1- 2026-10-30 P0 passed: contract written.2- 2026-10-30 P1: audit done, hashes match, no missing/dups. Decision (a priori): model = AR(1)+intercept OLS on each vintage, regression obs t from 1985Q1, excluding t in 2020Q2–2020Q4 (pandemic outliers as y_t or y_{t-1}); h=2 iterated.3- 2026-10-30 P1 passed (audit). P2 passed: naive baseline computed in analysis.py.4- 2026-10-30 P3 passed: AR(1) model; added supplementary DM-HLN test (supp_* keys).5- 2026-10-30 P4 passed: clean re-run identical; all checks pass (checks.md).6- 2026-10-30 P5 passed: report.md, claims.json written; claim keys verified.7