ISRC USBC19901800
Verified recording
USBC19901800 is “Piano Sonata No. 2 in B-Flat Minor, Op. 35: 3. Marche funèbre” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x2e5910af4bcafe8afabb64f7cd39ca66f2c2eb1762f11fc4bead35f636f8b484 and independently timestamped
in Bitcoin block 959105 on 2026-07-22.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19901800.
Recording identifiers
- ISRC
- USBC19901800
- Title
- Piano Sonata No. 2 in B-Flat Minor, Op. 35: 3. Marche funèbre
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x2e5910af4bcafe8afabb64f7cd39ca66f2c2eb1762f11fc4bead35f636f8b484
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-22T06:33:30+00:00
- Bitcoin block
- 959105
- Canonical record hash
sha256:f6d50570e44c66209ed3826ea20bbc264651f99e5a962b864bfecbc3dfa055d9- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19901800
- Bitcoin block existence check
- https://blockstream.info/api/block/959105
Full record
Track page: Piano Sonata No. 2 in B-Flat Minor, Op. 35: 3. Marche funèbre · Machine-readable JSON-LD