ISRC USHM19108703
Verified recording
USHM19108703 is “Piano Sonata No. 5: III. Un poco allegretto” by Sergei Prokofiev,
registered on the CopyrightChains blockchain with CopyrightID
0xe30ceaa473495fdcb58f951567bfdca82c2f942f5dd2e24dd88283f2b7234bb8 and independently timestamped
in Bitcoin block 960494 on 2026-08-01.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM19108703.
Recording identifiers
- ISRC
- USHM19108703
- Title
- Piano Sonata No. 5: III. Un poco allegretto
- Artist
- Sergei Prokofiev
- CopyrightID (CopyrightChains transaction hash)
0xe30ceaa473495fdcb58f951567bfdca82c2f942f5dd2e24dd88283f2b7234bb8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T01:44:32+00:00
- Bitcoin block
- 960494
- Canonical record hash
sha256:9017f30c80d9009bc1e660a06547f5def7f5040df3ef3f6f3122586ad0bf3c42- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM19108703
- Bitcoin block existence check
- https://blockstream.info/api/block/960494
Full record
Track page: Piano Sonata No. 5: III. Un poco allegretto · Machine-readable JSON-LD