Illustration for crypto article "What is an Oracle?"
What is an Oracle?
Bringing reliable real-world data into blockchains
Oracles let blockchains connect to external data sources. They do this by reliable sourcing data off the blockchain for decentralized applications to execute software on it. Without oracles, smart contracts can’t work. And this would limit what's possible on-chain, such as much of what we enjoy on Ethereum like DeFi.
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Posted on
Nov 18, 2021
More by Julia Fryziuk View profile
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