Pendulum Protocol (hereinafter referred to as PEND) is a secure and scalable decentralized database two-layer protocol, which provides the mainstream blockchain with unlimited verifiable decentralized data oracle machine and computing oracle machine services, connects the smart contract on the chain with the offline Internet data, and provides unlimited verifiable computing power. Developers using Pendulum Protocol and Dapp company consume data through public smart contract data points, rather than a centralized oracle machine based on the blockchain. In this way, Dapp ensures security while utilizing existing data on the Internet, bridging the gap between Web 2.0 and Web 3.0 use cases, empowering more real-world business applications....