ISRC NLHK11500019
Verified recording
NLHK11500019 is “Nocturne No. 2 in E-Flat Major, Op. 9” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x590ec12338249d371217cbcf2081f49c3c282d8a770b5a4c89ad562015b31aa5 and independently timestamped
in Bitcoin block 957073 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHK11500019.
Recording identifiers
- ISRC
- NLHK11500019
- Title
- Nocturne No. 2 in E-Flat Major, Op. 9
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x590ec12338249d371217cbcf2081f49c3c282d8a770b5a4c89ad562015b31aa5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T18:39:05+00:00
- Bitcoin block
- 957073
- Canonical record hash
sha256:c59c1e93e1e9c58dad412a369890e7e9fd54d3611cdc192d0ddc540a13108b07- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHK11500019
- Bitcoin block existence check
- https://blockstream.info/api/block/957073
Full record
Track page: Nocturne No. 2 in E-Flat Major, Op. 9 · Machine-readable JSON-LD