- 2026-10-30 P0 passed: contract written.
- 2026-10-30 P1: audit done; one missing UNRATE (2025-10) outside window.
- 2026-10-30 P1 passed: exclusions ledger 319->314->312->240.
- 2026-10-30 Decision: HAC bandwidth L=4 (NW rule of thumb), Bartlett, no df correction, normal critical value.
- 2026-10-30 P2/P3 passed: beta=-0.2558, se_iid=0.0200, se_hac=0.0358.
- 2026-10-30 P4 passed: reproducible, all consistency checks pass.
- 2026-10-30 P5 passed: report and claims written. Task complete.