You'll also need to know what Proof of work is, explained in https://en.wikipedia.org/wiki/Proof-of-work_system
See also https://en.bitcoin.it/wiki/Introduction, or the rest of the wiki, or the StackExchange site.
You'll also need to know what Proof of work is, explained in https://en.wikipedia.org/wiki/Proof-of-work_system
See also https://en.bitcoin.it/wiki/Introduction, or the rest of the wiki, or the StackExchange site.