Solution

• Point your timestamp request to http://ts.quovadisglobal.com/eu or http://ts.quovadisglobal.com/ch
• Register your IP address with Digicert
  
• Request and receive timestamps
• To check if the service is available go to http://ts.quovadisglobal.com/healthcheck
  • "ALLOK" means Return Code "OK 200" -> Services are up and running