Regentropfen-Prelude

Recording by Frédéric Chopin.

Recording identifiers

ISRC
FRZ200200019
CopyrightID (CopyrightChains transaction hash)
0xbc1c98f14e0eebcaf7528f7608f6f506501b7f0490077a522d829af980ec9e47
Copyright registration time
2026-06-04T09:14:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:347cd0480988fa798421e0ad06a4aa79ba48e71335165240ee12348b8b4c2b44

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.