Anyone can issue a digital certificate, provided they have the right type of CA system or service needed to create the certificate. There are different types of certificates which can be created and issued. For example, some organizations create and issue generic certificates, which are used to validate users when connected to their resources. These types of certificates may or may not contain a digital signature, depending upon the application.
A Digital Certificate Can Be Used for a Time Stamping Authority System
A digital certificate can be used for a variety of business purposes and applications. You can use this type of certificate for time stamping processes for electronic data, documents, PDF files, and payment transactions. The time stamping feature can be used as a standalone service, or as part of a complete solution inside your organization. For instance, it can be included whenever users digitally sign data, forms, files, or documents using a qualified digital signature.