Requiem, Op. 9: VIII. Libera me

Recording by Maurice Duruflé.

Recording identifiers

ISRC
GBAJY2443608
CopyrightID (CopyrightChains transaction hash)
0x1b6903d55ddcd8c457ef63944d20254b8e31dea412664e1462b9a53cf1149a71
Copyright registration time
2026-06-21T22:11:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:9e1b12e5ddad142dd805aa313c2bee8826726fb7e645bda24499fec2b84babdb

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.