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