The International Standard Name Identifier (ISNI) is an identifier system for uniquely identifying the public identities of contributors to media content...

The International Standard Link Identifier (ISLI), is an identifier standard. ISLI is a universal identifier for links between entities in the field of...

digital object identifier (DOI) is a persistent identifier or handle used to uniquely identify various objects, standardized by the International Organization...

The International Standard Book Number (ISBN) is a numeric commercial book identifier that is intended to be unique. Publishers purchase or receive ISBNs...

International Standard Musical Work Code (ISWC) is a unique identifier for musical works, similar to ISBN for books. It is adopted as international standard...

identification (the process of identifying), or an identifier (that is, an instance of identification). An identifier may be a word, number, letter, symbol...

International Standard Book Number (ISBN), a similar unique identifier for books International Standard Musical Work Code (ISWC), a unique identifier...

International Standard Audiovisual Number (ISAN) is a unique identifier for audiovisual works and related versions, similar to ISBN for books. It was...

object identifiers or OIDs are an identifier mechanism standardized by the International Telecommunication Union (ITU) and ISO/IEC for naming any object...

persistent identifier (PI or PID) is a long-lasting reference to a document, file, web page, or other object. The term "persistent identifier" is usually...