Nocturne in G Minor

Recording by Frédéric Chopin.

Recording identifiers

ISRC
GBUM71406943
CopyrightID (CopyrightChains transaction hash)
0x68deb429fda4290e98e85d30b781ded9325006da88cbc6d42294ebaca085bcb4
Copyright registration time
2026-06-09T01:32:17+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:a826b4ddff5832920c552970ae87d09e3df3d4b84eeb00a29f8e200e09fcd684

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.