Four Part Mass: Agnus Dei

Recording by William Byrd.

Recording identifiers

ISRC
GBLLH1123512
CopyrightID (CopyrightChains transaction hash)
0xf0e33611f46eeedcf2d5c095675fe0de93a73d696cefaec0244ae50696f6830d
Copyright registration time
2026-06-10T16:30:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:4d7f902cfa5a86c8b2c7bfde4ea855bccb4a5dfca28ed0715a49949042043634

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.