Bitcoin

Bitcoin breaks below $73,000 to lowest since November 2024 as heavy selling resumes  CNBCBitcoin Drops to Lowest Price Since Trump’s Election Victory  Bloomberg.comBitcoin Hits 10-Month Low. Ether Falls as Trump Warsh Fed Pick Tanks Cryptos.  Barron'sBitcoin: Finally The Crash Is Here  Forbes3 reasons a strategist thinks bitcoin could plunge to $40,000 as crypto winter drags on for months to come  Business Insider

Bitcoin breaks below $73,000 to lowest since November 2024 as heavy selling resumes  CNBCBitcoin Drops to Lowest Price Since Trump’s Election Victory  Bloomberg.comBitcoin Hits 10-Month Low. Ether Falls as Trump Warsh Fed Pick Tanks Cryptos.  Barron'sBitcoin: Finally The Crash Is Here  Forbes3 reasons a strategist thinks bitcoin could plunge to $40,000 as crypto winter drags on for months to come  Business Insider

arXiv:2602.00037v1 Announce Type: new Abstract: In this work, we propose to apply a new model fusion and learning paradigm, known as Combinatorial Fusion Analysis (CFA), to the field of Bitcoin price prediction. Price prediction of financial product has always been a big topic in finance, as the successful prediction of the price can yield significant profit. Every machine learning model has its own strength and weakness, which hinders progress toward robustness. CFA has been used to enhance models by leveraging rank-score characteristic (RSC) function and cognitive diversity in the combination of a moderate set of diverse and relatively well-performed models. Our method utilizes both score and rank combinations as well as other weighted combination techniques. Key metrics such as RMSE and MAPE are used to evaluate our methodology performance. Our proposal presents a notable MAPE performance of 0.19\%. The proposed method greatly improves upon individual model performance, as well as

arXiv:2602.00037v1 Announce Type: cross Abstract: In this work, we propose to apply a new model fusion and learning paradigm, known as Combinatorial Fusion Analysis (CFA), to the field of Bitcoin price prediction. Price prediction of financial product has always been a big topic in finance, as the successful prediction of the price can yield significant profit. Every machine learning model has its own strength and weakness, which hinders progress toward robustness. CFA has been used to enhance models by leveraging rank-score characteristic (RSC) function and cognitive diversity in the combination of a moderate set of diverse and relatively well-performed models. Our method utilizes both score and rank combinations as well as other weighted combination techniques. Key metrics such as RMSE and MAPE are used to evaluate our methodology performance. Our proposal presents a notable MAPE performance of 0.19\%. The proposed method greatly improves upon individual model performance, as well

LONDON — Bitcoin dipped below $75,000 on Monday, returning to levels seen before US President Donald Trump's re-election, as investors pulled back from risky assets and US cryptocurrency legislation stalls. Digital currencies had soared after Trump was elected in November 2024, as he was widely viewed as a strong supporter of the sector. One month later, bitcoin — the world's largest cryptocurrency — crossed the $100,000 mark for the first time, a milestone Trump publicly celebrated. Bitcoin suffered a sharp setback in April, falling below $75,000 after the announcement of sweeping US tariffs rattled global markets. The volatile asset later resumed its rise, reaching a record high of $126,251.31 in October, before undergoing another pullback. The latest downturn is largely driven by ongoing regulatory uncertainty. While Congress passed a law in July to regulate stablecoins — a form of cryptocurrency backed by traditional assets — a broader crypto bill, the Clarity Act, has stalled in

Stock futures fall after silver, bitcoin sell off; questions loom over AI trade: Live updates  CNBCWall St futures drop amid AI concerns; key tech earnings, jobs report loom  Investing.comStock Futures Are Falling Along With Oil. Gold, Silver Drift Higher.  Barron'sU.S. stock futures fall after bitcoin’s weekend drop, as gold and silver’s sell-off may be bleeding into other markets  MarketWatchDow Jones Futures Fall, Bitcoin Dives To Lowest Since 2024; Google, AMD, Amazon, Palantir Due  Investor's Business Daily

Stock futures fall after silver, bitcoin sell off; questions loom over AI trade: Live updates  CNBCWall St futures drop amid AI concerns; key tech earnings, jobs report loom  Investing.comStock Futures Are Falling Along With Oil. Gold, Silver Drift Higher.  Barron'sU.S. stock futures fall after bitcoin’s weekend drop, as gold and silver’s sell-off may be bleeding into other markets  MarketWatchDow Jones Futures Fall, Bitcoin Dives To Lowest Since 2024; Google, AMD, Amazon, Palantir Due  Investor's Business Daily

Stock futures fall after silver, bitcoin sell off; questions loom over AI trade: Live updates  CNBCStock Futures Are Falling Along With Oil. Gold, Silver Drift Higher.  Barron'sDollar Firms, Stocks Look Weaker as Sentiment Ebbs: Markets Wrap  BloombergStocks Settle Lower on Weakness in Chip Stocks and Miners  NasdaqU.S. stock futures fall, along with bitcoin and oil prices  MarketWatch

Stock futures fall after silver, bitcoin sell off; questions loom over AI trade: Live updates  CNBCStock Futures Are Falling Along With Oil. Gold, Silver Drift Higher.  Barron'sDollar Firms, Stocks Look Weaker as Sentiment Ebbs: Markets Wrap  BloombergStocks Settle Lower on Weakness in Chip Stocks and Miners  NasdaqU.S. stock futures fall, along with bitcoin and oil prices  MarketWatch

Bitcoin price slides to lowest level since 2025 tariff shock  Financial TimesBitcoin’s break below $80,000 signals new crisis of confidence  Yahoo FinanceBitcoin's 'hopium' for bulls may be over and this weekend's slide could be just the beginning  CoinDeskBitcoin Drops Below $78,000 After Trump Taps Kevin Warsh To Lead Federal Reserve  ForbesBitcoin slips below $80K amid crypto selloff (BTC-USD)  Seeking Alpha

Bitcoin price slides to lowest level since 2025 tariff shock  Financial TimesBitcoin’s break below $80,000 signals new crisis of confidence  Yahoo FinanceBitcoin's 'hopium' for bulls may be over and this weekend's slide could be just the beginning  CoinDeskBitcoin Drops Below $78,000 After Trump Taps Kevin Warsh To Lead Federal Reserve  ForbesBitcoin slips below $80K amid crypto selloff (BTC-USD)  Seeking Alpha

The world’s largest cryptocurrency slipped below $76 000 in thin weekend trading, dropping about 40% from its 2025 peak.

