{
 "P0": {
  "status": "passed",
  "checks": [
   "TASK.md read fully",
   "contract.md written"
  ],
  "notes": ""
 },
 "P1": {
  "status": "passed",
  "checks": [
   "sha256 of both files computed and match README",
   "row/col counts, gaps, duplicates, missing checked",
   "quarterly recomputed from monthly (max diff 3.3e-7)",
   "exclusions.csv: 127-1=126"
  ],
  "notes": "no availability violations in inputs; truncation per origin handled in code"
 },
 "P2": {
  "status": "passed",
  "checks": [
   "seasonal-naive forecasts computed for 40 origins x 3 horizons with same error rule; rmse/mae_snaive_h* in results.json"
  ],
  "notes": ""
 },
 "P3": {
  "status": "passed",
  "checks": [
   "analysis.py reads only data/, deterministic (no RNG, random_seed=null)",
   "240 forecasts written"
  ],
  "notes": "sar_aic: seasonal-dummy AR(p), AIC p<=4, iterated"
 },
 "P4": {
  "status": "passed",
  "checks": [
   "clean rerun byte-identical",
   "14 checks in checks.md all PASS/NOTE",
   "leakage test passed"
  ],
  "notes": ""
 },
 "P5": {
  "status": "passed",
  "checks": [
   "report.md with 6 required sections, numbers cite results.json keys",
   "claims.json valid JSON, 3 claims matching report"
  ],
  "notes": ""
 }
}