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According to The Block, MoonPay has launched the AI payment tool PayBox, allowing users to integrate it with ChatGPT or Claude, enabling the AI assistant to directly prepare payment transactions for booking flights, restaurants, or online shopping. Users can choose to require a passkey approval for each transaction or set a limit for the AI to complete transactions autonomously.PayBox integrates cryptocurrency wallets with payment cards, supporting cross-chain transactions based on the x402 smart entity payment standard. It initially supports Solana and EVM-compatible chains, including Ethereum, Hyperliquid, Tempo, Base, Robinhood Chain, Arbitrum, and Polygon, with plans to support more AI platforms and DeFi features, such as token exchanges and perpetual contract trading, within the next month.MoonPay states that wallet private keys are protected through multi-party computation (MPC) and trusted execution environments (TEE), ensuring that no single party (including MoonPay or the AI assistant itself) can independently access the complete private key or sign transactions; payment card information is processed and stored, allowing the AI entity to complete purchases without accessing the underlying card details; this system is built on the key management infrastructure acquired by MoonPay earlier this year from Sodot.

On July 29, Tibo, the product lead for OpenAI Codex, announced on X that all usage limits for ChatGPT Work and Codex users have been reset, and released a statement regarding the issue of rapid consumption of GPT-5.6 Sol usage.In the previous weeks, a large number of users reported that the consumption speed of Codex limits exceeded expectations. OpenAI emphasized that it has not reduced the usage quotas of any subscription plans. After investigation, several reasons were found: Sol is more inclined to work for longer periods, execute more tool calls, and coordinate complex workflows than previous models; it consumes more tokens at the same reasoning level; programmatic tool calls (code mode) allow Sol to execute tool calls in parallel, resulting in more responses and higher usage per round; the distribution of impact is extremely uneven, with median user efficiency being acceptable, but heavy users handling complex tasks consuming far more than expected.OpenAI stated that multiple improvements have been completed, and it is expected that usage endurance will be extended by about 18% in typical usage scenarios. Tomorrow, the five-hour limit that was paused during the investigation will be restored. OpenAI acknowledged that "capabilities and efficiency do not always improve synchronously, and some issues only become apparent after large-scale real-world use; we should have realized this earlier."

Fully Homomorphic Encryption (FHE) company Zama CEO Rand Hindi stated on X on Monday that the company has achieved benchmark results of 1,000 confidential transactions per second on GPUs, an increase of about 5,000 times compared to the 0.2 transactions per second demonstrated at ETHcc in 2022. Hindi mentioned that the cost of running an FHE node is approximately $0.000004 per ERC7984 transaction, significantly lower than zero-knowledge proofs, but this comparison has not been independently verified. The benchmark has not yet been activated on any mainnet, is self-reported data from the company, and the testing methods have not been published, with plans to go live by the end of the year.Hindi also set long-term goals: 10,000 tps by 2028 and 100,000 tps by 2030. Zama has been active recently: on July 24, a confidential RFQ exchange product was launched, which within weeks shielded over $121 million USDT on Ethereum, collaborated with Elliptic to enhance compliance screening for confidential transactions, and co-founded the Confidential Token Association with OpenZeppelin and Inco to standardize encrypted ERC-20 tokens. Zama previously completed a $57 million Series B funding round.

According to a report by the WSJ, Nvidia has invested in the AI laboratory Safe Superintelligence (SSI), founded by former OpenAI chief scientist Ilya Sutskever. The two parties have reached a long-term cooperation agreement aimed at expanding SSI's computing resources while helping Nvidia secure important clients in the AI field. Both companies stated that Nvidia made a "large-scale" investment after understanding some of SSI's research progress, but did not disclose the specific amount.As part of the collaboration, SSI will receive a significant amount of Nvidia's flagship GPU resources, with its computing power expected to increase by an order of magnitude. Previously, SSI primarily relied on TPU chips provided by Google for AI research and development. This collaboration indicates that Nvidia is further expanding its AI chip ecosystem and binding future computing power demands through investments in top AI laboratories.SSI was established in 2024 by Ilya Sutskever, with the goal of developing "Safe Superintelligence." The company has previously raised about $2 billion in funding, with investors including Andreessen Horowitz and Sequoia Capital, and reached a valuation of approximately $30 billion last year. This is not Nvidia's first investment in an AI company founded by former core members of OpenAI. In March of this year, Nvidia also invested in Thinking Machines Lab, founded by former OpenAI chief technology officer Mira Murati, whose first AI model is trained on Nvidia hardware.Ilya Sutskever is one of the important researchers in the field of modern artificial intelligence, having co-founded OpenAI and promoted the development of large model technologies such as ChatGPT. However, after leaving OpenAI, he began to question the approach of solely relying on expanding data and computing power to drive AI progress, turning instead to explore new directions in superintelligence research.

