witch

Tin tức từ ChainCatcher, giao thức oracle phi tập trung Switchboard đã tweet rằng, vào tối qua có báo cáo về việc mạng Switchboard dựa trên ngôn ngữ Move có thể đã bị xâm nhập. Các cộng tác viên đã phối hợp với các đội ngũ liên quan và tổ chức an ninh, tạm ngừng mạng Switchboard trên Aptos, Sui, Iota và Movement.Mặc dù chưa có báo cáo tương tự về việc xâm nhập vào Solana, nhưng để thận trọng, khuyến nghị người dùng nên nhanh chóng chuyển sang các giải pháp thay thế khác ít nhất là tạm thời, trong khi vấn đề này đang được điều tra. Thêm chi tiết sẽ được công bố sau.

Theo thông tin từ ChainCatcher, theo thông báo chính thức, Base Build đã công bố ra mắt Base Verify Onchain, nhằm giải quyết vấn đề tấn công phù thủy trong hệ sinh thái blockchain. Tính năng này đã được triển khai trên mạng thử nghiệm Base Sepolia, cho phép các nhà phát triển thực hiện quy tắc "một người dùng thực, một lần nhận". Base Build cho biết, cơ chế airdrop truyền thống dễ bị thao túng bởi ví hàng loạt, phần thưởng lớn thường bị các nông dân airdrop chuyên nghiệp lấy đi, trong khi người dùng thực sự tham gia xây dựng sản phẩm chỉ có thể nhận được lợi ích hạn chế.Base Verify Onchain giúp các dự án nhận diện nhiều ví do cùng một người dùng kiểm soát bằng cách tạo ra một mã định danh ổn định cho mỗi người dùng thực, đồng thời không cần thu thập tên, thông tin tài khoản và các dữ liệu riêng tư khác của người dùng. Người dùng có thể hoàn tất xác minh thông qua các tài khoản hiện có như Coinbase, Instagram, X, TikTok, hệ thống sau đó sẽ trả về chứng nhận danh tính đã được xác minh cho hợp đồng thông minh, cho phép hợp đồng tự động thực hiện các quy tắc như giới hạn nhận, giới hạn bỏ phiếu hoặc kiểm soát hạn mức. Hiện tại, Base Verify đã được sử dụng hơn 300.000 lần và phục vụ cho các dự án hợp tác như Base App, Cody, Scratch và Bracket. Base Build cho biết, Verify Onchain sẽ cung cấp airdrop, phát hành token, bỏ phiếu quản trị và cơ chế khuyến khích người dùng công bằng hơn cho các ứng dụng phi tập trung. Các nhà phát triển có thể sử dụng công nghệ này để giới hạn số lần nhận của một người dùng thực, phân bổ phần thưởng dựa trên danh tính thực, hoặc chuyển đổi tín hiệu từ thế giới thực thành uy tín trên chuỗi, từ đó giảm thiểu tác động của robot và thao túng ví nhiều đến tính công bằng của các ứng dụng Web3.

Tin tức từ ChainCatcher, nhà điều hành trung tâm dữ liệu Switch đã công bố chính thức khởi động vòng gọi vốn riêng tư 2 tỷ USD, a16z dẫn đầu. Các nguồn tin cho biết, định giá doanh nghiệp của Switch sau vòng gọi vốn này (bao gồm nợ) có thể gần 50 tỷ USD, giá trị cổ phần khoảng 19 tỷ USD (không bao gồm đầu tư mới), a16z sẽ đầu tư khoảng 400 triệu USD. Ngoài ra, Goldman Sachs và JPMorgan Chase cũng đang hỗ trợ thúc đẩy vòng gọi vốn này, vòng gọi vốn này có thể chuẩn bị cho việc Switch thực hiện lần đầu ra công chúng (IPO) sớm nhất vào năm sau. Hiện tại, các cuộc đàm phán liên quan vẫn đang diễn ra, quy mô gọi vốn, định giá và thời gian vẫn có thể điều chỉnh.Switch có trụ sở tại Las Vegas, được thành lập vào năm 2000, hiện đang vận hành các trung tâm dữ liệu tại Nevada, Michigan, Georgia và Texas, phần lớn cổ phần thuộc về DigitalBridge. DigitalBridge trước đó đã tư nhân hóa Switch vào năm 2022 với giao dịch khoảng 11 tỷ USD (bao gồm nợ) cùng với các nhà đầu tư như IFM Investors.

According to Onchain Lens monitoring, a certain whale closed its ETH short position and switched to holding 19,700 ETH (20x leverage) long position, worth $39.5 million, with an unrealized loss exceeding $205,000.

According to Lookonchain monitoring, the trader who opened a short position worth over 100 million USD in ETH yesterday has closed their position, incurring a loss of 260,000 USD, and then switched to going long on BTC, opening a long position of 175.04 BTC (13.43 million USD) with 20x leverage.

