# On-Chain Oracles ⎊ Area ⎊ Resource 4

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## What is the Mechanism of On-Chain Oracles?

On-chain oracles serve as a mechanism to securely bring external data into smart contracts on a blockchain. These protocols act as data feeds, providing real-world information such as asset prices, weather data, or election results to decentralized applications. The integrity of the oracle mechanism is paramount for the reliable execution of smart contracts, especially in derivatives and lending protocols.

## What is the Data of On-Chain Oracles?

The data provided by on-chain oracles must be accurate, timely, and resistant to manipulation. Data feeds are often aggregated from multiple sources to prevent single points of failure and ensure robustness against malicious actors. High-quality data is essential for accurate pricing of options and derivatives, as well as for triggering liquidations in collateralized positions.

## What is the Integrity of On-Chain Oracles?

The integrity of on-chain oracles is a major vulnerability for DeFi protocols. If an oracle feed is compromised, it can lead to incorrect contract execution, resulting in significant financial losses for users. To mitigate this risk, protocols employ various security measures, including decentralized oracle networks and economic incentives for data providers to act honestly.


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## [Risk-Aware Fee Structure](https://term.greeks.live/term/risk-aware-fee-structure/)

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**Original URL:** https://term.greeks.live/area/on-chain-oracles/resource/4/