ISRC USBC19803376
Verified recording
USBC19803376 is “Ballade No. 4, Op. 52” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x33c922a46bbf9c555cce7731a8e53dbe3e238df2fd6fb605de4a07af0821d2f3 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19803376.
Recording identifiers
- ISRC
- USBC19803376
- Title
- Ballade No. 4, Op. 52
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x33c922a46bbf9c555cce7731a8e53dbe3e238df2fd6fb605de4a07af0821d2f3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:7afae9d23d83de398dc575333c37ece80e7891ff600ab2ea01af7a4feb8acfce- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19803376
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Ballade No. 4, Op. 52 · Machine-readable JSON-LD