Signature is a means to confirm the identity of the parties. If the handwriting is so sloppy that it can't be confirmed, it can't be passed and needs to be re-signed for confirmation.

At present, there are three forms of "contract confirmation": signature, fingerprint and seal.

These three forms of "contract confirmation" in many documents, in addition to the signature of the parties, there are generally two ways of "proof", namely "fingerprint" and "seal". If "signature", "fingerprint" and "seal" all indicate confirmation of the contents contained in the written contract, you can choose one of them.

Fingerprint is unique, which can determine the identity of the parties, but it is often impossible to know who the fingerprint belongs to, and it often needs to be signed. Moreover, fingerprints can pollute fingers and are suspected of degrading personality, so signature is the most scientific and reliable method. In rural areas, quite a few people can't read. They have difficulty in signing, so they have to be fingerprinted. Of course, the altered part of the transcript can only be printed by handprint because it cannot be signed.

At present, the legal system of identification in China is still blank. The General Principles of the Civil Law of People's Republic of China (PRC) has only abstract provisions on the right to name. Signing, stamping and fingerprinting are all inherited practices, and there is no clear legal provision.