v5: July 2026 export (419 portals, 2.56M datasets)

v4: 2026-06-26 export (47 portals, 1.85M datasets; new manifest/reports/identity + changelog)

Refresh open-data index: 47 portals, 1.85M datasets

Rebuild 2026-06-20: 1,782,609 datasets / 42 portals (data.gov restored, EU via keyset cursor)

v3: March 2026 export — 890k datasets from 32 portals

v2: update ceres-open-data-index dataset