A "fork" occurs When there are two candidate blocks competing to type the longest blockchain. This occurs less than ordinary disorders Anytime two miners remedy the proof-of-function algorithm in just a shorter timeframe from one another. As the two miners find out a solution for his or her respective candidate http://bitcoin-miner-virus69135.timeblog.net/1899260/the-fact-about-miner-bitcoin-xbox-that-no-one-is-suggesting