Miners of bitcoin will soon face a halving of the reward for operating the most popular cryptocurrency, in a pivotal event that is a test of survival, industry commentators say.The halving, held every four years and next due this month, exposes the weakest mining companies and individuals because it slashes their main source of income, according to experts.Bitcoin is created as a reward when computers solve complex puzzles to decide which miner wins the privilege to validate the block and... Read this story
