Mozart: Mass No. 18 in C Minor, K. 427 "Great Mass": I. Kyrie

Recording identifiers

ISRC

DEA808500301

Release date of the album this recording appears on

1985

CopyrightID (CopyrightChains transaction hash)

0x0621880f426c374c6bbf18ea1e87065c7268af0731b11694189ad9ddd9b7eaeb

Copyright registration time

2026-07-30T11:54:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T12:06:10Z

Bitcoin block

960254

Canonical record hash

sha256:c2c2876727171cc7dde89952d807815b51323ab587f80cd14c751b2135416f74

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEA808500301

What this proof establishes

This recording was released in 1985, 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.