I mentioned yesterday Catalonia is checking out giving citizens more control over their identifying information. So what, you might ask? Well, here's a story about how Argentina is partnering with several private-sector providers to build a blockchain platform for citizen ID info that is intended to enable them to get jobs and housing - things they can't do if employers and landlords don't believe the citizens are who they say they are. 

Alleviating poverty and integrating more people into our society and economy - that's a pretty impressive business use.