Both are OK and quite stable.

According to Articles 13 and 14 of the Electronic Signature Law, a reliable electronic seal has the same legal effect as a handwritten signature or seal.

A reliable electronic seal must meet four conditions at the same time:

First, when the electronic seal production data is used for the electronic seal, it is exclusive to the signer;

Second, the electronic seal production data is only controlled by the signer when signing;

Third, any changes to the electronic seal after signing can be discovered;

Fourth, after signing Any changes to the content and form of data messages can be detected.

If the electronic seal does not meet the above four conditions, it may be deemed invalid. For example, the application for making an electronic seal is fraudulent, the affixed electronic seal lacks a time stamp, and the third-party certification service provider Without the qualifications to provide electronic certification services, etc., all legal documents signed and all actions performed by financial institutions based on unqualified electronic seals may have validity defects.