ISRC DEF059703263
Verified recording
DEF059703263 is “Piano Sonata No. 21 in C Major, Op. 53 - "Waldstein": III. Rondo (Allegretto moderato - Prestissimo) - Live” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0xb9b9be898807ec2ff60039c012c29c515e4d94097de7afd6b298998277315bcb 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/DEF059703263.
Recording identifiers
- ISRC
- DEF059703263
- Title
- Piano Sonata No. 21 in C Major, Op. 53 - "Waldstein": III. Rondo (Allegretto moderato - Prestissimo) - Live
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0xb9b9be898807ec2ff60039c012c29c515e4d94097de7afd6b298998277315bcb
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:4cfe0738c9a6277e8da6b73670b06cd057de7d1d19a5a6cd26e1ece5f1d0c835- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059703263
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Piano Sonata No. 21 in C Major, Op. 53 - "Waldstein": III. Rondo (Allegretto moderato - Prestissimo) - Live · Machine-readable JSON-LD