Well those first two features are VERY important to base a monetary system upon.
3- is just a Copy/paste. I mean, what are the consensus rules that makes the main chain "The MAIN Chain".
Also, these are all rhetorical questions because there's a reason only people who see glowies behind every screen use the stuff.
Obscurity breeds distrust. Markets only scale in high trust societies. Square that circle and you win the money grand prize.