ChainCatcher News, the U.S. Securities and Exchange Commission (SEC) released a statement on March 20, stating that the "mining activities" of the proof-of-work (PoW) mechanism do not constitute the issuance of securities under the definitions of the Securities Act of 1933 and the Securities Exchange Act of 1934.The statement pointed out that neither individual mining nor pool mining meets the key element of "reasonable expectation of profits derived from the efforts of others" in the Howey Test.The SEC stated that miners secure the network, validate transactions, and add new blocks by contributing computational resources, and the rewards they receive are payments for the services provided to the network, rather than profits derived from the efforts of others. The SEC emphasized that this determination applies only to specific types of mining activities, and other transactions involving crypto assets will still require case-by-case analysis.

ChainCatcher message, Federal Reserve Chairman Powell: We are at a stage where we can either cut interest rates or maintain the current clearly tight policy stance.

ChainCatcher message, Federal Reserve Chairman Powell: There will be decisions and clarity in the coming months and throughout this year, and we will adjust policies as needed.

ChainCatcher message, Federal Reserve Chairman Powell: If inflation subsides on its own, there should be no tightening of monetary policy.

ChainCatcher news, Federal Reserve Chairman Powell mentioned the issue of "tariffs" for the first time at a press conference. When asked about the revision of inflation forecasts and how much tariffs impact those forecasts, he stated that it is difficult to analyze how much inflation is driven by tariff policies, but they will work to clarify: "It is clear that a significant portion comes from tariffs."In addition, Powell noted that the policies introduced by the new Trump administration will affect the economy, but he will cautiously avoid making overly definitive judgments about this impact. Analysts pointed out that this might be an attempt on his part, as he stated he would closely monitor monthly data to sidestep external expectations about how all of this will develop.

ChainCatcher message, Federal Reserve Chairman Powell stated at a press conference that the U.S. economy is strong, and slowing the pace of quantitative tightening (QT) is a "technical" decision.Powell mentioned that he is currently assessing economic data, and although recent figures show a slowdown in consumer spending and increased uncertainty for households, he added that this is occurring on the basis of rapid growth in recent years. Powell also stated that the labor market remains solid.

ChainCatcher message, Federal Reserve Chairman Powell: We have already seen some signs of increased tightening in the money markets.

ChainCatcher news, Federal Reserve Chairman Powell: It remains to be seen how uncertainty will affect the economic outlook.

ChainCatcher message, Federal Reserve Chairman Powell: The Federal Reserve has made a technical decision to slow down the pace of balance sheet reduction.

ChainCatcher news, according to Jinshi reports, Federal Reserve Chairman Powell faces a tricky task this week, needing to assure investors that the economic fundamentals remain solid while also conveying that policymakers are ready to intervene if necessary during Thursday's interest rate decision. As Powell praises the resilience of the U.S. economy, it coincides with Trump rapidly escalating the trade war, causing unease and leading to a significant decline in U.S. stocks over the past month. With growing concerns about the economic outlook, consumer confidence is declining, and bond yields are also falling. Dominic Konstam, head of U.S. macro strategy at Mizuho Securities, stated, "Powell needs to send some signal that they are paying attention to the stock market. Officials cannot ignore the recent declines."Economists widely expect the Federal Reserve to cut rates twice this year. Some investors warn that if officials continue to signal only two rate cuts by 2025, it becomes even more necessary for the Fed chairman to emphasize that the Fed is willing to adjust borrowing costs if there are issues in the labor market. James Ace, a portfolio manager at Marlborough Investment Management, said, "The Fed may marginally improve or worsen the situation. But clearly, they cannot fully reassure the market, as the blow to market sentiment mainly comes from the White House." Aside from issuing escalating and changing tariff threats to trading partners, the Trump administration has not taken many measures to mitigate the risk of economic recession.

ChainCatcher news reports that on social media, on-chain data analyst Murphy published statistics stating that the cost basis for ETH accumulated from January to February 2025 is roughly between $3,200 and $3,500. A cluster of addresses has been intensively accumulating at $3,475, totaling 1.66 million ETH. This group did not sell during the drop of ETH to $1,900 and instead added to their positions, currently holding 1.94 million ETH with a reduced cost basis of $3,150.Additionally, the cost basis for the chips accumulated in mid-February 2025 is approximately between $2,600 and $2,800. This group started to cut losses as the ETH price fell below $2,300, and currently, only the chips at $2,800 and $2,630 remain unchanged, holding 1 million and 850,000 ETH respectively.As the price of the coin continues to decline, new demand for ETH has gradually weakened, especially after the price fell below $2,000, where data shows there is almost no new purchasing power.Murphy explains that the high-position trapped chips, after a series of self-rescue replenishments, now seem to have exhausted their purchasing power; the current price of $1,850 is the cost price for large holders who accumulated two years ago. When the price drops to this level, they start to replenish (buying back parts sold at high positions to average down costs), thus forming a support effect. If this price level cannot provide support, the decline may reach $1,600 and $1,250, which are the "remaining support levels from three years ago's accumulation."From the overall behavior of current investors, the most important factor is still the reconstruction of consensus on ETH's value. If an effective consensus cannot be formed, the currently trapped chips at high positions of $2,630 (850,000), $2,800 (1 million), and $3,150 (1.945 million) will all become significant obstacles on the path to recovery.

ChainCatcher news, the British Columbia Court of Appeal upheld the provincial government's decision to limit electricity use for Bitcoin mining operations, rejecting the attempts by Bitcoin mining hosting provider Conifex Timber to secure unlimited electricity usage. The court supported BC Hydro, emphasizing its priority to protect public interest, safeguard the province's power supply, and prevent consumer electricity rate increases. Due to concerns about the impact of crypto mining on energy consumption, several provinces in Canada have implemented restrictions.

ChainCatcher news, Sci-Hub announced the establishment of a platform based on user requests and sharing of scientific literature, developed by Sci-Hub founder Alexandra Elbakyan, empowering the $SCIHUB token. It has a built-in verification mechanism to ensure content quality and allows verified literature to be freely accessible to everyone—no paywalls, only open access. The operation works as follows:Request literature: Enter the DOI, and Sci-Net will automatically search Sci-Hub and open preprint platforms (such as arXiv). If not found, the request will be posted on the homepage;Upload literature: Anyone can upload PDFs in response to requests;Verification and access: Once the literature is verified, everyone can access it for free.$SCIHUB is the native token of Sci-Net, used for incentivizing the sharing reward system:You can attach $SCIHUB as a reward when requesting literature.You can earn $SCIHUB by uploading literature and having it verified.

ChainCatcher message, AdsPower officially stated on social media that its security team transparently disclosed an intrusion incident on January 24. Hackers spread malicious code, tampering with some third-party cryptocurrency wallet plugins in the AdsPower fingerprint browser. AdsPower has fixed the vulnerabilities and strengthened system security, while also reporting to the authorities in Singapore and actively cooperating with the police investigation.Internal investigations show that the attackers exploited vulnerabilities in third-party technology service systems to upload and spread a malicious version of the MetaMask plugin, which may have led to the leakage of cached information from users' wallet plugins. Currently, AdsPower has upgraded the plugin download mode in the application center and will further enhance network security, emergency response, and supply chain security management in the future. Affected users can receive exclusive value-added service plans in the AdsPower client.