Nocturnes, Op. 9: No. 2 in E Flat Major. Andante

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEN962005032
CopyrightID (CopyrightChains transaction hash)
0xae487da65d20a9c0b662bf19d57f53168fe008fe036497f9ae20b5c655ce9eb8
Copyright registration time
2026-06-05T18:15:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:332045b4b65c22e1c0fe92768a3ea0a09e8bd1c6a5998e6c4b51c5e6c64a6fde

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.