ISRC USHM19108607
Verified recording
USHM19108607 is “Piano Sonata No. 4: I. Allegro molto sostenuto” by Sergei Prokofiev,
registered on the CopyrightChains blockchain with CopyrightID
0x0ef7133d748f96f61652b13c730c12ffe0a8d81e9e6e5dd661e654e8bff2ad7c and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM19108607.
Recording identifiers
- ISRC
- USHM19108607
- Title
- Piano Sonata No. 4: I. Allegro molto sostenuto
- Artist
- Sergei Prokofiev
- CopyrightID (CopyrightChains transaction hash)
0x0ef7133d748f96f61652b13c730c12ffe0a8d81e9e6e5dd661e654e8bff2ad7c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:523fe817df8002d2d1587bc25b06bc315882754684bbb5de032ed1519485c0d1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM19108607
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Piano Sonata No. 4: I. Allegro molto sostenuto · Machine-readable JSON-LD