Mass for Four Voices: Gloria

Recording by William Byrd.

Recording identifiers

ISRC
USA561300515
CopyrightID (CopyrightChains transaction hash)
0xe30da9c0750bb196a9f09ce303d7599d927b2c0d6e476a4b1c9dc85767736ce7
Copyright registration time
2026-07-06T07:04:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T18:39:05Z
Bitcoin block
957073
Canonical record hash
sha256:81e3348dd885669ce9b53a25ca7945ca3288763d33348b282edc83831a7bc5d0

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.