Glossary

Oracle

The party — human, on-chain, or hybrid — that reads the resolution source and posts the official market outcome.

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Frequently asked questions

What does oracle mean in prediction markets?

The party — human, on-chain, or hybrid — that reads the resolution source and posts the official market outcome.

How does oracle work in practice?

On Kalshi, the oracle is Kalshi itself, regulated by the CFTC. On Polymarket, the oracle is UMA, a decentralized network of token-holding voters.