CIChain (Cloud-insurance Chain) is the first risk assurance platform to protect the blockchain world. From wallet security protection to transfer loss protection, etc., Yunbao Chain is committed to providing real matching risk protection for the blockchain world. It is an open source blockchain application platform based on Ethereum smart contracts. Cloud security chain developers can customize a wealth of innovative protection products, and each user can use the cloud security chain's CIC tokens to complete the entire risk hedging process of insurance, underwriting and automated claim settlement. The cloud guarantee chain guarantee smart contract realizes the automation of claim settlement, and at the same time disintermediates the guarantee in the blockchain world, which greatly reduces trust costs and operating costs.