1- 2026-10-30 P0 passed: contract written.2- 2026-10-30 P1 passed (audit, assembled file rejected). P2 baseline = 2001-2013 mean. P3 analysis.py written. P4 checks all pass; gate run 1 receipt 20261030T043158.026815Z (failed only on P5 files not yet written). P5 report/claims written.3- 2026-10-30 final gate PASSED (receipt 20261030T043229.696823Z). All phases passed.4