ISRC NLA507401117
Verified recording
NLA507401117 is “Nocturne No. 9 in B, Op. 32 No. 1” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xc7c8b8d8b0f9a62b1af422ce2910933fbc0a0d27930b359fdfb55f45392f8c42 and independently timestamped
in Bitcoin block 960145 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507401117.
Recording identifiers
- ISRC
- NLA507401117
- Title
- Nocturne No. 9 in B, Op. 32 No. 1
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xc7c8b8d8b0f9a62b1af422ce2910933fbc0a0d27930b359fdfb55f45392f8c42
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T21:13:37+00:00
- Bitcoin block
- 960145
- Canonical record hash
sha256:6ac513ca929dd5f7c73b2c68f1a4f5c713289d2b51513f93746ab73d6ff952d3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507401117
- Bitcoin block existence check
- https://blockstream.info/api/block/960145
Full record
Track page: Nocturne No. 9 in B, Op. 32 No. 1 · Machine-readable JSON-LD