Missa 'Mi-Mi' (Missa Quarti Toni) a 4: I. Kyrie

Recording by Johannes Ockeghem.

Recording identifiers

ISRC
GBAYC8401322
Release date of the album this recording appears on
2010-04-19
CopyrightID (CopyrightChains transaction hash)
0x583cf2504ace73b9e9d2061eb78f756c4f8af308e219542ef2b34beee9a1e46c
Copyright registration time
2026-07-29T11:45:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T12:35:17Z
Bitcoin block
960105
Canonical record hash
sha256:6d33f5d4fb5ae80f5b73b32cbbf38fc339370b8f080aaa9adfdc16eda58481c5

What this proof establishes

This recording was released in 2010, 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.