Peercoin Peercoin is an altcoin. Altcoin is a cryptocurrency that is not bitcoin. Altcoins often present themselves as a better alternative to Bitcoin; Peercoin is the first altcoin to target Bitcoin’s high energy consumption problem. In addition to energy efficiency, Peercoin developers aim to provide high security.  The Bitcoin system requires miners to solve complex mathematical problems to support transactions on the blockchain. The first miner to solve a given …