Victoria: Requiem (Missa pro defunctis) - 04. Kyrie I

Recording by Tomás Luis de Victoria.

Recording identifiers

ISRC
GBADM8751209
Release date of the album this recording appears on
1987
CopyrightID (CopyrightChains transaction hash)
0xb560e4875982bd2b325692b2c60a4a87c5618a85509ec432dde333fa0b8e00e9
Copyright registration time
2026-07-06T09:34:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T14:41:13Z
Bitcoin block
957050
Canonical record hash
sha256:1a0d296e5319fc5554df11892a1af822d1142b870c74173e7117e855887caaef

What this proof establishes

This recording was released in 1987, 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.