Etudes, Op. 10 "Chanson de l'adieu": No. 3 in E Major

Recording by Frédéric Chopin.

Recording identifiers

ISRC
ATMA40509502
CopyrightID (CopyrightChains transaction hash)
0x5b0fcdc1dd0cb1aa65b7ae2514879c52241dc5b6d6ede1b07711aec6f565cf42
Copyright registration time
2026-07-06T07:41:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-13T07:53:33Z
Bitcoin block
957819
Canonical record hash
sha256:bbad4d19b857cacd4238fed25aa7d29fab967644d421d46ede228794ee63f94b

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.