Grayscale Files Hyperliquid ETF Amendment with SEC to Replace Coinbase with Anchorage as Custodian

**April 21: Quantum Computers Won’t Crack 128-Bit Symmetric Encryption Anytime Soon, Expert Argues** Cryptography engineer Filippo Valsorda said this week that real-world quantum computers won’t break 128-bit symmetric encryption (like AES-128) anytime soon—even with the fastest possible development pace. The current "post-quantum cryptography" panic, he noted, stems from a common misunderstanding. In his article *Quantum Computers Do Not Threaten 128-Bit Symmetric Keys*, Valsorda debunked the myth that the Grover algorithm would "halve" a symmetric key’s security (reducing 128 bits to 64 bits of protection). This claim ignores Grover’s critical practical flaw: it can’t be parallelized efficiently. Its steps must run serially, and forcing parallelization would skyrocket total computing costs. Even an ideal quantum computer would need ~2^104.5 operations to crack AES-128—tens of billions of times more expensive than breaking today’s asymmetric encryption (e.g., RSA, ECDSA)—making

April 21st — With U.S. midterm elections on the horizon, former President Donald Trump’s super PAC raised $35.6 million in March, pushing its campaign war chest to $550 million. That total sets a record for a midterm cycle as Trump aims to defend the Republican majority in Congress amid a tight battle. Federal Election Commission (FEC) filings show longtime GOP donor Diane Hendricks—who addressed the 2024 Republican National Convention—provided the bulk of the March fundraising, contributing $25 million. Venture capitalists Marc Andreessen and Ben Horowitz each gave $3 million. The California-based Yocha Dehe Wintun Nation tribal organization donated $2 million. A subsidiary of prison operator GEO Group Inc.—a federal contractor with clients including ICE—contributed $1 million. Amid this cash surge, polls indicate Trump’s 2024 voter coalition is fracturing. Historically, the party holding the White House typically loses House seats in midterms, and Democrats are growing more optimis

April 21st — Binance will add the Binance NFT/USDT, Binance NFT/USD1, ENJ/USDT, GIGGLE/USDT, and ORDI/USDT trading pairs to cross-margin trading today at 16:00 UTC+8, per an official announcement.

April 21st: a16z-backed platform daos.fun founder baoskee shared a farewell message, noting daos.fun laid groundwork for subsequent ICM, Agents, and AI Meta efforts—but the team will halt new DAO launches. The decision stems from the community’s primary focus on speculation and fundamental issues with the "degen-managed hedge fund."

On April 21, according to EmberCN monitoring, a whale wallet at address 0x8ad has netted 143 ETH (valued at approximately $330,000) by actively purchasing aEthWETH (Aave ETH Deposit Certificates). Over the past 13 hours, the whale withdrew 13,000 ETH ($30 million) from a trading platform, swapped it for 13,143 aEthWETH, and then used those tokens to repay its ETH loan on Aave at a 1:1 ratio.

On April 21st, per GMGN monitoring (link: https://t.me/gmgnaibot?start=i_m4TE56o8), Solana-based meme coin BELIEF saw its market cap surge this morning—jumping by over $17 million at one point to hit a new all-time high. As of press time, it has retraced, with its market cap now at $13.2 million, its 24-hour gain narrowed to 18%, and 24-hour trading volume totaling $3.7 million. BlockBeats cautions users that meme coins are extremely volatile, relying heavily on market sentiment and hype while lacking tangible value or real-world use cases. Investors are advised to exercise caution amid these risks.