Криптовалюта Bitcoin продолжила падение на мировых рынках. Стоимость упала ниже 80 тысяч, впервые с апреля прошлого года.

Криптовалюта Bitcoin продолжила падение на мировых рынках. Стоимость упала ниже 80 тысяч, впервые с апреля прошлого года.

На крипторынке «черная суббота»: по данным Coinmarketcap, за сутки капитализация рынка упала на 8,18% — до 2,62 триллиона долларов. При этом некоторые криптовалюты упали очень сильно, и в их числе Ethereum — минус 13%. Теперь 1 ETH стоит менее 2400 долларов. Изображение сгенерировано ChatGPT Скриншот сайта Coinmarketcap Из топ-10 также серьезно упали в цене Solana (-14%, чуть больше 100 долларов), Dogecoin (-13%, 0,1 доллара), Cardano (минус почти 13%, 0,28 доллара). На этом фоне Bitcoin «держится»: стоимость главной криптовалюты мира за сутки упала на 7,3% — до 77 600 долларов. В то же время падение за неделю куда серьезнее: тот же Bitcoin потерял 13%, Ethereum — почти

Ilya Lichtenstein spent nearly four years behind bars for orchestrating one of the largest cryptocurrency heists in history.

BitGo’s stock leaps out of the gate, as IPO investors are undeterred by bitcoin’s selloff  MarketWatchBitGo debuts with $2.59 billion valuation as crypto IPO window reopens  Yahoo FinanceBitGo Is Said to Price US IPO at $18 Per Share, Above Range  Bloomberg.comCrypto firm BitGo raises $212.8 million in US IPO  ReutersBitGo valued at $2B in U.S. IPO  Axios

BitGo’s stock leaps out of the gate, as IPO investors are undeterred by bitcoin’s selloff  MarketWatchBitGo debuts with $2.59 billion valuation as crypto IPO window reopens  Yahoo FinanceBitGo Is Said to Price US IPO at $18 Per Share, Above Range  Bloomberg.comCrypto firm BitGo raises $212.8 million in US IPO  ReutersBitGo valued at $2B in U.S. IPO  Axios

Bitcoin, XRP Prices Fall After Crypto Bill Delay. Here’s What Happens Next.  Barron'sSenators vow to revive crypto bill  PoliticoScott Statement on Market Structure Markup  Senate Committee on Banking, Housing, and Urban Affairs (.gov)Coinbase and the Crypto Revolt Against a Crypto Bill  The New York TimesCoinbase CEO says key crypto vote can be rescheduled after 11th hour cancellation  CNBC

Bitcoin, XRP Prices Fall After Crypto Bill Delay. Here’s What Happens Next.  Barron'sSenators vow to revive crypto bill  PoliticoScott Statement on Market Structure Markup  Senate Committee on Banking, Housing, and Urban Affairs (.gov)Coinbase and the Crypto Revolt Against a Crypto Bill  The New York TimesCoinbase CEO says key crypto vote can be rescheduled after 11th hour cancellation  CNBC

Michael Saylor’s financial alchemy thrust an ordinary software company, Strategy, into the center of the crypto frenzy. It all worked spectacularly, until now.

arXiv:2601.09748v1 Announce Type: new Abstract: This paper documents the installation, configuration, and operation of a full Bitcoin node in a Linux environment, from manual compilation of the source code to complete synchronization with the network. The technical phases of the process are described, the main files generated by Bitcoin Core are analyzed, and the effects of the parameters txindex, prune, dbcache, maxmempool, and maxconnections are empirically studied. System resources during the block download (IBD) mechanism are also documented, and the operational importance of each resource is explained. This paper provides a solid foundation for future research proposals on Bitcoin node performance or for the development of blockchain data query tools.

arXiv:2601.09557v1 Announce Type: new Abstract: This paper presents SiliconHealth, a comprehensive blockchain-based healthcare infrastructure designed for resource-constrained regions, particularly sub-Saharan Africa. We demonstrate that obsolete Bitcoin mining Application-Specific Integrated Circuits (ASICs) can be repurposed to create a secure, low-cost, and energy-efficient medical records system. The proposed architecture employs a four-tier hierarchical network: regional hospitals using Antminer S19 Pro (90+ TH/s), urban health centers with Antminer S9 (14 TH/s), rural clinics equipped with Lucky Miner LV06 (500 GH/s, 13W), and mobile health points with portable ASIC devices. We introduce the Deterministic Hardware Fingerprinting (DHF) paradigm, which repurposes SHA-256 mining ASICs as cryptographic proof generators, achieving 100% verification rate across 23 test proofs during 300-second validation sessions. The system incorporates Reed-Solomon LSB watermarking for medical image

arXiv:2601.09090v1 Announce Type: new Abstract: Proof of work blockchain protocols using multiple hash types are considered. It is proven that the security region of such a protocol cannot be the AND of a 51\% attack on all the hash types. Nevertheless, a protocol called Merged Bitcoin is introduced, which is the Bitcoin protocol where links between blocks can be formed using multiple different hash types. Closed form bounds on its security region in the $\Delta$-bounded delay network model are proven, and these bounds are compared to simulation results. This protocol is proven to maximize cost of attack in the linear cost-per-hash model. A difficulty adjustment method is introduced, and it is argued that this can partly remedy asymmetric advantages an adversary may gain in hashing power for some hash types, including from algorithmic advances, quantum attacks like Grover's algorithm, or hardware backdoor attacks.

arXiv:2601.09082v1 Announce Type: new Abstract: A proof of the security of the Bitcoin protocol is made rigorous, and simplified in certain parts. A computational model in which an adversary can delay transmission of blocks by time $\Delta$ is considered. The protocol is generalized to allow blocks of different scores and a proof within this more general model is presented. An approach used in a previous paper that used random walk theory is shown through a counterexample to be incorrect; an approach involving a punctured block arrival process is shown to remedy this error. Thus, it is proven that with probability one, the Bitcoin protocol will have infinitely many honest blocks so long as the fully-delayed honest mining rate exceeds the adversary mining rate.

