{
  "step": "C378",
  "status": "completed",
  "date": "2026-09-24",
  "title": "Complete frozen Flood-pivot census for common P/J images",
  "previous_certificate_sha256": "574e1217efa99a25a9f6c74aecafd2ea3642cfe91cfa10a6b80df47fe1bdd957",
  "bindings": {
    "step": "STEP.json",
    "source_manifest": "SOURCE_MANIFEST.json",
    "report": "490d_C378_Complete_Flood_Pivot_Common_P_J_Census_20260924.md",
    "checkpoint": "490d_Mirror_Checkpoint_After_C378_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": "ea91b516e01708fa1f167ed3a42d09a57bbf431c7e97569d9ba259717015e8ac",
  "source_manifest_sha256": "02edb31a2790912d4bf44fa2f34198523e07de78d32867a2c0e5951905538fc5",
  "report_sha256": "852cd665eeaa7acd4077d8680c6e36090168571b3d0e8334aa0db3b7d7234c6b",
  "checkpoint_sha256": "c53a24462cda9ed923a9d0a34d126a9925a6d1b8a1b1ad466aa94d94bd2115cd",
  "data_sha256": "a5954eb554b281793dbf74784fd853f3a318ecfd0a56770af4f3dbedd10b483c",
  "results_sha256": "2188f017977a55feaaf281cb17079c678a23a0225397dda5053cf9b88bc2e7d7",
  "calculation_sha256": "c5546ac924defe3fcffb0ff48d29df9fdcf7af94e9b87ee525b431ba025ee105",
  "verifier_sha256": "9f175670abb70f7819dd7f6d997ff0bef2e58df8dffd763b433f6c6cd62e332d",
  "next_step_decision_sha256": "bde8546db61da37ca536a5afaea1f46930a5155959c598f7750e3b0face367db",
  "replay_sha256": "b04a3fde591985a08cc6b83a6898bca15d6f7fd779cdd0d62b27ab90bbe3db3c",
  "control_integrity_sha256": "9810807cb07b02f43f568f68bb82cb41a6eeff6799902254b4932e5c350ac838",
  "readme_sha256": "99649b196cfd22ceb853cb99349161d00ec060cd460f4b724bc5c5fd58e4e614",
  "assertions_passed": 14,
  "source_checks_passed": 15,
  "main_result": "Across240 cumulative and9120 regular ordered Flood-coordinate pairs, complete P/J source support occurs only at signed scale−2 cumulative and+2 regular. There are six cumulative and four regular coordinate quadruples. No230 pivot pair exists;±920 candidates lack source endpoints. The regular additions are215-year translated configurations awaiting context qualification.",
  "limits": "This is a finite frozen-menu census. A coordinate match preserves its source labels but does not authorize blending contexts, creating source nodes or treating replicas as independent evidence.",
  "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": "Qualify all four regular common-image quadruples by tradition, Gear, event boundary and chronological context. Test their source529 sides and their possible2K/17K pairing with the six cumulative repairs, separating the full430 and215-year-shifted branches.",
  "next_step_executed": false
}