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Giấy phép số 4978/GP-TTĐT do Sở Thông tin và Truyền thông Hà Nội cấp ngày 14 tháng 10 năm 2019 / Giấy phép SĐ, BS GP ICP số 2107/GP-TTĐT do Sở TTTT Hà Nội cấp ngày 13/7/2022.
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CZ and Star Xu, founders of the two largest cryptocurrency exchanges by trading volume, Binance and OKX, are engaged in a heated public spat on X. They exchange accusations of contract fraud, long-standing dishonesty, and personal misconduct. CZ is the founder of Binance, the world's largest exchange by trading volume; Star Xu is the founder of OKX, the fourth-largest. The dispute traces back to 2014 when CZ worked at OKCoin, the predecessor of OKX. Star accuses CZ of forging a company contract, citing a YouTube video and QQ chats that he says were published 12 years ago. According to Star, CZ's explanation then was that his account was hacked by an employee Star hired. Star finds that explanation implausible. CZ's new book, written in four months while serving federal prison time for violating anti-money-laundering laws, offers his personal view of his time at OKCoin. Summaries of the book's contents say CZ argues that rivals used FUD (fear, uncertainty, and doubt) strategies to damage his reputation at the time. Star does not stop at contract disputes; in a post on April 8, he calls CZ a 'systematic liar' with 'unchanging nature,' listing a series of statements he considers false, including the story of CZ joining and leaving OKCoin, contractual disputes with Roger Ver — an early Bitcoin investor, allegations of market manipulation, and even claims about CZ's personal life. The $1 billion bet is the first time CZ has directly responded to Star's accusations. This public feud has drawn strong reactions from the crypto community on X, with hundreds of comments and over a million views on Star's posts. Some users urged Star to accept the bet, arguing that not addressing the core issue signals avoidance. Others warned that the dispute is distracting an industry seeking credibility with regulators. The timing is notable: both Binance and OKX are pursuing licenses in multiple jurisdictions. CZ completed a four-month federal sentence in 2024 after pleading guilty to not fully maintaining an AML program at Binance. Since then, he has positioned himself as a veteran in the digital assets space, investing in education, artificial intelligence (AI), and blockchain projects. Meanwhile, Star Xu — who has led OKX since its days as OKCoin in 2013 — is pursuing a robust global expansion strategy, obtaining regulatory approvals in multiple markets. Recently, he announced investment in CAEX, a Vietnamese crypto exchange operator linked to VPBank, with OKX joining as a strategic partner to help CAEX meet the minimum capital requirement of 10,000 billion dong.

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