Chainlink oracle [in progress]

This post is part of our Oracles Study Group. Take a look there to learn more about related topics.

Chainlink is a decentralized network of oracles that enables smart contracts to securely interact with real-world data and services that exist outside of blockchain networks.1

Chainlink 2.0 creates a framework for multiple interoperating Decentralized Oracle Networks (DONs), which each consist of a collection of nodes that can transfer data bidirectionally and perform decentralized off-chain computation using various consensus protocols.2

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