{
  "step": "C453",
  "status": "completed",
  "title": "The 23-Year Source-State Residual and One-Gear E Arrows",
  "previous_certificate_sha256": "f4cf2898fbc0bd61e4a4d32cd7de63300de0ceeb6b700cb8bc06102ffacfbdcf",
  "bindings": {
    "step": "STEP.json",
    "source_manifest": "SOURCE_MANIFEST.json",
    "report": "490d_C453_Source_State_23_Residual_Census_20260925.md",
    "checkpoint": "490d_Mirror_Checkpoint_After_C453_20260925.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": "b58b5cab4a93df14f0bc376ed50751590adaa1ec2f46aa075a1330de49b35af2",
  "source_manifest_sha256": "5b0238ead12ff069b83d5c9cd7b27d36d8480b7fd71d8f913c12694695a393b7",
  "report_sha256": "a2be8dc3c4b13718e62e11b98d903ab4e178678e3ce67c860488cfb5ec9a3ed1",
  "checkpoint_sha256": "582937fa635620a81518781c852b33c22a383f4dd99917b58cb061df1be6d9d9",
  "data_sha256": "4d4be1ba7abdf26b84d45078a8f66df41586266bff0a3b4c2f878878ffdd3418",
  "results_sha256": "5545996dcb82bb57f6715ecb1907a3fb2ea95e2871bcb7ec4a48f9bd42fe754d",
  "calculation_sha256": "45440bc2f62ea3b0debdc8ae11499126b561f6f47b4ea57ff0fccb8854aab939",
  "verifier_sha256": "46964ade0128d97b589fb678853daf7b81ffff1d90eb1a99221031ba734b093f",
  "next_step_decision_sha256": "45b327af93cd268fbd3c6d4bdd49eebff3168c9211dd671eb355a5794dc3d075",
  "replay_sha256": "adc4b9ec2f399a333a200686333eea0b75d4f06f4850c718de88224db09346fd",
  "control_integrity_sha256": "24e687bf3e03c7f16c3ca2aafe4c72e9aab25f03d55fa644c44a178e698ff3df",
  "readme_sha256": "4e25b6fb3b9007b5183b0d59004066eead49feb11fe21037068d06eb29844001",
  "assertions_passed": 176,
  "source_checks_passed": 20,
  "main_result": "The residual215−130−60−2=23 generates88 same-role source-label E templates, representing64 distinct coordinate arrows. Five label templates realize three of the four one-Gear arrows at the fixed pivots. The remaining arrow is MTNoah2841→2843 about2818, explained by950−650−215−60−2=23.",
  "limits": "The88 templates are not88 independent witnesses or an expansion of the fixed operator menu. Every shift is limited to Noah/Shem/Flood source records.",
  "canonical_or_graph_edits": false,
  "new_independent_agent_review": false,
  "next_step_executed": false,
  "next_proposed_step": "Census every nonzero529-multiple coordinate pair in the frozen373-coordinate register and compare it with mixed E/reflection reachability, retaining source identities and parity classes."
}