Time stamp is a complete and verifiable data, which can indicate that a piece of data existed before a certain moment, usually a character sequence, which uniquely identifies the time at a certain moment. The data generated by digital signature technology includes original file information, signature parameters, signature time and other information. It is widely used in intellectual property protection, contract signing, financial accounting, electronic quotation and bidding, stock trading and other fields.

For example, our electronic contract management platform is connected to the timestamp service provided by the United Trust Timestamp Service Center, and the time attribute is added to the electronic signature, which effectively confirms the time when the contract was generated, and the file content cannot be tampered with.