ISRC FR50X0304804
Verified recording
FR50X0304804 is “Concerto pour deux violons & cordes in D Minor, BWV 1043: II. Largo ma non tanto” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0xac68b4e8413c7d0ca384722c0b0e049108eb0e8d546fc12250caaa52404bc3d5 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X0304804.
Recording identifiers
- ISRC
- FR50X0304804
- Title
- Concerto pour deux violons & cordes in D Minor, BWV 1043: II. Largo ma non tanto
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0xac68b4e8413c7d0ca384722c0b0e049108eb0e8d546fc12250caaa52404bc3d5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:ac6310bef90de7eb1117975fff4f1c51ee1ade982689cf5a8562949e5e2b1506- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X0304804
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Concerto pour deux violons & cordes in D Minor, BWV 1043: II. Largo ma non tanto · Machine-readable JSON-LD