ISRC USSM11203189
Verified recording
USSM11203189 is “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
0x8e45b6fc9eabc6338327bf2f457962ed2620be767b9eb3d32ef98d806de51327 and independently timestamped
in Bitcoin block 953520 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11203189.
Recording identifiers
- ISRC
- USSM11203189
- Title
- Piano Sonata No. 2 in B-Flat Minor, Op. 35 "Funeral March": III. Marche funèbre. Lento
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x8e45b6fc9eabc6338327bf2f457962ed2620be767b9eb3d32ef98d806de51327
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T13:32:09+00:00
- Bitcoin block
- 953520
- Canonical record hash
sha256:b367c1ec24d4a6779b08313deafe6fb639ca4fc99b06885f21d107d690bd3b75- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11203189
- Bitcoin block existence check
- https://blockstream.info/api/block/953520
Full record
Track page: Piano Sonata No. 2 in B-Flat Minor, Op. 35 "Funeral March": III. Marche funèbre. Lento · Machine-readable JSON-LD