ISRC DEF059103043
Verified recording
DEF059103043 is “Piano Sonata No. 2 in B-Flat Minor, Op. 35: III. Marche funèbre (Lento)” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x0e96d47e859ed1b42da3462b641a7074fa6c387071fa8ab9ff4c73f28f562010 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059103043.
Recording identifiers
- ISRC
- DEF059103043
- Title
- Piano Sonata No. 2 in B-Flat Minor, Op. 35: III. Marche funèbre (Lento)
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x0e96d47e859ed1b42da3462b641a7074fa6c387071fa8ab9ff4c73f28f562010
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:83bc76f681a4ad4635cf9eb4c0932f1e9222d5f202e204b52e58d6c303576af8- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059103043
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Piano Sonata No. 2 in B-Flat Minor, Op. 35: III. Marche funèbre (Lento) · Machine-readable JSON-LD