Requiem: Kyrie

Recording by Maurice Duruflé.

Recording identifiers

ISRC
DEF059802472
CopyrightID (CopyrightChains transaction hash)
0x7b7a716b07ae963c79f1ea44759560a5565552c82a22513f12072f7e77d1c8ea
Copyright registration time
2026-07-07T15:21:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:db2ec5565bf9b843cd1780aa1d21adaf0245590e67cf0561046c4f283ddaad80

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.