ISRC USBC19705227
Verified recording
USBC19705227 is “24 Preludes, Op. 28: Prelude No. 21 in B-flat” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x39bcd0ff893c095f71976df8865b811181e417230cc06c212e0adad3e85beb1c and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19705227.
Recording identifiers
- ISRC
- USBC19705227
- Title
- 24 Preludes, Op. 28: Prelude No. 21 in B-flat
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x39bcd0ff893c095f71976df8865b811181e417230cc06c212e0adad3e85beb1c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:7932aecbffbb63bce2167615db2a6e88e3821a1c0ab4bfa1a00c55e879b12dd5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19705227
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: 24 Preludes, Op. 28: Prelude No. 21 in B-flat · Machine-readable JSON-LD