Prolog, Requiem I

Recording by Bernd Alois Zimmermann.

Recording identifiers

ISRC
DEK910810401
CopyrightID (CopyrightChains transaction hash)
0xf5c5a8dea17cf12dec3f990de073e118ae740fe8e21fb759e7eccc271d33d247
Copyright registration time
2026-07-31T19:06:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T19:53:13Z
Bitcoin block
960455
Canonical record hash
sha256:3583d020a6b6f7b7f69d3c1f6828e8db7c401de0aff37c7baeb735f677efa6ec

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.