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On October 2, at 11:30 AM Eastern Time, the Arbitrum Security Committee executed an emergency upgrade on Arbitrum One and Nova, suspending the activation of all new Stylus contracts on both chains, while adding a protective mechanism against BoLD single-step proofs in the dispute system of Arbitrum One. The Arbitrum Foundation stated that this action is part of ongoing proactive security measures aimed at protecting the security and integrity of the network.Stylus allows developers to write smart contracts using languages such as Rust and C++, while maintaining compatibility with the Ethereum Virtual Machine, with its programs compiled into WebAssembly format. This suspension primarily targets manually written WASM programs that do not use the standard Stylus compiler toolchain and have not yet been patched by the current version of ArbOS. The Security Committee increased the gas required for activation to the theoretical maximum by calling ArbOwner.setWasmActivationGas(2^64 - 1), making new activations economically unfeasible. Activated Stylus contracts are unaffected and can continue to execute and renew, and the deployment and execution of Solidity contracts are also unrestricted.The newly added BoLD protection allows anyone to pause the settlement from Arbitrum One to Ethereum when two conflicting and accepted answers appear in the same dispute step, which may delay unconfirmed withdrawals to allow the Security Committee to deploy fixes. Officials pointed out that the currently discovered Stylus-related vulnerabilities mainly affect the activity of the chain, such as denial-of-service attacks, and do not jeopardize user funds.

The U.S. Commodity Futures Trading Commission (CFTC) reported that for the week ending September 29, stock fund speculators increased their net short positions in the S&P 500 CME by 575 contracts, bringing the total to 355,697 contracts; stock fund managers reduced their net long positions in the S&P 500 CME by 33,658 contracts, bringing the total to 901,255 contracts.

The cryptocurrency trading platform OKX announced the launch of the QUANTUSDT global perpetual contract, and related trading is now open.OKX introduced that Quant Network builds a programmable currency infrastructure through Overledger and QuantNet to connect banks, blockchains, tokenized deposits, and traditional payment rails.

According to Coinglass data, the total contract open interest for ETH has increased by 5.18% in the past 24 hours, with the current total open interest at 35.304 billion USD. Among them, Binance's open interest is 10.208 billion USD, OKX's open interest is 1.973 billion USD, Bybit's open interest is 2.71 billion USD, and Gate's open interest is 2.326 billion USD.

TRON DeFi Summer announces the latest arrangements for S3: the event will officially launch on October 4 at 08:00 (SGT) and will last for 60 days, with a total prize pool of 2 million USD, including a TRX pool of 1 million USD, a USDD pool of 600,000 USD, a JST pool of 300,000 USD, and a SUN pool of 100,000 USD.Users can enter JustLend DAO through Binance Wallet DeFi to participate in the Boosted APR incentives. Users who participated in S2 do not need to reapply; simply maintaining their holdings will automatically extend their eligibility for S3 rewards. New users can prepare their assets in advance to join as soon as it opens. More S3 gameplay will be announced soon.

According to the official announcement, Gate has launched the POD perpetual contract (settled in USDT), supporting 1-10 times leverage, and has simultaneously launched the POD trading bot and Order Tracking feature.POD (Dolphin) is a decentralized AI Inference / DePIN network, where users can utilize idle GPUs to provide inference computing power for Dolphin and other Open-weight AI Models.

Linea's official statement indicates that some validators supporting the Yield Boost treasury are withdrawing as a precaution due to the MetaMask staking incident. Linea emphasizes that the funds and control of the staking treasury itself have not been affected.The impact of this incident is that during the period when relevant validators withdraw and are replaced by new validators, the net staking rewards that provide funding sources for ecosystem incentives will temporarily decrease. Linea stated that it is closely monitoring the situation's progress.

The Bank of Montreal has lowered the target price for SpaceX (SPCX.O) from $280 to $250.

According to GMGN data, the privacy narrative token MASK on the Solana chain has a market capitalization exceeding 35 million USD, setting a historical high, with a 24-hour increase of over 70%. The current market capitalization is 34.91 million USD, with a trading volume of 2.7 million USD during the same period.MASK uses ZEC as the base pair and provides liquidity through the ZEC/MASK trading pair, aiming to offer ZK privacy services for any cryptocurrency activities. The prices of related tokens are highly volatile, and investment should be approached with caution.

According to CoinDesk, Tether's USDT will return to the Bitcoin network this month, issued through the Tether-supported infrastructure project Utexo.With a market capitalization of nearly $190 billion, USDT is the largest stablecoin in the world, originally launched on the Bitcoin Omni protocol in 2014, and later Ethereum and Tron became its main issuance networks. Tether CEO Paolo Ardoino stated on X last week, "It's home."Utexo was established in 2025 and completed a $7.5 million financing round earlier this year, led by Tether, and has obtained a commercial license to issue USDT on Bitcoin.Utexo uses the RGB protocol with client-side validation, keeping most transaction data off the Bitcoin public ledger, with ownership anchored on UTXO. Unlike the account models of Ethereum and Tron, transaction details are fully preserved off-chain between the two parties, with the Bitcoin ledger used solely for cryptographic proof of ownership.Utexo offers three main use cases: private USDT transfers, direct exchanges between native BTC and USDT, and lending with native Bitcoin as collateral, without the need for cross-chain wrapping like WBTC.Since RGB assets are ultimately anchored to Bitcoin UTXO, Utexo cannot freeze assets like Tether can freeze Ethereum addresses, but instead maintains a blacklist of UTXO related to sanctioned or illegal activities and distributes it to exchanges and other institutions, making these UTXO non-redeemable.

