Provenance is a platform default, not an upgrade. Sample size and as-of on every cell, on every plan. Per-record trace and external audit on Enterprise.
- Sample size on every cell (UI + API + CSV)
- As-of timestamp on every cell
- "Thin market" indicator below n=30
- Source-class distribution on every plan
- Per-record provenance trace (Enterprise)
- Annual external methodology audit (Enterprise)
- Versioned canonical taxonomy with changelog
- No PHI, no patient data, ever