Crypto-based prediction marketplace Polymarket apologized on its Discord server for what it described as an “unprecedented situation,” after users flagged apparent manipulation of market results by UMA whales.
UMA is Polymarket’s oracle system whereby the results of betting markets are determined by recourse to external sources of data, and by staking UMA tokens behind a particular resolution. For example, if there were a market that allowed users to predict whether the sun would rise…
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https://decrypt.co/311634/polymarket-allegations-oracle-manipulation
