ISRC QM4TW1596094
Verified recording
QM4TW1596094 is “El Último Trago” by Chavela Vargas,
registered on the CopyrightChains blockchain with CopyrightID
0x37a4ae0dde77e1a348daa309f710f01f00af68cc7e9f267d14465c62f0158bc8 and independently timestamped
in Bitcoin block 960448 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1596094.
Recording identifiers
- ISRC
- QM4TW1596094
- Title
- El Último Trago
- Artist
- Chavela Vargas
- CopyrightID (CopyrightChains transaction hash)
0x37a4ae0dde77e1a348daa309f710f01f00af68cc7e9f267d14465c62f0158bc8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T18:48:12+00:00
- Bitcoin block
- 960448
- Canonical record hash
sha256:eaa573e9c9b8db805b2ff186936ffb73529284ec43bb0075c7ea3595a723e13a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1596094
- Bitcoin block existence check
- https://blockstream.info/api/block/960448