₿ **A Polymarket-linked bet on the weather in France forecasts a major data issue**

The incident shows that as more real-world outcomes become tradable, the real bottleneck is not trading itself, but the integrity and certification of the data used for settlement, argues Hallali.

🔗 https://www.coindesk.com/opinion/2026/04/30/a-polymarket-linked-bet-on-the-weather-in-france-forecasts-a-major-data-issue

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