ISRC CALC41701115
Verified recording
CALC41701115 is “Sonata for Two Violins in A Major, Op. 3 No. 2: II. Sarabande - Largo” by Jean-Marie Leclair,
registered on the CopyrightChains blockchain with CopyrightID
0x90ee60fa5fc9d9b580cd5b60c93048d0f1cadbe7007bfa737abbe4e5406383a9 and independently timestamped
in Bitcoin block 960459 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC41701115.
Recording identifiers
- ISRC
- CALC41701115
- Title
- Sonata for Two Violins in A Major, Op. 3 No. 2: II. Sarabande - Largo
- Artist
- Jean-Marie Leclair
- CopyrightID (CopyrightChains transaction hash)
0x90ee60fa5fc9d9b580cd5b60c93048d0f1cadbe7007bfa737abbe4e5406383a9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T20:22:46+00:00
- Bitcoin block
- 960459
- Canonical record hash
sha256:96909887860e3a9102ecbdaf7ea85c22282c7bc5a96626ffea5a3debf5daf49e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC41701115
- Bitcoin block existence check
- https://blockstream.info/api/block/960459
Full record
Track page: Sonata for Two Violins in A Major, Op. 3 No. 2: II. Sarabande - Largo · Machine-readable JSON-LD