proof of service
- A declaration offered to a court, typically provided by an authorized official such as a sheriff, that serves as verification that a legal document was properly delivered to a designated party
- The judge would not proceed with the hearing until they had received the proof of service indicating that the defendant had been notified.
- After serving the subpoena, the process server provided a proof of service to confirm they had fulfilled their obligation.
- The court clerk would not process the motion until the plaintiff submitted a valid proof of service.