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According to CoinDesk, Brazil's state-controlled energy company Petrobras is testing the Cardano blockchain to track statements related to low-carbon fuels.The Cardano Foundation announced two research projects on Wednesday, one focusing on sustainable aviation fuel, which is a low-carbon aviation fuel alternative that can be used in existing aircraft and airports, and the other on Diesel R, which is diesel produced by Petrobras using renewable materials such as vegetable oils and animal fats.The aviation fuel project targets the book-and-claim model in green fuel sales: airlines can pay for the environmental benefits of sustainable fuel, even if the fuel itself is used elsewhere. This model requires recording the benefit attribution and claiming time to avoid double counting the same emissions reduction.The application records the source, recipient, and claiming time of each benefit through Cardano. In real scenarios, passengers can input their departure and destination airports to calculate the corresponding fuel benefits and receive a certificate linking their quota to the original fuel certificate. The diesel project records information on fuel production, transportation, and usage, compiling it into a complete fuel process history, which helps companies report Scope 3 emissions.Frederik Gregaard, CEO of the Cardano Foundation, stated that Brazil has been one of the most stable adopters of Cardano, from government agencies like SERPRO to industrial sectors like SENAI, and Petrobras continues to value the on-chain traceability and transparency.He mentioned that with x402 landing on Cardano and Fireblocks increasing support for Cardano native tokens, institutional interest continues to grow.

According to official news, the Gate event contract "Winning Streak Challenge" will officially start on October 1 at 08:00 (UTC+8) and will last until October 11 at 08:00 (UTC+8).This challenge covers 5-minute cycle events for BTC and all stock event contracts. Users can participate after completing the activity registration. The event sets a total reward of 20,000 USDT, covering multiple gameplay options such as winning streak ladder, win rate leaderboard, trading volume sprint, and new user first order gift.Among them, users who achieve a maximum winning streak of 15 can receive 100 USDT, with a total winning streak prize pool of 6,000 USDT; the win rate leaderboard has a prize pool of 3,500 USDT, and users who meet the criteria of cumulative valid matches ≥ 100, single net purchase ≥ 20 USDT, and win rate ≥ 40% can participate in the ranking, with the first place receiving 1,200 USDT.Users whose cumulative event contract trading volume reaches 20,000 USDT can also share a prize pool of 5,000 USDT based on their trading volume proportion, with a maximum of 500 USDT per user. In addition, during the event, the first 1,000 new users who complete their first transaction in the event contract and have a first net purchase value ≥ 20 USDT can receive a 5.5 USDT event contract experience voucher.Currently, the Gate event contract has covered two major sectors: cryptocurrency assets and stocks. Users can participate in price direction predictions around different assets and time windows, looking for trading opportunities that suit their own judgment in the short-cycle market changes.

The decentralized lending protocol Abracadabra initiated a vote on Snapshot, proposing to liquidate the entire protocol, converting the remaining collateral assets into ETH, and proportionally compensating MIM stablecoin holders. The team estimates that the recoverable asset support is approximately 900,000 USD, while the scale of bad debts borne by the protocol reaches up to 21 million USD.According to the proposal, MIM holders are expected to recover only about 0.04 USD for every 1 USD of face value. If the vote passes, Abracadabra will officially enter the liquidation process, and the remaining collateral will be converted into ETH for compensation.

The perpetual contract trading platform based on Hyperliquid technology, papertrade.xyz, announced that it will officially launch on October 10, 2026.

According to CoinDesk, brokerage Robinhood (HOOD) announced at the HOOD Summit held in Houston, Texas, that it will launch executable trading AI agents, cryptocurrency perpetual contracts with up to 10x leverage, and weekend trading for U.S. stocks, while extending options trading hours, providing more intraday margin, and introducing contracts based on corporate earnings metrics.Robinhood Agents allow customers to create AI agents within the app, choose models from OpenAI or Anthropic, and authorize them to access independent trading accounts. The agents can analyze the market, create watchlists, and trade stocks, options, and crypto assets. A feature called Loops allows customers to give long-term instructions to the agents to monitor the market and execute strategies when specific conditions arise. Since opening its trading infrastructure to external AI agents earlier this year, over 150,000 agent accounts have been created. By default, every trade proposed by the agent requires customer approval, and users can disable this protection; agents cannot use margin when they go live and can only utilize funds in dedicated accounts.Regarding perpetual contracts, Robinhood plans to offer them to eligible U.S. customers through Robinhood Derivatives and Bitstamp, initially focusing on crypto assets, with Bitcoin and Ethereum contracts having leverage up to 10x, while other supported assets starting at 3x. Additionally, Robinhood will provide earnings binary contracts through Cboe, allowing customers to trade directly on whether companies meet revenue, earnings per share, and other metrics; weekend trading will offer select stocks and ETFs through Bruce ATS.

