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Project Overview
Arbitrum, created by the Offchain Labs team, is an Ethereum Layer2 scaling solution based on Optimistic Rollup technology. It leverages the ability to communicate between L1 and L2, allowing any form of Ethereum asset to be transferred between Layer 1 and Layer 2 without the need for trust. Even though Arbitrum transactions are still settled on Ethereum, only raw transaction data is submitted to Ethereum, with execution and contract storage occurring off-chain. This makes the gas fee required on Arbitrum much smaller than on the mainnet, and contracts are fully compatible with no gas limit.
Blockworks completes Series A extension funding at $192 million valuation, betting on the integration of crypto data and information infrastructure
Blockworks has announced the completion of a Series A extension funding round, achieving a post-money valuation of $192 million. The round was co-led by ParaFi Capital and Reciprocal Ventures, with support from Coinbase Ventures, MoonPay Ventures, and several other institutions and industry participants. The funding also attracted investments from over 20 founders and operators of ecosystem projects including Solana, LayerZero, Arbitrum, and Kraken, though the specific amount raised has not been disclosed.The company stated that while the crypto market has grown to a trillion-dollar scale lacking traditional capital market infrastructure, it still faces issues such as fragmented data, inconsistent disclosure standards, and a lack of investor communication mechanisms. Blockworks aims to fill this gap through a "data + disclosure + investor relations" tripartite architecture. (CNBC)
Nava Secures $8.3M Seed Round Led by Polychain and Archetype
According to Fortune, blockchain startup Nava has announced the completion of an $8.3 million seed funding round, co-led by Polychain and Archetype, aiming to prevent anomalous operations by AI financial agents through a custody and verification framework. Nava’s solution locks funds via custodial services; once an AI agent proposes a transaction, an on-chain verification mechanism assesses whether the transaction aligns with the user’s intent—only compliant transactions are executed, while non-compliant ones leave funds in custody. All verification decisions are publicly recorded on the blockchain for reference by other AIs. Nava currently operates as a Layer 3 blockchain on Arbitrum and plans to deploy a parallel chain on Tempo; it will also issue a native stablecoin in the future to support protocol operations. Nava’s infrastructure serves both individual users and institutions, enhancing asset security and transaction transparency.
Kelp Releases Community Update: Advancing Resolution for the rsETH Security Incident to Achieve Win-Win Outcomes for All Parties
Kelp DAO released a community update on X, noting that the recent rsETH security incident has remained tense over the past several days. However, with support from partners and the broader community, discussions are progressing in a positive direction, and efforts to identify an appropriate resolution are being accelerated. The guiding principles have already been reflected in initial actions, and subsequent updates will continue along this path, aiming for a win-win outcome for all stakeholders. Over the past four days, the Kelp team has engaged in in-depth communication with partners and other relevant parties. Specific progress includes: the Arbitrum Security Council has taken measures to freeze the stolen funds, and the SEAL 911 emergency response team has swiftly stepped in to conduct preliminary investigations, providing a clear and objective analytical perspective on the incident. While some developments have not yet been fully disclosed, related work continues to advance steadily. Kelp DAO stated that its current priority is safeguarding user assets and strengthening the protocol itself. This incident is also viewed as a critical test—not only for the project but for the broader DeFi ecosystem—and key follow-up developments will continue to be shared via official channels.
Hyperbridge: Losses from the vulnerability increased to approximately $2.5 million; some funds have been traced to Binance.
According to an official disclosure by Hyperbridge, the losses from the Token Gateway vulnerability incident on April 13 have been revised upward from an initial estimate of $237,000 to approximately $2.5 million. The increase stems primarily from losses incurred in incentive pools on Ethereum, Base, BNB Chain, and Arbitrum. The attacker extracted roughly 245 ETH from related contracts, then bypassed the MMR proof verification mechanism by forging cross-chain messages, minting 1 billion bridged DOT tokens and dumping them onto illiquid markets. Currently, some of the stolen funds have been traced on-chain to Binance. Hyperbridge is collaborating with Binance’s compliance team and law enforcement agencies to investigate the incident. Polkadot-native DOT and products such as Intent Gateway remain unaffected. The Token Gateway and bridged DOT contracts on the four affected EVM chains remain suspended. An external audit of the patched MMR verification logic is underway, and bridging functionality will be restored upon completion of the audit.
