[Freeswitch-users] UUID - how unique is it?

[Telecube - John]

+rep

I like this answer

:-)

- John
On 21/05/13 12:58 PM, Gabriel Gunderson wrote:
> On Sun, May 19, 2013 at 7:57 AM, Telecube - John <john at telecube.com.au> wrote:
>> Can I count on uuid to be totally unique in my billing records?
> Just for fun...
>
> Number of stars believed to exist in known universe:
> 70,000,000,000,000,000,000,000
>
> Number of *drops* of water estimated to be the world's oceans (U.S. Navy):
> 222,000,000,000,000,000,000,000,000
>
> Number of *unique* UUIDs:
> 340,282,366,920,938,463,463,374,607,431,768,211,456
>
> So, your chances of a collision with *hundreds* of *billions* of truly
> random UUIDs is inconceivably low.
>
> The only thing you really have to worry about are humans and the code
> they write ;)
>
>
> Best,
> Gabe
>
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