Privacy and cookies
Tentis is the demo platform of Ai-Ki. This page says what the site records and why.
The short version
- One cookie, only after you sign in, only to keep you signed in. No cookie banner because nothing here needs your consent.
- No analytics, no advertising, no tracking across sites.
- We record sign-ins and which demo was opened, keep that for 12 months, then delete it.
What we record
When you use an account on tentis.org we keep a simple activity log:
- sign-ins, failed sign-in attempts and sign-outs, with the account name;
- which demo was opened and when;
- a shortened network address (the last part of the IP address is removed before it is stored).
We do not record how long you stay, what you click, or anything you type inside a demo. Visitors who are not signed in are only counted per public demo, without any address or identifier.
Why: so Ai-Ki knows which reviewers, clients and partners looked at the demos prepared for them, and to notice attempts to guess passwords. The legal basis is our legitimate interest in running and securing the platform (GDPR Art. 6(1)(f)).
Who sees it: Ai-Ki administrators only. It is not sold, shared or used for advertising.
How long: 12 months, then it is deleted automatically.
Your account
An account holds a username, a display name, optionally an email address (used only to send you your login details), your role and the list of demos you may open. Passwords are stored only as a salted hash; nobody at Ai-Ki can read them. Accounts are created and removed by Ai-Ki; ask us and we delete yours.
Cookies and browser storage
| Name | When | What it does | Lifetime |
|---|---|---|---|
tentis_session | After you sign in | Keeps you signed in. A random token; it contains nothing about you. Not readable by scripts, sent over HTTPS only. | 10 days, or until you sign out |
tentis_transfer | Only if you open the file-transfer pages (/uploads, /downloads) and enter the access key | Remembers that this browser entered the key, so you are not asked again. It holds a token, not the key, and is sent to those two pages only. | 30 days |
The demo library and the settings page keep one value in your browser's local storage: whether you last chose the grid or the list view. It never leaves your browser.
These are strictly necessary for the service you asked for, which is why there is no consent banner. There are no analytics, advertising or third-party tracking cookies on tentis.org.
Other parties involved
- Hosting. The site runs on a European hosting provider, which keeps standard server logs (address, time, page) for a limited period for security and operations.
- Fonts. The sign-in page, the demo library, the settings pages and this page use a typeface served from tentis.org itself, so your browser does not contact another site for it. The demos are separate applications and may load their own.
- The demos. Each demo is a separate application, and some run on a separate Ai-Ki server. They are demonstrations: please do not enter real personal or confidential data into them.
- Email alerts. If you subscribed to email alerts in a demo, every message has an unsubscribe link that removes you immediately.
Your rights and how to reach us
You can ask what we hold about you, have it corrected or deleted, or object to the activity log. Write to contact@ai-ki.gr. If you are not satisfied with the answer you can complain to your data protection authority (in Greece, the Hellenic Data Protection Authority).
Last updated: 2 October 2026