Mass for four voices, IV Sanctus

Recording by William Byrd.

Recording identifiers

ISRC
FR0O70720150
CopyrightID (CopyrightChains transaction hash)
0xc904b53c1b12511a8bf35fd8d902d535fbcfa8addf5456460f71f79e58a94ad7
Copyright registration time
2026-07-31T12:03:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T12:24:41Z
Bitcoin block
960397
Canonical record hash
sha256:7b8a6ea46ddc691384cac14ab6dd96a2cd4baecb4a874fdf904b3e64bd5d9b71

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.