Tendermint : Consensus without Mining

Cryptocurrencies such as Bitcoin enable users to submit payment transactions without going through a centralized trusted organization. Bitcoin relies on proof-of-work mining to secure consensus which is problematic; mining requires a massive expenditure of energy, confirmation of transactions is slow, and security is difficult to quantify. We propose a solution to the blockchain consensus problem that does not require mining by adapting an existing solution to the Byzantine Generals Problem.