1.- The miners' computers, called nodes, collect and package the individual Bitcoin transactions in the last ten minutes into a block. 2.- Each node competes with the other nodes in the network to solve a complicated cryptographic problem and thus become the first to validate the new block. 3.- The first miner to solve the problem transmits his success to the entire network. 4.- Then, other nodes check if their solution is correct. If it is, the new block is added to the chain and the whole process starts over. 5.- By being the first miner to solve the problem, you are rewarded with an amount of new currency, plus network commissions (the amount of money that users pay to have their transactions processed faster).