Awesome short movie, will make you smile.

val·i·date [val-i-deyt]
1.to make valid; substantiate; confirm: Time validated our suspicions.
2.to give legal force to; legalize.
3.to give official sanction, confirmation, or approval to, as elected officials, election procedures, documents, etc.: to validate a passport.

Here it is used in the form of giving approval for people. Validating who they are, and what they do.