{
 "P0": {
  "status": "passed",
  "checks": [
   "TASK.md read fully",
   "contract.md written"
  ],
  "notes": ""
 },
 "P1": {
  "status": "passed",
  "checks": [
   "SHA-256 recorded and matched",
   "schema/missing/duplicates/gaps inspected",
   "quarterly recomputed from monthly",
   "exclusions.csv written (127-1=126)"
  ],
  "notes": ""
 },
 "P2": {
  "status": "passed",
  "checks": [
   "seasonal-naive forecasts computed with same evaluation rule; rmse/mae_snaive_h* in results.json"
  ],
  "notes": "baseline computed in analysis.py"
 },
 "P3": {
  "status": "passed",
  "checks": [
   "analysis.py reads only data/, writes results.json & forecasts.csv",
   "no randomness (random_seed null)"
  ],
  "notes": "HAC lag 4 Bartlett pre-specified before results seen"
 },
 "P4": {
  "status": "passed",
  "checks": [
   "clean re-run byte-identical",
   "14 consistency checks in checks.md all PASS",
   "look-ahead perturbation test PASS"
  ],
  "notes": ""
 },
 "P5": {
  "status": "passed",
  "checks": [
   "report.md has six required sections citing results keys",
   "claims.json valid JSON, 4 claims all in report",
   "all required files present"
  ],
  "notes": ""
 }
}