Nanosecond timestamp collisions are common

Re:Nanosecond timestamp collisions are common by madsbuch on Friday July 21, 2023 @06:27AM (#36812151)

Entropy. You loose bits to a known source, which reduce entropy of the UUID.

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Re:Nanosecond timestamp collisions are common by dralley on Friday July 21, 2023 @12:42PM (#36816080)

128 bits is a lot of entropy to go around, though.

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Re:Nanosecond timestamp collisions are common by dtech on Friday July 21, 2023 @03:37PM (#36818534)

I 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.

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