Reconstruction of Requiem Performance at Mozart's Funeral in 1793: Kyrie

Recording identifiers

ISRC

GBASH1444919

Release date of the album this recording appears on

2014-03-31

CopyrightID (CopyrightChains transaction hash)

0x8b6f33c13df8cde24cc9c31a81e79a01f2e236648582e5df967fa527a418ced8

Copyright registration time

2026-07-31T15:35:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:59:18Z

Bitcoin block

960427

Canonical record hash

sha256:784902a32ee3f8cdad57356561b5c41e7e828e08ccb885345255ff640772e72a

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBASH1444919

What this proof establishes

This recording was released in 2014, 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.