UMA (UMA) perpetual market

UMA, which stands for Universal Market Access, is an Ethereum-based protocol best known for its optimistic oracle, a system for bringing real-world data and answers onto the blockchain. Founded by Hart Lambur and Allison Lu, former Goldman Sachs traders, and launched in 2020, UMA lets applications ask questions and have answers proposed and then challenged during a dispute window, with UMA token holders acting as a decentralized court that votes to resolve contested claims. This mechanism is designed to verify information that cannot be produced by a simple price feed. The optimistic oracle underpins a range of applications, and notably powers Polymarket, the prediction market platform, for resolving event outcomes. The UMA token is used for staking, voting on disputes and governance. UMA is regarded as an important piece of oracle and data-verification infrastructure in decentralized finance.