There is quite versatile technical description of a prject in the whitepaper, you can find it on arcblock.io For those people who find whitepaper reading too complex or timeconsuming here is a recent interview by Crypto Lark with Robert Mao from ArcBlock. This discussion is also pretty long one with many questions answered but worth seeing 100% https://www.youtube.com/watch?v=WmLn9OUEMxw