ISRC QMVRR1230850
Verified recording
QMVRR1230850 is “Somebody That I Used to Know - Cha Cha” by Luiz Bonfá,
registered on the CopyrightChains blockchain with CopyrightID
0x053e0cc82d60a3bb7806f4a958d4805d2936d52bffaa1f42d22af843114d04a6 and independently timestamped
in Bitcoin block 960277 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMVRR1230850.
Recording identifiers
- ISRC
- QMVRR1230850
- Title
- Somebody That I Used to Know - Cha Cha
- Artist
- Luiz Bonfá
- CopyrightID (CopyrightChains transaction hash)
0x053e0cc82d60a3bb7806f4a958d4805d2936d52bffaa1f42d22af843114d04a6
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T16:10:47+00:00
- Bitcoin block
- 960277
- Canonical record hash
sha256:483753aaefd7c3b75d0499467122206b6e3bb04dd3d5b24120e95a5d20c0669d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMVRR1230850
- Bitcoin block existence check
- https://blockstream.info/api/block/960277
Full record
Track page: Somebody That I Used to Know - Cha Cha · Machine-readable JSON-LD