Securely Connecting Smart Contracts to Off-chain Data and Events

on YouTube ↗13m

" summary

Explains how Chainlink’s decentralized oracle network executes on-chain requests by matching on-chain Chainlink nodes to off-chain data providers, runs an aggregation contract that returns a single signed answer, and shows an end-to-end request on the Goerli testnet. Covers the protocol pieces: on-chain request/response contracts, node operators, and an external adapter pattern that fetches APIs, with a live demo of a price feed aggregation returning a verified value.

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