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Discover how blockchain oracles connect real-world data with smart contracts to power Web3 applications with reliability and security.

A Comprehensive Guide to Blockchain Oracles

blockchain oracles

smart contracts

decentralized oracles

intersubjective data

optimistic oracle

prediction markets

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Learn how to stake $UMA, vote on disputes, and earn up to 30% APR. Help secure onchain truth and ensure data integrity across the DeFi ecosystem.

How to Vote with Your $UMA Tokens—Earn Up to 30% APR

Onchain Verification

Staking Rewards

Optimistic Oracle

Prediction markets are booming in 2024—and oracles are key. Learn how UMA's Optimistic Oracle can help you build reliable and decentralized prediction markets.

Why Prediction Markets Need Oracles

Prediction Markets

Decentralized Oracles

UMA Optimistic Oracle

Developer Tools

Learn about prediction market disputes and the challenges they present in the DeFi space. Discover how UMA's Optimistic Oracle resolves disputes onchain.

What is a Prediction Market Dispute?

Prediction Markets

Optimistic Oracle

Explore the rise of prediction markets like Polymarket, secured by UMA's Optimistic Oracle. Learn how they offer reliable, real-time insights, often outperforming news sources.

What is a Prediction Market?

Prediction Markets

Optimistic Oracle

Onchain Settlement

Morpho lending markets now support OEV capture with Oval

Vega Protocol integrates Optimistic Oracle for Points Futures Markets

optimistic oracle

Nexus Mutual has integrated oSnap

DeFi liquidations are broken. Oval is the solution

Oval feature image

Liquidations are crucial to DeFi. But they’re broken

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