A known local hash identifies the downloaded artifact. Remote presence verification does not prove a remote cryptographic hash. Local filesystem copies are checked against their stored hash and size.
This is what happens when you've been playing this game for way too long
Game is Half Life 2 - showcasing half life 2 glitches and tricks, bhopping, back hopping, etc.
hl2 glitches and shit
mate i h4cked into the combine database in hl2 and got this video out of the mainframe