Under RIA DigiDoc settings it is possible to set access to the Time-Stamping service.
To set a Time-Stamping service URL:
1. Launch the RIA DigiDoc application.
2. Click on the icon with three dots on the right-hand side.
3. In the window that opens, select "Settings".
4. Set the TSA URL in the "Access to Time-Stamping service" textbox. To do this, first click on the button "Use default" and then enter the required address in this field.