ISRC ES5087400034
Verified recording
ES5087400034 is “Carta a mi viejo” by Alberto Cortez,
registered on the CopyrightChains blockchain with CopyrightID
0x691eadd70543a87c836e3e9a7c81cd49639a258034af12bcbcc516ba69fd8d5e and independently timestamped
in Bitcoin block 960419 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5087400034.
Recording identifiers
- ISRC
- ES5087400034
- Title
- Carta a mi viejo
- Artist
- Alberto Cortez
- CopyrightID (CopyrightChains transaction hash)
0x691eadd70543a87c836e3e9a7c81cd49639a258034af12bcbcc516ba69fd8d5e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T15:20:33+00:00
- Bitcoin block
- 960419
- Canonical record hash
sha256:4e1e5d99216f5e71b3655cf540b4e1af5f2d9140df3c71fa602300263f66a4bf- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5087400034
- Bitcoin block existence check
- https://blockstream.info/api/block/960419