Missa "De plus en plus": Kyrie

Recording by Johannes Ockeghem.

Recording identifiers

ISRC
DEF059602771
CopyrightID (CopyrightChains transaction hash)
0x117f55832caf9cf66a832ff13a36688d9690d8196531dbb75683d9b40e7cc57d
Copyright registration time
2026-07-07T05:41:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:5cd17af29545de3f80abf085b09a4f43105ec5cd959a20d3595bb7ec60c6a222

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.