# Log
- 2026-10-30 P0 passed: contract written.
- 2026-10-30 P1 passed: audit found zero post_cut=1 rows (sample ends 2019-12-31), so the estimand can't be computed; decided premise_invalid, no proxy.
- 2026-10-30 P2-P4 passed (baseline computed, re-run identical, gate run 1 only flagged P5 pending). P5 passed; final gate receipt 20261030T044117.624120Z.json passed.