Machinecoin is a free and decentralized peer-to-peer cryptocurrency that is completely open source and uses TimeTravel as a proof-of-work algorithm. Machinecoin operates with no central authority or any banks; managing transactions and the issuing of Machinecoins is carried out collectively by the network itself. Paper Wallets allow to store Machinecoins offline and even much more safer than this can be done with any fiat money. Exchanges can be used to trade Machinecoins with Bitcoins and other cryptocurrencies. Work can be done with Machinecoin either as an employer or as an employee.