Nocturne In E Flat Op.55, No.8

Recording by Frédéric Chopin.

Recording identifiers

ISRC
CAM239900042
CopyrightID (CopyrightChains transaction hash)
0xb7026e4fe26b8c5dff3b5620d8279c73cad49e1737279f9d0d8fcc5951da9b5d
Copyright registration time
2026-07-06T19:52:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:c31076a7e7e8f3f6fd7d02e5db715958508acc7cdc2d6891969fb8a1cdd335a8

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.