ISRC QM4TW1537767
Verified recording
QM4TW1537767 is “Luz Negra” by Nelson Cavaquinho,
registered on the CopyrightChains blockchain with CopyrightID
0x2cff52167aab16893ae5e3f586b889c1631262873b3e11e7308fb745559276bd and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1537767.
Recording identifiers
- ISRC
- QM4TW1537767
- Title
- Luz Negra
- Artist
- Nelson Cavaquinho
- CopyrightID (CopyrightChains transaction hash)
0x2cff52167aab16893ae5e3f586b889c1631262873b3e11e7308fb745559276bd
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:b9de80d583533fbf1b830f2bd2a295ebca5e07988633730f96ba631319a5c8a6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1537767
- Bitcoin block existence check
- https://blockstream.info/api/block/960138