Nava Secures $8.3M Seed Round Led by Polychain and Archetype
According to Fortune, blockchain startup Nava has announced the completion of an $8.3 million seed funding round, co-led by Polychain and Archetype, aiming to prevent anomalous operations by AI financial agents through a custody and verification framework. Nava’s solution locks funds via custodial services; once an AI agent proposes a transaction, an on-chain verification mechanism assesses whether the transaction aligns with the user’s intent—only compliant transactions are executed, while non-compliant ones leave funds in custody. All verification decisions are publicly recorded on the blockchain for reference by other AIs. Nava currently operates as a Layer 3 blockchain on Arbitrum and plans to deploy a parallel chain on Tempo; it will also issue a native stablecoin in the future to support protocol operations. Nava’s infrastructure serves both individual users and institutions, enhancing asset security and transaction transparency.
rsETH Hack Causes 68,900 ETH Shortfall; DeFi United Raises 13,500 ETH for Industry自救
According to on-chain analyst Ember (@EmberCN), the rsETH incident on April 18 resulted in a funding shortfall of approximately 68,900 ETH (around $160 million): the hacker collateralized rsETH to borrow 99,600 ETH; after Arbitrum recovered 30,700 ETH, the remaining funds were fully converted by the hacker into BTC. The incident has now entered the remediation phase. Aave is coordinating the establishment of a “DeFi United” relief fund, which has so far received cumulative donations totaling 13,500 ETH (approximately $31.45 million). Donors include Lido Finance (2,500 stETH), ether.fi Foundation (5,000 ETH), Aave founder Stani Kulechov (5,000 ETH), Golem Foundation (1,000 ETH), as well as LayerZero and Ink Foundation (amounts undisclosed).
The KelpDAO attacker bridged funds to Arbitrum and then transferred them to TRON.
According to on-chain analyst PeckShield (@PeckShieldAlert), the KelpDAO attacker has transferred ETH from Ethereum to Arbitrum via the Across Protocol, swapped it for USDT, and then routed the funds to TRON DAO via LayerZero.
KelpDAO’s stolen funds have entered the laundering phase: part of the funds has been bridged across chains to the Bitcoin network via THORChain, and over 400 addresses have already been utilized.
According to on-chain analyst Specter (@SpecterAnalyst), the North Korean hacking group TraderTraitor began laundering stolen funds from KelpDAO at approximately 3 a.m. Beijing time today—just three hours after the Arbitrum Council froze 30.7 ETH (approximately $71 million). The attackers split the remaining funds across three wallets, holding roughly 25,000 ETH (~$57.6 million), 25,700 ETH (~$59.2 million), and 25,000 ETH (~$57.9 million), respectively. The third wallet immediately initiated laundering operations and now holds only about 3,800 ETH (~$8 million). The majority of the funds were bridged to the Bitcoin network via THORChain, with approximately 99% flowing through this protocol. As a result, THORChain’s daily trading volume surged to $211 million—more than ten times its 30-day average—and generated roughly $189,000 in fees. During this laundering process, the illicit proceeds were also commingled with funds stolen in the BTC Turk (2025) and Bybit (2025) hacks. To date, approximately 442 BTC (~$33 million) linked to these incidents have been traced on the Bitcoin network, and over 400 addresses have been utilized throughout the entire laundering operation.
KelpDAO hacker still holds 75,700 ETH on the Ethereum chain, worth $175 million
Odaily News According to on-chain analyst Yu Jin's monitoring, the Arbitrum chain project team has frozen the 30,766 ETH ($70.97 million) that the KelpDAO hacker had placed on the Arbitrum chain. Through technical means, they transferred these 30,766 ETH from the hacker's wallet to the address 0x0000000000000000000000000000000000000da0, which is controlled by the Arbitrum chain. After the recovery of these 30,766 ETH, the hacker still holds 75,700 ETH ($175 million) on the Ethereum chain.
Hyperbridge: Losses from the vulnerability increased to approximately $2.5 million; some funds have been traced to Binance.
According to an official disclosure by Hyperbridge, the losses from the Token Gateway vulnerability incident on April 13 have been revised upward from an initial estimate of $237,000 to approximately $2.5 million. The increase stems primarily from losses incurred in incentive pools on Ethereum, Base, BNB Chain, and Arbitrum. The attacker extracted roughly 245 ETH from related contracts, then bypassed the MMR proof verification mechanism by forging cross-chain messages, minting 1 billion bridged DOT tokens and dumping them onto illiquid markets. Currently, some of the stolen funds have been traced on-chain to Binance. Hyperbridge is collaborating with Binance’s compliance team and law enforcement agencies to investigate the incident. Polkadot-native DOT and products such as Intent Gateway remain unaffected. The Token Gateway and bridged DOT contracts on the four affected EVM chains remain suspended. An external audit of the patched MMR verification logic is underway, and bridging functionality will be restored upon completion of the audit.
