ISRC NLA508309736
Verified recording
NLA508309736 is “12 Concertos, Op. 3 - "L'estro armonico" / Concerto No. 11 in D minor for 2 Violins and Cello, RV 565: 2. Largo e Spiccato” by Antonio Vivaldi,
registered on the CopyrightChains blockchain with CopyrightID
0xd6345efd39c0c0ede809f9096a66f67315fbad4604ebaaabc7affbd9536ccd5d 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/NLA508309736.
Recording identifiers
- ISRC
- NLA508309736
- Title
- 12 Concertos, Op. 3 - "L'estro armonico" / Concerto No. 11 in D minor for 2 Violins and Cello, RV 565: 2. Largo e Spiccato
- Artist
- Antonio Vivaldi
- CopyrightID (CopyrightChains transaction hash)
0xd6345efd39c0c0ede809f9096a66f67315fbad4604ebaaabc7affbd9536ccd5d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:50972a60ce5f05ba22406d61ab27071819d40a02dfda5964166ec66182ce16b4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508309736
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: 12 Concertos, Op. 3 - "L'estro armonico" / Concerto No. 11 in D minor for 2 Violins and Cello, RV 565: 2. Largo e Spiccato · Machine-readable JSON-LD