BD Insider: How the University of Johannesburg is using blockchain to fight certificate fraud

In BD Insider, Letter 110, we covered the University of Johannesburg's plan to issue blockchain-based certificates for graduates and YC’s most valuable African startups.

Where are the “made in Africa” smartphones?

There are at least seven 'made in Africa' smartphone brands, but Transsion Holdings, a Chinese company, remains the top smartphone seller in Africa.