ISRC FRZ208305300
Verified recording
FRZ208305300 is “Ballade No. 4 in F Minor, Op. 52” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x3dc9799a8d95c06ad863b93c2491bd03fc8e3e471f465a2c4aca901ac04481f4 and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208305300.
Recording identifiers
- ISRC
- FRZ208305300
- Title
- Ballade No. 4 in F Minor, Op. 52
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x3dc9799a8d95c06ad863b93c2491bd03fc8e3e471f465a2c4aca901ac04481f4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:31166f31bd00621e5bed4374ef2d72552cf6bf8f66a1b0fc3d4388c95be382b2- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208305300
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: Ballade No. 4 in F Minor, Op. 52 · Machine-readable JSON-LD