ISRC USBC10508921
Verified recording
USBC10508921 is “Nocturne, Op. 9, No. 2 in E-Flat Major - 1990 Remastered” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xf627cbe3059819fde0f0249cfc2dee999813d4ba22f529ba43b5be2ee9cc0743 and independently timestamped
in Bitcoin block 960327 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10508921.
Recording identifiers
- ISRC
- USBC10508921
- Title
- Nocturne, Op. 9, No. 2 in E-Flat Major - 1990 Remastered
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xf627cbe3059819fde0f0249cfc2dee999813d4ba22f529ba43b5be2ee9cc0743
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T00:26:26+00:00
- Bitcoin block
- 960327
- Canonical record hash
sha256:3b844b10e8ffcaff29873a3ba96bf3ade8e7c5e3bb3fafa73da8d5e5fecc797c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10508921
- Bitcoin block existence check
- https://blockstream.info/api/block/960327
Full record
Track page: Nocturne, Op. 9, No. 2 in E-Flat Major - 1990 Remastered · Machine-readable JSON-LD