Nocturnes, Op. 15: No. 3 in G Minor

Recording by Frédéric Chopin.

Recording identifiers

ISRC
GBAYC0500193
CopyrightID (CopyrightChains transaction hash)
0x2fef948c8d67895b112d08c1b8217e4da30d7200d1f782328bdad8b7fc97249d
Copyright registration time
2026-07-07T04:29:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:a89ad14bc1e23e129cf73a9aebf7e307a1e21202b2a284822449635a666552f7

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.