1- 2026-10-30 P0 passed: contract written.2- 2026-10-30 P1 passed: data audited, hashes match README, only 1995Q1 dropped (missing inflation by construction).3- 2026-10-30 Decision: model = AR(p)+quarterly seasonal dummies, p in 0..4 chosen by AIC per origin, OLS, iterated multi-step; HAC = Bartlett (Newey-West) lag 4 (>= h-1=3), normal p-value; sensitivity: rectangular lag 3, HLN correction with t(39).4- 2026-10-30 P2-P4 passed; gate run 20261030T042550 (P5 items pending). P5 report/claims written.5- 2026-10-30 Final gate PASSED (receipt 20261030T042619.689024Z). Task complete.6