- **Epistemic status:** #seedlings A Universally Unique Identifier (UUID) is a 128-label that when generated using the standard method makes the UUID unique. The uniqueness is based on probability, since UUID's are not dependent on a central registration authority or communicate with external parties. The probability of generating a non-unique UUID is not zero, but low enough to be negligible. The UUID standard was established by the Open Software Foundation (OSF) as part of the Distributed Computing Environment (DCE). --- ## References - “Universally Unique Identifier.” In _Wikipedia_, May 31, 2022. <https://en.wikipedia.org/w/index.php?title=Universally_unique_identifier&oldid=1090717309>.