24 Préludes, Op. 28: No. 4 in E-Minor

Recording by Frédéric Chopin.

Recording identifiers

ISRC
EEUV32300080
CopyrightID (CopyrightChains transaction hash)
0xa018c9f0ec84d8fdfc1bd742e6355cdb1ddb883630b4b851496b598016f3beb5
Copyright registration time
2026-07-30T15:40:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T15:42:38Z
Bitcoin block
960273
Canonical record hash
sha256:8d21fed4a631b73a8b9c9837352a14829ab8f78a2b7d2d627855532afbd991f8

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.