3 ms·Entropy. You loose bits to a known source, which reduce entropy of the UUID.by madsbuch 3y agoEntropy. You loose bits to a known source, which reduce entropy of the UUID.dralley 3y ago128 bits is a lot of entropy to go around, though.dtech 3y agoI do feel 74 bits per second is enough though. That would require 2^(74/2) = 137 billion UUIDs generated in a single second for a 50% chance of a single collision.