Missa Se la face ay pale: II. Kyrie

Recording by Guillaume Dufay.

Recording identifiers

ISRC
FR50X0305102
CopyrightID (CopyrightChains transaction hash)
0xf1be123a94c242bd0c53de36025407407beb89f20a9df078f181c898b6abeb69
Copyright registration time
2026-07-08T01:18:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:05193a5e969d6496c8c530a29ed6fb932befa440195b686afa8df747a337ea83

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.