Missa Brevis No. 7 in B Major "Sancti Joannis de Deo": I. Kyrie

Recording identifiers

ISRC

US6R21396752

Release date of the album this recording appears on

1990

CopyrightID (CopyrightChains transaction hash)

0x6ea127f0718eaf1890134f8b09fc9c365bfbb494e9c65e1cb521c3cdb025136e

Copyright registration time

2026-07-30T01:51:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T02:05:19Z

Bitcoin block

960193

Canonical record hash

sha256:2c9fe928a3a8e0272c56588a647e11bd16fa082d3fc1161ced456c68a2354095

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC US6R21396752

What this proof establishes

This recording was released in 1990, 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.