UMA is an optimistic oracle (OO) that can record any knowable truth onto a blockchain. It tells smart contracts “things about the world” so contracts and markets asking for that data can be settled. The OO has been called “a human-powered truth machine” because it is flexible enough to handle ambiguity and expands the design space possible in web3. UMA’s OO secures a diverse ecosystem of web3 applications, including cross-chain bridges, insurance protocols, prediction markets, and customizable DAO tooling products. The Across bridge, Polymarket prediction markets, and Outcome.Finance DAO tools are some of the use cases for the OO.
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