ISRC FRZ131321020
Verified recording
FRZ131321020 is “Violin Concerto in A Minor, RV 523: II. Largo” by Antonio Vivaldi,
registered on the CopyrightChains blockchain with CopyrightID
0x63763c0a8a4bf91882ed2a0448581c37d6f3bee7a3bc4432e52a871640949ebe and independently timestamped
in Bitcoin block 953513 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131321020.
Recording identifiers
- ISRC
- FRZ131321020
- Title
- Violin Concerto in A Minor, RV 523: II. Largo
- Artist
- Antonio Vivaldi
- CopyrightID (CopyrightChains transaction hash)
0x63763c0a8a4bf91882ed2a0448581c37d6f3bee7a3bc4432e52a871640949ebe
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:15930778a128651d6aedd76dfc34d1cfeab9c590acf946381dcae2289a08448c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131321020
- Bitcoin block existence check
- https://blockstream.info/api/block/953513
Full record
Track page: Violin Concerto in A Minor, RV 523: II. Largo · Machine-readable JSON-LD