Nxt is an advanced open source blockchain platform that builds on the functionality of the first wave of pioneering cryptocurrencies like Bitcoin. The Nxt platform includes many core-level features, such as a Decentralized Asset Exchange, Marketplace, and Voting system, all in additional to the NXT digital currency itself. Nxt is easy-to-use, permissionless and gives its users complete freedom in many ways. For example, using the NXT currency as a payment system cannot be restricted, creating a marketplace listing cannot be denied, and, for developers, neither is creating advanced blockchain-based applications through the Nxt Application Program Interface (API).