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Nxt is a second-generation blockchain platform that pioneered the proof-of-stake consensus mechanism, eliminating the need for energy-intensive mining. Built entirely from scratch in Java, it offers a comprehensive ecosystem of features including asset exchanges, voting systems, messaging, and smart contracts through a single integrated protocol. What distinguishes Nxt is its focus on accessibility, scalability, and sustainability compared to earlier cryptocurrencies, along with its emphasis on enabling decentralized applications and features without requiring separate layers.