Requiem pour soli, choeurs et orgue, Op. 9: VIII. Libera me

Recording by Maurice Duruflé.

Recording identifiers

ISRC
GBLLH1957118
Release date of the album this recording appears on
2019-04-05
CopyrightID (CopyrightChains transaction hash)
0xcec8488b5ce6f06a1319e765700b52aed631044a4795efe36060e2cc8166f475
Copyright registration time
2026-07-07T15:22:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:af2ad1c3494cbfe7612f42933128e778c396ed8f9b0d9e0d1f52c9bcbfa29666

What this proof establishes

This recording was released in 2019, 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.