There’s already a 72-bit random part. That should be sufficient to address conflicts.
Incrementing a sequence completely kills the purpose of a UUID, and requires serialization/synchronization semantics. If you need that, just use a long integer.
Incrementing a sequence completely kills the purpose of a UUID, and requires serialization/synchronization semantics. If you need that, just use a long integer.
Anyway, as I said, it was dropped from the spec
If you got a spare 50k kicking around we could set up a test system and find out how likely it is to happen...
An RNG like ChaCha8 can run at about 2 cycles per byte, and extrapolating, 18 cycles for 72 bits. Not far off.