Dérive 2

Recording by Pierre Boulez.

Recording identifiers

ISRC
DEN961700001
CopyrightID (CopyrightChains transaction hash)
0xaf20d5371444c82aa5c2c38e5e464bae25687fb33c250496ed692a557a6fd064
Copyright registration time
2026-07-31T23:00:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T23:30:38Z
Bitcoin block
960478
Canonical record hash
sha256:c69edd7f327afcf53683d899d767cd608446efde6d35e073c258bac156749008

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.