My money took a beating when Bitcoin crashed, burned, and gained. Do I wish I'd sold, or am I glad I held? Either way, it's been a wild ride.

The Steve Aoki Arena has been introduced as a competitive PvP experience. It has been built around speed,

Crypto Bill Draft Grants XRP, Solana and Dogecoin Same Legal Status as Bitcoin  DecryptBoozman delays Senate Ag crypto markup  PoliticoUS senators introduce long-awaited bill to define crypto market rules  ReutersChairman Scott Releases Bipartisan Negotiated Market Structure Bill Text  Senate Committee on Banking, Housing, and Urban Affairs (.gov)Lawmakers are preparing to try again on major crypto bill. Why it matters and what happens next  CNBC

Crypto Bill Draft Grants XRP, Solana and Dogecoin Same Legal Status as Bitcoin  DecryptBoozman delays Senate Ag crypto markup  PoliticoUS senators introduce long-awaited bill to define crypto market rules  ReutersChairman Scott Releases Bipartisan Negotiated Market Structure Bill Text  Senate Committee on Banking, Housing, and Urban Affairs (.gov)Lawmakers are preparing to try again on major crypto bill. Why it matters and what happens next  CNBC

arXiv:1811.04349v2 Announce Type: replace Abstract: We propose Lockcoin, a secure and privacy-preserving mix service for bitcoin anonymity. We introduce mix servers to provide mix service for user to prevent attackers linking the input address with output address by using blind signature shceme, multisignature scheme. Lockcoin provides anonymity, scalability, bitcoin compatibillity, theft impossibility and accountability. We have proposed a prototype of Lockcoin based on bitcoin test network, experimental results show that our solution is efficient. Lockcoin's source codes are released on github.com/Northeastern-University-Blockchain/Lockcoin.

Компания Bitcoin Depot согласилась выплатить 1,9 миллиона долларов в качестве компенсации гражданам, пострадавшим от мошеннических схем с использованием ее киосков.

Компания Bitcoin Depot согласилась выплатить 1,9 миллиона долларов в качестве компенсации гражданам, пострадавшим от мошеннических схем с использованием ее киосков.

arXiv:2601.01436v1 Announce Type: new Abstract: The rigorous security model of Bitcoin's UTXO architecture often comes at the cost of developer usability, forcing a reliance on manual stack manipulation that leads to critical financial vulnerabilities like signature malleability, unspendable states and unconstrained execution paths. Industry standards such as Miniscript provide necessary abstractions for policy verification but do not model the full imperative logic required for complex contracts, leaving gaps in state management and resource liveness. This paper introduces Bithoven, a high-level language designed to bridge the gap between expressiveness and formal safety. By integrating a strict type checker and a resource liveness analyzer with a semantic control-flow analyzer, Bithoven eliminates major categories of consensus and logic defects defined in our fault model prior to deployment. Our results indicate that this safety comes at modest cost: Bithoven compiles to Bitcoin

Так рынок криптовалют отреагировал на операцию США в Венесуэле по аресту Николаса Мадуро.

Michael Saylor’s Strategy flirts again with the danger threshold at which his company is worth less than his Bitcoin  FortuneStrategy (MSTR) Stock Is Up, What You Need To Know  Yahoo FinanceSaylor’s Strategy Faces ‘Sizable’ Fourth-Quarter Loss From Bitcoin Tumble  Bloomberg.comStrategy shares dropped nearly 50% in 2025, far outpacing bitcoin’s decline  CoinDeskIS Strategy (MSTR) In Distress? The Balance Sheet Says No  Forbes

Michael Saylor’s Strategy flirts again with the danger threshold at which his company is worth less than his Bitcoin  FortuneStrategy (MSTR) Stock Is Up, What You Need To Know  Yahoo FinanceSaylor’s Strategy Faces ‘Sizable’ Fourth-Quarter Loss From Bitcoin Tumble  Bloomberg.comStrategy shares dropped nearly 50% in 2025, far outpacing bitcoin’s decline  CoinDeskIS Strategy (MSTR) In Distress? The Balance Sheet Says No  Forbes

В современном мире цифровых финансов курс криптовалюты Bitcoin играет ключевую роль для инвесторов, трейдеров и всех, кто интересуется цифровыми активами. Курс Bitcoin отражает цену, по которой ведущая криптовалюта торгуется на международных рынках и специализированных платформах, таких как биржи криптовалют. На […] Запись Современный курс Bitcoin: объективный взгляд на данные рынка и динамику главной криптовалюты впервые появилась Мир Бизнеса.

arXiv:2512.23439v1 Announce Type: new Abstract: We introduce Bitcoin-IPC, a software stack and protocol that scales Bitcoin towards helping it become the universal Medium of Exchange (MoE) by enabling the permissionless creation of fully programmable Proof-of-Stake (PoS) Layer-2 chains, called subnets, whose stake is denominated in L1 BTC. Bitcoin-IPC subnets rely on Bitcoin L1 for the communication of critical information, settlement, and security. Our design, inspired by SWIFT messaging and embedded within Bitcoin's SegWit mechanism, enables seamless value transfer across L2 subnets, routed through Bitcoin L1. Uniquely, this mechanism reduces the virtual-byte cost per transaction (vB per tx) by up to 23x, compared to transacting natively on Bitcoin L1, effectively increasing monetary transaction throughput from 7 tps to over 160 tps, without requiring any modifications to Bitcoin L1.

