The same format represents what mean?
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Globally Unique Identifier (English: Globally Unique Identifier, abbreviation: GUID; Pronunciation is/? ɡ u?? D/or/? ɡ w? D/A) is A unique identifier generated by the algorithm, usually expressed as 32 hexadecimal digits (0-9, A - F) consisting of A string, such as: {ec2020-3 aea - 1069-21 b30309d A2DD - 08002}, it is essentially A 128 - bit binary integer, GUID the term is sometimes also specifically to Microsoft for UUID standards implementation,GUID main purpose is to produce the only digital completely, in an ideal world, no computers and computer cluster is going to generate two the same GUID, GUID is big enough, the total reached $2128 (3.4 x 1038), so the possibility of randomly generated two same GUID is very small, but not to zero, so the algorithm used to generate the GUID are often joined the nonrandom parameters (e.g., time), to ensure that won't happen this duplication, (see chapter)