ISRC USKO11300042
Verified recording
USKO11300042 is “Horn Concerto No. 3 in E-flat Major, K. 447: i. Allegro maestoso” by Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x57615e4134d55457d864066c95e94d65991d28d9b49d6cbd2fc2ece00149f2fc and independently timestamped
in Bitcoin block 960362 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USKO11300042.
Recording identifiers
- ISRC
- USKO11300042
- Title
- Horn Concerto No. 3 in E-flat Major, K. 447: i. Allegro maestoso
- Artist
- Mozart
- CopyrightID (CopyrightChains transaction hash)
0x57615e4134d55457d864066c95e94d65991d28d9b49d6cbd2fc2ece00149f2fc
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T06:58:00+00:00
- Bitcoin block
- 960362
- Canonical record hash
sha256:e990ca8c98bb5cca0d3f277b897e1488fe8c8771a44c0218c0c582557c5728e9- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USKO11300042
- Bitcoin block existence check
- https://blockstream.info/api/block/960362
Full record
Track page: Horn Concerto No. 3 in E-flat Major, K. 447: i. Allegro maestoso · Machine-readable JSON-LD