arXiv:2512.22326v1 Announce Type: new Abstract: Bitcoin price forecasting is characterized by extreme volatility and non-stationarity, often defying traditional univariate time-series models over long horizons. This paper addresses a critical gap by integrating Global M2 Liquidity, aggregated from 18 major economies, as a leading exogenous variable with a 12-week lag structure. Using the TimeXer architecture, we compare a liquidity-conditioned forecasting model (TimeXer-Exog) against state-of-the-art benchmarks including LSTM, N-BEATS, PatchTST, and a standard univariate TimeXer. Experiments conducted on daily Bitcoin price data from January 2020 to August 2025 demonstrate that explicit macroeconomic conditioning significantly stabilizes long-horizon forecasts. At a 70-day forecast horizon, the proposed TimeXer-Exog model achieves a mean squared error (MSE) 1.08e8, outperforming the univariate TimeXer baseline by over 89 percent. These results highlight that conditioning deep learning

Silver Hits Record Prices in China as Bitcoin Stalls on Christmas  Yahoo FinanceSilver crosses $75 mark while gold, platinum stretch record highs  ReutersCurrent price of silver as of Wednesday, December 24, 2025  FortuneI'm Dreaming Of A Silver Christmas  Seeking AlphaSilver Mania And The Predictable Bust  Real Investment Advice

Silver Hits Record Prices in China as Bitcoin Stalls on Christmas  Yahoo FinanceSilver crosses $75 mark while gold, platinum stretch record highs  ReutersCurrent price of silver as of Wednesday, December 24, 2025  FortuneI'm Dreaming Of A Silver Christmas  Seeking AlphaSilver Mania And The Predictable Bust  Real Investment Advice

Is Bitcoin a Buy, Sell, or Hold in 2026?  The Motley Fool4chan Trader Who Nailed Bitcoin’s October All-Time High Calls $250,000 in 2026  Yahoo FinanceCountries May Shift Gold Reserves To Bitcoin: Gemini  Bitcoin MagazineBitcoin faces uncertain 2026 outlook, $250,000 by end of 2027: Galaxy Digital's Alex Thorn  CoinDeskD E X O R A(@coderbyte)'s insights  Binance

Is Bitcoin a Buy, Sell, or Hold in 2026?  The Motley Fool4chan Trader Who Nailed Bitcoin’s October All-Time High Calls $250,000 in 2026  Yahoo FinanceCountries May Shift Gold Reserves To Bitcoin: Gemini  Bitcoin MagazineBitcoin faces uncertain 2026 outlook, $250,000 by end of 2027: Galaxy Digital's Alex Thorn  CoinDeskD E X O R A(@coderbyte)'s insights  Binance

arXiv:2512.20190v1 Announce Type: new Abstract: This paper measures price differences between Hegic option quotes on Arbitrum and a model-based benchmark built on Black--Scholes model with regime-sensitive volatility estimated via a two-regime MS-AR-(GJR)-GARCH model. Using option-level feasible GLS, we find benchmark prices exceed Hegic quotes on average, especially for call options. The price spread rises with order size, strike, maturity, and estimated volatility, and falls with trading volume. By underlying, wrapped Bitcoin options show larger and more persistent spreads, while Ethereum options are closer to the benchmark. The framework offers a data-driven analysis for monitoring and calibrating on-chain option pricing logic.

arXiv:2512.20518v1 Announce Type: new Abstract: Most current assessments use ex post proxies that miss uncertainty and fail to consistently capture the rapid change in bitcoin mining. We introduce a unified, ex ante statistical model that derives expected return, downside risk, and upside potential profit from the first principles of mining: Each hash is a Bernoulli trial with a Bitcoin block difficulty-based success probability. The model yields closed-form expected revenue per hash-rate unit, risk metrics in different scenarios, and upside-profit probabilities for different fleet sizes. Empirical calibration closely matches previously reported observations, yielding a unified, faithful quantification across hardware, pools, and operating conditions. This foundation enables more reliable analysis of mining impacts and behavior.

arXiv:2512.20402v1 Announce Type: new Abstract: This paper proposes iblock, a comprehensive C++ library for Bitcoin simulation, designed for OMNeT++. iblock offers superior efficiency and scalability with respect to state-of-the-art simulators, which are typically written in high-level languages. Moreover, the possible integration with other OMNeT++ libraries allows highly detailed simulations. We measure iblock's performance against a state-of-the-art blockchain simulator, proving that it is more efficient at the same level of simulation detail. We also validate iblock by using it to simulate different scenarios such as the normal Bitcoin operation and the selfish mine attack, showing that simulation results are coherent with theoretical expectations.

arXiv:2512.16683v1 Announce Type: new Abstract: We describe the Lockchain Protocol, a lightweight Bitcoin meta-protocol that enables highly efficient transaction discovery at zero marginal block space cost, and data verification without introducing any new on-chain storage mechanism. The protocol repurposes the mandatory 4-byte nLockTime field of every Bitcoin transaction as a compact metadata header. By constraining values to an unused range of past Unix timestamps greater than or equal to 500,000,000, the field can encode a protocol signal, type, variant, and sequence identifier while remaining fully valid under Bitcoin consensus and policy rules. The primary contribution of the protocol is an efficient discovery layer. Indexers can filter candidate transactions by examining a fixed-size header field, independent of transaction payload size, and only then selectively inspect heavier data such as OP RETURN outputs or witness fields. The Lockchain Protocol applies established protocol

The U.S. gross national debt has already exceeded $38 trillion, which is the fastest accumulation of $1 trillion

arXiv:2512.12815v1 Announce Type: new Abstract: The approval of the Bitcoin Spot ETF in January 2024 marked a transformative event in cryptocurrency markets, signaling increased institutional adoption and integration into traditional finance. This study examines Bitcoin's changing relationships with traditional assets, including equities, gold, and fiat currencies, following this milestone. Using rolling correlation analysis, Chow tests, and DCC-GARCH models, we found that Bitcoin's correlation with the S\&P 500 increased significantly post-ETF approval, indicating stronger alignment with equities. Its relationship with gold stabilized near zero, while its correlation with the U.S. Dollar Index remained consistently negative, reflecting its continued independence from fiat currencies. These findings offer insights into Bitcoin's evolving role in portfolios, implications for market stability, and future research opportunities on cryptocurrency integration into traditional financial

Стоимость первых двух по капитализации криптовалют - биткойна и Ethereum ("эфириум", "эфир", ETH) - демонстрирует резкое снижение. Как передает Day.Az со ссылкой на ТАСС, об этом свидетельствуют данные площадки Binance. Биткойн снижался на 3,24% и находился на уровне $85,808 тыс. Позже биткойн замедлил снижение до $85,842 тыс. (-3,14%).

