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