ISRC DEF056400271
Verified recording
DEF056400271 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
0x3a7bc9df6124d1585384e7d6f4961c594cc010786a30dae0fa96f4553a03a83c and independently timestamped
in Bitcoin block 960125 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056400271.
Recording identifiers
- ISRC
- DEF056400271
- Title
- Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": I. Allegro con brio
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x3a7bc9df6124d1585384e7d6f4961c594cc010786a30dae0fa96f4553a03a83c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T15:38:18+00:00
- Bitcoin block
- 960125
- Canonical record hash
sha256:01cee2222193c41b3d81ebb0f42f4e88e754e140844af4095fecb0b6112b5006- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056400271
- Bitcoin block existence check
- https://blockstream.info/api/block/960125
Full record
Track page: Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": I. Allegro con brio · Machine-readable JSON-LD