ISRC ITK262200127

Verified recording

ITK262200127 is “Nocturne in E minor, Op. 72, No. 1” by Frédéric Chopin, registered on the CopyrightChains blockchain with CopyrightID 0xd8350a27769a9d36fab36f4a34b459abb030b65e06044922bb30b172f58a5038 and independently timestamped in Bitcoin block 960277 on 2026-07-30. Verify the canonical record, hash, and Bitcoin attestation at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK262200127.

Recording identifiers

ISRC
ITK262200127
Title
Nocturne in E minor, Op. 72, No. 1
Artist
Frédéric Chopin
CopyrightID (CopyrightChains transaction hash)
0xd8350a27769a9d36fab36f4a34b459abb030b65e06044922bb30b172f58a5038

Dual-chain proof evidence

Bitcoin-attested timestamp
2026-07-30T16:10:47+00:00
Bitcoin block
960277
Canonical record hash
sha256:820136c32260b243d0664a5789f121c47af2468af9cb9c8fbb35ff48e4ac8e6c
Verification API (6-check server-side result)
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK262200127
Bitcoin block existence check
https://blockstream.info/api/block/960277

Full record

Track page: Nocturne in E minor, Op. 72, No. 1 · Machine-readable JSON-LD