Nocturne in F Major, Op. 15, No. 1

Recording by Frédéric Chopin.

Recording identifiers

ISRC
FR47Q1000510
Release date of the album this recording appears on
2010-02-15
CopyrightID (CopyrightChains transaction hash)
0x2ea0582eab5f926e88f992ab87cc5efc0bfcf7abcdff0e660b09ce29c7ea45d4
Copyright registration time
2026-07-30T15:26:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T15:42:38Z
Bitcoin block
960273
Canonical record hash
sha256:f4de14cee5d196da3ee7bd32e2c95f737a9e695ea3683ca9cfb61d2a7f12ab28

What this proof establishes

This recording was released in 2010, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.