ISRC DEF058402304
Verified recording
DEF058402304 is “Piano Sonata No. 2 In B Flat Minor, Op. 35: 4. Finale (Presto) - 1984 Recording” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x8688340d9852c7defdae770d9719030dbfd8d68271c0331fb3c8174fe29f6650 and independently timestamped
in Bitcoin block 960459 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058402304.
Recording identifiers
- ISRC
- DEF058402304
- Title
- Piano Sonata No. 2 In B Flat Minor, Op. 35: 4. Finale (Presto) - 1984 Recording
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x8688340d9852c7defdae770d9719030dbfd8d68271c0331fb3c8174fe29f6650
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T20:22:46+00:00
- Bitcoin block
- 960459
- Canonical record hash
sha256:363fabc25bff6e62b63f8678066a3c70e04767f37d430cf58333ce055aff8051- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058402304
- Bitcoin block existence check
- https://blockstream.info/api/block/960459
Full record
Track page: Piano Sonata No. 2 In B Flat Minor, Op. 35: 4. Finale (Presto) - 1984 Recording · Machine-readable JSON-LD