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Polymarket's UMA Token Judges Resolve Crypto Bets

Wall Street Journal Markets •
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Garrick Wilhelm lost a $567 bet on a Hezbollah cease-fire when Polymarket's dispute went to UMA token holders. The British Columbia resident wagered that the militant group would reject a truce, but a voted payout went to the opposing side. This case shows how the crypto prediction market outsources final calls to a decentralized jury.

Unlike rivals like Kalshi, which handle disputes internally, Polymarket uses UMA's system. Token holders vote on ambiguous outcomes, with weight based on their holdings. Most voters remain anonymous, creating a unique but controversial arbitration layer for high-stakes event contracts.

The growing volume of trades and disputes tests this model. While it avoids centralizing power, the token-weighted voting raises questions about influence and fairness. For investors, the system's integrity directly impacts fund safety in a market expanding beyond traditional finance.