A timestamp is an electronic record that keeps track of all transactions and approvals occurring in a digital environment. It is recorded through a computer, ensuring its integrity and proving its existence at a specific date.

According to Article 3, paragraph (h) of Law No. 5070 on Electronic Signatures (In Turkish), a timestamp is defined as "an electronically verified record with an electronic signature, provided by an electronic certificate service provider. Its purpose is to determine the time when electronic data is produced, modified, sent, received, and/or recorded."