Contredanse in G-Flat Major, KK Anh. Ia/4

Recording by Frédéric Chopin.

Recording identifiers

ISRC
GBAJY0836021
CopyrightID (CopyrightChains transaction hash)
0xb48ac2bf2a4a68b89dc9302db29e535f745921943cf825db35de97c14cedebf6
Copyright registration time
2026-07-31T19:06:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T19:53:13Z
Bitcoin block
960455
Canonical record hash
sha256:3fd4c3e1b3a80ce3d4e33f28a3f3925ed96f53e8ea9999b32257f6b83fa17ac4

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.