ISRC DEF058300492
Verified recording
DEF058300492 is “Double Concerto for 2 Violins, Strings & Continuo in D Minor, BWV 1043: II. Largo ma non tanto” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0xf02361098f8a649d90bbbe2d059cdac3d810eac88f794911a86e70374e483a58 and independently timestamped
in Bitcoin block 956861 on 2026-07-06.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058300492.
Recording identifiers
- ISRC
- DEF058300492
- Title
- Double Concerto for 2 Violins, Strings & Continuo in D Minor, BWV 1043: II. Largo ma non tanto
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0xf02361098f8a649d90bbbe2d059cdac3d810eac88f794911a86e70374e483a58
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-06T01:57:57+00:00
- Bitcoin block
- 956861
- Canonical record hash
sha256:69718864ab525f807a63be84aa750196d014dd0c460ca826e0a47d8fcfe968dc- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058300492
- Bitcoin block existence check
- https://blockstream.info/api/block/956861
Full record
Track page: Double Concerto for 2 Violins, Strings & Continuo in D Minor, BWV 1043: II. Largo ma non tanto · Machine-readable JSON-LD