ISRC QZKU62000200
Verified recording
QZKU62000200 is “El Rey” by Grupo Sigma,
registered on the CopyrightChains blockchain with CopyrightID
0x0daebd64ba4a27bc55655816bb56cdcca8742cd19e313c1147ba11df6076e6bf and independently timestamped
in Bitcoin block 960144 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKU62000200.
Recording identifiers
- ISRC
- QZKU62000200
- Title
- El Rey
- Artist
- Grupo Sigma
- CopyrightID (CopyrightChains transaction hash)
0x0daebd64ba4a27bc55655816bb56cdcca8742cd19e313c1147ba11df6076e6bf
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T21:09:47+00:00
- Bitcoin block
- 960144
- Canonical record hash
sha256:e7e92c46d226e7b6597068796e3c7c55e26c0b02c005431aba6eceb77396e1d1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKU62000200
- Bitcoin block existence check
- https://blockstream.info/api/block/960144