ISRC DEF059602280
Verified recording
DEF059602280 is “Nocturne No. 20 in C-Sharp Minor, KK IVa/16 - (From "The Pianist")” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x3bd85cd5f7cae7d3960f50a94f106b9ff65014f81d8d574d1b268fc0f395af51 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059602280.
Recording identifiers
- ISRC
- DEF059602280
- Title
- Nocturne No. 20 in C-Sharp Minor, KK IVa/16 - (From "The Pianist")
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x3bd85cd5f7cae7d3960f50a94f106b9ff65014f81d8d574d1b268fc0f395af51
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:5bfa93f824b6f42789530a5fdde43d10297fbd21da63aee2284e6de82341bff7- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059602280
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Nocturne No. 20 in C-Sharp Minor, KK IVa/16 - (From "The Pianist") · Machine-readable JSON-LD