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Core member of the Ethereum Foundation, Josh Stark, will be leaving, having led several major upgrades including The Merge

According to The Block, Josh Stark, a key figure at the Ethereum Foundation (EF), announced his resignation after five years and will officially step down at the end of the month. Stark joined the Ethereum Foundation in 2019, initially working in the special projects team, and later rose to leadership, collaborating with EF Chair Aya Miyaguchi, Ethereum founder Vitalik Buterin, and co-executive directors Hsiao-Wei Wang and Bastian Aue.He is one of the most prominent members of the foundation's external image and has led several significant advancements in Ethereum, including the "The Merge" upgrade that transitioned from proof of work to proof of stake, as well as subsequent upgrades like Dencun, Fusaka, and Pectra. During last year's leadership adjustments at the foundation, he was appointed as the "co-manager" of the EF board and recently took on the role of co-chair of the "trillion-dollar security" initiative.Last month, Stark co-authored a strategic blog post on Ethereum with Josh Rudolf and Julian Ma, outlining Ethereum's latest scaling direction and its relationship with the Layer 2 ecosystem. Stark stated, "I haven't planned for the future yet; I just want to take a good rest and spend time with family and friends." This resignation occurs against the backdrop of ongoing changes at the Ethereum Foundation.Last year, the foundation underwent significant leadership adjustments, refocusing its strategic priorities on scaling the Ethereum mainnet and core cypherpunk values; Tomasz K. Stańczak also resigned from his co-executive director position at the end of February this year, having served for less than a year. On the same day, Trent Van Epps also announced his departure from EF to fully dedicate himself to Protocol Guild, the independent funding organization for Ethereum core developers that he founded.

Robinhood excludes some prediction market contracts due to concerns about market manipulation and insider trading risks

As Robinhood accelerates its layout in the prediction market, it has proactively excluded certain contract products due to concerns that they may foster market manipulation and insider trading risks. Robinhood UK President Jordan Sinclair stated that the company is highly attentive to market abuse issues and will not offer all prediction markets or event contracts to users, but will selectively launch products that are more suitable for customers.Recently, several "precise betting" incidents have raised regulatory concerns. For example, there were unusually large bets placed on Polymarket before U.S. actions against Iran; Israeli regulators have also sued two individuals who used confidential information to place bets. Additionally, "mention markets" (such as words that will appear in a speech being bet on) have been explicitly excluded from Robinhood's product range due to their susceptibility to manipulation.Currently, Robinhood primarily provides compliant prediction market services through partnerships with Kalshi and ForecastEx, prioritizing regulated platforms to reduce information abuse and cross-border compliance risks. In contrast, the less regulated Polymarket allows users to trade through cryptocurrency wallets with relatively loose identity verification.Robinhood previously anticipated that prediction markets would become an important growth engine, with CEO Vlad Tenev stating that this business could become one of the fastest-growing segments by 2025, potentially driving the formation of a trillion-dollar annual trading scale in the future.
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