ISRC DEF059902410
Verified recording
DEF059902410 is “Etude in A flat, Op. posth. " Méthode des méthodes "” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x4b2196aa50147661ec763b053ba155996825c42fb1ba9995e38b23f82ea55ead and independently timestamped
in Bitcoin block 960229 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059902410.
Recording identifiers
- ISRC
- DEF059902410
- Title
- Etude in A flat, Op. posth. " Méthode des méthodes "
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x4b2196aa50147661ec763b053ba155996825c42fb1ba9995e38b23f82ea55ead
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T08:30:10+00:00
- Bitcoin block
- 960229
- Canonical record hash
sha256:0c7acf2663139a8cfc5052aa5bb340e5eb62601e43c9268f54d628db67650b88- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059902410
- Bitcoin block existence check
- https://blockstream.info/api/block/960229
Full record
Track page: Etude in A flat, Op. posth. " Méthode des méthodes " · Machine-readable JSON-LD