ISRC DEF059004362
Verified recording
DEF059004362 is “Mazurka No. 11 in E Minor, Op. 17 No. 2. Lento, ma non troppo” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xa533e53856f6d31d7024d50519ad3e51639a55fe764f8d398c90949b63085120 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059004362.
Recording identifiers
- ISRC
- DEF059004362
- Title
- Mazurka No. 11 in E Minor, Op. 17 No. 2. Lento, ma non troppo
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xa533e53856f6d31d7024d50519ad3e51639a55fe764f8d398c90949b63085120
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:3a78ff1984af8b555bc2b860635a98108a883aa653fdc23cf489eb14fdeabcc3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059004362
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Mazurka No. 11 in E Minor, Op. 17 No. 2. Lento, ma non troppo · Machine-readable JSON-LD