Trois Nouvelles Etudes, B. 130: No. 3 in A-Flat Major

Recording by Frédéric Chopin.

Recording identifiers

ISRC
USX762290115
Release date of the album this recording appears on
1978-06-16
CopyrightID (CopyrightChains transaction hash)
0xceedce1ec7e77b01d9e69ce17aab998a23a52bf0cfd7766b099a096c0dbf93a9
Copyright registration time
2026-07-30T05:49:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T06:39:12Z
Bitcoin block
960216
Canonical record hash
sha256:3f93642c660dbe79491b93bcb731f9b62774841ebde53f7564ee47ba4ca8a099

What this proof establishes

This recording was released in 1978, 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.