Mass for five voices with Propers from the Feast of All Saints from Gradualia ac cantiones sacrae: Offertorium : Iustorum animae

Recording by William Byrd.

Recording identifiers

ISRC
GBAYC8804928
Release date of the album this recording appears on
2002-08-15
CopyrightID (CopyrightChains transaction hash)
0x8705e902a0e8a65c02c7272e6e1c139c09754de15460a21649c62210730e4885
Copyright registration time
2026-07-31T18:22:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T18:48:12Z
Bitcoin block
960448
Canonical record hash
sha256:0f7ba063e7d5cc9f34c0a6ef502c83e266756719cd73a2a32538003e70742700

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.