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Who is responsible

The controller of the personal data described here is Rumen Doynov, Sofia, Bulgaria, who develops Perennis. Contact: contact@perennistrust.eu.

What this site does not do

• It sets no cookies and uses no local storage.
• It runs no analytics, advertising or tracking code.
• It loads nothing from third parties: fonts, scripts and images are served from this site.

The lab

The lab reads the file you choose into your browser’s memory, signs and verifies it there with keys generated in the same tab, and sends nothing over the network. When you close or reload the tab, the file and the keys are gone. We never receive them.

Server logs

The web server that delivers these pages records standard access data for security and operation: IP address, date and time, the page requested and the browser’s user-agent string. These logs are not used to profile visitors and are kept only as long as needed for that purpose. Legal basis: legitimate interest in operating a secure website (Article 6(1)(f) GDPR).

When you write to us

If you email us or contact us on LinkedIn, we process your name, contact details and what you write in order to reply and, if you wish, to arrange a briefing or a pilot. Legal basis: steps taken at your request before entering into a contract, and our legitimate interest in answering enquiries (Article 6(1)(b) and (f) GDPR). We keep the correspondence for as long as the conversation is active and as required by law afterwards.

Your rights

You can ask for access to, correction or deletion of your personal data, restriction of or objection to its processing, and data portability, by writing to the address above. You also have the right to lodge a complaint with the Bulgarian Commission for Personal Data Protection (cpdp.bg) or with the supervisory authority in your own EU country.

Last updated: 11 November 2026