@tanshuming33
Oracles (e.g., Chainlink) feed real-world data (sports scores, stock prices) to blockchains for use in smart contracts. They enable DeFi price feeds, insurance payouts based on weather, and dynamic NFTs. Decentralized oracles aggregate multiple sources to avoid manipulation. Without oracles, blockchains can’t interact externally—making them critical infrastructure. Use cases expand to cross-chain interoperability and enterprise systems.
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