Requiem, Op. 89 B. 165: Sequentia: Lacrimosa (Vocal Quartet, Chorus)

Recording identifiers

ISRC

HKI191413608

Release date of the album this recording appears on

2014-11-04

CopyrightID (CopyrightChains transaction hash)

0xa3083c7616bd1023fb82147730d83733e371d28b22d5d30dd6f0ad0674a449ff

Copyright registration time

2026-07-29T13:56:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T14:28:24Z

Bitcoin block

960117

Canonical record hash

sha256:258a3bf2bffb9a2473c93e17c8f61eac9cc1e403858115896904bcca985c42ae

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC HKI191413608

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.