This is an explanation of a whitepaper for a new cryptocurrency called Algorand from The Morning Paper:

Algorand can confirm transactions on the order of one minute — whereas Bitcoin takes on the order of one hour — has negligible probability of forking, and achieves 125x the transaction throughput of Bitcoin. The core of Algorand is a new Byzantine agreement protocol called BA★. Participants in BA★ are randomly selected based on a proof-of-stake mechanism that relies on cryptographic sortition.