The latest version of beta now supports Solidar trading.

Whitepaper Solidar: A demurrage based currency to prevent systemic crises.
Whitepaper Solidar-2019.pdf
Adobe Acrobat Dokument 88.5 KB

To start using Solidar vouchers you will need a wallet that helps you to show your account balance and to send SDRs to other users.


Advanced users can also create a "paperwallet" at

To download a windows wallet, please see for the newest version.

Installation introductions:

Source-Code could be found here.

Contact us

Bitte den Code eingeben:

Hinweis: Bitte die mit * gekennzeichneten Felder ausfüllen.

* We are working to get the contact form in an english version. Until then please fill the third box with your message, enter the captcha and hit send.

To write us an encrypted Email for special security relevat purposes please see public PGP key at Number: A40C3170 or download the public Key from here:

Download (0xA40C3170)
Komprimiertes Archiv im ZIP Format 2.5 KB