ISRC ESA011644920
Verified recording
ESA011644920 is “Cuestión Olvidada” by Efrain Toledo y Sus Calentanos,
registered on the CopyrightChains blockchain with CopyrightID
0x14241fe0bcba5eb6d01d0d08eeca8b61324f314ffc695b40a3af3c828ed7fe30 and independently timestamped
in Bitcoin block 960095 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA011644920.
Recording identifiers
- ISRC
- ESA011644920
- Title
- Cuestión Olvidada
- Artist
- Efrain Toledo y Sus Calentanos
- CopyrightID (CopyrightChains transaction hash)
0x14241fe0bcba5eb6d01d0d08eeca8b61324f314ffc695b40a3af3c828ed7fe30
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T11:07:37+00:00
- Bitcoin block
- 960095
- Canonical record hash
sha256:a4fe5e23b84e5eddc84a6a50f5e4b7950c6f7ef34757a5eaa64479bbf9f94657- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA011644920
- Bitcoin block existence check
- https://blockstream.info/api/block/960095