ISRC DEF057200452
Verified recording
DEF057200452 is “The Four Seasons, Spring, Violin Concerto in E Major, Op. 8/1, RV 269: II. Largo e pianissimo sempre” by Antonio Vivaldi,
registered on the CopyrightChains blockchain with CopyrightID
0xd4d66d3e9840b24a540967da7e0bfdcae0191a0e72feeaf782e9eba084bf19d9 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057200452.
Recording identifiers
- ISRC
- DEF057200452
- Title
- The Four Seasons, Spring, Violin Concerto in E Major, Op. 8/1, RV 269: II. Largo e pianissimo sempre
- Artist
- Antonio Vivaldi
- CopyrightID (CopyrightChains transaction hash)
0xd4d66d3e9840b24a540967da7e0bfdcae0191a0e72feeaf782e9eba084bf19d9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:b03c44505c54f45b06f48e002f016b6e34fa951290e965809f489168783871df- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057200452
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: The Four Seasons, Spring, Violin Concerto in E Major, Op. 8/1, RV 269: II. Largo e pianissimo sempre · Machine-readable JSON-LD