24 Préludes, Op. 28: Prelude No. 4 in E Minor

Recording by Frédéric Chopin.

Recording identifiers

ISRC
ITP900900003
CopyrightID (CopyrightChains transaction hash)
0xf76bae82fdfaa3b8d97079481529f282386164ab6a3f7f9b0a0aab8e73a45c3d
Copyright registration time
2026-06-05T21:08:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:b3cd500aa4a30a92432d52b68fcc659e337571bfc18b77f2856837a48aa48520

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.