On May 14, BNB Chain released the "BSC Post-Quantum Cryptography Migration Report," stating that it has completed the migration testing for quantum-resistant cryptography for transaction signatures and the consensus layer, using the NIST standardized post-quantum signature algorithm ML-DSA-44 (Dilithium) and the pqSTARK aggregation scheme.The report shows that BSC has replaced transaction signatures from ECDSA to ML-DSA-44 and switched consensus voting aggregation from BLS12-381 to pqSTARK to address the potential threats posed by future quantum computing to the existing elliptic curve cryptography system. However, post-quantum signatures also significantly increase the on-chain data volume: the size of a single transaction has increased from about 110 bytes to approximately 2.5KB; the block size in a 2000 TPS scenario has increased from about 130KB to around 2MB; and the TPS in the testing environment has decreased by about 40%-50%.BSC stated that the current network bottleneck mainly comes from the larger transaction data propagation, rather than the consensus protocol itself. Meanwhile, the consensus layer aggregation still maintains high efficiency, with pqSTARK achieving a signature compression ratio of about 43:1, and the additional burden on validators remains within a controllable range. The report concludes that existing technology can achieve "quantum-resistant" deployment for blockchain, but future issues related to network bandwidth and data scalability still need to be addressed.

According to CoinDesk, hardware wallet manufacturer Ledger has suspended its plans to go public in the U.S. due to unfavorable market conditions. Sources say that Ledger had discussions with investment banks such as Goldman Sachs, Jefferies, and Barclays about an IPO in the U.S. this year, with a potential valuation of around $4 billion, but has not yet submitted an S-1 registration document to the SEC. The company is evaluating other options, including private financing.The report points out that after several crypto companies go public in 2025, many institutions, including Kraken, have postponed their IPOs due to weakening token prices, declining trading volumes, and stock market volatility. Additionally, the only crypto-native company that went public in 2026, BitGo, has seen its stock price drop about 36% below its offering price.

According to Onchain Lens monitoring, the whale Loracle.hl has closed positions in TON, BTC, and CL, making a profit of 3.9 million dollars, while also closing about 96% of its ZEC long positions.Meanwhile, this address has increased its short position of 1.2398 million HYPE by 5 times to a value of 53.23 million dollars, with the current total accumulated profit nearing 37 million dollars.

In response to KelpDAO's accusations against LayerZero regarding the rsETH security incident, LayerZero CEO Bryan Pellegrino tweeted a detailed response, stating that much of the content is completely false.Bryan pointed out that KelpDAO initially used LayerZero's default MultiDVN or DeadDVN configuration and later manually migrated to the 1/1 configuration; under the 1/1 configuration, almost 100% of the transaction volume came from rsETH; LayerZero's documentation repeatedly states that the 1/1 configuration is not recommended for production environments and provides specific transaction records and document screenshots as evidence.

According to The Block, after experiencing a bridge attack of approximately $292 million last month, Kelp DAO decided to abandon LayerZero and instead adopt Chainlink's cross-chain infrastructure.Kelp DAO will use the Chainlink Cross-Chain Interoperability Protocol, which requires 16 independent node operators to validate cross-chain transactions, becoming the first major protocol to leave LayerZero after the attack. During the attack, the LayerZero-driven OFT bridge used a 1-of-1 single validator configuration, with 47% of LayerZero applications using the same configuration at that time. LayerZero subsequently announced the cessation of single validator configurations.Kelp DAO stated that migrating to Chainlink CCIP directly addresses the architectural vulnerabilities in the attack. rsETH will also adopt a cross-chain token standard. As part of the DeFi United rescue operation, LayerZero has donated and lent approximately 10,000 ETH to Aave.

According to BBX data, yesterday the credit management of mining companies, the update of Ethereum treasury reserves, and the expansion of Bitcoin reserves were synchronized. The core dynamics are as follows:Riot Platforms, Inc. (NASDAQ: $RIOT) signed and publicly disclosed SEC Form 8-K reported by CoinDesk on April 28, stating that the company has completed the second amendment to its credit agreement with Coinbase Credit, Inc., switching the original floating rate $200 million secured term loan to a fixed rate and extending the maturity date by 364 days, while retaining the option for a further extension of 364 days; the loan scale and collateral structure remain unchanged, with the collateral still being Bitcoin, USDC, and cash held in Coinbase Custody. The company's Bitcoin holdings have decreased from 19,368 coins at the beginning of the year to 15,680 coins; if the BTC price continues to decline, the selling pressure under the loan-to-value ratio constraint will persist, which is an analytical judgment and not an official disclosure from the company.Bitmine Immersion Technologies, Inc. (NYSE: $BMNR) released its latest holdings update on April 27, stating that as of that day, it holds 5,078,386 ETH (valued at approximately $2,369 at the market price, with a market cap of about $12.04 billion), along with 200 BTC, $200 million in Beast Industries (under MrBeast) equity, and $91 million in cash, bringing the total of combined crypto assets and strategic investments to about $13.3 billion; the ETH holdings account for approximately 4.21% of the total circulating supply, which is the scale accumulated by the company since launching its Ethereum treasury strategy in June 2025.Strive, Inc. (NASDAQ: $ASST) disclosed through an official announcement on GlobeNewswire on April 27 that the company has purchased approximately 789 BTC (costing about $61.43 million, with an average price of about $77,890), bringing the total holdings to approximately 14,557 BTC as of April 24; during the same period, it held $90.5 million in cash and equivalents, and $50.3 million in Strategy preferred shares (STRC), with a total market value of BTC reserves of about $1.13 billion, surpassing Hut 8 to rank ninth among publicly listed companies in Bitcoin reserves globally.

