[rottyguy]

This is an interesting idea. If I want to personalize the urn to my company's uuid, would it be, urn:uuid:mycoid? can it be shorthanded to urn:mycoid?

[zzo38computer]

I do not recommend doing that. Instead, you may wish to either use the plain "urn:uuid:" format, or use a different URI scheme (such as "http") with your company's domain name. A company does not normally have only a single UUID; you can make up additional UUIDs as needed. (If you want to avoid collisions, you can use version 1 UUIDs.)