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
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:9b9199cd7786c0c9846ff05d4a3d0e35484e70f21f1d0f9c71a03f82c2b5803e

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.