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    blowdart

    , Proton2 wrote

    *snip*

     

    Can GUIDs be "random" ?

    Read the UUID spec.

    Version 4 UUIDs use a scheme relying only on random numbers. This algorithm sets the version number as well as two reserved bits. All other bits are set using a random or pseudorandom data source. Version 4 UUIDs have the form xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx where x is any hexadecimal digit and y is one of 8, 9, a, or b. e.g. f47ac10b-58cc-4372-a567-0e02b2c3d479.