ISRC NLA507401164
Verified recording
NLA507401164 is “Concerto for Violin and Strings in B flat , Op. 12/6 , RV 361: 2. Largo” by Antonio Vivaldi,
registered on the CopyrightChains blockchain with CopyrightID
0xc633de908cf2bfaa9cfebfb9eb4875b2861b6799431865bc4a881a6f8c2a9200 and independently timestamped
in Bitcoin block 960368 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507401164.
Recording identifiers
- ISRC
- NLA507401164
- Title
- Concerto for Violin and Strings in B flat , Op. 12/6 , RV 361: 2. Largo
- Artist
- Antonio Vivaldi
- CopyrightID (CopyrightChains transaction hash)
0xc633de908cf2bfaa9cfebfb9eb4875b2861b6799431865bc4a881a6f8c2a9200
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:26:41+00:00
- Bitcoin block
- 960368
- Canonical record hash
sha256:95dd47209c4f7ab8dfb7a2c5830c154ad9fa4a84d8033da2f146f73b22a67272- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507401164
- Bitcoin block existence check
- https://blockstream.info/api/block/960368
Full record
Track page: Concerto for Violin and Strings in B flat , Op. 12/6 , RV 361: 2. Largo · Machine-readable JSON-LD