ISRC DEF057401604
Verified recording
DEF057401604 is “Piano Sonata No. 26 in E-Flat Major, Op. 81a "Les Adieux": I. Das Lebewohl. Adagio - Allegro” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x915d2a45218bb8b6f1c9379bccc39df55f529483c626fbd4bf57e585a2959021 and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057401604.
Recording identifiers
- ISRC
- DEF057401604
- Title
- Piano Sonata No. 26 in E-Flat Major, Op. 81a "Les Adieux": I. Das Lebewohl. Adagio - Allegro
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x915d2a45218bb8b6f1c9379bccc39df55f529483c626fbd4bf57e585a2959021
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:e0e8e411fd6263c9d60cf5c74e96da620893b70ec3b550d8636799869269c8e7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057401604
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: Piano Sonata No. 26 in E-Flat Major, Op. 81a "Les Adieux": I. Das Lebewohl. Adagio - Allegro · Machine-readable JSON-LD