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What Is the ‘Oracle Problem’ in Blockchain?

The Oracle Problem is the challenge of securely and reliably getting external, off-chain data into a trustless smart contract environment. If the data feed (the oracle) is compromised or inaccurate, the smart contract will execute faulty logic, undermining the entire system's trustlessness.

What Is the “Oracle Problem” in Blockchain Development?
What Is the ‘Oracle Problem’ in Integrating Real-World Data with a Blockchain?
What Role Does an Oracle Play in a Smart Contract’s Execution?
What Is the “Oracle Problem” in the Context of Smart Contract Security?