Таинственный создатель Bitcoin Сатоши Накамото (Satoshi Nakamoto) «исчез» ровно 15 лет назад. 13 декабря 2010 года его учётная запись в последний раз была активна в Сети.  Человек, изменивший мир, ушёл, оставив одно единственное сообщение.  Я переключился на другие дела  Создано Gemini Это может указывать на то, что Накамото действительно просто решил перестать хоть как-то публично взаимодействовать с Bitcoin и сообществом и заняться чем-то другим. Впрочем, это справедливо лишь для оригинальной учётной записи, ведь не факт, что у создателя Bitcoin нет других.  До сих пор неизвестно, кто скрывался за этой учётной записью. Был ли это один конкретный человек или группа лиц — об этом можно лишь гадать. Есть немало теорий вокруг этой загадки, но ни у одной нет достаточного количества доказательств, чтобы её можно было принять, как весьма

С начала 2025 года динамика биткоина наглядно демонстрирует резкое расхождение в его стоимости при оценке в долларах США и в российских рублях

Shops, restaurants and even the local council in Lugano now accept the cryptocurrency.

arXiv:2512.07886v1 Announce Type: new Abstract: Bitcoin operates as a macroeconomic paradox: it combines a strictly predetermined, inelastic monetary issuance schedule with a stochastic, highly elastic demand for scarce block space. This paper empirically validates the Endogenous Constraint Hypothesis, positing that protocol-level throughput limits generate a non-linear negative feedback loop between network friction and base-layer monetary velocity. Using a verified Transaction Cost Index (TCI) derived from Blockchain.com on-chain data and Hansen's (2000) threshold regression, we identify a definitive structural break at the 90th percentile of friction (TCI ~ 1.63). The analysis reveals a bifurcation in network utility: while the network exhibits robust velocity growth of +15.44% during normal regimes, this collapses to +6.06% during shock regimes, yielding a statistically significant Net Utility Contraction of -9.39% (p = 0.012). Crucially, Instrumental Variable (IV) tests utilizing

arXiv:2512.07840v1 Announce Type: new Abstract: Since its inception, Bitcoin has been positioned as a revolutionary alternative to national currencies, attracting immense public and academic interest. This paper presents a critical evaluation of this claim, suggesting that Bitcoin faces significant structural barriers to qualifying as money. It synthesizes critiques from two distinct schools of economic thought - Post-Keynesianism and the Austrian School - and validates their conclusions with rigorous technical analysis. From a Post-Keynesian perspective, it is argued that Bitcoin does not function as money because it is not a debt-based IOU and fails to exhibit the essential properties required for a stable monetary asset (Vianna, 2021). Concurrently, from an Austrian viewpoint, it is shown to be inconsistent with a strict interpretation of Mises's Regression Theorem, as it lacks prior non-monetary value and has not achieved the status of the most saleable commodity (Peniaz and

arXiv:2512.05402v1 Announce Type: new Abstract: Bitcoin mining hardware acquisition requires strategic timing due to volatile markets, rapid technological obsolescence, and protocol-driven revenue cycles. Despite mining's evolution into a capital-intensive industry, there is little guidance on when to purchase new Application-Specific Integrated Circuit (ASIC) hardware, and no prior computational frameworks address this decision problem. We address this gap by formulating hardware acquisition as a time series classification task, predicting whether purchasing ASIC machines yields profitable (Return on Investment (ROI) >= 1), marginal (0

Woori Bank said Friday that it has begun displaying bitcoin prices in its main dealing room in Seoul, alongside won-dollar exchange rates and stock market data. This marks the first time a commercial bank in Korea has displayed a cryptocurrency price in its dealing room, where frontline trading of foreign exchange, bonds and derivatives takes place. "As digital assets continue to grow in prominence and influence in global financial markets, we determined that they should be monitored as a key indicator to better read overall market trends," a Woori Bank official said. Banks have recently been looking beyond the traditional boundaries of finance as they explore opportunities in the digital asset space. A prominent example is Hana Financial Group, which signed an agreement with Dunamu on Wednesday to introduce blockchain technology to services such as overseas remittances. Woori Bank, although it has yet to partner with a cryptocurrency exchange, is also signaling its intention to move

arXiv:2512.03765v1 Announce Type: new Abstract: Public companies and institutional investors that hold Bitcoin face increasing pressure to show solvency, manage risk, and satisfy regulatory expectations without exposing internal wallet structures or trading strategies. This paper introduces the Treasury Proof Ledger (TPL), a Bitcoin-anchored logging framework for multi-domain Bitcoin treasuries that treats on-chain and off-chain exposures as a conserved state machine with an explicit fee sink. A TPL instance records proof-of-reserves snapshots, proof-of-transit receipts for movements between domains, and policy metadata, and it supports restricted views based on stakeholder permissions. We define an idealised TPL model, represent Bitcoin treasuries as multi-domain exposure vectors, and give deployment-level security notions including exposure soundness, policy completeness, non-equivocation, and privacy-compatible policy views. We then outline how practical, restricted forms of these

American Bitcoin (ABTC) Nosedives 39%, Trump Blames ‘Profit-Taking’  Yahoo FinanceBitcoin sell-off halts Trump family's crypto windfall  ABC NewsThe 26-Minute, 51% Wipeout That Deepened Trumps’ Crypto Woes  BloombergEric Trump’s cryptocurrency firm tumbles nearly 40% amid ‘crypto winter’  The GuardianAmerican Bitcoin steadies after share lock-up expiry sparks near 40% plunge  Reuters

