ISRC CALC41800247
Verified recording
CALC41800247 is “Violin Sonata No. 7 in C Minor, Op. 30, No. 2: IV. Finale: Allegro - Presto” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0x6f4f1531a328bdc32bd21373eae8ed5fe1db013436e5f58a896de34c0e0bfc94 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/CALC41800247.
Recording identifiers
- ISRC
- CALC41800247
- Title
- Violin Sonata No. 7 in C Minor, Op. 30, No. 2: IV. Finale: Allegro - Presto
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0x6f4f1531a328bdc32bd21373eae8ed5fe1db013436e5f58a896de34c0e0bfc94
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:53e620246ddf2d9a0ca4bb6ae14c2fab05e5867a33c805547e4fe4bcb811ebbf- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC41800247
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Violin Sonata No. 7 in C Minor, Op. 30, No. 2: IV. Finale: Allegro - Presto · Machine-readable JSON-LD