12 Études, Op. 25: No. 9 in G-Flat Major "Butterfly Wings"

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEF057230108
Release date of the album this recording appears on
2011-01-01
CopyrightID (CopyrightChains transaction hash)
0x560a0cca74f9911e8b663627635fd0085e55da1bc1bc6eaf86f0c5d51f1818ce
Copyright registration time
2026-07-02T22:15:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T11:02:43Z
Bitcoin block
957026
Canonical record hash
sha256:ab069bd0ea666612381b61ef24c1e14616b0e89cef444a9bec3bc3a7c2670a64

What this proof establishes

This recording was released in 2011, 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.