ISRC USBC19803374
Verified recording
USBC19803374 is “Ballade No. 2 in F Major, Op. 38” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xf41837bb7f613141a9bcf6b9672a27ff4a06bd57c678390629a56063729ec2d8 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/USBC19803374.
Recording identifiers
- ISRC
- USBC19803374
- Title
- Ballade No. 2 in F Major, Op. 38
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xf41837bb7f613141a9bcf6b9672a27ff4a06bd57c678390629a56063729ec2d8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:4e00262a77cc35a9f23cd27e0351e756bc74698fba94b0821307a75c10cec6f4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19803374
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Ballade No. 2 in F Major, Op. 38 · Machine-readable JSON-LD