Mass for Five Voices: I. Kyrie

Recording by William Byrd.

Recording identifiers

ISRC
UK4WW1510001
CopyrightID (CopyrightChains transaction hash)
0xf6e591fc719819494335564629ae3b37a4a298bd8e9831ad2b2f12959bfa88f0
Copyright registration time
2026-07-07T16:20:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:c480c189d228f65fa8eb16ed921c4fb792485f54fe8a4843bba3a32f6bc87b2b

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.