No. With the Universign service, signed documents integrate data that can be used to validate the signature in the event of any disputes. In addition, when using Universign, signatories must approve the terms of use of the service and therefore accept the use of the electronic signature and its legal effects. Of course, the parties can always put in place agreements pertaining to the admissibility of evidence to set out the conditions governing paperless exchanges and, more specifically, their agreements. For example, this could take the form of an agreement, an appendix or a clause in a signed agreement, etc.