What is Chainlink and how does the LINK oracle network work?

Summary Chainlink is a decentralized oracle network that feeds external data, such as asset prices, weather readings, and economic indicators, into blockchain smart contracts that cannot access that information on their own. The network secures approximately $33.1 billion in total value across 505 protocols, making it the dominant oracle provider by a wide margin over competitors such as Chronicle, RedStone, and Pyth. Chainlink’s Cross-Chain Interoperability Protocol (CCIP) connects more than 70 blockchains and has processed over $18 billion in cross-chain transfer volume, with adoption from Swift’s network of 11,500 member banks. The LINK token has a fixed supply of one billion, with roughly 700 million in circulation and over 45 million locked in staking pools where participants earn variable annual yields of approximately 4.3 to 4.75 percent. Beyond price feeds, Chainlink offers Verifiable Random Function (VRF) for provably fair randomness, Automation for scheduled contract execution, and Data Streams for low-latency market data used by onchain derivatives platforms. Chainlink is often described as the bridge between blockchains and the outside world, but that framing understate...