Mass for Four Voices: IIIb. Qui propter nos homines

Recording by William Byrd.

Recording identifiers

ISRC
GBBBC2201439
Release date of the album this recording appears on
2023-01-13
CopyrightID (CopyrightChains transaction hash)
0x40fcf6000bb73be1ef88c111984f03609361f9715b62ae45ce8538a433f4538d
Copyright registration time
2026-07-06T23:11:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:f4be778310c754e3688906d23a2d1f167a2b2b208e228726db0817b9729d8628

What this proof establishes

This recording was released in 2023. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.