ISRC USL7S0710244
Verified recording
USL7S0710244 is “Nocturne No. 20 in C-Sharp Minor, Op. posth (arr. N. Milstein)” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x15e9d28cfee71d9424fa390d855cfc0913f79218b8f176088af38069e03c5285 and independently timestamped
in Bitcoin block 960108 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL7S0710244.
Recording identifiers
- ISRC
- USL7S0710244
- Title
- Nocturne No. 20 in C-Sharp Minor, Op. posth (arr. N. Milstein)
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x15e9d28cfee71d9424fa390d855cfc0913f79218b8f176088af38069e03c5285
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T13:09:35+00:00
- Bitcoin block
- 960108
- Canonical record hash
sha256:1299a91bad350d966e6604b06f2de6a877a569afa5ef10faf4ffe93c6bf43ebd- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL7S0710244
- Bitcoin block existence check
- https://blockstream.info/api/block/960108
Full record
Track page: Nocturne No. 20 in C-Sharp Minor, Op. posth (arr. N. Milstein) · Machine-readable JSON-LD