Apier.no Changes API
Cross-source change archive — detected archive events from Brreg, Altinn, DigDir, Norges Bank, NAV Aa-registeret, and Skatteetaten Tier 2 sub-results (MVA-register + Skatteoppgjør). Each row's derived observation_kind separates first-time archive sightings from real observed changes; queries without entity_id return non-personal rows only. Category B (read:changes scope, per-tier rate limit). Cursor-paginated for stable iteration over a moving stream.