ISRC DEF057209032
Verified recording
DEF057209032 is “Concerto for 4 Violins and Cello in D Major, Op. 3/1, RV 549 (L'estro armonico No. 1): II. Largo e spiccato” by Antonio Vivaldi,
registered on the CopyrightChains blockchain with CopyrightID
0xfa0d872fc1a7fbb7db16e7541e242cf67d5d86f465e8f735e406027897e885d3 and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057209032.
Recording identifiers
- ISRC
- DEF057209032
- Title
- Concerto for 4 Violins and Cello in D Major, Op. 3/1, RV 549 (L'estro armonico No. 1): II. Largo e spiccato
- Artist
- Antonio Vivaldi
- CopyrightID (CopyrightChains transaction hash)
0xfa0d872fc1a7fbb7db16e7541e242cf67d5d86f465e8f735e406027897e885d3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:055ea76c7a640d00e19b3a330a52bf107bce8cc984b21907f158fea9da4a9b2e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057209032
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: Concerto for 4 Violins and Cello in D Major, Op. 3/1, RV 549 (L'estro armonico No. 1): II. Largo e spiccato · Machine-readable JSON-LD