ISRC USZZR1011536
Verified recording
USZZR1011536 is “Guantanamera” by Sergio Y Estibaliz,
registered on the CopyrightChains blockchain with CopyrightID
0xb6952cb40d7b190838472a4b86de36437aafa45b2e8c41fa68b4c75e13134823 and independently timestamped
in Bitcoin block 960258 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZZR1011536.
Recording identifiers
- ISRC
- USZZR1011536
- Title
- Guantanamera
- Artist
- Sergio Y Estibaliz
- CopyrightID (CopyrightChains transaction hash)
0xb6952cb40d7b190838472a4b86de36437aafa45b2e8c41fa68b4c75e13134823
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T12:45:34+00:00
- Bitcoin block
- 960258
- Canonical record hash
sha256:568c08ceb62f48440b121f82a96a4ad929dfa3454ebf74a70cd996802f71c426- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZZR1011536
- Bitcoin block existence check
- https://blockstream.info/api/block/960258