ISRC DEN961101260
Verified recording
DEN961101260 is “Mazurka No. 20 in D-Flat Major, Op. 30 No. 3. Allegro non troppo” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x4d207e8994dcfb114fe2827883533fc54b9b1d6c138537f1e8f50e78e7e94788 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/DEN961101260.
Recording identifiers
- ISRC
- DEN961101260
- Title
- Mazurka No. 20 in D-Flat Major, Op. 30 No. 3. Allegro non troppo
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x4d207e8994dcfb114fe2827883533fc54b9b1d6c138537f1e8f50e78e7e94788
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:784f161ade7195721c79e8e31b9a881102ea75a146032523df18171664560cc7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961101260
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Mazurka No. 20 in D-Flat Major, Op. 30 No. 3. Allegro non troppo · Machine-readable JSON-LD