According to official news, TRON has officially released the GreatVoyage-v4.8.2.3 (Anaxagoras) version.The new version focuses on improving the smart contract storage access mechanism, enhancing the performance of BN128 pairing operations, and optimizing the parsing process of JSON data generated by nodes, further enhancing node operational efficiency and stability.This version is a mandatory upgrade, and TRON reminds node operators to complete the update as soon as possible to avoid affecting block synchronization. After the upgrade is completed, relevant nodes can promptly report their deployment status so that the community can continuously track the overall network upgrade progress.For specific version changes, GPG signature verification, and deployment methods, please refer to the official version release notes and upgrade deployment documentation.

On-chain analyst Darkfost posted on X that the inflow of whale funds transferring over 1 million dollars in stablecoins to Binance has significantly increased recently.According to the 30-day cumulative calculation, the amount of stablecoins this group has transferred to Binance has risen from 21.7 billion dollars to 30.5 billion dollars over the past month, an increase of over 40%.Darkfost stated that the inflow of stablecoins to exchanges usually indicates that funds are preparing to enter the market, so this change may correspond to potential buying pressure. However, compared to last October when inflows once exceeded 61 billion dollars, the current deployment of whale funds remains relatively cautious.

According to Coinglass data, the total contract open interest for BTC has increased by 5.9% in the past 24 hours, with the current total open interest at 56.226 billion USD. Among them, the open interest for Binance is 11.788 billion USD, OKX is 3.189 billion USD, Bybit is 5.833 billion USD, and Gate is 4.713 billion USD.

According to SoSoValue data, the total net outflow of Ethereum spot ETFs yesterday was $55.3727 million.The Ethereum spot ETF with the highest single-day net inflow was Grayscale Ethereum Trust ETF ETH, with a single-day net inflow of $1.5463 million, and the total historical net inflow for ETH has reached $2.022 billion.The Ethereum spot ETF with the highest single-day net outflow was Fidelity ETF FETH, with a single-day net outflow of $23.5039 million, and the total historical net inflow for FETH has reached $2.364 billion.As of the time of publication, the total net asset value of Ethereum spot ETFs was $17.714 billion, with an ETF net asset ratio (market cap as a percentage of total Ethereum market cap) of 5.38%, and the historical cumulative net inflow has reached $13.839 billion.

According to Lookonchain monitoring, a whale starting with 0xf7AD has purchased 654,288 UNI through Flowdesk at an average price of $7.17 over the past month, worth approximately $4.69 million, with an unrealized profit of about $1.15 million currently.

Volmex has launched the Bitcoin Implied Volatility Index (BVIV) perpetual contract on Hyperliquid. This contract is based on options data from Deribit and OKX, reflecting traders' expectations of Bitcoin's volatility over the next 30 days, without reflecting the direction of the spot price.Recently, the BVIV readings have been in the mid-high range of over 30 points. Each index point of the contract corresponds to a settlement of 1 USDC, using a per-position margin model, supporting a maximum leverage of 5 times, and has an hourly funding rate and a cap on the number of open contracts during the initial launch phase.

HIVE Digital Technologies Executive Chairman Frank Holmes stated in an interview with Bitcoin Magazine that governments around the world will continue to print money, potentially reaching 100 trillion dollars, which makes him optimistic about Bitcoin and gold. He pointed out that Bitcoin miners already possess the electricity, land, and substations required for AI, and referred to Bitcoin mining as a "tier one data center."Holmes introduced that HIVE had previously used GPUs for mining Ethereum to enter the AI field, and he believes the next wave of AI factories will be built on mining infrastructure from Paraguay to Canada. He also discussed how ETFs can transform Bitcoin from "fear trading" to "love trading," as well as how players and the younger quantitative trading community are driving Bitcoin adoption.Additionally, he mentioned Binance's 19 billion dollar liquidation and 350 trillion dollars in money supply, 40 trillion dollars printed during the COVID-19 pandemic, global MMT risks, Bitcoin mining in China with 1.4 trillion dollars in loans, central banks purchasing gold, the Central Bank of Paraguay and Bitcoin mining exports, and computing power as a commodity, along with Canada's AI advancements and the electricity advantages of Bitcoin miners.

Bitcoin Magazine reported that the CEO of the retirement account platform iTrustCapital, which has a scale of 1.3 billion dollars, stated that over 50% of the company's clients are buying Bitcoin.The CEO mentioned that investors have been continuously allocating since the price of Bitcoin fell to a low of 58,000 dollars.

According to CoinDesk, the government of Illinois has reached an agreement with the Digital Chamber of Commerce and the Illinois Blockchain Association to postpone the 0.2% cryptocurrency tax, originally set to take effect on January 1, 2027, by 6 months to July 1, but still requires approval from a state circuit court judge.If the postponement is approved, both parties will temporarily suspend their request for an emergency injunction and continue litigation regarding the compliance, enforceability, and constitutionality of the tax law.

TRON DeFi Summer announces the conclusion of S2, with S3 officially starting on October 4 at 08:00 (SGT), bringing a continuous 60-day Boosted APR incentive and a total prize pool of 2 million USD. The four major assets TRX, USDD, JST, and SUN will continue to participate.Users can enter JustLend DAO through Binance Wallet DeFi to explore on-chain yield opportunities. Users who have participated in S2 do not need to reapply; they can seamlessly participate in S3 and continue to qualify for rewards by maintaining their current holdings. Users who have not yet participated can prepare their assets in advance and join as soon as the event starts. More S3 gameplay will be announced soon, and the next chapter of the yield journey continues without interruption.