Signature method: handwritten signature.
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To sign, that is, to write one's name, especially to express agreement, recognition, responsibility or obligation.
At present, there are more interpretations of signatures, such as digital signatures and artistic signatures. Or a star's meaningful signature, also called signature.
In 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.