Missa brevis in A Major, BWV 234: I. Kyrie

Recording identifiers

ISRC

CH1260990701

Release date of the album this recording appears on

2009-11-01

CopyrightID (CopyrightChains transaction hash)

0x8d694c24237c11fcd58e2d198f29a145067d429b428a0661eb59bbd1680320cf

Copyright registration time

2026-07-31T12:49:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T13:04:34Z

Bitcoin block

960403

Canonical record hash

sha256:36355b2c8831a27d1346d7e286d8d593df2ef82a5ef209fb184b897826ff99bc

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC CH1260990701

What this proof establishes

This recording was released in 2009, 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.