v4 · RFC 9562 §5.4
Random
16 random bytes, six of the bits overwritten with the version and variant.
919108f752d143209bacf847db4148a8
122 random bits wearing a 6-bit uniform. Step through the five fields.
the recipe
random:919108f7-52d1-3320-5bac-f847db4148a8
overwrite:xxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxxx
final:919108f7-52d1-4320-9bac-f847db4148a8
odds of a collision
1 in 1.1 × 10¹³ that any two are equal.