ISRC QMBZ91433222
Verified recording
QMBZ91433222 is “La Cumparsita” by Alfredo De Angelis,
registered on the CopyrightChains blockchain with CopyrightID
0x067f27987e5e3fe6bad0fdf1d5238893259ff3ce7fb6ca411176394a85cbb5a5 and independently timestamped
in Bitcoin block 960117 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91433222.
Recording identifiers
- ISRC
- QMBZ91433222
- Title
- La Cumparsita
- Artist
- Alfredo De Angelis
- CopyrightID (CopyrightChains transaction hash)
0x067f27987e5e3fe6bad0fdf1d5238893259ff3ce7fb6ca411176394a85cbb5a5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T14:28:24+00:00
- Bitcoin block
- 960117
- Canonical record hash
sha256:353063564ae02f3daf955041631fef05173dbbd638c1513aa3585757188e4ee7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91433222
- Bitcoin block existence check
- https://blockstream.info/api/block/960117