ISRC USB271600183
Verified recording
USB271600183 is “Dos Caras” by Rey Pirin,
registered on the CopyrightChains blockchain with CopyrightID
0xde81b31f634840aced584111b35f5e761f6c7fecc8f5bec9b48d4afc1fc19adf and independently timestamped
in Bitcoin block 960397 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB271600183.
Recording identifiers
- ISRC
- USB271600183
- Title
- Dos Caras
- Artist
- Rey Pirin
- CopyrightID (CopyrightChains transaction hash)
0xde81b31f634840aced584111b35f5e761f6c7fecc8f5bec9b48d4afc1fc19adf
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:28847d1d22883d3bdc6cacec2a5804f341fd49871c5210840ed97044f7deae36- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB271600183
- Bitcoin block existence check
- https://blockstream.info/api/block/960397