Nocturne No. 8 In D Flat, Op. 27 No. 2 - 2005 Recording

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEN960531208
CopyrightID (CopyrightChains transaction hash)
0x61d8aff98c2de4ea8423a3ee351cfc85afc68d3eb78a873d0f6fe6878bbe5def
Copyright registration time
2026-06-04T09:08:17+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:40e4625af42368d0b0c694983cc1b925d962a42f15e3e2a75eb6f943df235a39

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.