Deuxième leçon à une voix: Jvau. Et egressus est

Recording by François Couperin.

Recording identifiers

ISRC
ES7141500423
Release date of the album this recording appears on
1991-12-03
CopyrightID (CopyrightChains transaction hash)
0xeea21bb6989c251b2d000b02e2028ea60e38060d5c1bdd696fe8b766aff7b1da
Copyright registration time
2026-07-07T20:34:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:c93aa61130ce909036b505ba85ee9eb6e091d5d093eec91e046d177ed63df758

What this proof establishes

This recording was released in 1991, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.