ISRC QZMZ92568020
Verified recording
QZMZ92568020 is “Doble Cara” by Los 4,
registered on the CopyrightChains blockchain with CopyrightID
0x78afc233828ecdd06f4ba4f58d45b3dbb2dafc64fbf77143e42e07fb4f3e7d7b and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92568020.
Recording identifiers
- ISRC
- QZMZ92568020
- Title
- Doble Cara
- Artist
- Los 4
- CopyrightID (CopyrightChains transaction hash)
0x78afc233828ecdd06f4ba4f58d45b3dbb2dafc64fbf77143e42e07fb4f3e7d7b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:d686d8a6b05606b0050c2e0f699f64c770e55d084381e4e20a338a9e553c5534- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92568020
- Bitcoin block existence check
- https://blockstream.info/api/block/956302