{
 "P0": {
  "status": "passed",
  "checks": [
   "TASK.md read fully",
   "contract.md written"
  ],
  "notes": ""
 },
 "P1": {
  "status": "passed",
  "checks": [
   "SHA-256 of 10 inputs computed and match README",
   "rows/cols/date ranges/NA/duplicates/gaps recorded in data_audit.md",
   "info-availability: current_vintage restricted to revision stat",
   "exclusions.csv written and sums verified"
  ],
  "notes": "no missing or duplicate data; pandemic outliers noted"
 },
 "P2": {
  "status": "passed",
  "checks": [
   "naive forecasts computed for 8 origins x 2 horizons vs first releases",
   "rmse_naive_h1/h2, mae_naive_h1/h2 in results.json"
  ],
  "notes": ""
 },
 "P3": {
  "status": "passed",
  "checks": [
   "analysis.py reads only data/, no randomness (random_seed null)",
   "AR(1) estimated per vintage only",
   "results.json, forecasts.csv generated"
  ],
  "notes": "model specified a priori before computing errors"
 },
 "P4": {
  "status": "passed",
  "checks": [
   "clean re-run byte-identical",
   "13 consistency checks all PASS (see checks.md)"
  ],
  "notes": ""
 },
 "P5": {
  "status": "passed",
  "checks": [
   "report.md with 6 required sections, numbers cite results keys",
   "claims.json keys verified to exist in results.json"
  ],
  "notes": ""
 }
}