ISRC USBC19901795
Verified recording
USBC19901795 is “24 Preludes, Op. 28: Prelude No. 21 in B-Flat Major” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x23c747a8c91954d52b31a6118aedff8efae87f1ef3d7b1db2d175118df26f472 and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19901795.
Recording identifiers
- ISRC
- USBC19901795
- Title
- 24 Preludes, Op. 28: Prelude No. 21 in B-Flat Major
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x23c747a8c91954d52b31a6118aedff8efae87f1ef3d7b1db2d175118df26f472
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:ed0965c7d5c48134e76cf9275669bbe5e55dd702216e200761430e2df2c3e890- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19901795
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: 24 Preludes, Op. 28: Prelude No. 21 in B-Flat Major · Machine-readable JSON-LD