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Meet the 'Unicorn': One of the most expensive Rolex watches in the world

This is how blockchain can give 'invisible' people an ID

Over one billion people worldwide don't have any form of identification, making it difficult to access many of the social institutions the developed world takes for granted. A UN organization, the World Food Program (WFP), is testing whether blockchain, the technology that powers bitcoin and ethereum, could solve this ID problem.
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