Bohr is a global blockchain open source community project, which is a customizable blockchain infrastructure composed of microkernels and functional modules. Bohr has developed a set of industrial blockchain technology standards, following the principles of hot swapping, modularization, and parallel expansion, providing alternative functional modules such as smart contracts, multi chain parallelism, consensus mechanisms, P2P networks, storage, encryption, and multi-level accounts.Vision: BOHR aims to address the common issues of transaction congestion, high transaction fees, and long transaction confirmation times in existing blockchains, with the goal of "extremely light, fast, interesting, and extensive", and build the world's first high-performance and expanded public blockchain network, supporting massive concurrent transactions and faster transaction confirmation.BOHR has an innovative two-layer consensus mechanism and COSH consensus algorithm, which periodically selects several super nodes, grants them notarization rights to data units, and receives block rewards based on their effective notarization units. BOHR focuses on creating a simple and easy-to-use decentralized digital token underlying blockchain, utilizing declarative smart contracts that enhance expression capabilities, allowing users to freely create and publish digital tokens without the need to write complex smart contract code.BOHR has a scalable wallet that provides security and rich application interfaces for digital tokens, blockchain games, and social networks, allowing new and unique ideas to run smoothly on blockchain, making the use of blockchain a way of life, and making it possible for blockchain to be applied on a large scale in various fields.