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

Recording by Frédéric Chopin.

Recording identifiers

ISRC
GBAYC0301515
CopyrightID (CopyrightChains transaction hash)
0xce879f95cca49481146a161b5174cf6d286b7c6ad73a368e705565703ee61e82
Copyright registration time
2026-06-26T11:23:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:05e4c50465e59d40d677c288c933423bd5f1e9ad16d4da84920522b7ee7cb2f4

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.