According to ChainCatcher's message, on-chain analyst Yu Jin monitored that in the past hour, F2Pool co-founder and stakefish founder @satofishi withdrew 9,480 ETH (23.13 million USD) from Binance, and then deposited 6,400 ETH into Ethereum staking through StakeFish. He currently holds 128,000 ETH (312.89 million USD) through two addresses.

ChainCatcher news, according to monitoring data from Arkham, approximately 4 minutes ago, 8006 ETH was transferred from F2Pool to the suspected F2Pool co-founder Chun Wang's marked address Chun Wang (F2 Pool / Stakefish): few.com, worth about 21.25 million USD.

ChainCatcher news, according to on-chain analyst Yu Jin's monitoring, 1 hour ago, Wang Chun, co-founder of F2Pool and founder of stakefish, withdrew 5,087.8 ETH (approximately 12.04 million USD) from Binance, and then deposited 3,200 ETH into Ethereum staking through StakeFish. The total amount of ETH staked at that address has reached 83,951 ETH (approximately 199 million USD).

ChainCatcher news, F2pool co-founder Wang Chun posted on X expressing that he has been looking forward to participating in SpaceX's crewed polar flight mission for two and a half years. The proposal, planning, trajectory design, and crew selection for this mission have all been completed by the client.This trip is a space tourism mission, but it is different from any previous space tourists. In the history of space exploration, this is the first time that a private individual can rent an entire spacecraft to plan, design, and execute a highly personalized mission with a clear objective.Previously, American aerospace company SpaceX announced on Monday that it will carry out the first human-crewed polar flight mission around the Earth by the end of this year. This private spaceflight mission is led by cryptocurrency entrepreneur Wang Chun, with three other members including a polar explorer, a robotics expert, and a filmmaker.The Fram2 mission lasts 3-5 days, and members will observe the Earth's poles through a dome at an inclination of 90 degrees and an altitude of 425 to 450 kilometers in a near-polar orbit, studying auroras and physical phenomena in polar regions, and will capture the first human X-ray image in space.

ChainCatcher news, the F2Pool Twitter post states that with a BTC price of $54,000, ASIC miners with a power consumption of 23 W/T or higher will be in a loss situation at an electricity price of $0.07 per kWh.

ChainCatcher message, this week Bitcoin's difficulty decreased by 5% to 79.5T, marking the largest drop since the difficulty briefly fell below 80T in March. F2pool analysis suggests that only when the Bitcoin price is at $54,000 or above, ASIC miners with a power consumption of 26W/T or lower can be profitable, with an estimated profit of $0.07 per kilowatt-hour. It is important to note that electricity prices vary by region.

ChainCatcher news, according to The Block, F2Pool data shows that after BTC fell below $55,000, only 5 Bitcoin miners remained profitable, namely Antminer S21 Hydro, Antminer S21, Avalon A1466I, Antminer S19 XP Hydro, and Antminer S19 XP, with breakeven Bitcoin prices of $39,581, $43,292, $48,240, $51,456, and $53,187 respectively.

ChainCatcher message, according to f2pool data, the Bitcoin trading price has fallen below $58,000, causing inefficient mining machines to face challenges under the current market conditions. Based on an electricity cost of $0.08 per kWh, ASIC miners with an efficiency of less than 23 W/T are already in a loss state.

ChainCatcher message, according to Whale Alert monitoring, the F2Pool wallet address transferred 9,654 ETH around 22:49 today, worth approximately $32,901,781. The funds have been transferred to a new address starting with 0xd007.

ChainCatcher news, according to CoinDesk, the outflow of funds from Bitcoin miners has reached its highest point in years, with tens of thousands of Bitcoins, worth over $1 billion, being sent to trading platforms.CryptoQuant analyst Bradley Park stated that most of the Bitcoins are being transferred from the mining pool company F2Pool, a move prompted by the increasing costs faced by miners. Park pointed out that the rising costs for F2Pool to move to Kazakhstan, along with the need to upgrade miners to Bitmain's latest Antminer T21 before the halving, have led to a decrease in mining rewards, thereby reducing the output per machine, which is the reason for the outflow of funds. F2Pool's hash rate has already begun to increase, indicating that they have started upgrading their capacity.Historically, the outflow of funds from miners to trading platforms can be a bearish signal for Bitcoin prices, as it typically occurs before price declines, but this is not always the case, and the correlation is not absolute.

ChainCatcher news, according to Lookonchain monitoring, in the past 7 hours, F2Pool deposited 1000 BTC to Binance, approximately 43.38 million USD. In addition, F2Pool also deposited 1000 BTC to Binance two days ago.

