ISRC FRZ208308802
Verified recording
FRZ208308802 is “Vivaldi: Concerto for Four Violins in B-Flat Major, RV 553: II. Largo” by Antonio Vivaldi,
registered on the CopyrightChains blockchain with CopyrightID
0x9518eb1513d71cab35a76e4eab0d49a900d5c12f262af8636682254ad99c8e4c and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208308802.
Recording identifiers
- ISRC
- FRZ208308802
- Title
- Vivaldi: Concerto for Four Violins in B-Flat Major, RV 553: II. Largo
- Artist
- Antonio Vivaldi
- CopyrightID (CopyrightChains transaction hash)
0x9518eb1513d71cab35a76e4eab0d49a900d5c12f262af8636682254ad99c8e4c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:8e1dc9adbe41027b21dbeaa6892d553c24f98902cb9bc042efe28d3e5efaa916- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208308802
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Vivaldi: Concerto for Four Violins in B-Flat Major, RV 553: II. Largo · Machine-readable JSON-LD