Legal analysis: 1. There are two notaries at the scene of evidence preservation notarization, and there is only one signature and seal on the notarial certificate, which is a notary. If the notary office sends personnel to go out for verification, it shall be conducted by two people, except for verification and collection of documentary evidence. Under special circumstances, if only one person goes out to verify, there should be witnesses present. A notarial certificate is a legal document made by a notary office and sent to the parties for use.

Legal basis: Article 32 of the Notary Law of People's Republic of China (PRC), a notarial certificate shall be made in the format prescribed by the judicial administrative department of the State Council, signed or sealed by the notary, and stamped with the seal of the notary office. The notarial certificate shall take effect as of the date of issuance.

The notarial certificate shall be written in the language commonly used throughout the country; In ethnic autonomous areas, according to the requirements of relevant parties, the local common national languages can be formulated.