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
2009-01-01
CopyrightID (CopyrightChains transaction hash)
0x560a0cca74f9911e8b663627635fd0085e55da1bc1bc6eaf86f0c5d51f1818ce
Copyright registration time
2026-07-02T22:15:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:94f6879102c5e6566d8560d66d5d48001dc00d1afa7f17497b410e5f2f54eb82

What this proof establishes

This recording was released in 2009, 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.