ISRC NLG620602658
Verified recording
NLG620602658 is “"The Wilhelmus" (National Dutch Anthem) - Fantasie and March” by Willem Hendrik Zwart,
registered on the CopyrightChains blockchain with CopyrightID
0xdb3d069d11433304a3fbed1abe78e24b71e53e4d80a5cd8e60c030328e6d9994 and independently timestamped
in Bitcoin block 957120 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620602658.
Recording identifiers
- ISRC
- NLG620602658
- Title
- "The Wilhelmus" (National Dutch Anthem) - Fantasie and March
- Artist
- Willem Hendrik Zwart
- CopyrightID (CopyrightChains transaction hash)
0xdb3d069d11433304a3fbed1abe78e24b71e53e4d80a5cd8e60c030328e6d9994
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:1a600ac060af8b4d9246e1edfe82bb183b00098620859f6d175e140968c9fdd4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620602658
- Bitcoin block existence check
- https://blockstream.info/api/block/957120
Full record
Track page: "The Wilhelmus" (National Dutch Anthem) - Fantasie and March · Machine-readable JSON-LD