Resolver
Last reviewed 2026-08-07
Resolver — definition
A party (usually on decentralized venues) that proposes the outcome of a market, subject to dispute.
On Polymarket, anyone can be a resolver by posting a bond and submitting a proposal to UMA. Successful resolvers earn a small fee; wrong ones lose their bond.
Don't confuse 'resolver' with 'oracle' — the oracle is the system as a whole.
Learn more: How prediction markets work
See also
Frequently asked questions
What does resolver mean in prediction markets?
A party (usually on decentralized venues) that proposes the outcome of a market, subject to dispute.
How does resolver work in practice?
On Polymarket, anyone can be a resolver by posting a bond and submitting a proposal to UMA. Successful resolvers earn a small fee; wrong ones lose their bond.
Sources & further reading
- CFTC — Event contracts explainedU.S. Commodity Futures Trading Commission
- Kalshi — how prices and settlement workKalshi
- UMA Optimistic Oracle documentationUMA Protocol
Last reviewed 2026-08-07 · CollegePredictionMarkets.com