ISRC NLA506400366
Verified recording
NLA506400366 is “12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 9 in B flat major: 2. Largo e spiccato” by Antonio Vivaldi,
registered on the CopyrightChains blockchain with CopyrightID
0x8e94d58f6dd117f2726b716557e2ea74fbd59a23d2acef649f6ce5d4ffaa0fbe and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506400366.
Recording identifiers
- ISRC
- NLA506400366
- Title
- 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 9 in B flat major: 2. Largo e spiccato
- Artist
- Antonio Vivaldi
- CopyrightID (CopyrightChains transaction hash)
0x8e94d58f6dd117f2726b716557e2ea74fbd59a23d2acef649f6ce5d4ffaa0fbe
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:65ab30969aeb48a188d243899243f8f0e6b0a6213acb8c1ec6f550e47f123bc1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506400366
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 9 in B flat major: 2. Largo e spiccato · Machine-readable JSON-LD