ISRC USTE10302070
Verified recording
USTE10302070 is “The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": II. Largo” by Antonio Vivaldi,
registered on the CopyrightChains blockchain with CopyrightID
0x3e263e237a3bbe7ea3afad36855ec748d2593eb9fbe6745c8a992610f6c0e9dd 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/USTE10302070.
Recording identifiers
- ISRC
- USTE10302070
- Title
- The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": II. Largo
- Artist
- Antonio Vivaldi
- CopyrightID (CopyrightChains transaction hash)
0x3e263e237a3bbe7ea3afad36855ec748d2593eb9fbe6745c8a992610f6c0e9dd
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:227bde4d5e5fe63bbf7e772f3393ee9cc9cf4a028a342621c9a22fcbe0cb56fc- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10302070
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": II. Largo · Machine-readable JSON-LD