Trois nouvelles etudes from Methode des methodes by Moscheles and Fetisa, Dbop. 36: No.2 in A-Flat Major, Allegretto

Recording by Frédéric Chopin.

Recording identifiers

ISRC
PLC701721807
Release date of the album this recording appears on
2018-11-29
CopyrightID (CopyrightChains transaction hash)
0xe07061b5584d56493162580eb487418301a165bff62e2b4c63f5737166f379e2
Copyright registration time
2026-07-06T02:58:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:8af3a09e23b5b758d7bf51ade7c0dfa9bed666a602283a801bdd0cedad93a107

What this proof establishes

This recording was released in 2018, 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.