ISRC NLA509318402
Verified recording
NLA509318402 is “Concerto for 2 Trumpets in C Major, RV 537 (Rev. Malipiero): II. Largo” by Antonio Vivaldi,
registered on the CopyrightChains blockchain with CopyrightID
0x452227469ee7d6efff0dfadf93b55b9e109e88d954b771e60bbe3f6f7100d2f2 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/NLA509318402.
Recording identifiers
- ISRC
- NLA509318402
- Title
- Concerto for 2 Trumpets in C Major, RV 537 (Rev. Malipiero): II. Largo
- Artist
- Antonio Vivaldi
- CopyrightID (CopyrightChains transaction hash)
0x452227469ee7d6efff0dfadf93b55b9e109e88d954b771e60bbe3f6f7100d2f2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:a7ae0ce01a665ac827f8b85317b81fcedadfd15ca3c8cd04256b785a9730fce4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509318402
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: Concerto for 2 Trumpets in C Major, RV 537 (Rev. Malipiero): II. Largo · Machine-readable JSON-LD