{"snapshot_id":43,"source_id":"nppes","snapshot_date":"2026-06-02","content_hash":"2f550a8ee17f7ec7d3251d53ddf6201d4eac47758872b3b4afe895ace4948770","content_size_bytes":0,"source_archive_url":"https://fonteum.com/data","hash_algorithm":"SHA-256","methodology_version":"v2026.05.0","attested_at":"2026-06-02T06:15:14.872162+00:00","cache_url":null,"cache_cached_at":null,"cache_retention_expires":null,"verify_url":"https://fonteum.com/verify/43","verify_instructions":"https://fonteum.com/docs/cache"}