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According to Fields' concept, an attacker stealing 1 BTC needs to provide an additional 1 BTC from a quantum-safe wallet as collateral, and both funds will be locked for a waiting period, such as 30 days.Before quantum attacks become a reality, the original owner can create a quantum-safe "mine" that contains hidden proof of ownership. If the thief later attempts to transfer the vulnerable coins, the stolen BTC and the thief's collateral will be locked. The owner can disclose the proof during the waiting period to reclaim their BTC and receive the thief's collateral as a penalty. The thief cannot determine which addresses have traps before investing funds.

Bull Bitcoin, a Bitcoin-exclusive exchange, announced a deep integration with Payjoin, claiming to be the world's first Bitcoin exchange to offer Payjoin as a deposit and withdrawal option, introducing two new concepts: "default Payjoin" and "Payjoin transaction." Founded in 2013 by Francis Pouliot in Canada, Bull Bitcoin is the longest-operating Bitcoin-exclusive exchange globally, with its non-custodial platform allowing users in Canada, Europe, and Latin America to buy Bitcoin directly into their wallets or sell Bitcoin to bank accounts. The company also developed the free and open-source Bitcoin self-custody wallet BULL Wallet, which has been self-funded since its inception.Payjoin is an on-chain privacy protocol for Bitcoin that breaks the fundamental assumptions made by on-chain analysis companies about user behavior, such as the assumption that one of the unspent transaction outputs (UTXO) generated by a transaction is change returned to the sender. The protocol adds a layer of off-chain coordination that obscures user intent by making the amounts sent and returned ambiguous, thus protecting on-chain privacy without requiring a hard or soft fork of the Bitcoin consensus. When BULL Wallet users buy and sell Bitcoin on-chain through the built-in exchange, transactions will default to using Payjoin, helping buyers passively aggregate UTXOs in their wallets, reducing future Bitcoin miner fees while shrinking the Bitcoin UTXO set size and alleviating fee pressure for all users.Payjoin transactions are used to protect users from malicious actors attempting to glean their financial habits through on-chain analysis. Since Bitcoin transaction amounts are public, outsiders may infer personal salaries or investment strategies, and as a non-custodial exchange, Bull Bitcoin leaves an on-chain trace for every transaction. In December 2024, BULL Wallet became the world's first wallet to integrate the Payjoin V2 protocol, a project advanced in collaboration with Dan Gould and the Payjoin Dev Kit team, with all related wallet and exchange software being completely free and open-source. Users only need to download BULL Wallet, create a Bull Bitcoin exchange account, and log in through the BULL mobile app, with the rest of the process being automated.

According to Coinglass data, if Bitcoin falls below $75,000, the cumulative long liquidation intensity on mainstream CEX will reach $550 million. Conversely, if Bitcoin rises and breaks through $80,000, the cumulative short liquidation intensity on mainstream CEX will reach $1.45 billion.The liquidation chart does not show the exact number of contracts pending liquidation or the exact value of contracts being liquidated. The bars on the liquidation chart represent the significance of each liquidation cluster relative to nearby liquidation clusters, that is, the intensity. Therefore, the liquidation chart shows to what extent the underlying price reaching a certain position will be affected. Higher liquidation bars indicate that once the price reaches that level, there will be a stronger reaction due to liquidity waves.

According to Coinglass data, the total liquidation across the network in the past 24 hours has expanded to 1.018 billion USD, with long position liquidations at 913 million USD and short position liquidations at 106 million USD.The liquidation amount for Bitcoin reached 254 million USD, while the liquidation amount for Ethereum reached 160 million USD.

According to Catcher Predict monitoring, in the market prediction event "Bitcoin Price Prediction for 2026" on Polymarket, the "Yes" option in the sub-market "Below $70,000" has experienced significant fluctuations in winning probability, soaring from 35.5% an hour ago to the current 51% (a fluctuation of 15.5%). Please note the impact of related breaking news.

According to Lookonchain monitoring, Bitcoin ETFs have seen a net outflow of 14,117 BTC in the past 7 days, worth approximately 1.12 billion USD; Ethereum ETFs have experienced a net outflow of 177,044 ETH in the past 7 days, worth approximately 422.75 million USD.In terms of daily data, Bitcoin ETFs had a net inflow of 208 BTC, worth approximately 16.56 million USD; Ethereum ETFs had a net inflow of 16,825 ETH, worth approximately 40.18 million USD.

21shares released a digital asset allocation analysis report, analyzing the allocation value of Bitcoin, Ethereum, and Solana in traditional investment portfolios. Data shows that from October 2023 to September 2026, the three-year correlation of Bitcoin with U.S. stocks, real estate, and gold is 38%, 11%, and 4% respectively, lower than the correlations among various traditional assets, reflecting a certain value of portfolio diversification.In addition, Bitcoin's volatility has decreased, with an annualized volatility of 44% for the 12 months prior to September 30, 2026, lower than Tesla's 46% and Palantir's 59%. In terms of portfolio allocation, 21shares conducted backtesting on data from October 2023 to September 2026 and found that allocating 2% to 5% of digital assets in a traditional 60/40 stock-bond portfolio helps improve risk-adjusted returns. Bitcoin, Ethereum, and Solana play different roles in the portfolio, focusing respectively on alternative asset allocation, technology growth assets, and high-risk growth allocations.

