Preludes

Recording by Frédéric Chopin.

Recording identifiers

ISRC
HRAC22400008
CopyrightID (CopyrightChains transaction hash)
0x2241a896ae3eda1090c5b5257ef33e7b6d8e8270a9d5805bf63b254dd697c3c2
Copyright registration time
2026-06-20T07:32:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:9be4eb26410d042773c4f4e01de8830223c1d5c98a900d5c449c1c90466904f5

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.