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What is UUID

UUID is the abbreviation of Universally Unique Identifier (Universally Unique Identifier), which is a standard for software construction and is also part of the Open Software Foundation organization in the field of distributed computing environments. UUID is a 128-bit value, which can be calculated by a certain algorithm. Commonly used UUIDs can be shortened to 16 bits for efficiency. UUID is used to identify the attribute type and is regarded as a unique identifier in all space and time. In general, no UUID generated anywhere that can guarantee that this value is truly unique will have the same value. One benefit of using UUIDs is that new identifiers can be created for new services. The standard UUID format is: xxxxxxxx-xxxx-xxxx-xxxxxx-xxxxxxxxxx(8-4-4-4-12).

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