OracleChain intends to meet the demands of the Oracle (oracle machine) in the EOS ecosystem and adopts the autonomous Proof-of-Reputation & Deposit（PoRD）mechanism to build a decentralized Oracle technology platform based on EOS. It provides real-world data to the blockchain, making the blockchain serve life efficiently. In addition to Oracle services that provide real-world data to the blockchain, Oracle services that provide cross-chain data are also offered. Given that OracleChain can accomplish the functions of several prediction market applications, such as Augur and Gnosis, OracleChain can also support smart contract businesses that require high-frequency access to outside data in certain scenarios, such as Robo-Advisor. Focused on landing of Dapps in EOS ecology, The OracleChain team has made an important exploration in technology, ecology, and services.