05:30:00 +07:00 Jack Dorsey’s payments company, Block, is building its own bitcoin mining system - It was reported previously that Dorsey was working with Gridless to setup Bitcoin mining operations in several African countries. He's also been designing his own 3nm silicon chips tailored for mining and creating a mining rig product to help increase mining decentralisation globally, making it much easier for anyone to setup mining operations. Pretty cool. # www.cnbc.com