{
 "P0": {
  "status": "passed",
  "checks": [
   "TASK.md read fully; contract.md written"
  ],
  "notes": ""
 },
 "P1": {
  "status": "passed",
  "checks": [
   "SHA-256 matches README",
   "417x7, contiguous months, no duplicates",
   "missing values located (neworder_chg 1992-01/02)",
   "exclusion ledger sums 417-4=413"
  ],
  "notes": "README empty-cell discrepancy recorded"
 },
 "P2": {
  "status": "passed",
  "checks": [
   "naive and expanding mean computed on same 60 origins"
  ],
  "notes": ""
 },
 "P3": {
  "status": "passed",
  "checks": [
   "analysis.py implements spec; deterministic, no seed"
  ],
  "notes": ""
 },
 "P4": {
  "status": "passed",
  "checks": [
   "rerun byte-identical",
   "independent reimplementation with corrupted future data matches to 5e-11",
   "metric identities hold",
   "see checks.md",
   "gate run 20261030T040957.248107Z: failed only on report.md (not yet written) and non-terminal phases; reproducibility ok",
   "gate receipt 20261030T041020.597944Z.json: PASSED 0/38 failed"
  ],
  "notes": ""
 },
 "P5": {
  "status": "passed",
  "checks": [
   "report.md with 6 sections written",
   "claims.json 4 claims, keys resolve",
   "final gate run (receipt recorded below)",
   "gate receipt 20261030T041020.597944Z.json: PASSED 0/38 failed"
  ],
  "notes": ""
 }
}