Download the official signature generation tool on the mobile phone to see if it is consistent with the public platform (if it is still the same error after modification, delete the APP and download it again.

Sign, pinyin qiāníng, is to write your own name, especially to express agreement, recognition, responsibility or obligation. As an object, attributive; Excerpted from "The Strange Situation Seen in Twenty Years". In real life, some methods (such as handwriting, fingerprints, etc. ) has been used as proof of the identity of the signer. This is because: the signature is credible; Cannot be forged; Not reusable; Undeniable; The signed document is irrevocable. In the coming digital life, electronic documents will gradually replace paper documents as the main body of information exchange. The way to prove that the electronic document is made by the author is to make an electronic signature on the electronic document by simulating the ordinary handwritten signature. The author can identify himself by digital signature, and the reader can verify the identity of the author by digital signature.