# Log

• 2026-10-30 P0: read TASK.md, wrote contract.md. passed.
• 2026-10-30 P1: audited data, wrote data_audit.md and exclusions ledger (generated by analysis.py). passed.
• 2026-10-30 P2: baselines naive and expanding mean computed in analysis.py under required keys. passed.
• 2026-10-30 P3: ridge implemented exactly as specified; added Diebold-Mariano tests (extra keys dm_*) for the Uncertainty section. passed.
• 2026-10-30 P4: reproducibility + independent recomputation checks pass (checks.md). Running gate.
• 2026-10-30 P4 passed (gate receipt 20261030T041349.253511Z.json; only phase-status failure). P5: report and claims written; final gate run follows.
• 2026-10-30 final gate receipt 20261030T041356.268018Z.json; all phases passed.