Polymarket Launches 15-Minute Bitcoin and Ethereum Prediction Markets

The evidence overwhelmingly supports the statement. The most authoritative and relevant sources, which are primary pages from Polymarket's own website, directly confirm all parts of the claim.Source 1, Polymarket's main crypto page, explicitly lists active markets titled "Ethereum Up or Down - 15 minute" and "Bitcoin Up or Down - 15 minute," serving as direct proof of the existence of these specific products for both cryptocurrencies.This is corroborated by multiple other primary sources (Sources 2, 3, 4, and 5), which are specific event pages for these markets. The titles of these pages, such as "October 21, 6:00AM-6:15AM ET," unambiguously show a 15-minute duration. Furthermore, user comments within these pages refer to the "15 minute candle" and "15 minute rounds," reinforcing the market's structure and timeframe from a user perspective. Source 2 also explicitly mentions a link to a related Bitcoin market, confirming its existence alongside the Ethereum one.While several other sources (6, 8, 9, 10) confirm that Polymarket hosts markets for Bitcoin and Ethereum, they do not mention the 15-minute timeframe. However, these sources do not contradict the statement; they are simply less specific. The existence of long-term markets for these assets does not preclude the existence of short-term ones. There is no conflicting evidence provided. The high-authority primary sources are consistent and directly validate the claim.