Yup, it can absolutely be extracted. It's not hashed or anything like that, it's just a sequence of fields in the order that the spec gives. It's really not even 'extract', it's more just 'read'.

I think people may be misled by the fact that UUIDs are frequently hex-encoded prior to being sent over the wire (or even, stupidly, in the database). It looks like a hash, but it's very much not one.

Edit: This is all referring to RFC 4122, to be clear. It's entirely possible that there are some other UUID schemes out there which do hash their contents.