# Log
- 2026-10-29 P0: read TASK.md, wrote contract.
- 2026-10-29 P1: audited the data. Decided: drop the 45 exact duplicate rows, convert USD_thousands to millions, and drop the 6 firms with missing revenue only from the revenue aggregates. Note: the shell cwd was data/ on the first write, so analysis.py was created in data/out/. It was moved to out/ and data/out removed; data/firms.csv hash verified unchanged.
- 2026-10-29 P2: baseline mean_revenue_raw = 30695.88 (mixed units, includes duplicates).
- 2026-10-29 P3: analysis.py written and run.
- 2026-10-29 P4: determinism and 14 consistency checks passed.
- 2026-10-29 P5: report and claims written.