Mass for Four Voices: IIa. Gloria

Recording by William Byrd.

Recording identifiers

ISRC
GBBBC2201436
CopyrightID (CopyrightChains transaction hash)
0x18e8b4f6ee9433526d60f730a9573e27ccd7cba0d16e0548d8cdc4670f5a32a4
Copyright registration time
2026-07-06T19:13:49+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:0d8525ef11e5dc78f9ce6ee0ddd32445ddb8f6037ca7617faa401d295a09d76f

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.