Pulse is a Pow/PoS hybrid, that uses the algorithm SHA256D, developed from Bitcoin's algorithm. Pulse allows decentralized and instant payments to anyone in the world. Pulse (abbreviated PULSE), also known as Pulse and Peer-to-Peer Coin is the first cryptocurrency design introducing proof-of-stake consensus as a security model, with a combined proof-of-stake/proof-of-work minting system. Pulse is based on Bitcoin while introducing many important innovations to cryptocurrency field including new security model, energy efficiency, better minting model and more adaptive response to rapid change in network computation power.