ISRC USBC19901794
Verified recording
USBC19901794 is “24 Preludes, Op. 28: Prelude No. 20 in C Minor” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xd71232e915b62afe11d92488600f6d1d81a92306b3b29b3da7923e0924c30786 and independently timestamped
in Bitcoin block 960099 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19901794.
Recording identifiers
- ISRC
- USBC19901794
- Title
- 24 Preludes, Op. 28: Prelude No. 20 in C Minor
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xd71232e915b62afe11d92488600f6d1d81a92306b3b29b3da7923e0924c30786
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T11:30:20+00:00
- Bitcoin block
- 960099
- Canonical record hash
sha256:f1e9d467713860a920549ddd52837cbe1696d8ded6819352403dd02c9a495dc1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19901794
- Bitcoin block existence check
- https://blockstream.info/api/block/960099
Full record
Track page: 24 Preludes, Op. 28: Prelude No. 20 in C Minor · Machine-readable JSON-LD