According to The Block, Keel Infrastructure (formerly the mining company Bitfarms) announced its third-quarter results for the period ending September 30, 2026. The company sold 2,520 bitcoins during the quarter, including approximately 2,261 from previous inventory and 259 mined during the quarter, raising approximately $192 million, with the bitcoin holdings at the end of the quarter being negligible.The revenue from continuing operations for the quarter was approximately $28 million, down from about $68 million year-on-year, primarily due to the intentional halt of bitcoin mining operations in the United States since the second quarter to advance high-performance computing and AI development, as well as a decline in the average bitcoin price.In terms of operations, Keel stated that it obtained all necessary permits and began construction in Moses Lake in September, expecting it to be the first site to be powered and generate HPC revenue in 2027. Permits for Sharon and Panther Creek are progressing, and lease negotiations for three nearby sites are ongoing.As of November 4, the company had approximately $780 million in unrestricted cash liquidity, with no additional debt or equity financing needs before signing leases. The net loss from continuing operations was approximately $62.39 million, with adjusted EBITDA being negative at about $27.45 million.

According to Catcher Predict monitoring, in the prediction market Polymarket for the event "Bitcoin breaks on November 5," the sub-market "80,000" option "Yes" has experienced drastic fluctuations in winning probability, plummeting from 64.8% an hour ago to the current 38.85% (a fluctuation of 25.95%). Please note the impact of related breaking news.

Bitcoin News posted on platform X that Strategy purchased 811 BTC in the last week of October, costing approximately 65.5 million USD, increasing its holdings to 849,327 BTC, valued at about 6.59 billion USD.Arkham data shows that as of November 3, its unrealized profit is approximately 919 million USD; for every 1,000 USD change in Bitcoin price, the holding's paper result changes by about 850 million USD.

Bitcoin Treasuries posted on platform X that the Bitcoin mining company American Bitcoin Corp., supported by the Trump family, increased its holdings by 127 BTC, bringing the total holdings to 8427 BTC.

Bitcoin Treasuries posted on platform X that the funds raised by Stretch (STRC) yesterday are estimated to be enough to purchase over 120 Bitcoins. After more than 170 days, the Bitcoin issuance of STRC has resumed.

CryptoQuant analyst Darkfost pointed out that, calculated over a 90-day rolling window, the cumulative Z-score of the correlation between Bitcoin returns and S&P 500 returns has risen above zero for the first time since 2015, reaching 98.5. A score above 0 indicates that the correlation of Bitcoin is higher than usual, while a score below 0 indicates lower correlation. The cumulative Z-score summarizes deviations to present trends. Darkfost noted that this trend has been clearly upward since the low point, and this breakthrough is symbolic, as Bitcoin is increasingly moving in tandem with the stock market.Darkfost also pointed out that the recent momentum of this correlation is slowing down. The rate of change in the short-term 90-day correlation has fallen from recent highs to 6.3%. The correlation between the two remains above average, but it is no longer strengthening as rapidly as before. He believes this is mainly due to market maturation, as more financial professionals are increasingly using Bitcoin as a conventional financial tool with the improvement of ETFs and trading channels.

The founder of CryptoBoost stated that the current bear market for BTC began on October 6, 2025, at a historical high, and has lasted for 396 days as of the time of the statement, slightly exceeding the average of 391 days required for bear markets to bottom out since 2014. In terms of historical drawdown, the maximum decline during the 2014 bear market was about 86%, approximately 84% in 2018, and about 77% in 2022, while the current drawdown is around 53%, relatively mild.He mentioned that with the increase in institutional participants such as spot ETFs, enterprises, and funds, the market's position structure may become more stable, thereby reducing the extent of declines. BTC whales have been continuously accumulating since July. However, reaching the historical average duration does not mean the bear market has ended; BTC still needs to regain and maintain above the range of $80,000 to $82,000 to further confirm market trends. He also noted recent market changes, including the decline in U.S. tech stocks and the semiconductor sector, the shift of funds towards bank stocks, as well as the rise of the Dow Jones and the drop in oil prices after the U.S. midterm elections, suggesting that the current flow of funds on Wall Street is unclear, and BTC may be at the tail end of the bear market cycle.

Glassnode stated that despite the pullback of BTC in the past few weeks, market trading volume remains above the low levels seen in August of this year. Prior to the price surge in August, BTC trading volume had dropped to its lowest level since 2023.The current trading volume performance indicates that after months of market stagnation, investor interest in the cryptocurrency market is still ongoing.

According to Rootdata, yesterday (Eastern Time November 4), the total net inflow of Bitcoin spot ETFs was $74.6 million.The Bitcoin spot ETF with the highest single-day net inflow that day was Fidelity ETF FBTC, with a net inflow of $237 million. As of that trading day, FBTC's historical cumulative net inflow was $10.428 billion.Following that was ARK 21Shares ETF ARKB, with a single-day net inflow of $19.9 million.

On-chain data analysis platform CryptoQuant certified analyst CryptoZeno stated that the current market structure of Bitcoin shows that the cycle heat is cooling down, but there are no extreme signals commonly seen near significant historical turning points. The 30-day moving average of the Bitcoin Cycle Extremum Index has dropped to 15.8%, which is in the observation or mild pressure range.Currently, the BTC price has retraced about 46% from its previous historical high, but the index remains far below the levels that represent active or extreme phases. The Cycle Extremum Oscillation Indicator is also showing cautious signals, with its 30-day moving average close to the historical range bottom and significantly below the 1.0 threshold. In previous active market phases in early 2021 and during multiple periods from 2024 to 2025, this indicator had significantly increased, but no similar changes have been observed so far. CryptoZeno indicated that BTC is currently closer to an adjustment and low activity phase rather than a confirmed cycle bottom, and the low indicator readings do not mean that selling pressure has been exhausted. There may still be continued consolidation or even a new round of declines, and attention should be paid to whether the Cycle Extremum Index can continue to rise back to the active phase, as well as whether the oscillation indicator can recover simultaneously.

According to Lookonchain monitoring, Bitcoin mining company MARA Holdings transferred 1,650 BTC, worth approximately $132.8 million, to Galaxy Digital, Copper, and other platforms in the past 12 hours.