According to Gate market data, Oracle (ORCL.N) rose by 5% during the trading session.

According to official news, the Gate perpetual contract area for stocks was launched on September 29 at 20:00 (UTC+8) with the trading of contracts for TWST (Twister BioTech), CVNA (Carvana), RUM (RUM Group), WBD (Warner Bros. Discovery), CRML (Critical Metals Company), and BWET (Breakwave Shipping ETF). Within one hour of the launch, trading bots and Order Tracking features were made available, supporting 1-20 times long and short operations.At the same time, Gate has launched CARDS (Collector Crypt) and XDP (Doppler Finance) contract trading, trading bots, and Order Tracking features. Among them, CARDS contracts support 1-10 times long and short operations, while XDP contracts support 1-20 times long and short operations. CARDS is a platform for real-world assets (RWA) of physical collectibles; Doppler Finance is dedicated to building tokenized capital market infrastructure, covering areas such as yield management, collateral asset utility release, and tokenization of real-world assets (RWA). This new addition further enriches the selection of trading targets in the Gate contract market.

Former White House economic advisor and founder of Geopolitica Institute Pippa Malmgren stated in an interview published by Bitcoin Magazine that the core of the security agreement between the United States and Greenland is not the ice sheet or minerals, but the space race. She pointed out that missile tracking and satellite ground stations give the Arctic region critical strategic value and believes that Diego Garcia and the Chagos Islands will be the next focal points.Malmgren then linked geopolitics to the market, discussing U.S. debt, China's selling of U.S. Treasury bonds, and the future of Bitcoin. She mentioned that the U.S. debt-to-GDP ratio has reached 100% and analyzed the government's plan to escape debt through growth, as well as the reasons behind China's reduction of U.S. Treasury holdings.She also discussed the nationalization of cutting-edge AI laboratories and AI security, the evolution of currency from fiat to digital currency, the application of stablecoins and Bitcoin in AI agent scenarios, and topics such as Austin becoming the "new Shenzhen."

Hyperliquid has now launched the Bitcoin Implied Volatility Index Contract (BVIV), supporting up to 5x leverage, deployed by Markets.xyz.

WEEX Exchange Announcement: The "Daily Gifts, Live Drawings, Trade to Win iPhone Duo" trading competition successfully concluded on September 27, and an online award ceremony will be held on September 29 at 19:00 (UTC+8), where the final rankings and reward distribution arrangements will be announced live.During the live broadcast, multiple rounds of lucky draws will also be held, with prizes including 4 × 4 Apple Watch Ultra, 5 × 5 Apple AirPods, and WEEX VIP experience cards.

K33 Research Research Director Vetle Lunde analyzed that in the past 7 days, the total open interest of CME and perpetual contract BTC decreased by 49,000 contracts, marking the largest weekly decline since October 2025, during which market volatility was low and funding rates continued to decline.Unlike previous significant reductions in positions that were accompanied by forced liquidations, this round of deleveraging is more akin to proactive profit-taking, with overall market sentiment trending towards rationality.

During an interview with The Block at the Ondo event held in Seoul, South Korea, Ondo Perps CEO David Wells stated that offering perpetual contracts in the United States is a "huge opportunity," and that it is "reasonable" for Ondo to explore such expansion. He mentioned that everyone is paying attention to the U.S. because there are now more opportunities opening up that were previously impossible. However, he also noted that U.S. perpetual contract products will differ from existing products, with structures that vary from non-U.S. markets.Wells' remarks come as U.S. regulators are testing how perpetual contracts can enter the U.S. market with several companies. In August, Trump stated that the CFTC is "bringing Hyperliquid to the U.S. in a fully compliant and legal manner." Kraken's parent company, Payward, has announced plans to launch Hyperliquid's HIP-3 perpetual market for eligible U.S. customers through the CFTC-regulated Bitnomial Exchange and NinjaTrader Clearing. Coinbase has also applied to launch single-stock perpetual contracts in the U.S. Earlier this month, Ondo Finance submitted a letter to the SEC and CFTC arguing that U.S. stock perpetual contracts fall under the securities futures category as defined by the Commodity Futures Modernization Act of 2000.Wells indicated that while the U.S. version of perpetual contracts and its market structure may be similar, settlement and clearing would need to change to comply with U.S. regulations. He did not confirm any plans to enter the U.S. market, stating that the team has not "gone too far" in exploring the U.S. market.

