An address withdrew 80,000 ETH from Binance, worth $184.7 million

**April 21st Update** Per Coinglass data, Coinbase’s Bitcoin Premium Index has stayed positive for 12 straight days, currently at 0.04%. U.S. market buying sentiment continues to strengthen, following a 15-day stretch of negative premiums. **BlockBeats Note** The Coinbase Bitcoin Premium Index tracks the gap between Bitcoin’s price on Coinbase (a top U.S. exchange) and the global market average. It’s a key gauge for monitoring U.S. capital inflows, institutional investment interest, and shifts in market sentiment. - **Positive Premium**: Coinbase’s price exceeds the global average, often signaling strong U.S. buying pressure, active inflows from institutions or compliant funds, ample USD liquidity, and a moderately optimistic outlook. - **Negative Premium**: Coinbase’s price falls below the global average, typically reflecting heavy U.S. selling pressure, reduced investor risk appetite, increased risk aversion, or capital outflows.

April 21st — At the offline event *Decoding Web 4.0: When AI Agents Take Over On-Chain Authority*, Junliang Shu, CTO of MuleRun (the world’s first self-evolving personal AI project), shared key insights on AI agents: From a product design lens, an AI agent should be viewed as a **personal assistant** — its core goal is to slash user costs and entry barriers via technology. Its capabilities map to a 4-module framework: - *Mouth (Interaction Ability)*: Shifting from traditional web/in-app text chats to multi-channel communication (Telegram, Discord, Lark, DingTalk, WeChat, etc.) for a “UI-less” natural experience. - *Eyes & Ears (Perception Ability)*, *Brain (Reasoning & Decision-Making)*, *Memory & Knowledge (Long-Term Learning)*: Each tied to distinct underlying tech systems. For core on-chain scenarios, MuleRun rolled out an infrastructure solution centered on **Fund Security Permissions** — including sandbox isolation, cloud-based execution, and end-to-end traceability — to

Tuesday, April 21 – South Korea’s KOSPI Index closed up 169.38 points (a 2.72% gain) at 6388.47, hitting a new all-time high. Japan’s Nikkei 225 Index also rose on the day, closing 524.28 points higher (0.89% up) at 59349.17. (Source: FX678)

April 21 Update: Aave Resolves WETH Reserve Unfreeze on Ethereum Core V3 Amid rsETH Exploit Aave has released an official update on the rsETH exploit incident as of April 21: - WETH reserves on the Ethereum Core V3 market have been unfrozen, enabling users to resume supplying WETH to this market. - The loan-to-value (LTV) ratio for WETH remains at 0. - WETH reserves across Ethereum Prime, Arbitrum, Base, Mantle, and Linea remain frozen. - Aave protocol administrators will proceed with next steps and share further updates in a timely manner.

On April 21, the Shanghai Municipal People's Government General Office issued a notice about the *Implementation Plan for the National Digital Economy Innovation and Development Pilot Zone (Shanghai)*. The notice outlines key initiatives: - Exploring cutting-edge technologies - Accelerating pilot applications and commercialization of brain-computer interfaces (BCI), sixth-generation mobile communications (6G), and quantum computing - Building a shared R&D service platform for common technologies - Launching research into the Web 3.0 Innovation Testbed’s operational mechanism - Developing a trusted technology infrastructure based on smart contracts - Conducting systematic technology verification This version uses American English conventions (concise phrasing, bullet points for readability, natural capitalization, and clear term pairing like "launching research" instead of "initiating research" for flow).

On April 21st, Dragonfly General Partner Haseeb Qureshi published an analysis of the Arbitrum Security Council’s freeze of 30,766 ETH belonging to the KelpDAO hacker. Key details from the analysis: - The transaction was an **ArbitrumUnsignedTxType** (EIP-2718 type 0x65/101) — a system-level transaction that regular EOAs cannot sign, and only the Arbitrum Security Council can inject via ArbOS. - This action did **not** involve chain rollbacks or historical state rewrites; it was a *state-level clawback*: the hacker’s private key still works for signing transactions, but the ETH in their address was moved by the chain itself. - The operation showcased the Security Council’s authority in the "catastrophic emergency" scenario outlined in Arbitrum’s progressive decentralization documentation.