ISRC CALC42589406
Verified recording
CALC42589406 is “Concerto for Two Violins in D Minor, BWV 1043: III. Allegro” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x8a2bde1f8710e57ce1987dcc5e52ef864e122a1d22dff9205c51b15c7ea3b401 and independently timestamped
in Bitcoin block 960209 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC42589406.
Recording identifiers
- ISRC
- CALC42589406
- Title
- Concerto for Two Violins in D Minor, BWV 1043: III. Allegro
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0x8a2bde1f8710e57ce1987dcc5e52ef864e122a1d22dff9205c51b15c7ea3b401
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T05:15:54+00:00
- Bitcoin block
- 960209
- Canonical record hash
sha256:565c596740fea6c4daca0d79776538c878c5e4e15cf68351a3adbffeb25986da- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC42589406
- Bitcoin block existence check
- https://blockstream.info/api/block/960209
Full record
Track page: Concerto for Two Violins in D Minor, BWV 1043: III. Allegro · Machine-readable JSON-LD