ISRC USBC19803049
Verified recording
USBC19803049 is “Mazurkas, Op. 68: No. 3 in F Major” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xe44c58dbcdb51f5be9ebdc3f8c0c2b0fc119d09ee69716f53c93c8d406ce94b8 and independently timestamped
in Bitcoin block 960284 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19803049.
Recording identifiers
- ISRC
- USBC19803049
- Title
- Mazurkas, Op. 68: No. 3 in F Major
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xe44c58dbcdb51f5be9ebdc3f8c0c2b0fc119d09ee69716f53c93c8d406ce94b8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T17:23:26+00:00
- Bitcoin block
- 960284
- Canonical record hash
sha256:aa8e832669e99d6641440a980acf2e02d8f12c26ab4c055fff5142616cf92e47- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19803049
- Bitcoin block existence check
- https://blockstream.info/api/block/960284
Full record
Track page: Mazurkas, Op. 68: No. 3 in F Major · Machine-readable JSON-LD