Requiem, Op. 9: Kyrie

Recording by Maurice Duruflé.

Recording identifiers

ISRC
SEAEG9302020
CopyrightID (CopyrightChains transaction hash)
0x1673895dc8a3a8383323c80c23679e9c9d9e196f3c0dd7692ca8a2a54dfbec58
Copyright registration time
2026-07-07T15:23:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:655d96edae6f72a2d5f75bbf609833a4b6690e63f911da0010e373eefb5841c7

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.