[clug] Unique Id's and CD's

Jim Croft jim.croft at gmail.com
Fri May 8 01:11:50 GMT 2009

To hit an unintentional duplicate, you would have to be unlucky.

"... only after generating 1 billion UUIDs every second for the next
100 years, the probability of creating just one duplicate would be
about 50%. The probability of one duplicate would be about 50% if
every person on earth owns 600 million UUIDs" (source: (cough)

On Fri, May 8, 2009 at 9:08 AM, Robert Edwards <bob at cs.anu.edu.au> wrote:

> If you only want IDs for data CDs that you produce yourself, and you
> can live with someone else accidentally/deliberately copying the same
> ID, then UUIDs work. You can also place an encrypted string with the
> UUID, creation date, author etc. on the CD as well, to increase your
> level of confidence.

Jim Croft ~ jim.croft at gmail.com ~ +61-2-62509499 ~

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