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

Credits Design

44/46 avenue de Flandre
59700 Marcq-en-Barœul

Copyright and intellectual property

All texts, comments, works, illustrations and images reproduced on the website are reserved under copyright, as well as intellectual property rights and for the whole world. As such and in accordance with the provisions of the Code of Intellectual Property, only the use for private use is authorized subject to different or even more restrictive provisions of the Code of Intellectual Property. Any other use is constitutive of counterfeit and sanctioned by the title of the Intellectual Property except preliminary authorization of Crystalchain. Any total or partial reproduction of the site is strictly prohibited. Any attempt will result in prosecution. By logging on the site, the user is prohibited from copying or downloading all or part of its content, unless prior and express authorization of its owner.

Privacy policy

The information collected on the website is recorded in a file computerized by the controller, they are intended for Crystalchain for purposes of recontact. We keep your personal data for as long as necessary to comply with legal and regulatory provisions. The data that you entrust to us are protected with the greatest attention. Crystalchain and its website undertake not to disclose to third parties the information you provide us. These are confidential. They will only be used by its internal services 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.

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 editing the site /.


It may be the implementation of “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 in these conditions the proper functioning of the website.

What is a cookie ?

A large number of websites use cookies, the main objective being to improve your user experience. A cookie is 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 accesses to read and save information. A website can only read and write the cookies that belong to it.

Why we use cookies?

When browsing the site, cookies can “recognize” your browser, for the duration of your visit (“session cookie”) 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.

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

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