American Bitcoin (ABTC) Nosedives 39%, Trump Blames ‘Profit-Taking’  Yahoo FinanceBitcoin sell-off halts Trump family's crypto windfall  ABC NewsThe 26-Minute, 51% Wipeout That Deepened Trumps’ Crypto Woes  BloombergEric Trump’s cryptocurrency firm tumbles nearly 40% amid ‘crypto winter’  The GuardianAmerican Bitcoin steadies after share lock-up expiry sparks near 40% plunge  Reuters

Bitcoin’s Sky-High Prices Have Not Panned Out  The New York TimesBitcoin logs its worst day since March  CNBCCrypto remains on edge. That could be bad news for the stock market  CNNBehind bitcoin's big fall: Investors aren't willing to buy into the wild ride  Yahoo FinanceBreakingviews - Crypto hoarders veer from farce to tragedy  Reuters

Bitcoin’s Sky-High Prices Have Not Panned Out  The New York TimesBitcoin logs its worst day since March  CNBCCrypto remains on edge. That could be bad news for the stock market  CNNBehind bitcoin's big fall: Investors aren't willing to buy into the wild ride  Yahoo FinanceBreakingviews - Crypto hoarders veer from farce to tragedy  Reuters

Stock Market Today: Dow Futures, Bitcoin Edge Higher — Live Updates  The Wall Street JournalStock futures climb as bitcoin bounce continues: Live updates  CNBCWall Street inches higher on strong earnings with inflation report on tap  Pittsburgh Post-GazetteWall Street holds steadier as bond yields and bitcoin stabilize  AP NewsStock Market Today: Dow Rises Ahead Of Jobs Data; Clothier Soars On Earnings (Live Coverage)  Investor's Business Daily

Stock Market Today: Dow Futures, Bitcoin Edge Higher — Live Updates  The Wall Street JournalStock futures climb as bitcoin bounce continues: Live updates  CNBCWall Street inches higher on strong earnings with inflation report on tap  Pittsburgh Post-GazetteWall Street holds steadier as bond yields and bitcoin stabilize  AP NewsStock Market Today: Dow Rises Ahead Of Jobs Data; Clothier Soars On Earnings (Live Coverage)  Investor's Business Daily

Bitcoin has plunged more than 30 percent and Ether is down around 40 percent in recent months, as gains from President Trump’s pro-crypto policies evaporated.

Bitcoin has plunged more than 30 percent and Ether is down around 40 percent in recent months, as gains from President Trump’s pro-crypto policies evaporated.

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Stocks steady as slide in bitcoin, global bonds hit pause  ReutersDemand for Japanese bonds reassures jittery markets  Financial TimesAsian shares are mixed as steady bond yields, rebound for bitcoin push US stocks higher  ABC NewsEUR/JPY snaps three-day losing streak as solid JGB auction weakens the Yen  FXStreetHong Kong stocks waver on bitcoin sell-off, carry trade unravelling  South China Morning Post

Stocks steady as slide in bitcoin, global bonds hit pause  ReutersDemand for Japanese bonds reassures jittery markets  Financial TimesAsian shares are mixed as steady bond yields, rebound for bitcoin push US stocks higher  ABC NewsEUR/JPY snaps three-day losing streak as solid JGB auction weakens the Yen  FXStreetHong Kong stocks waver on bitcoin sell-off, carry trade unravelling  South China Morning Post

Stocks rise, bonds and bitcoin regain some footing  ReutersStocks steady as slide in bitcoin, global bonds hit pause  ReutersJapan’s 10-Year Bond Sale Demand Stronger Than 12-Month Average  Bloomberg.comEuro steadies, dollar rises vs yen as JGB auction brings relief  CNBCUSD/JPY forecast: Steadier JGBs help soothe nerves – for now  FOREX.com

Stocks rise, bonds and bitcoin regain some footing  ReutersStocks steady as slide in bitcoin, global bonds hit pause  ReutersJapan’s 10-Year Bond Sale Demand Stronger Than 12-Month Average  Bloomberg.comEuro steadies, dollar rises vs yen as JGB auction brings relief  CNBCUSD/JPY forecast: Steadier JGBs help soothe nerves – for now  FOREX.com

Stock Market Today: Nasdaq, Dow Gain; Bitcoin Price Rebounds — Live Updates  The Wall Street JournalStocks rebound as bitcoin bounces, tech shares gain: Live updates  CNBCNasdaq, S&P 500 edge higher as Fed rate cut bets grow, Boeing advances  ReutersWall Street holds steadier as bond yields and bitcoin stabilize  AP NewsStock market today: Dow, S&P 500, Nasdaq edge higher as Wall Street regains its footing  Yahoo Finance

Stock Market Today: Nasdaq, Dow Gain; Bitcoin Price Rebounds — Live Updates  The Wall Street JournalStocks rebound as bitcoin bounces, tech shares gain: Live updates  CNBCNasdaq, S&P 500 edge higher as Fed rate cut bets grow, Boeing advances  ReutersWall Street holds steadier as bond yields and bitcoin stabilize  AP NewsStock market today: Dow, S&P 500, Nasdaq edge higher as Wall Street regains its footing  Yahoo Finance

Operation Olympia pulls Swiss servers offline and scoops up 12TB of data in latest crime infrastructure crackdown Law enforcement agencies in Germany and Switzerland have shut down cryptocurrency laundering platform Cryptomixer in Europe's latest pushback against cybercrime infrastructure.…

Strategy CEO Hints Bitcoin Sales May Loom as Shares Sink  Bloomberg.comStrategy Announces Establishment of $1.44 Billion USD Reserve and Updates FY 2025 Guidance  StrategyBitcoin champion Strategy launches ‘dollar reserve’ amid crypto sell-off  Financial TimesMSTR Stock: Strategy Barely Bought the Bitcoin Dip and Other Reasons Shares Are Tumbling.  Barron'sStrategy, the Bitcoin-Buying Company, Raises $1.44 Billion to Weather Crypto Downturn  The Wall Street Journal

