Requiem, Op. 9: Sanctus

Recording by Maurice Duruflé.

Recording identifiers

ISRC
DELW71732004
CopyrightID (CopyrightChains transaction hash)
0xe05140c978e567897eedcaf3cbe4894a52ea3fb8e334e3c800c56040a7346201
Copyright registration time
2026-06-25T23:32:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:b8381514c40fe4c2e65dd503e4b374b790e67f54c951f96408b4810bb481768a

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.