ISRC CAAGN1699007
Verified recording
CAAGN1699007 is “Mazurka No. 25 in B Minor, Op. 33 No. 4” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x68e6c24b3c8f4afb40dcc00c06ed75802750d98223306793bc84b6edd93ee42a and independently timestamped
in Bitcoin block 957055 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAAGN1699007.
Recording identifiers
- ISRC
- CAAGN1699007
- Title
- Mazurka No. 25 in B Minor, Op. 33 No. 4
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x68e6c24b3c8f4afb40dcc00c06ed75802750d98223306793bc84b6edd93ee42a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T15:12:44+00:00
- Bitcoin block
- 957055
- Canonical record hash
sha256:59b77c8c9380b130e77f80414fa36108b6ccfa9bccb4bffadb9911d4dd97a3f2- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAAGN1699007
- Bitcoin block existence check
- https://blockstream.info/api/block/957055
Full record
Track page: Mazurka No. 25 in B Minor, Op. 33 No. 4 · Machine-readable JSON-LD