[web2py] digitally sign static files?

[JimK]

I'm creating a webapp that would list some videos that would be
displayed only to logged in users.  My question is, how can I keep
people from stealing the URLs to my videos in my static folder and
downloading my assets?  I can digitally sign the static URLs but where
would I put the URL.verify?  Is there another way that I'm unaware
of??

Thanks,

JimK