ISRC DEF056300513
Verified recording
DEF056300513 is “Piano Sonata No. 2 In B Flat Minor, Op. 35: 3. Marche funèbre (Lento)” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x297c75828f534ce43e851fef5f70ada0e812eced6821fbf0a6d92408c287496f and independently timestamped
in Bitcoin block 960258 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056300513.
Recording identifiers
- ISRC
- DEF056300513
- Title
- Piano Sonata No. 2 In B Flat Minor, Op. 35: 3. Marche funèbre (Lento)
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x297c75828f534ce43e851fef5f70ada0e812eced6821fbf0a6d92408c287496f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T12:45:34+00:00
- Bitcoin block
- 960258
- Canonical record hash
sha256:7006a91c870184691f51dd9ddac6c4a9ab2c6086d479155b7fe5110245d2f401- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056300513
- Bitcoin block existence check
- https://blockstream.info/api/block/960258
Full record
Track page: Piano Sonata No. 2 In B Flat Minor, Op. 35: 3. Marche funèbre (Lento) · Machine-readable JSON-LD