Les Sylphides: 6. Prélude

Recording by Frédéric Chopin.

Recording identifiers

ISRC
NLA507812606
CopyrightID (CopyrightChains transaction hash)
0x52a50f3774ab33b26a243ca7415a2dadb2ce058a4cf375719deb45ef1f6faf7e
Copyright registration time
2026-06-24T11:09:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:2dc2f9e819aee391759b9e903c3fb3a390ac7fe6ace6106b0af4ae42ceda78dd

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.