24 Preludes, Op. 28: Prelude in E Major, Op. 28, No. 9

Recording by Frédéric Chopin.

Recording identifiers

ISRC
USBC19901783
Release date of the album this recording appears on
1999-02-01
CopyrightID (CopyrightChains transaction hash)
0x1ea51d6cc364e386e0b7c4b0480cbbf773b40a1de3148085ce7e1caf6fed28f3
Copyright registration time
2026-07-06T04:51:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T16:07:00Z
Bitcoin block
957061
Canonical record hash
sha256:5e7b569e22b478d4a35058a5b7254e4650a13e726078e3266507a236d958358d

What this proof establishes

This recording was released in 1999, 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.