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

Recording by Frédéric Chopin.

Recording identifiers

ISRC
UKAZM2100064
CopyrightID (CopyrightChains transaction hash)
0xb7fab21ee04836957b8d3dda94ff3a2462fa4c6c0e528689c93fdfd5016a229f
Copyright registration time
2026-07-07T13:16:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:f525220adea48f642f5da5edb70ea6b99cae75006a4cf36bd1ff274e00cf7d8b

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.