In response to the shutdown of BitMEX, BitMart, and rumors of several CEXs facing shutdowns, Zhao Changpeng stated, "It's too cruel, I hope this is a bottom signal."

Binance founder CZ responded to the question "Why not acquire smaller CEXs" by stating that acquiring centralized exchanges is different from other businesses. Once a hack occurs after the acquisition, it is difficult to determine whether it is a backdoor left by the previous team or a new issue, thus the security and compliance risks are higher. He emphasized that acquiring CEXs is still possible, but the due diligence and risk control processes are more complex.

Zhao Changpeng reposted a previous post on the X platform about "whether to find the best entry point for long-term holding in a bull market or bear market," and replied "DCA."DCA stands for Dollar-Cost Averaging, which refers to investors investing funds at fixed intervals, reducing the impact of price fluctuations at a single point in time on the cost of their holdings by buying in batches.Zhao Changpeng also stated that if one does not understand this term, they can search and learn on their own, and emphasized that mastering basic financial terminology is very important.

According to the official status page of OpenAI, the widespread issues that ChatGPT and Codex experienced have been resolved, with the error rate remaining elevated for over 1 hour.

According to social media reports, OpenAI's ChatGPT and Codex are experiencing widespread outages.

Binance founder Zhao Changpeng paid tribute to BitMEX founder Arthur Hayes. It's unfortunate to see BitMEX shut down. Some thoughts:BitMEX was the first to launch 100x cryptocurrency trading back in 2014. Futures contracts had existed before this, making Friday trading exceptionally busy. BitMEX only accepted Bitcoin deposits, supported only one chain, allowed withdrawals once a day, and required multi-signature wallets. These seemingly inconvenient restrictions actually protected them from hacker attacks.After 18 months of struggle, the four founders ultimately admitted to violating the Bank Secrecy Act (BSA) a month before the trial. They were each fined $10 million and placed under house arrest. No one went to prison as a result. However, their business ultimately could not withstand the "cryptocurrency war" initiated by the Biden administration.In the end, the liquidation process of BitMEX appeared orderly, and users were able to withdraw their assets. Tribute to Arthur Hayes.

Libbitcoin developer @evoskuil stated that the latest version of Libbitcoin Server can complete the initial block download of a Bitcoin full node in 55 minutes and perform full verification. This speed improvement comes from a new GPU-based signature verification system that runs in parallel with conventional script verification, rather than as a separate step.The software does not pause execution to verify each ECDSA and Schnorr signature; instead, it captures signature checks, batches them, and processes them via GPU while the remaining verification continues. @evoskuil indicated that this method achieves about a 99.5% signature capture rate without blocking verification, thus eliminating the need for a second verification. If a batch signature check fails, the software traces it back to the corresponding block and marks that block as invalid. He also mentioned that this design can batch process an almost arbitrary number of signatures, keeping the GPU ahead of the remaining verification process and significantly shortening the full node synchronization time.

OpenAI's programming agent Codex and office agent ChatGPT Work have a combined weekly active user count of 10 million. Just 9 days ago, it was 6 million. OpenAI subsequently reset the usage limits for paid users of both products.In March of this year, Codex had only 2 million weekly active users, and now the combined total for both products has expanded to 5 times.OpenAI had previously promised that for every additional 1 million users from 3 million to 10 million, the usage limits would be reset. This is the final milestone of this commitment.

