NEST Protocol is a distributed oracle network, also a permissionless community of token holders, data providers, and validators. As an oracle, NEST Protocol provides a creative solution to certificate on-chain data, e.g. quotes of digital assets. In the NEST network, all data are directly generated on-chain: users(so-called, Quote Miners) upload their own asset price quotes with a certain amount of collateral, and the quotes will be input into NEST's price chain after a fixed verification period. (During the verification period, the users' collateral are open for all forms of arbitrage, only the quotes with no collateral that have been traded will be accepted) While the NEST‘s open network remaining permissionless and decentralized, the quotes and other on-chain data’s reliability and authenticity are secured by the game theory between Quote miners, Verifiers, and Price Callers. (The quote miners are rewarded with NEST token or a type of Ntoken; Verifiers earn profits directly based on the calculation of price deviation) So far, NEST's quote miners are providing real-time quotes for over 50 active trading pairs like ETH/USDT, YFI/ETH, etc. Those quotes are accepted by many Open Price Feed formats and then be used by DEX/ reporters like Cofix and Coinbase Pro.