ISRC DEF053602273
Verified recording
DEF053602273 is “Cello Sonata No. 3 in A Major, Op. 69: III. Adagio cantabile - Allegro vivace” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0xb99c4bec3aa3ff41de803fd94186eb34d9ae06e7da283db4f2d213dd95e945e2 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/DEF053602273.
Recording identifiers
- ISRC
- DEF053602273
- Title
- Cello Sonata No. 3 in A Major, Op. 69: III. Adagio cantabile - Allegro vivace
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0xb99c4bec3aa3ff41de803fd94186eb34d9ae06e7da283db4f2d213dd95e945e2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:898b66b9133e17bb9e05e893e7a9c1de2f742cc6db1f3cf4d5a3cec875b4ed15- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF053602273
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Cello Sonata No. 3 in A Major, Op. 69: III. Adagio cantabile - Allegro vivace · Machine-readable JSON-LD