ISRC DEN961801611
Verified recording
DEN961801611 is “Mazurka No. 33 in B Major, Op. 56 No. 1. Allegro non tanto” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xb8723ec92a8d407b769f50e4e62ae3e8e46ea63bbd745207bded43b71df2c1f4 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961801611.
Recording identifiers
- ISRC
- DEN961801611
- Title
- Mazurka No. 33 in B Major, Op. 56 No. 1. Allegro non tanto
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xb8723ec92a8d407b769f50e4e62ae3e8e46ea63bbd745207bded43b71df2c1f4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:7d47df123af2bea49310ad5a6a17797264e05af4cf45375cacf5919ed706e8c3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961801611
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Mazurka No. 33 in B Major, Op. 56 No. 1. Allegro non tanto · Machine-readable JSON-LD