ISRC DEF056400291
Verified recording
DEF056400291 is “Piano Sonata No. 23 in F Minor, Op. 57 "Appassionata": I. Allegro assai” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x388af80b6abab40c9d1ee6eab763e4d5852c6e6d6d85795a670a5fb6a3415503 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/DEF056400291.
Recording identifiers
- ISRC
- DEF056400291
- Title
- Piano Sonata No. 23 in F Minor, Op. 57 "Appassionata": I. Allegro assai
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x388af80b6abab40c9d1ee6eab763e4d5852c6e6d6d85795a670a5fb6a3415503
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:267b9b241270ea28481bedcf01e01d6a5b774a7903694d4cfc28b191bd502c56- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056400291
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Piano Sonata No. 23 in F Minor, Op. 57 "Appassionata": I. Allegro assai · Machine-readable JSON-LD