Mass for five voices with Propers from the Feast of All Saints from Gradualia ac cantiones sacrae: Angus Dei

Recording by William Byrd.

Recording identifiers

ISRC
GBAYC8804931
Release date of the album this recording appears on
2002-08-15
CopyrightID (CopyrightChains transaction hash)
0x7caba156a72e44c8edf0040f608393385a698b149d69807ada6907cbb1c5c183
Copyright registration time
2026-07-07T15:21:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:ddf55e36e8d4daa97ee7fe5c77de53177596d1c34903634c87edfb998a4a5060

What this proof establishes

This recording was released in 2002, 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.