1- 2026-10-30 P0 passed: contract written.2- 2026-10-30 P1 passed: audit written, 1 missing (2025-10). Decision: model AR(2) on first differences, OLS with intercept, sample from 1948, fixed a priori (no selection on evaluation window).3- 2026-10-30 P2,P3 passed; P4 checks all pass (checks.md); running gate.4- 2026-10-30 P4 passed (gate run 1 failed only on P5 items); P5 report+claims written; final gate.5- 2026-10-30 final gate PASSED (20261030T053257.338613Z). Task complete.6