Last night's hottest news roundup! Fill in the information gap in 1 minute | 5/21

Bitcoin rebounded to above $78,000, up about 1.7% in 24 hours. If it breaks through $80,000, the cumulative short liquidation intensity on major CEXs may reach $947 million. - Altcoin are rotating and gaining momentum, with JTO up over 32% in 24 hours, HYPE up over 18%, ZEC up over 17%, and SUI up over 8%. - The Map Protocol/Butter Network cross-chain bridge was attacked on Ethereum and BSC. The attackers illegally minted approximately 1000 trillion MAPO tokens and profited approximately 52.2 ETH. The related bridge and ButterSwap have been suspended. The Federal Reserve is seeking public comment on a “streamlined master account” framework that would allow eligible fintech and crypto companies to access its payment system for clearing and settlement, and recommends that regional Fed banks suspend new Tier 3 master account applications until December 2026. SpaceX disclosed in its S-1 filing that it holds 18,712 bitcoins at a cost of approximately $661 million, with a market value of approximately $1.45 billion at current prices. - Sui launched a gas-free stablecoin transfer feature and received support from Fireblocks, reducing transaction fees for various stablecoins such as USDsui, USDC, and FDUSD to $0. Anthropic's Q2 revenue is projected to surge to $10.9 billion, with an operating profit of $559 million for the first time. The U.S. SEC chairman is seeking public comment on “prediction market ETFs,” indicating that regulators are still assessing the risks and mechanisms of this new type of product. OpenAI is reportedly set to secretly file for an IPO as early as this Friday, and is working with Goldman Sachs and Morgan Stanley. Its private valuation has already exceeded $850 billion. The White House has briefed companies such as OpenAI and Anthropic on an AI executive order and a pre-release evaluation framework for models, with the order potentially being signed as early as Thursday.