BUMO is a next-generation commercial-grade public Blockchain for ubiquitous and trusted value transfer, which is aimed to build a decentralized application ecosystem featured with extensive digital trust, free-flowing value and public-sharing apps. Technological Advantages1.Improved Two-layer Consensus Protocol:The innovative DPoS+BFT consensus algorithm for two-layer multiple chains. A multi-child structure is supported and validators selection is dynamic. It will improve transaction processing and serve diversified scenarios. 2.Two-layer Polymorphic Architecture for Multi-child Blockchain:The multi-child blockchain system is featured with a two-layer multiform structure, in which “two-layer” means the main chain and child chains,and “multiform”means the different technical features among the main chain and child chains. 3.Inter-Chain for Routing Value across Blockchains:Bridging different main chains. Both homogeneous and heterogeneous Blockchains can be connected. Value can be routed among different main chains. The InterChain links main chains, just like the router in traditional Internet. 4.Developer-friendly Smart Contract:To ease the development of smart contract, popular programing languages are extended, like JavaScript, C/C++, Python, etc. Trustworthy data feed is proposed for smart contract. The smart contract is turing-complete as well.