According to on-chain analyst Ai Yi's monitoring, a certain address has withdrawn 11,600 ETH from the exchange in the past 5 hours, worth 30.97 million USD, with an average withdrawal price of 2,667.46 USD, currently showing an unrealized profit of 552,000 USD.

The Binance Futures platform will launch multiple U-based TradFi perpetual contracts on September 29, including CRMLUSDT, BWETUSDT, ACNUSDT, MPUSDT, SECZUSDT, UNHUSDT, and NKEUSDT, with specific launch times from 17:00 to 17:30, and a maximum leverage of up to 20 times.

According to the official announcement, the Gate Yubi Treasure BTC limited-time benefit event is currently ongoing, with rewards including interest rate increases and experience gold.From September 28, 19:00 to October 7, 19:00 (UTC+8), new and existing users who complete registration and achieve a net recharge of 0.01 BTC or more, and use the recharged BTC to purchase the Yubi Treasure 7-day fixed-term product, can enjoy an additional 3% annualized interest rate increase. The interest rate increase amount for users will match the net recharge amount of BTC during the event. The interest rewards will be distributed in USDT, with a total prize pool of 100,000 USDT, distributed in the order of subscription time.In addition, during the event, users with a net recharge of BTC ≥ 0.1 BTC can also receive an additional 10 USDT contract experience gold (limited to the first 1,000 participants), and the rewards will be distributed within 5 working days after the event ends.

The 10-year U.S. Treasury yield returned to above 5.2% overnight, reaching a high not seen since 2007, putting pressure on global risk assets. Bitcoin has fallen back to around $83,000, with altcoins experiencing even larger declines. In this regard, Cloud, the chief analyst at Huobi HTX, believes that this drop is more akin to a normal pullback after a rebound and does not constitute the starting point of a trend reversal. The high U.S. Treasury yields mainly suppress valuations, with limited impact on the overall liquidity. The funding structure and holding costs of the crypto market itself have also not been disrupted. This round of decline seems more like a clearing of positions before key data is released.It is important to be cautious about the divergence between Bitcoin and altcoins. During a phase of marginal liquidity tightening, funds tend to concentrate on the most certain top assets; altcoins lack incremental funds to support them, and with heavier leverage, their pullbacks are therefore amplified. This divergence is likely to continue before the release of this week's PCE and non-farm data. If the data falls short of expectations, altcoins will have greater elasticity and thus higher risks; if the data exceeds expectations, Bitcoin's relative strength will be more pronounced. Whether Bitcoin can stabilize at key support levels will be the main signal to determine if this round of pullback has ended.Note: The content of this article does not constitute investment advice, nor does it constitute any offer, solicitation, or recommendation of investment products.

The on-chain tracking platform MistTrack under Slow Mist has monitored that the attacker of the security incident on the cryptocurrency exchange Bitget previously attempted to transfer the stolen funds to the cross-chain DEX protocol Chainflip for relocation, but was directly refused deposit by the relevant brokers.On-chain processing results show that the funds were not frozen by the protocol party, but were directly returned along the original route, and the attacker failed to successfully utilize this channel to complete the transfer. MistTrack stated that it will continue to track the subsequent on-chain movements of this batch of stolen funds.

The U.S. Securities and Exchange Commission (SEC) recently updated the relevant content regarding token buybacks in the frequently asked questions (FAQ) section related to cryptocurrencies. The new regulations clearly state that if there is no centralized entity behind the token buyback, then the buyback arrangement typically does not constitute an Investment Contract.

The Arbitrum Foundation announced the launch of the Arbitrum Security Program, providing smart contract audit subsidies for teams building projects on the Arbitrum platform, covering applications on the testnet, mainnet projects, projects migrating from other blockchains, and exclusive Arbitrum chains.