Signature (disambiguation)

A signature is a hand-written, possibly stylized, version of someone's name, which may be used to confirm the person's identity. The writer of a signature is a signatory or signer.

Signature or signatory may also refer to:

Businesses and organizations[edit]

Signature (charity), trading name of UK-based Council for the Advancement of Communication for Deaf People (CACDP)
Signature (whisky), a brand of Indian whisky
Signature, a brand of the clothing company Levi Strauss & Co.
Signature Books, a publisher of Mormon works
Signature Digital Menus, a company specializing in the provision of digital menu boards
Signature Flight Support, a British fixed-base operator
Signatures Restaurant, a restaurant formerly owned by Washington lobbyist Jack Abramoff
Signature School, a charter school in Evansville, Indiana spanning grades 9–12
Signature Team, a French motor racing team
Signature Theatres, a movie theatre chain in California, Hawaii, and Montana operated by Regal Entertainment Group
Signatory Vintage Scotch Whisky Company, a Scottish company that owns the Edradour distillery

Computing[edit]

Signature block, text automatically appended at the bottom of an e-mail message, Usenet article, or forum post
Type signature, which defines the inputs and outputs for a function or method
Electronic signature, or e-signature, refers to data in electronic form, which is logically associated with other data in electronic form and which is used by the signatory to sign.

Cryptography[edit]

Blind signature, digital signature in which the content of a message is disguised
Digital signature (or public-key digital signature), a method for authenticating information
Digital Signature Algorithm, a United States Federal Government standard
Electronic signature, a signature imputed to a text via one or more of several electronic means, or cryptographic means to add non-repudiation and message integrity features to a document
ElGamal signature scheme, based on the difficulty of computing discrete logarithms
Key signature (cryptography), the result of applying a hash function on a key
XML Signature, a W3C recommendation that defines an XML syntax

Mathematics[edit]

Signature (logic), description of a set of function and relation symbols in mathematical logic
Signature (permutation), a measure for the number of pairs a permutation maps out of order
Signature of a real quadratic form
- Metric signature of the metric tensor on a pseudo-Riemannian manifold
- Signature (topology) of a 4k-dimensional compact oriented manifold
Signature of a knot, in knot theory
Prime signature, the multiset of exponents in the prime factorisation of a number
Signature (matrix), the difference of the positive and negative eigenvalues of a matrix

Music[edit]

Key signature, a series of sharp or flat symbols placed on the staff, designating notes that are to be played one semitone higher or lower
Signature (Moya Brennan album), a 2006 album by Irish musician Moya Brennan
Signature (Joe album)
Signature (Patrice Rushen album)
Signature Records, a mid-20th century United States-based record label
Signature song, the one song that a popular and well-established artist is identified with
Time signature, a notational device used to specify how many beats are in each bar and which note value constitutes one beat

Science[edit]

Acoustic signature, a combination of acoustic emissions
Doctrine of signatures, the notion that the appearance of plants is a function of their celestial influences
Isotopic signature, a characteristic set of ratios of stable or unstable isotopes
Metric signature, in physics, refers to the form of a metric tensor: the sign of the diagonal components constitutes its "signature"
- Signature change, in relativity
Radar cross-section
Spectral signature, the specific combination of reflected and absorbed electromagnetic (EM) radiation at varying wavelengths which can uniquely identify an object

Other uses[edit]

Seal (East Asia), with sometimes a short inscription
Signature (bookbinding)
Signature (dance group) (born 1979), British Bhangra act in the 2008 series of the television show Britain's Got Talent
Signature Bridge, over the Yamuna river, Delhi, India
Signature crime, a crime which exhibits characteristics unique to an offender's psychology
In bookbinding, an alternative word for section (bookbinding)
Signature mark, a mark at the bottom of a gathering to assist the bookbinder in collation
Signature Place, a residential skyscraper located in St. Petersburg, Florida
Signature (typography journal), a 20th-century journal published in Britain