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

 * Signature (charity), trading name of UK-based Council for the Advancement of Communication for Deaf People (CACDP)
 * Signature, a brand of the clothing company Levi Strauss & Co.
 * Signature (dance group) (born 1979), British Bhangra act in the 2008 series of the television show Britain's Got Talent
 * Signature (typography journal), a 20th-century journal published in Britain
 * Signature (whisky), a brand of Indian whisky


 * 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

 * Signature block, text automatically appended at the bottom of an e-mail message, Usenet article, or forum post
 * 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.
 * Signature file, a computer file containing signature data
 * File signature, data used to identify or verify the contents of a file
 * Type signature, which defines the inputs and outputs for a function or method

Cryptography

 * 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

 * 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 (quadratic form), number of positive, negative, or null terms of a quadratic form
 * 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
 * Metric signature of the metric tensor on a pseudo-Riemannian manifold

Music

 * 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, a 2021 EP album by the Filipino singer Morissette
 * 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

 * 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

Bookbinding

 * Signature (bookbinding), a group of sheets folded in half
 * Signature mark, a mark at the bottom of a gathering to assist the bookbinder in collation
 * An alternative word for section (bookbinding)

Other uses

 * Signature Bridge, over the Yamuna river, Delhi, India
 * Signature crime, a crime which exhibits characteristics unique to an offender's psychology
 * Signature Place, a residential skyscraper located in St. Petersburg, Florida