ReapChain aims to establish a safe and transparent ecosystem of the blockchain industry for all the DApp (Decentralized Application) service providers by providing a usable blockchain. ReapChain is a hybrid blockchain with a Shell-Core Structure. It solves the trilemma of existing blockchains and tries to implement the integration of blockchain and IoT industry by resolving the security and mass data processing problems of the existing IoT market through PID of things and distributed storage service of ReapMiddleChain.” “In the IoT industry, issues regarding security, authentication, and safety have been solved by relying on intermediaries. However, this centralized method has several side effects in terms of cost, security and reliability. ReapChain offers a new hybrid blockchain that can solve trillemma of the existing blockchains “scalability, security, and decentralization” through a unique consensus algorithm and ReapMiddleChain, and enable the distributed processing of a large amount of data generated from the IoT industry. In addition, ReapChain plans to improve existing IoT system by preventing data forgery and authenticating each device based on PID of things. Core competency of ReapChain’s technologies serves to establish ReapChain BaaS. And IoT specific platform with enhanced transparency and security is built utilizing ReapChain technologies to provide a secure and transparent blockchain ecosystem. Vision To establish a new hybrid blockchain with Shell-Core structure unique to ReapChain that solves the trilemma of existing blockchains. ・ To develop a double-layered chain structure that connects with various main net protocols. ・ To create a real-time data processing algorithm for DApp through the pre-confirm process. ・ To create a decentralized algorithm through the PoDC consensus structure. To establish a multi-layered chain tailored to the characteristics of each industry through ReapMiddlechain. ・ To establish a blockchain by blockchainifying the end-to-end section through the middle chain that is unique to the IoT industry: ReapChain BaaS ・ To establish a development environment, Reap SDK, that enables non-professionals of blockchain to develop as well. ReapChain is creating a new IoT Blockchain world with technology that has both complete security and transparency.