Troisème Leçon de Ténèbres à deux voix: II. Caph

Recording by François Couperin.

Recording identifiers

ISRC
FR50X2412917
CopyrightID (CopyrightChains transaction hash)
0xb6018796d89276b920c802bd3af7949a8e96d4682dfbbfff313d6b820d99beba
Copyright registration time
2026-07-06T21:05:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:135d8507af02e617123ae9bce569c6b7910b14195dd8786f22e60293cb381480

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.