# Log
- 2026-10-30 P0: read TASK.md, wrote contract.
- 2026-10-30 P1: audited data; found 36 corrupted lines and 25 thousands-separator prices. Decision: exclude corrupted lines; keep quoted thousands-separator prices (unambiguous), report sensitivity.
- 2026-10-30 P2: baseline = provider control totals (n_records_control, sum_price_control) — the task names these baseline keys.
- 2026-10-30 P3: analysis.py written; deterministic, no RNG.
- 2026-10-30 P4: re-run byte-identical; 14 consistency checks pass (checks.md). Gate run next.
- 2026-10-30 P5: report and claims written; gate PASSED (20261030T045801.549580Z). All phases passed.