Bohr conforms to the development trend of "blockchain +" era, and constructs a complete solution of practical public blockchain ecosystem, which has high scalability, effective security, reliability, decentralization and flexibility to develop a variety of application types. It will allow up to a million transactions per second. Bohr is based on the special basic protocol framework design, intelligent contract execution in the middle layer and the implementation of the upper functional architecture, which makes blockchain technology successful in real large-scale commercial applications.Aiming at the common problems of transaction congestion, high transaction cost and long transaction confirmation time in the existing blockchain, Bohr aims to build the world"s first high-performance development public blockchain network with the goal of "extremely light, extremely fast, extremely interesting and extremely wide", and supports massive concurrent transactions and faster transaction confirmation. Bohr has an innovative double-layer consensus mechanism and cosh consensus algorithm. By using the algorithm, a number of super nodes are selected periodically to give them the notarization right of data units, and they will send out effective notarization units to obtain block rewards. Bohr focuses on building a simple and easy-to-use decentralized digital token underlying blockchain, using declarative expressions to enhance expression ability.Smart contract, users can create and issue digital pass freely without writing complex smart contract code.Bohr has an extensible wallet, which provides security and rich application interfaces for digital token, blockchain games and social networks. It enables new and unique ideas to run smoothly on the blockchain, making the use of blockchain a way of life, and making it possible for blockchain to be widely used in various fields.