# Arbitrum Related Articles

HTX News Center provides the latest articles and in-depth analysis on "Arbitrum", covering market trends, project updates, tech developments, and regulatory policies in the crypto industry.

Arbitrum Pretends to Be the Hacker, 'Steals' Back the Money Lost by KelpDAO

Title: Arbitrum Poses as Hacker to Recover Stolen Funds from KelpDAO Last week, KelpDAO suffered a hack resulting in nearly $300 million in losses, marking the largest DeFi security incident this year. Approximately 30,765 ETH (worth over $70 million) remained on an Arbitrum address controlled by the attacker. In an unprecedented move, Arbitrum’s Security Council utilized its emergency authority to upgrade the Inbox bridge contract, adding a function that allowed them to impersonate the hacker’s address and initiate a transfer without access to its private key. The council’s action, approved by 9 of its 12 members, moved the stolen ETH to a frozen address in a single transaction before reverting the contract to its original state. The operation was coordinated with law enforcement, which attributed the attack to North Korea’s Lazarus Group. Community reactions are divided: some praise the recovery of funds, while others question the centralization of power, as the council can upgrade core contracts without governance votes. However, such emergency mechanisms are common among major L2s. Despite the partial recovery, over $292 million was stolen in total, with more than $100 million in bad debt on Aave and remaining funds scattered across other chains. The incident highlights escalating security challenges in DeFi, with state-sponsored hackers employing advanced tactics and L2s responding with elevated countermeasures.

marsbit04/21 07:59

Arbitrum Pretends to Be the Hacker, 'Steals' Back the Money Lost by KelpDAO

marsbit04/21 07:59

Arbitrum gains 10% as volume spikes – Can ARB break supply zone?

ARB gained 10% in 24 hours, supported by a 40% surge in trading volume exceeding $100 million, indicating strong demand. The token is testing a key supply zone near $0.1031. While the Stochastic RSI suggests potential exhaustion, on-chain data shows whale accumulation reducing supply, and derivatives reflect bullish sentiment with a Long/Short Ratio of 1.6. A break above the resistance could target $1.1, but failure may lead to consolidation. The rally's sustainability depends on continued volume and buying pressure.

ambcrypto04/08 20:21

Arbitrum gains 10% as volume spikes – Can ARB break supply zone?

ambcrypto04/08 20:21

Caldera Launches Metalayer Token Launcher

Caldera has officially launched the Metalayer Token Launcher, the first no-code solution for cross-chain token deployment. This tool enables projects to quickly create and deploy MetaTokens without the need for coding or smart contract development, significantly lowering the technical barriers to launching on-chain economic systems and issuing assets. The platform simplifies the token issuance process: users only need to set the token name, total supply, and a Treasury wallet address to create and deploy a token within minutes. In its initial phase, Metalayer Token Launcher supports both Arbitrum and Ethereum, with near real-time cross-chain bridging between the two. Each token created will have its own dedicated bridge page, making cross-chain transfers more efficient and cost-effective. Metalayer’s core mission is to productize and modularize on-chain economic infrastructure, allowing projects to launch token systems and economic models more quickly and affordably. The platform plans to expand support to more blockchain networks in the future, further enhancing cross-chain asset issuance and circulation. With this launch, Caldera continues to strengthen the Metalayer ecosystem, making token creation, cross-chain movement, and economic system setup simpler and more efficient.

marsbit04/08 14:09

Caldera Launches Metalayer Token Launcher

marsbit04/08 14:09

Caldera Launches Metalayer Token Launcher

Caldera has officially launched the Metalayer Token Launcher, the first no-code solution for cross-chain token deployment. This tool enables projects to quickly create and deploy MetaTokens without the need to write smart contracts or perform complex technical configurations. Users can set the token name, total supply, and Treasury wallet address to complete token creation and deployment within minutes, significantly lowering the technical barriers to launching on-chain economic systems. In its initial phase, the Metalayer Token Launcher will support both Arbitrum and Ethereum, featuring near real-time cross-chain bridging between the two networks. Each token created through Metalayer will have its own dedicated bridge page, simplifying cross-chain asset transfers and reducing operational complexity and cost. The core goal of Metalayer is to productize and modularize on-chain economic infrastructure, allowing projects to launch their token systems and economic models more efficiently and at a lower cost. Future updates will expand support to additional blockchain networks, broadening the scope of cross-chain asset issuance and circulation. Caldera continues to enhance the Metalayer ecosystem, making token creation, cross-chain transfers, and on-chain economy setup simpler and more flexible.

Odaily星球日报04/08 14:00

Caldera Launches Metalayer Token Launcher

Odaily星球日报04/08 14:00

Arbitrum Sepolia stalls for hours as Nitro issue halts block production

Arbitrum's Sepolia testnet experienced a partial outage, halting block production for several hours due to a suspected issue in its core Nitro infrastructure. The team identified a potential block divergence—where nodes disagree on the chain state—and temporarily paused operations to prevent inconsistencies. No new transactions were processed for 3–4 hours, effectively stalling the network. Developers were advised to pause time-sensitive testing and use alternative environments. The team emphasized that no user funds were at risk, as the issue was confined to the testnet. A new Nitro release is expected to resolve the divergence and restore normal operations.

