ISRC USUL19700131
Verified recording
USUL19700131 is “Nunca Jamás” by Cristian Castro,
registered on the CopyrightChains blockchain with CopyrightID
0x5d9f1de2b50b8bc070111394c65eaf742bdaeac761ccee5a0fd03210f84633db and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUL19700131.
Recording identifiers
- ISRC
- USUL19700131
- Title
- Nunca Jamás
- Artist
- Cristian Castro
- CopyrightID (CopyrightChains transaction hash)
0x5d9f1de2b50b8bc070111394c65eaf742bdaeac761ccee5a0fd03210f84633db
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:c00ea3b65192996e756622d78247bc9e95e9f40f7111f582687320a34351eb7d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUL19700131
- Bitcoin block existence check
- https://blockstream.info/api/block/953520