ISRC QM4TW1679000
Verified recording
QM4TW1679000 is “Esquina” by Sebastião Antunes & Quadrilha,
registered on the CopyrightChains blockchain with CopyrightID
0xe7cada9df1844c20ad645ae4d76165255e4ebd12347322999d16e3e3d98793fe and independently timestamped
in Bitcoin block 960302 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1679000.
Recording identifiers
- ISRC
- QM4TW1679000
- Title
- Esquina
- Artist
- Sebastião Antunes & Quadrilha
- CopyrightID (CopyrightChains transaction hash)
0xe7cada9df1844c20ad645ae4d76165255e4ebd12347322999d16e3e3d98793fe
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T20:09:33+00:00
- Bitcoin block
- 960302
- Canonical record hash
sha256:5d48cb4f2295ec72eeaad630423c53ed4c40657eb2db1ac815cfc0a98d2bd08e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1679000
- Bitcoin block existence check
- https://blockstream.info/api/block/960302