Strategy CEO Hints Bitcoin Sales May Loom as Shares Sink  Bloomberg.comStrategy Announces Establishment of $1.44 Billion USD Reserve and Updates FY 2025 Guidance  StrategyBitcoin champion Strategy launches ‘dollar reserve’ amid crypto sell-off  Financial TimesMSTR Stock: Strategy Barely Bought the Bitcoin Dip and Other Reasons Shares Are Tumbling.  Barron'sStrategy, the Bitcoin-Buying Company, Raises $1.44 Billion to Weather Crypto Downturn  The Wall Street Journal

arXiv:2512.00437v1 Announce Type: new Abstract: We construct the Bitcoin User Network (BUN) directly from raw blockchain data up to late 2025, which allows us to explore its mesoscopic properties and trace its temporal evolution. In particular, we analyze the structure of connected components and directed assortativity through the four variants of Newman's coefficient, implemented via custom algorithms and a dedicated database. Building on this, to characterize the distribution of structural influence, we introduce direction-sensitive centrality measures based on PageRank and HITS, which provide a complementary global analysis of the BUN and reveal a persistently unequal and increasingly core-periphery structure. In addition, we complement the structural analysis with a study of Bitcoin's price volatility using high-frequency market data. Overall, our results reveal a clear pattern of concentration within distribution: although the protocol is decentralized by design, the emergent

Bitcoin prices extend slide, falling below $85,000  CBS NewsBitcoin, ether fall sharply as crypto sell-off resumes  CNBCBitcoin slumps in fresh crypto sell-off  The TelegraphBitcoin Slide Resumes in a Risk-Off Start to December Trading  Yahoo FinanceCrypto remains on edge. That could be bad news for the stock market  CNN

Bitcoin prices extend slide, falling below $85,000  CBS NewsBitcoin, ether fall sharply as crypto sell-off resumes  CNBCBitcoin slumps in fresh crypto sell-off  The TelegraphBitcoin Slide Resumes in a Risk-Off Start to December Trading  Yahoo FinanceCrypto remains on edge. That could be bad news for the stock market  CNN

Stock market today: Dow, S&P 500, Nasdaq sink, bitcoin plummets in downbeat start to December  Yahoo FinanceWall Street slips as yields rise, crypto stocks tumble  ReutersStock Market Today: Dow, Nasdaq Decline; Bitcoin Trades Below $87,000 — Live Updates  The Wall Street JournalStocks fall to kick off December as bitcoin, tech stocks decline: Live updates  CNBCStocks Halt Winning Run as Bitcoin Selloff Deepens: Markets Wrap  Bloomberg.com

Stock market today: Dow, S&P 500, Nasdaq sink, bitcoin plummets in downbeat start to December  Yahoo FinanceWall Street slips as yields rise, crypto stocks tumble  ReutersStock Market Today: Dow, Nasdaq Decline; Bitcoin Trades Below $87,000 — Live Updates  The Wall Street JournalStocks fall to kick off December as bitcoin, tech stocks decline: Live updates  CNBCStocks Halt Winning Run as Bitcoin Selloff Deepens: Markets Wrap  Bloomberg.com

Stock Market Today: Dow, Nasdaq Decline; Bitcoin Trades Below $87,000 — Live Updates  The Wall Street JournalStock market today: Dow, S&P 500, Nasdaq sink, bitcoin plummets in downbeat start to December  Yahoo FinanceWall Street slips as yields rise, crypto stocks tumble  ReutersU.S. stocks dip with rate cut bets, possible Fed leadership change in focus  Investing.comStocks Halt Winning Run as Bitcoin Selloff Deepens: Markets Wrap  Bloomberg.com

Stock Market Today: Dow, Nasdaq Decline; Bitcoin Trades Below $87,000 — Live Updates  The Wall Street JournalStock market today: Dow, S&P 500, Nasdaq sink, bitcoin plummets in downbeat start to December  Yahoo FinanceWall Street slips as yields rise, crypto stocks tumble  ReutersU.S. stocks dip with rate cut bets, possible Fed leadership change in focus  Investing.comStocks Halt Winning Run as Bitcoin Selloff Deepens: Markets Wrap  Bloomberg.com

Bitcoin dips below $85,000 in crypto currency rout  AP NewsBitcoin, ether fall sharply as crypto sell-off resumes  CNBCBitcoin prices extend slide, falling below $85,000  CBS NewsBitcoin is stumbling again. Why the crypto is faltering as December kicks off.  Business InsiderBitcoin Plunges to Below $86,000 in Risk-Off Start to December  Bloomberg.com

Bitcoin dips below $85,000 in crypto currency rout  AP NewsBitcoin, ether fall sharply as crypto sell-off resumes  CNBCBitcoin prices extend slide, falling below $85,000  CBS NewsBitcoin is stumbling again. Why the crypto is faltering as December kicks off.  Business InsiderBitcoin Plunges to Below $86,000 in Risk-Off Start to December  Bloomberg.com

Bitcoin drops 5% below $90,000; bearish factors rack up  ReutersBitcoin, ethereum fall sharply as crypto sell-off resumes  CNBCWhy Bitcoin's Bear-Market Decline Is Deepening As December Kicks Off  Business InsiderBitcoin Plunges to Below $86,000 in Risk-Off Start to December  Bloomberg.comBitcoin’s Massive Drop Sparks Suspected ‘Manipulation’ Among Traders — What Actually Happened?  Yahoo Finance

