Bitcoin ETFs Continue to Attract Capital, Arbitrum Freezes Over 30,000 ETH from KelpDAO Attacker

BroadChain learned that at 19:16 on April 21, Bitcoin spot ETFs recorded net inflows for the fifth consecutive day, with a total of $238 million yesterday. Meanwhile, institutions continued to increase their holdings. Strategy invested $2.54 billion last week to acquire an additional 34,164 BTC, bringing its total holdings to over 815,000 BTC. During the same period, Bitmine also increased its holdings by 101,627 ETH, bringing its total holdings close to 5 million ETH. In terms of security incidents, the Arbitrum Security Council has taken emergency action, freezing approximately 30,766 ETH related to the KelpDAO attack. Aave updated the progress of the rsETH incident, stating that the WETH reserves in its Ethereum Core V3 market have been unfrozen, but the loan-to-value ratio remains zero. Lido disclosed that its EarnETH treasury holds approximately $21.6 million in rsETH exposure and has prepared a $3 million first-loss protection mechanism. The incident report released by Aave indicated that the Kelp DAO cross-chain bridge vulnerability could potentially lead to bad debt risks of up to $230 million. Additionally, the Shanghai Municipal People's Government Office issued a plan proposing the construction of public data development and utilization infrastructure based on technologies such as blockchain, and strengthening blockchain network capabilities. Ripple announced the anti-quantum roadmap for the XRP Ledger, aiming for completion by 2028. Pharos unveiled the economic model for its token PROS, with a total supply of 1 billion tokens, of which 6% will be allocated for airdrops. JPYC announced an additional financing round of 2.8 billion yen, bringing the total expected amount of its Series B financing to 4.6 billion yen.