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Universally Unique Identifier

A Universally Unique Identifier is an identifier standard used in software construction, standardized by the Open Software Foundation (OSF) as part of the Distributed Computing Environment (DCE). The most widespread use of this standard is in Microsoft's Globally Unique Identifiers (GUIDs) which implement this standard.

A UUID is essentially a 16-byte number and in its canonical form a UUID may look like this:

550E8400-E29B-11D4-A716-446655440000

See Also