Requiem, K. 626 (Ed. Robbins Landon): II. Kyrie - Live at Stephansdom, Vienna, 1991

Recording identifiers

ISRC

GBF079140902

Release date of the album this recording appears on

1992-01-01

CopyrightID (CopyrightChains transaction hash)

0x8e0a5efd987e959187bb9c1ef1a843fe11467f2438d10527a3e229ff1dc77c4a

Copyright registration time

2026-07-06T04:50:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-06T07:53:57Z

Bitcoin block

956894

Canonical record hash

sha256:26f121c812702266502617ac3d118378679a95cd2b736b53f256b4dba26ba3e1

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBF079140902

What this proof establishes

This recording was released in 1992, 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.