ISRC DEF058100024
Verified recording
DEF058100024 is “Piano Sonata No. 2 in B-Flat Minor, Op. 35: IV. Finale (Presto)” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x457ffbd757ca09c9af0506fda34807e9466edb3b0b1a13d3e003fe23bf0f0792 and independently timestamped
in Bitcoin block 960117 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058100024.
Recording identifiers
- ISRC
- DEF058100024
- Title
- Piano Sonata No. 2 in B-Flat Minor, Op. 35: IV. Finale (Presto)
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x457ffbd757ca09c9af0506fda34807e9466edb3b0b1a13d3e003fe23bf0f0792
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T14:28:24+00:00
- Bitcoin block
- 960117
- Canonical record hash
sha256:2b49e156427cdda05a03e35f6aec8f07add62fe4cdfa1e90420c10f1b0fccc14- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058100024
- Bitcoin block existence check
- https://blockstream.info/api/block/960117
Full record
Track page: Piano Sonata No. 2 in B-Flat Minor, Op. 35: IV. Finale (Presto) · Machine-readable JSON-LD