A signature (from Latin signare, "to sign") is a handwritten (and sometimes stylized) depiction of someone's name, nickname or even a simple "X" that a person writes on documents as a proof of identity and intent. The writer of a signature is a signatory. Similar to a handwritten signature, a signature work describes the work as readily identifying its creator. A signature may be confused with an autograph which is chiefly an artistic signature and may be published or viewed freely depending on the country. (see Autograph#Copyright])
Function and types of signatures
The traditional function of a signature is evidential: it is to give evidence of:
For example, the role of a signature in many consumer contracts is not solely to provide evidence of the identity of the contracting party, but rather to additionally provide evidence of deliberation and informed consent. This is why the signature often appears at the bottom or end of a document.
In many countries, signatures may be witnessed and recorded in the presence of a Notary Public to carry additional legal force. On legal documents, an illiterate signatory can make a "mark" (often an "X" but occasionally a personalized symbol), so long as the document is countersigned by a literate witness. In some countries, illiterate people place a thumbprint on legal documents in lieu of a written signature.
There are many other terms which are synonymous with 'signature'. In the United States, one is John Hancock, named after the first of the signatories of the United States Declaration of Independence.
The signature of a famous person is sometimes known as an autograph, and is then typically written on its own or with a brief note to the recipient. Rather than providing authentication for a document, the autograph is given as a souvenir which acknowledges the recipient's access to the autographer.
In the United States, signatures encompass marks and actions of all sorts that are indicative of identity and intent. The legal rule is that unless a statute specifically prescribes a particular method of making a signature it may be made in any number of ways. These include by a mechanical or rubber stamp facsimile. A signature may be made by the purported signer. Alternativly someone else duly authorized by the signer acting in the signer's presence and at the signer's direction may make the signature.
Many individuals have much more fanciful signatures than their normal cursive writing, including elaborate ascenders, descenders and exotic flourishes, much as one would find in calligraphic writing. As an example, the final "k" in John Hancock's famous signature on the US Declaration of Independence loops back to underline his name. This kind of flourish is also known as a paraph.
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