Kelp Releases Community Update: Advancing Resolution for the rsETH Security Incident to Achieve Win-Win Outcomes for All Parties
Kelp DAO released a community update on X, noting that the recent rsETH security incident has remained tense over the past several days. However, with support from partners and the broader community, discussions are progressing in a positive direction, and efforts to identify an appropriate resolution are being accelerated. The guiding principles have already been reflected in initial actions, and subsequent updates will continue along this path, aiming for a win-win outcome for all stakeholders. Over the past four days, the Kelp team has engaged in in-depth communication with partners and other relevant parties. Specific progress includes: the Arbitrum Security Council has taken measures to freeze the stolen funds, and the SEAL 911 emergency response team has swiftly stepped in to conduct preliminary investigations, providing a clear and objective analytical perspective on the incident. While some developments have not yet been fully disclosed, related work continues to advance steadily. Kelp DAO stated that its current priority is safeguarding user assets and strengthening the protocol itself. This incident is also viewed as a critical test—not only for the project but for the broader DeFi ecosystem—and key follow-up developments will continue to be shared via official channels.
rsETH Hack Causes 68,900 ETH Shortfall; DeFi United Raises 13,500 ETH for Industry自救
According to on-chain analyst Ember (@EmberCN), the rsETH incident on April 18 resulted in a funding shortfall of approximately 68,900 ETH (around $160 million): the hacker collateralized rsETH to borrow 99,600 ETH; after Arbitrum recovered 30,700 ETH, the remaining funds were fully converted by the hacker into BTC. The incident has now entered the remediation phase. Aave is coordinating the establishment of a “DeFi United” relief fund, which has so far received cumulative donations totaling 13,500 ETH (approximately $31.45 million). Donors include Lido Finance (2,500 stETH), ether.fi Foundation (5,000 ETH), Aave founder Stani Kulechov (5,000 ETH), Golem Foundation (1,000 ETH), as well as LayerZero and Ink Foundation (amounts undisclosed).
Aave Pauses rsETH Reserve Operations on Ethereum, Arbitrum, and Other Networks to Prevent Liquidation Risk from Spreading
Aave released the latest update on the rsETH security incident on the X platform, announcing that it has paused rsETH reserve-related operations on the Ethereum mainnet as well as networks including Arbitrum, Base, Mantle, and Linea. This measure is intended to prevent excess aETHrsETH from being withdrawn, thereby pushing positions close to the 95% liquidation threshold. This action aims to preserve as much capital as possible and reduce systemic risk while the asset recovery plan is underway. Aave stated that further progress and resolution plans will be continuously disclosed to the community.
Aave Suspends rsETH Reserve Operations on Ethereum, Arbitrum, and Other Networks
Aave announced the latest developments regarding the rsETH security incident on X, stating that rsETH-related reserve operations have been suspended on Ethereum Mainnet and on networks including Arbitrum, Base, Mantle, and Linea. This measure aims to preserve as much capital as possible and mitigate systemic risk while the asset recovery plan is underway. Aave stated that it will continue to disclose subsequent updates and resolution plans to the community.
The KelpDAO attacker bridged funds to Arbitrum and then transferred them to TRON.
According to on-chain analyst PeckShield (@PeckShieldAlert), the KelpDAO attacker has transferred ETH from Ethereum to Arbitrum via the Across Protocol, swapped it for USDT, and then routed the funds to TRON DAO via LayerZero.
KelpDAO’s stolen funds have entered the laundering phase: part of the funds has been bridged across chains to the Bitcoin network via THORChain, and over 400 addresses have already been utilized.
According to on-chain analyst Specter (@SpecterAnalyst), the North Korean hacking group TraderTraitor began laundering stolen funds from KelpDAO at approximately 3 a.m. Beijing time today—just three hours after the Arbitrum Council froze 30.7 ETH (approximately $71 million). The attackers split the remaining funds across three wallets, holding roughly 25,000 ETH (~$57.6 million), 25,700 ETH (~$59.2 million), and 25,000 ETH (~$57.9 million), respectively. The third wallet immediately initiated laundering operations and now holds only about 3,800 ETH (~$8 million). The majority of the funds were bridged to the Bitcoin network via THORChain, with approximately 99% flowing through this protocol. As a result, THORChain’s daily trading volume surged to $211 million—more than ten times its 30-day average—and generated roughly $189,000 in fees. During this laundering process, the illicit proceeds were also commingled with funds stolen in the BTC Turk (2025) and Bybit (2025) hacks. To date, approximately 442 BTC (~$33 million) linked to these incidents have been traced on the Bitcoin network, and over 400 addresses have been utilized throughout the entire laundering operation.
