- 2026-10-30 P0 passed: contract written.
- 2026-10-30 P1-P3 passed: audit, baseline 0.3247, OLS/HAC/Chow implemented. Decision: HAC L=4 (NW rule), normal CI; added HAC Wald break test as robustness since classical Chow assumes equal variances.
- 2026-10-30 P4 passed: reproducible, consistency checks pass, gate receipt 20261030T045115 (P5 items pending).
- 2026-10-30 P5 passed: report, claims written; gate PASSED (receipt 20261030T045156.615880Z).