Nocturne No. 2 in E-Flat Major, Op. 9 (Arr. by Pierre Fournier)

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEF056905280
Release date of the album this recording appears on
2025-06-10
CopyrightID (CopyrightChains transaction hash)
0xe3df4bfbbc7e7a6141048d638a513f7070be0969b0556636fc3a2ceb18c40f6b
Copyright registration time
2026-06-08T19:06:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:a20119c62a7179f98b1973438e78fd5496b56b4d3e0049970d394d1d278d7561

What this proof establishes

This recording was released in 2025. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.