Blockworks completes Series A extension funding at $192 million valuation, betting on the integration of crypto data and information infrastructure
Blockworks has announced the completion of a Series A extension funding round, achieving a post-money valuation of $192 million. The round was co-led by ParaFi Capital and Reciprocal Ventures, with support from Coinbase Ventures, MoonPay Ventures, and several other institutions and industry participants. The funding also attracted investments from over 20 founders and operators of ecosystem projects including Solana, LayerZero, Arbitrum, and Kraken, though the specific amount raised has not been disclosed.The company stated that while the crypto market has grown to a trillion-dollar scale lacking traditional capital market infrastructure, it still faces issues such as fragmented data, inconsistent disclosure standards, and a lack of investor communication mechanisms. Blockworks aims to fill this gap through a "data + disclosure + investor relations" tripartite architecture. (CNBC)
HTX will list RAIN at 8:00 PM today and simultaneously launch isolated margin leveraged trading for the RAIN/USDT (10x) pair.
The cryptocurrency margin trading service will introduce RAIN/USDT (10x) isolated margin trading on April 29 at 20:00 (GMT+8). Rain is a fully decentralized prediction market protocol built on Arbitrum, offering cross-chain support. Positioned as the “Uniswap of prediction markets,” it provides a permissionless framework enabling anyone to create and trade custom markets without restrictions.
Aave Establishes Recovery Fund to Promote Full Redemption of rsETH, Collaborates with KelpDAO and LayerZero to Launch Execution Plan
Aave announced that its ecosystem partners and service providers will establish a recovery fund to promote the full asset backing of rsETH. This plan has comprehensively considered the pending Aave DAO governance votes (including the Arbitrum governance vote), indicative protocols, and subsequent successful execution. Aave stated that it has reached an agreement with KelpDAO and LayerZero on the technical steps required to execute the recovery plan, and related work is progressing. Addressing the issues of affected users and maintaining the stability of the broader DeFi ecosystem are the current top priorities. The final recovery plan, user action steps, and further updates will be announced in the near future.
Kelp: Progress made on rsETH recovery; remaining shortfall is approximately 89,500 ETH.
KelpDAO announced that, since April 18, it has been coordinating with Aave and ecosystem partners to restore rsETH holdings for rsETH holders. The initial shortfall from this incident was 163,200 ETH. To date, Kelp has recovered 40,300 rsETH—approximately 43,000 ETH—and the Arbitrum Security Council has separately secured 30,700 ETH. The remaining shortfall stands at approximately 89,500 ETH. Kelp stated that, of this remaining shortfall, Mantle, Stani Kulechov, EtherFi, Lido, and Golem have publicly committed to contributing a total of 43,500 ETH, and Kelp is working with these partners to formalize those contributions. Kelp emphasized that rsETH holders are the top priority.
Kelp Releases Community Update: Advancing Resolution for the rsETH Security Incident to Achieve Win-Win Outcomes for All Parties
Kelp DAO released a community update on X, noting that the recent rsETH security incident has remained tense over the past several days. However, with support from partners and the broader community, discussions are progressing in a positive direction, and efforts to identify an appropriate resolution are being accelerated. The guiding principles have already been reflected in initial actions, and subsequent updates will continue along this path, aiming for a win-win outcome for all stakeholders. Over the past four days, the Kelp team has engaged in in-depth communication with partners and other relevant parties. Specific progress includes: the Arbitrum Security Council has taken measures to freeze the stolen funds, and the SEAL 911 emergency response team has swiftly stepped in to conduct preliminary investigations, providing a clear and objective analytical perspective on the incident. While some developments have not yet been fully disclosed, related work continues to advance steadily. Kelp DAO stated that its current priority is safeguarding user assets and strengthening the protocol itself. This incident is also viewed as a critical test—not only for the project but for the broader DeFi ecosystem—and key follow-up developments will continue to be shared via official channels.
Aave Pauses rsETH Reserve Operations on Ethereum, Arbitrum, and Other Networks to Prevent Liquidation Risk from Spreading
Aave released the latest update on the rsETH security incident on the X platform, announcing that it has paused rsETH reserve-related operations on the Ethereum mainnet as well as networks including Arbitrum, Base, Mantle, and Linea. This measure is intended to prevent excess aETHrsETH from being withdrawn, thereby pushing positions close to the 95% liquidation threshold. This action aims to preserve as much capital as possible and reduce systemic risk while the asset recovery plan is underway. Aave stated that further progress and resolution plans will be continuously disclosed to the community.
