That is, the name of the party or the name of the unit is stamped. Its function means double insurance. The Eighth National People's Congress adopted the concept of signature and seal in1May 1995 1995. Adopted at the 13th meeting of the Standing Committee, the contents are as follows: Article 7 The signature on a negotiable instrument is signature, seal or both.

According to the nature of the signature, it can be divided into legal person signature and natural person signature:

Signature of legal person: generally, official documents are only stamped with the corporate seal (official seal) at the end of the official document; Some official documents involving the responsibility of the legal representative must have the name and official seal of the unit, as well as the signature and private seal of the legal representative.

The signature of a natural person shall be personally signed in the name column of the document, and the private seal of the party concerned shall be affixed.

With the progress of the times, electronic signatures have gradually begun.