Definition ∞ Decentralized oracle networks supply external real-world data to blockchain-based smart contracts in a secure and verifiable manner. These networks comprise multiple independent nodes that collectively retrieve and validate off-chain information. They are essential for enabling smart contracts to interact with events and data sources outside their native blockchain.
Context ∞ The accuracy and resilience of decentralized oracle networks are paramount for the reliable execution of smart contracts. Debates concern effective data aggregation methods and robust defense against data manipulation. A critical future development involves expanding the types of data supported and increasing the networks’ resistance to various attack vectors.