24 Preludes, Op. 28: No. 9 in E Major. Largo

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEN962131009
CopyrightID (CopyrightChains transaction hash)
0xeb43f9c00f3457c89fc971f7e7475bdb975f3557c5012387c542f077b226064e
Copyright registration time
2026-07-06T07:27:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:c8cb98032aaea6e41dbffabd028ef7c87777dc98fc6c4f6cb6ba378a0e1fb53e

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.