1- 2026-10-30 P0 passed: contract written.2- 2026-10-30 P1 passed: inputs audited, no exclusions. Decision: counterexample Y = S*X with S independent Rademacher (sum has atom 1/2 at 0, non-constant) — avoids Y=-X which is invalid because constants count as normal.3- 2026-10-30 P2-P4 passed: analysis deterministic, checks.md all PASS, gate run 1 (P5 items pending).4- 2026-10-30 P5: report, claims written; final gate run.5