ISRC QZNWS2404044
Verified recording
QZNWS2404044 is “Étude no. 4” by Francisco Tárrega,
registered on the CopyrightChains blockchain with CopyrightID
0xd76473fcf7c91194cf2631530ffce6e170e0dd18a1ea9c336d0396619390da49 and independently timestamped
in Bitcoin block 960368 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWS2404044.
Recording identifiers
- ISRC
- QZNWS2404044
- Title
- Étude no. 4
- Artist
- Francisco Tárrega
- CopyrightID (CopyrightChains transaction hash)
0xd76473fcf7c91194cf2631530ffce6e170e0dd18a1ea9c336d0396619390da49
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:26:41+00:00
- Bitcoin block
- 960368
- Canonical record hash
sha256:77ea80c3c0ff486fd7e0acfd2fc89a95cab5f17a620e6a478b2d0c69236a92ac- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWS2404044
- Bitcoin block existence check
- https://blockstream.info/api/block/960368