Note: The verificable certificates must be among those accepted by the Ministerio de Industria Turismo y Comercio of Spain. Please refer to the complete list of accepted certificates Certificates admitted by the platform @firma. If your signature does not validate properly, because it indicates certified no supported, but his certificate if it finds between the collected Web page of Ministerio de Industria, Turismo y Comercio we advise you to get in touch with the support helpdesk.