ISRC DEF057209044
Verified recording
DEF057209044 is “Concerto for 4 Violins in E Minor, Op. 3/4, RV 550 (L'estro armonico No. 4): IV. Allegro” by Antonio Vivaldi,
registered on the CopyrightChains blockchain with CopyrightID
0xa9d9cd3b3f9d6fb05a47de017242436323e7af0c3883532165009228e0a2c85a and independently timestamped
in Bitcoin block 957073 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057209044.
Recording identifiers
- ISRC
- DEF057209044
- Title
- Concerto for 4 Violins in E Minor, Op. 3/4, RV 550 (L'estro armonico No. 4): IV. Allegro
- Artist
- Antonio Vivaldi
- CopyrightID (CopyrightChains transaction hash)
0xa9d9cd3b3f9d6fb05a47de017242436323e7af0c3883532165009228e0a2c85a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T18:39:05+00:00
- Bitcoin block
- 957073
- Canonical record hash
sha256:dbd60cb4d2b149b9d894172daa602a77e179d22cca002622973fe7904bb5d7ef- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057209044
- Bitcoin block existence check
- https://blockstream.info/api/block/957073
Full record
Track page: Concerto for 4 Violins in E Minor, Op. 3/4, RV 550 (L'estro armonico No. 4): IV. Allegro · Machine-readable JSON-LD