Just add (Type: Mojang) or (Type: Offline) next to the uuid record.

(i'm open to suggestions for better ways to word it ^ )

Can be easily determined by querying the type code.
https://en.wikipedia.org/wiki/Universally_unique_identifier#Versions

Mojang uses v4. Offline mode servers generate uuids based off usernames with v3.

Will be really useful for debugging issues with ip forwarding & the like.

Added in e4e93b1