Mass for Four Voices: Credo

Recording by William Byrd.

Recording identifiers

ISRC
ITDQ70656293
CopyrightID (CopyrightChains transaction hash)
0xa1461e9a0be4ba732132c7b6302f19a4246644d97fded6e6bd87aa5ec7a0bfdb
Copyright registration time
2026-07-07T11:51:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:1a2525625c476eab1f3b11e6e84c9baf077790f377529dd418b2b89efaac58c8

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.