Binance founder CZ recently posted on social media that artificial intelligence (AI) and Bitcoin (BTC) serve different functions; AI drives productivity improvements, while Bitcoin is used to combat inflation and protect wealth. CZ stated, "AI is great, but it cannot protect you from the effects of inflation; Bitcoin can."CZ believes that the market often views AI and Bitcoin as two major hot investment themes, but their natures are fundamentally different. AI is a technology that enhances business efficiency and economic productivity, while Bitcoin is a digital asset with a fixed supply. He pointed out that the AI industry is rapidly developing, with global companies continuously investing billions of dollars in AI software, data centers, chips, and other infrastructure, driving transformations in various sectors such as healthcare, finance, and manufacturing. However, AI companies can issue more shares and raise funds for expansion, and their investment value still depends on business performance and market competition. In contrast, Bitcoin has a total fixed supply of 21 million coins, and holders possess a non-dilutable scarce asset. CZ believes this characteristic gives Bitcoin long-term value storage properties, providing protection when the purchasing power of fiat currency declines due to inflation.CZ has also previously stated that the AI boom may attract some funds that would have originally flowed into the Bitcoin market. As AI companies like OpenAI and Anthropic gain more capital attention, some investors may sell other assets to allocate to AI-related investments. However, CZ believes that AI and Bitcoin are not in competition; rather, they should be viewed as complementary assets: AI drives technological advancement and productivity improvements, while Bitcoin offers a way to store value that is unaffected by supply expansion.

CZ stated that AI is powerful, but it cannot protect personal assets from the impact of inflation, while Bitcoin can.

B.AI announced that the entire series of GPT-5.6 models has officially landed on Web Chat. Previously, the B.AI API had already integrated the three models: GPT-5.6 Sol, GPT-5.6 Terra, and GPT-5.6 Luna. Starting today, users no longer need to configure the API; they can log in to directly experience the complete capabilities, including chat Q&A, content creation, code writing, and complex reasoning. This full opening marks the all-scenario implementation of the new generation of models within the B.AI ecosystem, providing "out-of-the-box" intelligent services for developers and ordinary users. In the future, B.AI will continue to lower the barriers to using cutting-edge AI technology, facilitating efficient creation and decision-making.

B.AI announced that it has officially integrated OpenAI's latest generation GPT-5.6 full model series into its API network. Starting today, developers can directly call three newly positioned models through B.AI's single interface, including GPT-5.6 Sol, which focuses on complex reasoning tasks, GPT-5.6 Terra, which is suitable for everyday workloads, and GPT-5.6 Luna, which emphasizes rapid response and high cost-effectiveness. This integration aims to provide developers with more flexible and stable computing power support in scenarios such as building intelligent agents, optimizing workflows, and exploring AGI applications.

According to BBX data, yesterday the global US stock market and companies listed on the Tokyo Stock Exchange made significant moves in the accumulation of digital asset reserves. The latest updates from two core companies are as follows:GPUS core treasury breaks the 1,000 mark: Artificial intelligence data center company Hyperscale Data, Inc. (NYSE American: $GPUS) officially announced that the number of bitcoins held in its treasury has officially exceeded 1,000. Management stated that the company will continue to closely align with market conditions and existing capital allocation opportunities, supported by its core data center business, to continuously manage and expand its bitcoin reserve scale.Metaplanet raises $137 million through targeted private placement: Metaplanet Inc. (TSE: $3350) announced that it will issue new shares to specific institutional investors through the Third-Party Allotment mechanism under Japanese securities law, aiming to raise approximately $137 million (equivalent to 21.4 billion yen), with all funds to be used for purchasing bitcoin. The company accumulated 2,823 BTC in Q2 this year, and as of June 30, its total holdings have reached 43,000 BTC (valued at approximately $2.67 billion). Based on the current market price of about $62,000 per coin, this lightning private placement is expected to add approximately 2,210 BTC to its reserves, helping it strive towards its ultimate goal of 100,000 BTC by the end of the year.