ISRC NLG661500372
Verified recording
NLG661500372 is “Repeat” by Sef,
registered on the CopyrightChains blockchain with CopyrightID
0xb276b6b63f4a153d903873c151c3b6ff15167cebca7bd057330a77bd971b32e8 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG661500372.
Recording identifiers
- ISRC
- NLG661500372
- Title
- Repeat
- Artist
- Sef
- CopyrightID (CopyrightChains transaction hash)
0xb276b6b63f4a153d903873c151c3b6ff15167cebca7bd057330a77bd971b32e8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:0a64dd26bebdccdefbe09f70bbdc6900d44169b8dcba172b8d2aeff94dc4ec1b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG661500372
- Bitcoin block existence check
- https://blockstream.info/api/block/956304