Related news
Blockworks completes Series A extension funding at $192 million valuation, betting on the integration of crypto data and information infrastructure
Blockworks has announced the completion of a Series A extension funding round, achieving a post-money valuation of $192 million. The round was co-led by ParaFi Capital and Reciprocal Ventures, with support from Coinbase Ventures, MoonPay Ventures, and several other institutions and industry participants. The funding also attracted investments from over 20 founders and operators of ecosystem projects including Solana, LayerZero, Arbitrum, and Kraken, though the specific amount raised has not been disclosed.The company stated that while the crypto market has grown to a trillion-dollar scale lacking traditional capital market infrastructure, it still faces issues such as fragmented data, inconsistent disclosure standards, and a lack of investor communication mechanisms. Blockworks aims to fill this gap through a "data + disclosure + investor relations" tripartite architecture. (CNBC)
HTX will list RAIN at 8:00 PM today and simultaneously launch isolated margin leveraged trading for the RAIN/USDT (10x) pair.
The cryptocurrency margin trading service will introduce RAIN/USDT (10x) isolated margin trading on April 29 at 20:00 (GMT+8). Rain is a fully decentralized prediction market protocol built on Arbitrum, offering cross-chain support. Positioned as the “Uniswap of prediction markets,” it provides a permissionless framework enabling anyone to create and trade custom markets without restrictions.
Aave Establishes Recovery Fund to Promote Full Redemption of rsETH, Collaborates with KelpDAO and LayerZero to Launch Execution Plan
Aave announced that its ecosystem partners and service providers will establish a recovery fund to promote the full asset backing of rsETH. This plan has comprehensively considered the pending Aave DAO governance votes (including the Arbitrum governance vote), indicative protocols, and subsequent successful execution. Aave stated that it has reached an agreement with KelpDAO and LayerZero on the technical steps required to execute the recovery plan, and related work is progressing. Addressing the issues of affected users and maintaining the stability of the broader DeFi ecosystem are the current top priorities. The final recovery plan, user action steps, and further updates will be announced in the near future.
Aave submits a governance proposal to Arbitrum DAO, requesting the release of frozen ETH to be injected into DeFi United
Aave posted on X, stating that the Aave service provider, together with stakeholders such as Ether_fi, KelpDAO, LayerZero_Core, and compound_xyz, has submitted a governance proposal to the Arbitrum DAO. The proposal requests the release of the ETH previously frozen by the Arbitrum Security Council following the rsETH incident on April 18. If the proposal passes, the funds will be injected into DeFi United to restore the rsETH collateral assets and compensate for user losses. The proposal is now open for review and is seeking feedback from the Arbitrum community.
Kelp: Progress made on rsETH recovery; remaining shortfall is approximately 89,500 ETH.
KelpDAO announced that, since April 18, it has been coordinating with Aave and ecosystem partners to restore rsETH holdings for rsETH holders. The initial shortfall from this incident was 163,200 ETH. To date, Kelp has recovered 40,300 rsETH—approximately 43,000 ETH—and the Arbitrum Security Council has separately secured 30,700 ETH. The remaining shortfall stands at approximately 89,500 ETH. Kelp stated that, of this remaining shortfall, Mantle, Stani Kulechov, EtherFi, Lido, and Golem have publicly committed to contributing a total of 43,500 ETH, and Kelp is working with these partners to formalize those contributions. Kelp emphasized that rsETH holders are the top priority.
Kelp Releases Community Update: Advancing Resolution for the rsETH Security Incident to Achieve Win-Win Outcomes for All Parties
Kelp DAO released a community update on X, noting that the recent rsETH security incident has remained tense over the past several days. However, with support from partners and the broader community, discussions are progressing in a positive direction, and efforts to identify an appropriate resolution are being accelerated. The guiding principles have already been reflected in initial actions, and subsequent updates will continue along this path, aiming for a win-win outcome for all stakeholders. Over the past four days, the Kelp team has engaged in in-depth communication with partners and other relevant parties. Specific progress includes: the Arbitrum Security Council has taken measures to freeze the stolen funds, and the SEAL 911 emergency response team has swiftly stepped in to conduct preliminary investigations, providing a clear and objective analytical perspective on the incident. While some developments have not yet been fully disclosed, related work continues to advance steadily. Kelp DAO stated that its current priority is safeguarding user assets and strengthening the protocol itself. This incident is also viewed as a critical test—not only for the project but for the broader DeFi ecosystem—and key follow-up developments will continue to be shared via official channels.