ISRC USB8U1025255
Verified recording
USB8U1025255 is “Concerto for 2 Violins in D Minor, BWV 1043: II. Largo ma non tanto” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0xc91107e2bafa642cee43301f786aa2a2fdedd632a2548880489ec5dbac2abe1d 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/USB8U1025255.
Recording identifiers
- ISRC
- USB8U1025255
- Title
- Concerto for 2 Violins in D Minor, BWV 1043: II. Largo ma non tanto
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0xc91107e2bafa642cee43301f786aa2a2fdedd632a2548880489ec5dbac2abe1d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:30f3e15f085dd61db0f057b912f546b893eef1baf99823008a2e86bc6c95acaa- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1025255
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Concerto for 2 Violins in D Minor, BWV 1043: II. Largo ma non tanto · Machine-readable JSON-LD