ISRC FRZ208408203
Verified recording
FRZ208408203 is “Chopin: Piano Sonata No. 2 in B-Flat Minor, Op. 35 "Funeral March": III. Marche funèbre. Lento” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xadd72fc9ecbf20ed1fbe42a1d399e353eb5ab1b317505d65e846571dccf9a91c and independently timestamped
in Bitcoin block 957048 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208408203.
Recording identifiers
- ISRC
- FRZ208408203
- Title
- Chopin: Piano Sonata No. 2 in B-Flat Minor, Op. 35 "Funeral March": III. Marche funèbre. Lento
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xadd72fc9ecbf20ed1fbe42a1d399e353eb5ab1b317505d65e846571dccf9a91c
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T14:18:56+00:00
- Bitcoin block
- 957048
- Canonical record hash
sha256:fa3d3757341ed4e88fd9db8b83c2c5066385e15f1ff2fc0afd07bb8f27c9058f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208408203
- Bitcoin block existence check
- https://blockstream.info/api/block/957048
Full record
Track page: Chopin: Piano Sonata No. 2 in B-Flat Minor, Op. 35 "Funeral March": III. Marche funèbre. Lento · Machine-readable JSON-LD