ambcrypto03/23 22:04

Arbitrum Sepolia stalls for hours as Nitro issue halts block production

ambcrypto03/23 22:04

Deep Reflections Behind the OP Plunge

In a significant move, Coinbase's Base announced its departure from the Optimism OP Stack to develop its own proprietary unified architecture, causing a sharp 20% drop in $OP’s price. This event highlights the ongoing debate between two competing economic models for blockchain infrastructure: Optimism’s fully open-source, MIT-licensed approach versus Arbitrum’s “community source” model, which mandates a 10% protocol income contribution from chains built on its Orbit stack that settle outside the Arbitrum ecosystem. Optimism’s strategy emphasizes openness and network effects, attracting major projects like Base, Worldcoin, and Uniswap with its modular, permission-free stack. However, this model risks ecosystem fragmentation, as high-value chains may eventually choose independence. In contrast, Arbitrum enforces economic alignment through its revenue-sharing requirement, aiming for long-term sustainability, though it may slow initial adoption. This tension mirrors historical open-source dilemmas, such as those seen with Linux, MySQL, and WordPress, where balancing free access with sustainable funding remains challenging. In crypto, the presence of native tokens amplifies these dynamics, making economic alignment and infrastructure financing even more critical. Neither model is perfect—each involves trade-offs between growth and sustainability. The key takeaway is the need for a broader ecosystem discussion on how to fund and maintain essential public infrastructure without relying on free-riders. Base’s exit should serve as a catalyst for this conversation.

marsbit02/22 09:27

Deep Reflections Behind the OP Plunge

marsbit02/22 09:27

$56.9M exits Arbitrum in 24 hours – Is ARB’s rebound at risk?

Despite a significant increase in network activity, with daily active users reaching 4.3 million and transactions per user averaging 26, Arbitrum (ARB) experienced a sharp 10% price decline. This downturn was primarily driven by substantial on-chain capital outflows, with $56.9 million exiting the network. The majority of this capital rotated into Ethereum and Hyperliquid. Concurrently, bearish sentiment intensified, as evidenced by a drop in bullish conviction from 83% to 48% and a negative funding rate in derivatives markets. Fresh liquidity entering derivatives largely reinforced short positions, creating strong downward pressure. Both spot and derivatives activity indicate elevated bearish momentum, increasing the risk of further declines.

ambcrypto02/20 18:01

$56.9M exits Arbitrum in 24 hours – Is ARB’s rebound at risk?

ambcrypto02/20 18:01

Robinhood Chain Testnet Hits 4M Transactions in Week One

Robinhood Chain, the company's Ethereum Layer 2 testnet built on Arbitrum, processed 4 million transactions in its first week, indicating strong developer interest. Launched on February 10 after six months of private testing, the permissionless blockchain is designed for high-throughput financial applications, including tokenized equities and ETFs. CEO Vlad Tenev emphasized the platform's role in the future of on-chain finance. Despite a 38% year-over-year drop in Q4 2025 crypto revenue, Robinhood plans to expand its tokenized stock offerings with 24/7 trading and self-custody. The mainnet is expected to launch later this year.

TheNewsCrypto02/19 10:51

Robinhood Chain Testnet Hits 4M Transactions in Week One

TheNewsCrypto02/19 10:51

On-Chain Stock Trading, Yet Retaining Reset Rights: Robinhood's Experiment in Progress and Retreat

Robinhood has launched the public testnet of Robinhood Chain, an Ethereum Layer 2 built on Arbitrum Orbit, aiming to tokenize real-world assets (RWA) like stocks, ETFs, and private equities. This move follows the company’s earlier experiments in Europe, where it offered tokenized stock derivatives—not actual equity ownership—with features like 24/7 trading, instant settlement, and dividend pass-through. The chain leverages Arbitrum for EVM compatibility and Ethereum for security, while allowing Robinhood to enforce compliance controls. Despite its vision for global accessibility and DeFi composability, challenges remain: the assets are legally structured as derivatives, Robinhood Europe acts as the sole counterparty, and the platform retains centralized control, including the ability to reset or restrict wallet access. The initiative represents Robinhood’s broader push to bridge traditional finance and crypto, though its success depends on navigating regulatory and operational hurdles.

比推02/12 12:24

On-Chain Stock Trading, Yet Retaining Reset Rights: Robinhood's Experiment in Progress and Retreat

比推02/12 12:24

Robinhood Ventures into L2, Focusing on RWA Tokenization

In late January 2026, Robinhood CEO Vlad Tenev highlighted that the GameStop short squeeze incident five years earlier could have been avoided with blockchain’s real-time settlement capabilities. Shortly after, Robinhood launched the testnet of Robinhood Chain, an Arbitrum-based Layer 2 network focused on tokenizing real-world assets (RWA), including stocks, ETFs, and private assets. Built on Arbitrum Orbit, Robinhood Chain leverages Ethereum for data availability and uses ETH as its native gas token. The platform combines Ethereum’s security with custom compliance features, allowing Robinhood to enforce regulatory rules while maintaining interoperability with existing DeFi infrastructure. Prior to the testnet, Robinhood had already been testing tokenized stocks in Europe for eight months. These assets are structured as derivative contracts pegged to the price of underlying equities—not as direct ownership claims. The system supports features like dividend pass-through and on-chain minting/burning tied to user positions. Robinhood acquired necessary regulatory licenses, including MiCA and MiFID approvals, partly through its acquisition of Bitstamp. The platform aims to enable 24/7 trading, instant settlement, and global accessibility with low fees. However, challenges remain, including legal ambiguity around asset representation, centralization risks (with Robinhood Europe as the sole counterparty), and potential pushback from traditional institutions. Robinhood Chain represents a significant step in blurring the lines between traditional finance and crypto, though its balance between compliance and decentralization remains a key point of observation.

marsbit02/12 08:34

Robinhood Ventures into L2, Focusing on RWA Tokenization

marsbit02/12 08:34

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