# Universally Unique Identifier ## Identification A 128-bit identifier designed to be unique within an intended scope without a central sequence allocator. ## Notebook evidence - [[Scanned_20260730-1946|Scanned_20260730-1946]], PDF page 13. ## Relationships and evidentiary boundary [[Globally Unique Identifier]] · [[Device Identity]] · [[Identity Beneath Presentation]]. The notebook occurrence records research context and page-level proximity. It does not by itself establish ownership, deployment, compromise, coordination, or present-day status.