ISRC USBC19300494
Verified recording
USBC19300494 is “Nocturne No. 1 in C-Sharp Minor, Op. 27” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xaf5ac564ae809dbb1634bf1b5819ca707b84997520a24757f3df80cb37b2b63d and independently timestamped
in Bitcoin block 960273 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19300494.
Recording identifiers
- ISRC
- USBC19300494
- Title
- Nocturne No. 1 in C-Sharp Minor, Op. 27
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xaf5ac564ae809dbb1634bf1b5819ca707b84997520a24757f3df80cb37b2b63d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T15:42:38+00:00
- Bitcoin block
- 960273
- Canonical record hash
sha256:f284e11277b6f49557638a3870526844e9da6496a054060dfcc94ec7f962a1ab- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19300494
- Bitcoin block existence check
- https://blockstream.info/api/block/960273
Full record
Track page: Nocturne No. 1 in C-Sharp Minor, Op. 27 · Machine-readable JSON-LD