Interactive Proof of stake
The paper examines decentralized cryptocurrency protocols that are based on the use of internal tokens as identity tools. An analysis of security problems with popular Proof of stake consensus protocols is provided. A new protocol, Interactive Proof of stake, is proposed. The main ideas of the protocol are to reduce a number of variables a miner can iterate over to a minimum and also to bring a communication into block generation. The protocol is checked against known attacks. It is shown that Interactive Proof of stake is more secure than current pure Proof of stake protocols.
ArXiv