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  1. What Is a Unique Identifier (UID), and Why Is It Important?

    Dec 1, 2025 · A unique identifier (UID) is a sequence of characters or numbers that distinguishes a specific entity from others. UIDs are present and valuable in various fields for determining …

  2. What is a unique identifier (UID)? | Definition from TechTarget

    Sep 4, 2024 · A Universally Unique Identifier (UUID) is a 128-bit hexadecimal number used to uniquely identify data objects or entities on the internet. There is no central UUID issuing …

  3. What Is the UID Number for U.S. Immigration? - LegalClarity

    Aug 9, 2025 · A Unique Identification (UID) number in U.S. immigration is an internal tracking number primarily used by agencies like U.S. Citizenship and Immigration Services (USCIS) …

  4. Unique identifier - Wikipedia

    A unique identifier (UID) is an identifier that is guaranteed to be unique among all identifiers used for those objects and for a specific purpose. [1] The concept was formalized early in the …

  5. Understanding Unique Identifiers: UID, UUID, GUID, CUID, and …

    Aug 10, 2024 · A UUID is a 128-bit number used to uniquely identify information across systems and networks. It’s designed to be unique universally, not just within a single system.

  6. What is a Unique Identifier (UID)? What is It for? - Camcode

    Feb 12, 2025 · What is a unique identifier (UID)? The UID is a program to provide better accountability for their tangible assets. Learn more about UIDs.

  7. What Does UID Stand For? Understanding Unique Identifiers

    A UID is a unique code—either numeric or alphanumeric—that serves as a serial number for products, assets, or records. These identifiers are widely used in RFID systems, inventory …

  8. Understanding Unique Identifiers: What Is A UID? - SysAdminSage

    Jun 10, 2024 · UUID, or Universally Unique Identifier, is a 128-bit number used to uniquely identify information in computer systems. Unlike traditional methods of identification, such as serial …

  9. What is UID in US Visa Application? - ygunu.com

    Feb 22, 2025 · What is UID? UID stands for Unique Identifier. In the context of the US visa application, a UID is a number or code that is assigned to an individual or a visa application for …

  10. UID Number - RapidVisa®

    A UID Number (U=Unique; ID= Identification), as it pertains to U.S. immigration, is the 9-digit alphanumeric code on the CGI website. It is a unique identification number assigned to U.S. …