Oracle Definition
A blockchain oracle is a third-party service that acts as a secure, decentralized bridge between a blockchain's smart contracts and the external, real-world dat
A blockchain oracle is a third-party service that acts as a secure, decentralized bridge between a blockchain's smart contracts and the external, real-world data and systems (off-chain), enabling the execution of complex, data-driven agreements. By providing verifiable data inputs and outputs, oracles solve the "oracle problem," which is the inherent inability of a blockchain to access information outside its own network.