Randomized Delegated Proof of Stake (Roll-DPoS) is a blockchain consensus mechanism.
IoTeX Explained #2 - Roll-DPoS Consensus
https://www.youtube.com/watch?v=ysdFgTt70Lw
November 6, 2018
Roll-DPoS k : A Randomized Delegated Proof of Stake Scheme for Scalable Blockchain-Based Internet of Things Systems
Short Paper Xinxin Fan Qi Chai
https://iotex.io/academics-rolldpos.pdf
Academic