ISRC NLA460912042
Verified recording
NLA460912042 is “Concerto for 2 Violins in B-Flat Major, Op. 9 No. 9, RV 530: II. Largo e spiccato” by Antonio Vivaldi,
registered on the CopyrightChains blockchain with CopyrightID
0x77c539421ab69f35e796e9e98ed325c62ee952263c384f3348936d796e0a020e 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/NLA460912042.
Recording identifiers
- ISRC
- NLA460912042
- Title
- Concerto for 2 Violins in B-Flat Major, Op. 9 No. 9, RV 530: II. Largo e spiccato
- Artist
- Antonio Vivaldi
- CopyrightID (CopyrightChains transaction hash)
0x77c539421ab69f35e796e9e98ed325c62ee952263c384f3348936d796e0a020e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:b559972d46954034d42f3ab896c9f1fe227a454b0dcec16f637b904d40b72d3b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA460912042
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Concerto for 2 Violins in B-Flat Major, Op. 9 No. 9, RV 530: II. Largo e spiccato · Machine-readable JSON-LD