Legal Notice

The website is published by the company CRYSTALCHAIN.
3, rue du Commandant Rivière
75008 Paris — France
Tél. +33 (0) 1 86 95 39 90

SIRET : 82185136700028
European VAT N°: FR62821851367
Share capital: 1927 euros
Publication director: Maxime Michelot

This site is hosted by Kinsta Inc., 8605 Santa Monica Blvd #92581, West Hollywood, CA 90069, USA

Copyright and intellectual property

All text, comments, works, illustrations and images reproduced on the website are reserved under copyright, as well as intellectual property rights, for the whole world. As such and in accordance with the provisions of the Code of Intellectual Property, only private use is authorized, subject to different or even more restrictive provisions of the Code of Intellectual Property. Any other use constitutes a counterfeit act and will be sanctioned under Intellectual Property laws, except where prior authorization from Crystalchain has been obtained. Any total or partial reproduction of the site is strictly prohibited and any attempt to do so will result in prosecution. In visiting the site, the user is prohibited from copying or downloading all or part of its content, unless prior and express authorization from Crystalchain has been obtained.

Privacy policy

The information collected on the website is recorded on a digital file and intended to be used by Crystalchain for follow-up purposes and/or for the continued improvement of our services. We keep personal data on record for as long as necessary to comply with legal and regulatory provisions. The data that you entrust to us is protected with the greatest attention. Crystalchain and its website undertake not to disclose to third parties the information you provide us with. It is confidential and will only be used by Crystalchain for the processing of your request. In accordance with the Data Protection Act of 6 January 1978, you have the right to access, rectify and oppose personal data concerning you. Should that be the case, please inform us in writing at the following address:

3 rue du commandant Rivière
75008 Paris

or by email at:

Links and partner sites

The links on the website may direct the user to external sites whose content can not in any way engage the responsibility of Crystalchain or our site:


Sometimes, we may embed “cookies” in your computer. A cookie does not allow us to identify you. In general, it records information about the navigation of your computer on our site. You can oppose the registration of cookies by configuring your browser accordingly. Crystalchain does not guarantee  the proper functioning of the website in this case.

What is a cookie ?

A large number of websites use cookies, the main objective being to improve your user experience. A cookie is a piece of information stored on your hard drive by the server of the site you are visiting. This information is sometimes stored on your device in a simple text file that a server can access to read and save information. A website can only read and write its own cookies.

Why do we use cookies?

When browsing the site, cookies can “recognize” your browser, for the duration of your visit (“cookie session”) or during multiple visits (“persistent cookie”). Cookies can have several roles but are used on our site for the purposes of statistical analysis and traffic management only, allowing us, for example, to improve the ergonomics of the site and the interest of our services.

For additional information on cookies, you can visit the website of the National Commission for Computing and Freedoms (CNIL):