According to market news, the adult website Pornhub has stopped using Tether (USDT) for creator revenue settlements and has switched to USDC issued by Circle.In an email sent to creators, Pornhub stated that this switch aims to make revenue payments "more reliable" and emphasized that USDC is a fully reserved, compliant stablecoin that meets the EU MiCA regulatory framework. Pornhub previously introduced USDT in 2020 after PayPal announced the termination of its partnership with the platform, and it built its payment infrastructure with the help of the TronLink wallet owned by Sun Yuchen. After this switch, the aforementioned partnership has also been removed from its creator page.

According to Vitalik Buterin (@Vitalik Buterin), the DNS registrar of eth.limo was attacked, and users are advised not to visit vitalik.eth.limo or other eth.limo related pages temporarily, until the official confirmation of normal recovery.

According to monitoring by Hyperinsight, market volatility has intensified. A whale with an address starting with 0xf51 quickly adjusted its positions within just 10 minutes, converting its previously opened BTC short position with 40x leverage into a long position, and then slightly reduced its holdings. Currently, this address still holds approximately 8 million dollars in BTC long positions, with an average opening price of 71,961 dollars, and is currently in a floating loss.In addition, this whale also holds a SOL short position with 20x leverage, valued at about 4 million dollars, as well as a short position in xyz:XYZ100 worth approximately 1.8 million dollars. All of these positions are currently in a slight floating loss.

Aster announced an update to its tokenomics and a restructuring of ecosystem emissions, replacing the previous monthly linear unlocking mechanism with a staking-only emission model.Previously, 78.4 million ASTER (approximately 1% of the maximum supply) were unlocked on a linear schedule each month; after the update, ecosystem tokens will only be released as staking rewards, currently at a rate of 450,000 ASTER per cycle (weekly), equivalent to a monthly release of 1.8 million to 2.25 million ASTER.Aster stated that since the TGE on September 17, 2025, all unlocked ecosystem and community tokens, aside from staking rewards, have remained untouched, and the relevant token holdings can be publicly verified through addresses starting with 0x0A55.

Backpack founder Armani Ferrante posted a response to recent community FUD, addressing topics such as OTC trading, Mad Lads equity, witch hunts, and token prices.Armani stated that the team will not sell their tokens through OTC to cash out, and their previous comments about OTC were only to assist buyers in finding tokens. All users holding Mad Lads tokens before the TGE will retain their Backpack VIP status, while new users will not enjoy this status.Additionally, Armani emphasized that the FDV value 24 hours or a week after the TGE is not practically significant, and short-term FDV is not a core metric. The team's interests are deeply tied to the success of the token; if the token price goes to zero, the team will not be able to earn profits.Regarding witch hunts, he acknowledged that the team's previous handling was too mechanical and did not fully consider the complexity of community dimensions. The team is currently re-evaluating relevant cases. The team is continuing to advance the review of witch hunt cases and return to development work.

According to monitoring by Hyperinsight, a whale opened a short position of 176 BTC (worth about $12.4827 million) with 40x leverage 19 minutes ago, quickly switching to a long position after a small loss of $7,000, opening a long position of 190 BTC (about $13 million) at the same leverage.The average opening price was $70,963.6, and the liquidation price was $67,599. This whale has frequently opened high-leverage BTC contracts and has recently incurred an overall loss of about $8.5 million in the account.

According to Lookonchain monitoring, the whale 0xf4b8 closed a crude oil futures contract with a profit of $755,000, and then opened a 30x short position on XYZ100 (NASDAQ-100) with a position size of over $25 million, with a liquidation price of $26,688.65.

According to market news, a certain whale switched from gold to BTC after making a profit of $600,000:A month ago, he purchased 1,637 XAUt with 8.1 million USDC at a price of $4,948. Today, a month later, gold has risen to over $5,300. He sold the 1,637 XAUt (worth $8.7 million) 9 hours ago in exchange for 125.9 WBTC. The selling price of XAUt was $5,315, and the buying price of WBTC was $69,091.