# Court-proof evidence preservation with qualified timestamps

> Daily automated preservation of sensitive data sets with qualified eIDAS timestamps — unattended, fully logged and suitable as court evidence.

Quelle: https://kontrollfeld.de/en/case-studies/beweissicherung-zeitstempel/
Sprache: en
Kunde: Confidential
Branche: Legal & Compliance
Tech-Stack: PHP, MySQL, RFC 3161
Veröffentlicht: 2026-02-01
Hinweis: KI-generiert, menschlich reviewt.

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## Starting point

In preparation for potential legal proceedings, data sets had to be preserved in a way that later proves their exact state at a specific point in time beyond doubt. A manual export is not enough — this requires cryptographically robust timestamps and a complete, reproducible process.

## Solution

An automated preservation process that exports the relevant data daily, computes checksums and seals them with qualified RFC 3161 timestamps via an eIDAS-compliant trust service. Every run is logged; storage and certificate chain are organised to audit standards.

## Outcome

An unattended system that has produced evidence-grade preservations every day since going live. Content and timing of each preservation can be proven without relying on third parties.