ISRC NLA507700440
Verified recording
NLA507700440 is “Nocturne No. 19 in E minor, Op. 72 No. 1” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xbce9fcc42ff7693f574aa76ee7a01058c278ca9fa23be6df92e2c7df118d3eeb and independently timestamped
in Bitcoin block 960354 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507700440.
Recording identifiers
- ISRC
- NLA507700440
- Title
- Nocturne No. 19 in E minor, Op. 72 No. 1
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xbce9fcc42ff7693f574aa76ee7a01058c278ca9fa23be6df92e2c7df118d3eeb
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T05:48:18+00:00
- Bitcoin block
- 960354
- Canonical record hash
sha256:36edeb1af174570d94c26607624c5efa7fe93a3dde0ab084039ed5c554af3e34- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507700440
- Bitcoin block existence check
- https://blockstream.info/api/block/960354
Full record
Track page: Nocturne No. 19 in E minor, Op. 72 No. 1 · Machine-readable JSON-LD