ISRC FR50X1219327
Verified recording
FR50X1219327 is “Concerto for Two Violins in A Minor, RV 522, Op. 3 No. 8: II. Larghetto e spiritoso” by Antonio Vivaldi,
registered on the CopyrightChains blockchain with CopyrightID
0x04a59831b498b0be607aca4bf8bc81e2afdbddff2a928bb1cd11f145f346c480 and independently timestamped
in Bitcoin block 957122 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1219327.
Recording identifiers
- ISRC
- FR50X1219327
- Title
- Concerto for Two Violins in A Minor, RV 522, Op. 3 No. 8: II. Larghetto e spiritoso
- Artist
- Antonio Vivaldi
- CopyrightID (CopyrightChains transaction hash)
0x04a59831b498b0be607aca4bf8bc81e2afdbddff2a928bb1cd11f145f346c480
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:39:04+00:00
- Bitcoin block
- 957122
- Canonical record hash
sha256:df7e9b9e2f7817dbf72d70760b116b56019260da977dac110c9668c882d3f1ce- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1219327
- Bitcoin block existence check
- https://blockstream.info/api/block/957122
Full record
Track page: Concerto for Two Violins in A Minor, RV 522, Op. 3 No. 8: II. Larghetto e spiritoso · Machine-readable JSON-LD