ISRC DEF056400273
Verified recording
DEF056400273 is “Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": III. Rondo. Allegretto moderato – Prestissimo” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x02c37c321462fef795c72776d7e2e18841ad828642608288d221827cde398152 and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056400273.
Recording identifiers
- ISRC
- DEF056400273
- Title
- Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": III. Rondo. Allegretto moderato – Prestissimo
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x02c37c321462fef795c72776d7e2e18841ad828642608288d221827cde398152
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:3d0c8cef5ec6dd20d7192676af7b4d7219b3d4df2b5777b57e88e1e411cf8b5f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056400273
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": III. Rondo. Allegretto moderato – Prestissimo · Machine-readable JSON-LD