There is a UUID they use in a example that is 1:1 copied. > For example, the number of random version-4 UUIDs which need to be generated in order to have a 50%

There is a UUID they use in a example that is 1:1 copied. > For example, the number of random version-4 UUIDs which need to be generated in order to have a 50% probability of at least one collision is 2.71 quintillion [...] This number is equivalent to generating 1 billion UUIDs per second for about 85 years, and a file containing this many UUIDs, at 16 bytes per UUID, would be about 45 exabytes, many times larger than the largest databases currently in existence, which are on the order of hundreds of petabytes. https://en.wikipedia.org/wiki/Universally_unique_identifier#Collisions https://en.wikipedia.org/wiki/Universally_unique_identifier#... The probability that they generated the same text 1:1 and a UUID in it by random chance is very, very, very, very slim.