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sign

Sign usually refers to digital signature technology in the fields of blockchain and cryptocurrency. A digital signature is a cryptographic technique used to verify the authenticity and integrity of digital information. It encrypts and decrypts data using public and private keys, ensuring that only users holding the private key can generate a valid signature, thereby providing authentication and data integrity assurance. Digital signatures play a key role in smart contracts, transaction verification, and identity authentication.
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first_img SEC Commissioner Hester Peirce will resign on October 2

Hester Peirce, a commissioner of the U.S. Securities and Exchange Commission (SEC), announced she will resign on October 2. She published her resignation letter on social media platform X on Friday, revealing this date. Peirce is known in the industry as "Crypto Mom," having long advocated for clear rules for the crypto industry. During the tenures of Jay Clayton and Gary Gensler as chairmen, the SEC took a tough enforcement stance on crypto, while she continued to push for industry regulation. During the Trump administration, she was involved in rule-making and was appointed last year to lead the newly established SEC crypto working group.Her work in crypto encompasses policy statements and guidance on areas such as mining, staking, and meme coins, with the most important aspect being the classification and definition of various crypto assets to clarify regulatory jurisdiction. Recently, the SEC began proposing formal rules, the first being "Regulation Crypto Assets," which establishes a framework for issuing crypto assets that does not trigger strict securities regulation. The SEC also opened a path for tokenization of securities, known as "innovation exemptions," to initiate the era of securities tokenization with a five-year limited period.Peirce will become an associate professor at Regent University School of Law. After her departure, the SEC will have only two commissioners left, Atkins and Mark Uyeda, and the rules allow the two to constitute a quorum. On the same day, the SEC released a frequently asked questions document on crypto assets, addressing how to avoid triggering the "necessary managerial efforts" determination when marketing tokens, and discussing issues such as when staking receipt tokens and secondary markets are considered "promoters" of investment contracts.

Cosmos Hub: 1.227 million ATOM has been recovered from the Neutron attack case, with funds temporarily stored at a 4/6 multi-signature address

Cosmos Labs disclosed that on September 22, Neutron encountered a governance attack that led to the theft of liquidity from protocols such as Astroport, with approximately 1.73 million ATOM subsequently transferred by the attacker to Cosmos Hub. The Cosmos Hub itself was not attacked, and user funds were not affected. To prevent the stolen ATOM from being transferred out, Hub validators temporarily paused the network for about 24.5 hours and resumed block production on September 23 based on the patched Gaia v28.3.0.Cosmos Labs stated that during the pause, 1.227 million ATOM remained in the attacker's Hub address. When the network was restored, these were transferred to a 4/6 multi-signature address composed of Nansen, Keplr, Enigma, Silknodes, Kiln, and Polkachu through a one-time change. Previously, about 500,000 ATOM had been exchanged for ETH via THORChain and could not be recovered; another 169,000 ATOM entered the attacker's address after the network was restored due to THORChain refunds and were sold after being transferred to Osmosis. The current multi-signature address holds approximately 1.227 million ATOM, which can only be returned after authorization from a Cosmos Hub governance proposal. The related funds will not be staked, lent, or traded. The Neutron team expects to submit a recovery plan and related governance proposals next week.

first_img DeepSeek publicly releases the Agent training system DSec, signed by Liang Wenfeng

According to Investment World citing Quantum Bit reports, DeepSeek has publicly disclosed the technical details of the system DSec (DeepSeek Elastic Compute) used for training Agents, authored by Liang Wenfeng. This system can generate over 5,000 sandboxes per second, reaching 3 million in a day, with a peak simultaneous operation of 380,000; supporting this scale is a single cluster with approximately 160 nodes, 30,000 CPU cores, and 250TB of memory.DSec prepares four types of backends for four categories of tasks: FnCall, Container, MicroVM, and Full VM, with the training side called through a unified Python SDK libdsec. The scheduling chain includes IAM, API Server, scheduling engine, node Edge, network proxy Aether, and components within the sandbox Chronus. The environment is divided into three layers of read-only images: base image, workspace, and toolkit, which are used in combination at startup. Runtime data from the paper shows that the actual read ratios of Python, Java, and C++ container images are approximately 6.0%, 9.2%, and 8.7%, respectively.Starting from DeepSeek-V4.1, the Agent loop has been moved to the DSec worker container, no longer bound to the GPU Pod lifecycle. The security section disclosed reward hacking during training, including actions such as overwriting system files, swapping file data blocks, scanning networks, and triggering kernel crashes. Defensive measures include AppArmor and eBPF-based network filtering, but reports indicate that these measures do not completely resolve the issues.

Data: In 18 instances of tracking resignations, the price of the currency dropped in 15 instances three months later

Based on RootData's character and X influence data, and combined with market samples from 28 projects that launched on Binance Spot in the past two years, the dynamics of individuals and project performance show a noteworthy accompanying relationship.In terms of onboarding, among the 24 projects where character and influence data can be matched, in the months where 77 projects recorded new member entries, 65 saw a month-on-month increase in X influence, accounting for 84.4%, which is higher than the 67.4% in months without recorded new members. The median month-on-month growth rates for the two groups were 3.4% and 1.6%, respectively. For example, Vana added three new positions for growth, ecology, and product directors in August 2024, and its average monthly X influence rose from 189.14 in August to 607.50 in November, an increase of 221.2%.In terms of departures, 7 projects formed 18 comparable three-month observation windows, of which 15 saw a decline in coin prices; among the 17 windows with market capitalization data, 14 experienced a decrease in circulating market capitalization. The head of AI agency business at BIO Protocol left in October 2025, and from the end of that month to the end of January 2026, the coin price and circulating market capitalization decreased by 60.1% and 46.7%, respectively.The above statistics reflect accompanying phenomena. Continuously updating information on personnel onboarding, departures, and position replacements can help users track team expansion, organizational adjustments, and core talent loss, providing more basis for interpreting changes in influence and valuation.

first_img Coinbase plans post-quantum Bitcoin custody, compatible with various signature schemes

Coinbase Chief Cryptographer Yehuda Lindell stated on the MARA Foundation TV program that the exchange is designing a custody system capable of adapting to any post-quantum signature scheme that Bitcoin may adopt in the future. It is currently unclear which post-quantum signature scheme Bitcoin will use in practical applications. Lindell believes it is unlikely that a single signature scheme will be universally adopted, so preparations must be made for different outcomes across various blockchains.Coinbase is custodian for approximately $250 billion in assets for institutions such as BlackRock. Traditional Multi-Party Computation (MPC) relies on key sharding, but many post-quantum signature schemes may be "not friendly to MPC"; for example, hash-based signatures lack the arithmetic structure required for traditional cryptographic key splitting. Although cryptographers like Dan Boneh are researching relevant solutions, this research is still in a highly experimental phase, and it remains uncertain whether a viable MPC-like solution for hash signatures can be developed.To this end, Coinbase is exploring a backup architecture centered around programmable Hardware Security Modules (HSM), where private keys will be encrypted with post-quantum cryptography and assembled only within physically secure HSMs. Lindell stated that while the completion timeline is uncertain, once finished, "I will be able to say, I can support any scheme," without worrying about a blockchain adopting a signature scheme that it cannot support.
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