Contredanse In G Flat Major

Recording by Frédéric Chopin.

Recording identifiers

ISRC
ITUM71000129
CopyrightID (CopyrightChains transaction hash)
0xd9d27dbd947a2614c7f10b8e34799ddc1cd97e21518e8cbd43e2fe139d88ecd3
Copyright registration time
2026-06-12T01:29:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:8d6a8b9197d28f93e9563dff95199ff530e6f79d2d37d560c448d54b6a8c5e9b

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.