ISRC USFKZ0611019
Verified recording
USFKZ0611019 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
0xa7162a325d5b465088ba6f060a3f17e4ada9fa9ae209b27a0403f85b0cefecfb and independently timestamped
in Bitcoin block 960284 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFKZ0611019.
Recording identifiers
- ISRC
- USFKZ0611019
- Title
- Concerto for 2 Violins in D Minor, BWV 1043: II. Largo ma non tanto
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0xa7162a325d5b465088ba6f060a3f17e4ada9fa9ae209b27a0403f85b0cefecfb
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T17:23:26+00:00
- Bitcoin block
- 960284
- Canonical record hash
sha256:2b2ba9f193103f2f5af3bade5a15369f2f1e273a3b22f41cdada50466022d41f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFKZ0611019
- Bitcoin block existence check
- https://blockstream.info/api/block/960284
Full record
Track page: Concerto for 2 Violins in D Minor, BWV 1043: II. Largo ma non tanto · Machine-readable JSON-LD