China accounts for more than half of the world’s Bitcoin mining capacity but Jameson Lopp, the co-founder and CTO of Casa, has hosed down fears that Chinese miners are a threat to Bitcoin in a blog post on Aug. 9. Although many people have raised concerns over the concentration of such much hashpower being located in China, Loop pointed out that even in the event of a 51% attack on Bitcoin, attackers are limited in what they can actually do. He explained that attackers can't steal people's Bitcoin arbitrarily, nor change the consensus rules. They can’t reverse valid transactions. The only thing they can do is double ... (full story)