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

Recording by Frédéric Chopin.

Recording identifiers

ISRC
GBAYC9101706
CopyrightID (CopyrightChains transaction hash)
0x3e8a4f44d19f712a4c82c52409f4a354dac7b4d7eb5908c8368229273c4b9db1
Copyright registration time
2026-06-11T05:34:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:73ce5a9e9554eafa2e9fec98b4da766fc296b9502c5e3cda0a07e2d3b5dbdc55

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.