2 Bourrees, B160b: No. 2 In A Major

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEF059902340
CopyrightID (CopyrightChains transaction hash)
0xef10353e67605c6bbca43c73a9d9ef036fd8a9e2030ba6b3417f1046e49d6ca1
Copyright registration time
2026-06-24T07:58:10+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:dd205ed05b393b3526ac1cce4a99561d48efe93f0d62c501b2c1211feb8c8193

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.