Ngin is a decentralized peer to peer blockchain-end network and serve basic web search service, designed to be used by developers or merchants as not only payment but APP development platform. The search engine can do plenty of things. Like google’s services, all from its search engine. So based on the blockchain-end search engine, The Ngin, the developer can build attractive APP and the merchant can perform a transaction without considering the source of the user. Most important, the user doesn't need to consider their private info because on the chain it will be anonymous.