24 Preludes, Op. 28: No. 4 in E Minor. Largo

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEN962436704
CopyrightID (CopyrightChains transaction hash)
0x5e4cdea044862cab1988510c2d08da585effd27ceb892925ff9af5ab7977fc6f
Copyright registration time
2026-06-04T07:33:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:37a9717bd5d12dcc643961eca1a448224b190b06735c21300c0d6ff002da8e59

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.