ISRC DEF059703262
Verified recording
DEF059703262 is “Piano Sonata No. 21 in C Major, Op. 53 - "Waldstein": II. Introduzione (Adagio molto) - Live” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x0aa7dbf0bf382ab64f44d7a5fa206c84ce18951d7325e9fcda1b291f04dd8930 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/DEF059703262.
Recording identifiers
- ISRC
- DEF059703262
- Title
- Piano Sonata No. 21 in C Major, Op. 53 - "Waldstein": II. Introduzione (Adagio molto) - Live
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x0aa7dbf0bf382ab64f44d7a5fa206c84ce18951d7325e9fcda1b291f04dd8930
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:7680d7a143822b3d6bfa81632e4d560db55c02596948321bdb0bf3b47331e890- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059703262
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Piano Sonata No. 21 in C Major, Op. 53 - "Waldstein": II. Introduzione (Adagio molto) - Live · Machine-readable JSON-LD