ISRC USB8U1700368
Verified recording
USB8U1700368 is “Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": I. Allegro con brio” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x78d81fa00440ceda9f053b818bdf5c1542289614c0734f5bb96d1160bf149ba0 and independently timestamped
in Bitcoin block 960418 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1700368.
Recording identifiers
- ISRC
- USB8U1700368
- Title
- Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": I. Allegro con brio
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x78d81fa00440ceda9f053b818bdf5c1542289614c0734f5bb96d1160bf149ba0
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T15:20:15+00:00
- Bitcoin block
- 960418
- Canonical record hash
sha256:9c9842ed2cbb6056eaf05fac9476c906fec4150fa72df96c4751fc140ea16318- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1700368
- Bitcoin block existence check
- https://blockstream.info/api/block/960418
Full record
Track page: Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": I. Allegro con brio · Machine-readable JSON-LD