ChainCatcher news, Bitcoin mining pool F2Pool has acknowledged filtering transactions from Bitcoin addresses marked by the Office of Foreign Assets Control (OFAC). After Bitcoin developer @0xB10C discovered this situation, F2Pool co-founder Wang Chun admitted that his mining pool is indeed using this filter.In addition, Wang Chun explained in a post about why the filter is used that he has the right not to confirm certain transactions and must design an "anti-censorship system" to resist censorship from the protocol design level, rather than relying on each participant to decide not to censor. He explained that Bitcoin should learn from the experiences of the internet in this regard. However, after this statement was questioned by the community, Wang Chun announced that he would temporarily stop filtering these transactions until the community reaches a new consensus.According to previous reports from ChainCatcher, Bitcoin developer 0xB10C stated that six transactions from OFAC-sanctioned addresses were recently detected as not being mined by certain mining pools, which may indicate that these transactions were intentionally filtered.

ChainCatcher message, Bitcoin developer 0xB10C posted that six Bitcoin transactions from OFAC-sanctioned addresses were recently detected as not being mined by some mining pools, which may indicate that these transactions were intentionally filtered. In September and October 2023, the tool found missing OFAC-sanctioned transactions in six blocks mined by ViaBTC, Foundry USA pool, and F2Pool. After investigation, 0xB10C believes that the missing transactions in ViaBTC and Foundry USA pools may be false positives rather than due to filtering.However, the missing transactions in four blocks from F2Pool are likely to have been intentionally filtered. These transactions are all large transactions that consolidate multiple inputs into a single output, with at least one input coming from an OFAC-sanctioned address.

ChainCatcher news, Mempool stated on social media that F2Pool has refunded the overpaid fee of 19.82108632 BTC to Paxos.Previously, stablecoin issuer Paxos acknowledged in a statement on September 13 that the account which paid nearly 20 BTC in fees in a single transaction on September 11 belonged to Paxos.

ChainCatcher news, F2Pool co-founder Wang Chun stated regarding "Paxos claiming nearly 20 BTC in fees" that due to time zone differences, the claim was actually made after the initially announced deadline.Wang Chun said: "I am very annoyed and regret agreeing to return those 20 BTC. Especially when I see the claimant consistently referring to EST instead of EDT/UTC time. Last time someone from Zcash did this, I banned his entire company."Wang Chun has initiated a poll to gather community opinions on this matter. As of the time of publication, among 1,947 voters, 36.8% believe the fees should be allocated to miners, 27.3% think they should be returned to Paxos, 21.3% voted to freeze this portion of BTC, while the remaining voters support splitting it between miners and Paxos.Previously, regarding "a Bitcoin transaction fee of 19.82 BTC around 1 AM on September 11," Wang Chun stated on the X platform that he would temporarily set aside these approximately 20 BTC, and if no one claims them within three days, they will be redistributed to miners.Later, stablecoin issuer Paxos acknowledged in a statement on September 13 that the account that paid nearly 20 BTC in fees in a single transaction on September 11 belonged to Paxos.

ChainCatcher news, stablecoin issuer Paxos acknowledged in a statement that the account which paid nearly 20 BTC in fees in a single transaction on the morning of September 11 belongs to the company. Paxos claims that end users were not affected and all user funds are secure.A Paxos spokesperson stated, "PayPal bears no responsibility for this, as the error was caused by Paxos itself. This transaction affected Paxos's operations, but Paxos customers and end users were not impacted, and all customer funds are secure. This was due to a flaw in a single transfer, which has now been fixed. Paxos is in contact with miners to recover the funds."It is reported that the block containing the transaction has been confirmed by Bitcoin mining pool F2Pool.Previous report, regarding a single transaction fee of 19.82 BTC on the Bitcoin chain at 1 AM today, F2 Pool co-founder Wang Chun stated on the X platform that the approximately 20 BTC will be temporarily set aside, and if no one claims it after three days, it will be redistributed to miners.

ChainCatcher news, regarding a Bitcoin on-chain transaction fee that reached 19.82 BTC at 1 AM today, F2 Pool co-founder Wang Chun stated on the X platform that approximately 20 BTC will be temporarily set aside, and if no one claims it after three days, it will be redistributed to miners.According to previous news from ChainCatcher, Casa co-founder analyzed that the abnormal transaction paying a fee of 19.82 BTC is suspected to be related to an exchange or payment company using software with vulnerabilities.

ChainCatcher news, according to DeBank data, F2Pool co-founder Wang Chun started buying a total of 24 BAYC half an hour ago, spending a total of 574.1 ETH for this bulk purchase.Previously, ChainCatcher reported that on-chain data shows that the address of "Brother Ma Ji" Huang Licheng has spent 390.68 ETH today to purchase 17 BAYC through Blur.