ISRC DEF059602290
Verified recording
DEF059602290 is “Nocturne No. 21 in C Minor, Op. Posth.” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x6cc83a7759eb02c73df0c92329bdfb195d69792952b051420e536ea846044ff8 and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059602290.
Recording identifiers
- ISRC
- DEF059602290
- Title
- Nocturne No. 21 in C Minor, Op. Posth.
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x6cc83a7759eb02c73df0c92329bdfb195d69792952b051420e536ea846044ff8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:589b29cafb79f46de92bf825d8ea1ab8de7e4ec846087e5a3c2313fe2a7848be- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059602290
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: Nocturne No. 21 in C Minor, Op. Posth. · Machine-readable JSON-LD