ISRC CALC41800245
Verified recording
CALC41800245 is “Violin Sonata No. 7 in C Minor, Op. 30, No. 2: II. Adagio cantabile” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0xa7602b109c142572218ef8b3d061720befd0fa60f307c3af24dd3a1d94eb2158 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC41800245.
Recording identifiers
- ISRC
- CALC41800245
- Title
- Violin Sonata No. 7 in C Minor, Op. 30, No. 2: II. Adagio cantabile
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0xa7602b109c142572218ef8b3d061720befd0fa60f307c3af24dd3a1d94eb2158
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:1bd9814e8351b0405eb21740dcf26dec6d97721d353488f444eabcd6920f76f6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC41800245
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Violin Sonata No. 7 in C Minor, Op. 30, No. 2: II. Adagio cantabile · Machine-readable JSON-LD