Bitcoin drops 5% below $90,000; bearish factors rack up  ReutersBitcoin, ethereum fall sharply as crypto sell-off resumes  CNBCWhy Bitcoin's Bear-Market Decline Is Deepening As December Kicks Off  Business InsiderBitcoin Plunges to Below $86,000 in Risk-Off Start to December  Bloomberg.comBitcoin’s Massive Drop Sparks Suspected ‘Manipulation’ Among Traders — What Actually Happened?  Yahoo Finance

arXiv:2511.21773v1 Announce Type: new Abstract: South Korea faces the dual challenge of managing growing distributed solar energy surpluses and the high energy demand of industries like Bitcoin mining. Leveraging mining operations as a flexible load to monetize this `net-metering surplus' presents a viable synergy, but requires a robust site selection methodology. Traditional GIS-based Multi-Criteria Decision Analysis (MCDA) struggles with subjective weighting and integrating heterogeneous spatial data (areal-level and lattice-level). This thesis develops and implements a Two-Stage Hierarchical Optimization framework to overcome these limitations. Stage 1 (Areal-Level) employs a cost-benefit optimization to determine the optimal number ($K^*$) and combination of regions, maximizing a final adjusted net profit by balancing surplus power revenue against detailed land and non-linear infrastructure costs. Stage 2 (Point-Level) then uses a GIS-based sliding window search within these

arXiv:2511.22782v1 Announce Type: new Abstract: This paper examines factors that influence prices of most common five cryptocurrencies such as Bitcoin, Ethereum, Dash, Litecoin, and Monero over 2010-2018 using weekly data. The study employs ARDL technique and documents several findings. First, cryptomarket-related factors such as market beta, trading volume, and volatility appear to be significant determinant for all five cryptocurrencies both in short- and long-run. Second, attractiveness of cryptocurrencies also matters in terms of their price determination, but only in long-run. This indicates that formation (recognition) of the attractiveness of cryptocurrencies are subjected to time factor. In other words, it travels slowly within the market. Third, SP500 index seems to have weak positive long-run impact on Bitcoin, Ethereum, and Litcoin, while its sign turns to negative losing significance in short-run, except Bitcoin that generates an estimate of -0.20 at 10% significance

Bitcoin Plunges to Below $86,000 in Risk-Off Start to December  Bloomberg.comBitcoin, Ethereum fall sharply as crypto sell-off resumes  CNBCBitcoin falls 5% below $90,000 as investors ditch risk assets  ReutersBitcoin faces 3 headwinds as the cryptocurrency sits 28% below record high  Yahoo Finance2 reasons the latest bitcoin meltdown will be harder to recover from than prior crashes  Business Insider

Bitcoin Plunges to Below $86,000 in Risk-Off Start to December  Bloomberg.comBitcoin, Ethereum fall sharply as crypto sell-off resumes  CNBCBitcoin falls 5% below $90,000 as investors ditch risk assets  ReutersBitcoin faces 3 headwinds as the cryptocurrency sits 28% below record high  Yahoo Finance2 reasons the latest bitcoin meltdown will be harder to recover from than prior crashes  Business Insider

Bitcoin Braced For A Huge December Fed Game-Changer As $6.6 Trillion Flip Predicted To Trigger Price Shock  ForbesKevin Hassett says he would be ‘happy to serve’ if chosen as next Fed chair  Fox BusinessWho will replace Federal Reserve Chair Jerome Powell? A look at the 5 finalists.  Yahoo FinanceFed Contender Hassett Says Market Is Ready for Trump Chair Pick  Bloomberg.comWhat to know ahead of Trump’s 'high stakes' Fed chair nomination  USA Today

Bitcoin Braced For A Huge December Fed Game-Changer As $6.6 Trillion Flip Predicted To Trigger Price Shock  ForbesKevin Hassett says he would be ‘happy to serve’ if chosen as next Fed chair  Fox BusinessWho will replace Federal Reserve Chair Jerome Powell? A look at the 5 finalists.  Yahoo FinanceFed Contender Hassett Says Market Is Ready for Trump Chair Pick  Bloomberg.comWhat to know ahead of Trump’s 'high stakes' Fed chair nomination  USA Today

How long does it take to mine 1 bitcoin in 2025? In 2025, it will be virtually impossible

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arXiv:2511.20105v1 Announce Type: new Abstract: This study investigates the application of the Light Gradient Boosting Machine (LGBM) model for both deterministic and probabilistic forecasting of Bitcoin realized volatility. Utilizing a comprehensive set of 69 predictors -- encompassing market, behavioral, and macroeconomic indicators -- we evaluate the performance of LGBM-based models and compare them with both econometric and machine learning baselines. For probabilistic forecasting, we explore two quantile-based approaches: direct quantile regression using the pinball loss function, and a residual simulation method that transforms point forecasts into predictive distributions. To identify the main drivers of volatility, we employ gain-based and permutation feature importance techniques, consistently highlighting the significance of trading volume, lagged volatility measures, investor attention, and market capitalization. The results demonstrate that LGBM models effectively capture

Bitcoin Traders See Signs of Selloff Easing as Token Steadies  Bloomberg.comWhy the crypto market is crashing  CNNWhy Crypto’s Slide Is Rattling Wall Street  The New York TimesBitcoin faces 3 big problems as the cryptocurrency struggles to rebound amid 30% slide from record highs  Yahoo FinanceWhat to know about the crypto selloff  ABC News

Bitcoin Traders See Signs of Selloff Easing as Token Steadies  Bloomberg.comWhy the crypto market is crashing  CNNWhy Crypto’s Slide Is Rattling Wall Street  The New York TimesBitcoin faces 3 big problems as the cryptocurrency struggles to rebound amid 30% slide from record highs  Yahoo FinanceWhat to know about the crypto selloff  ABC News

2 reasons the latest bitcoin meltdown will be harder to recover from than prior crashes  Business InsiderWhy the crypto market is crashing  CNNWhy Crypto’s Slide Is Rattling Wall Street  The New York TimesBitcoin faces 3 big problems as the cryptocurrency struggles to rebound amid 30% slide from record highs  Yahoo FinanceBitcoin Traders See Signs of Selloff Easing as Token Steadies  Bloomberg.com

2 reasons the latest bitcoin meltdown will be harder to recover from than prior crashes  Business InsiderWhy the crypto market is crashing  CNNWhy Crypto’s Slide Is Rattling Wall Street  The New York TimesBitcoin faces 3 big problems as the cryptocurrency struggles to rebound amid 30% slide from record highs  Yahoo FinanceBitcoin Traders See Signs of Selloff Easing as Token Steadies  Bloomberg.com