- 2026-10-30 P0 passed: contract written.
- 2026-10-30 P1 passed: audit found post_cut all 0, sample ends 2019-12-31 -> estimand infeasible; decided premise_invalid, no proxy.
- 2026-10-30 P1 passed: audit found post_cut all 0, sample ends 2019-12-31 -> estimand infeasible; decided premise_invalid, no proxy.
- 2026-10-30 P2/P3 passed: baseline -0.042851 bp; effect null (premise_invalid).
- 2026-10-30 P4 passed: clean rerun identical; gate run 1 failed only on missing P5 artifacts.
- 2026-10-30 P5: report and claims written; final gate run.
- 2026-10-30 Final gate PASSED (20261030T044158.884212Z.json). Task complete.