ISRC USBC19803375
Verified recording
USBC19803375 is “Ballade No. 3, Op. 47” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x7bb3465cb1d8e3dfb77aa9be7f9200910cc28caf2a6d967d4deb319d0c310880 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19803375.
Recording identifiers
- ISRC
- USBC19803375
- Title
- Ballade No. 3, Op. 47
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x7bb3465cb1d8e3dfb77aa9be7f9200910cc28caf2a6d967d4deb319d0c310880
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:74eabe33f7014914ec8d2e08fc76264e3a6a84dfe43e1df116532e414e3da06d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19803375
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Ballade No. 3, Op. 47 · Machine-readable JSON-LD