003414395030c",
  "source_manifest_sha256": "ee7f42e3cf7b41990fd7b20de27136521369a1841522cacac1e218dad3d6e845",
  "report_sha256": "5a579afd0ff0c6c324ec92d3e4771e8c9702db93660af96532f9aa345c85a5b4",
  "checkpoint_sha256": "ff7a0b1a19b99eb3ec25baeec7719941bf35ac7af48c0ca334c82a5dcaf1169a",
  "data_sha256": "ea01f55d1635bbbab22b505a5a9bcbd90c9e30547ba94a1bb5d4755468d250c9",
  "results_sha256": "544825bc7218ac4d72e5dfa96aa6a1c536ad67c701461d53aa588d01fb4b35e6",
  "calculation_sha256": "a1d6e063555435184880206fa3b16532f2ed489060a765018304aae73e691d5b",
  "verifier_sha256": "9f175670abb70f7819dd7f6d997ff0bef2e58df8dffd763b433f6c6cd62e332d",
  "next_step_decision_sha256": "3100569f53f57d623591d3d65962b6ae3bd2d0379b861c8ce7eee143ff3014f1",
  "replay_sha256": "5635108aea11cae21bfada70443ff3f5775ee33afcd01b60997de9c99f44dcfa",
  "control_integrity_sha256": "9810807cb07b02f43f568f68bb82cb41a6eeff6799902254b4932e5c350ac838",
  "readme_sha256": "ea3cd66eecb92712b2ef669a99859a39e149c071ba854c5e4868236478b899d8",
  "assertions_passed": 47,
  "source_checks_passed": 16,
  "main_result": "The existing source-corner exchange conjugates both anchored P/J maps and pairs their Flood pivots on all four complete rows. Only primary i3/i5 carry actual MT Noah input/output records; companion images would require nonexistent MT person companions. Fixed-sum exchange reverses phase and is not a same-offset global action.",
  "limits": "Conjugacy is between specified affine comparisons. It does not supply a common global axis, a textual prescription for joint use, or missing MT companion records.",
  "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": "Enumerate all nontrivial P/J endpoint comparisons at these same frozen Flood pivots within the existing cumulative48-member and regular528-record Noah/Shem/Flood menus. Preserve source identities, separate fixed points, and check whether the common repair extends to further source-supported edges.",
  "next_step_executed": false
}