Chainlink: Chainlink is a decentralized oracle network that securely connects smart contracts on blockchains like Ethereum to real-world data and systems. Founded in 2017 by Sergey Nazarov and Steve Ellis, it solves the "oracle problem" by providing reliable, tamper-proof data feeds for DeFi, insurance, and gaming applications. Chainlink oracles deliver price data, weather information, and API data to smart contracts, enabling them to execute based on external conditions. Its network uses cryptographic proofs and economic incentives to ensure data integrity. Chainlink is widely adopted across the blockchain ecosystem, powering critical financial applications. With ongoing development in cross-chain interoperability and decentralized computing, Chainlink remains foundational infrastructure for the Web3 economy, ensuring smart contracts can interact securely with the outside world.
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