The world of prediction markets relies on accurate data to ensure fairness. Ethereum co-founder Vitalik Buterin recently highlighted the urgent need for decentralized oracles to combat manipulation, a growing concern in the blockchain community. His call for action stems from allegations that the Institute for the Study of War skewed event results in a prediction market. Decentralized oracles act as unbiased data feeders, pulling information from multiple sources and reducing the risk of centralized control and fraud. This is crucial for building trust in crypto-powered forecasting. This article explores why decentralized oracles are essential and how they work to ensure fair predictions. Let’s delve into the details.