12 Études, Op. 10: No. 5 in G-Flat Major "Black Keys"

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEF057230004
Release date of the album this recording appears on
2009-01-01
CopyrightID (CopyrightChains transaction hash)
0x23be54121b3e73cae89279020db6f0b19631ffb9aaebabea957f61d508746dcd
Copyright registration time
2026-06-26T00:08:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:333484f6aa1188a3278969a4e9d68d39e1f8e0ca3b4fe90a1cdbd6640e59a368

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.