Chainlink is an oracle network that provides smart contract developers with reliable and accurate data infrastructure and tooling for blockchain applications. It uses Chainlink Core to manage data requests and Chainlink Adapter to bridge between nodes and external data sources, ensuring data is processed and sent to the blockchain efficiently. Chainlink’s hybrid consensus algorithms, Delegated Proof of Stake (DPoS) and Proof of Authority (PoA), enable quick and consistent data transport.