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Preço estimado
1 BTC0,00 USD
Bitcoin
BTC
Bitcoin
$66.833,2
+0.67%
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  • 1
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  • 2
    Escolha BTC e o método de pagamentoVá para a seção “Comprar Bitcoin(BTC)”, selecione a BTC, insira o valor que deseja comprar e escolha cartão de débito como opção de pagamento. Em seguida, preencha os detalhes do seu cartão.
  • 3
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Por que comprar Bitcoin(BTC)?

O que é Bitcoin? O nascimento do ouro digital descentralizado
O Bitcoin (BTC) foi introduzido em 2008 por Satoshi Nakamoto e lançado oficialmente em 2009 como a primeira criptomoeda descentralizada do mundo. Ele permite pagamentos eletrônicos ponto a ponto sem intermediários, como bancos ou governos. Todas as transações são registradas em um blockchain público, garantindo transparência e segurança.
Como funciona o Bitcoin? Consenso PoW e tecnologia Blockchain
O Bitcoin opera em um mecanismo de consenso de Proof of Work (PoW). Quando Alice quer enviar 1 BTC para Bob, os mineradores competem para resolver problemas matemáticos complexos. O primeiro a resolvê-lo ganha novos bitcoins como recompensa em bloco e registra a transação na blockchain. Esse sistema protege a rede, mas resulta em alto consumo de energia e aumento da dificuldade de mineração.
Oferta de Bitcoin e mecanismo de redução pela metade
A oferta de Bitcoin é estritamente limitada a 21 milhões de moedas, o que o torna absolutamente escasso. A cada quatro anos, um evento de “halving” reduz a recompensa do bloco para os mineradores, retardando a criação de novos bitcoins. Isso reforça as propriedades anti-inflacionárias do Bitcoin e é um dos principais impulsionadores de sua valorização de preço a longo prazo. No final de 2024, mais de 19,7 milhões de bitcoins foram minerados.
Histórico de preços e impacto no mercado
O Bitcoin começou praticamente sem valor, alcançando $20,000 in 2017 and hitting new highs above $60,000 em 2021. Ele passou por uma volatilidade extrema, como o famoso “Bitcoin Pizza Day”, marcando seu primeiro uso comercial. Apesar de ter sido chamada de bolha ou fraude no passado, a crescente adoção convencional e institucional elevou sua capitalização de mercado para além de US$ 1 trilhão.
Razões e riscos para investir em Bitcoin
Hedge de inflação e armazenamento de valor: Oferta fixa e eventos de redução pela metade tornam o Bitcoin um ouro digital e um potencial ativo seguro. Alta liquidez: O BTC é negociado em todas as principais exchanges, permitindo uma fácil alocação de portfólio. Descentralização e Autonomia: Não é controlada por nenhuma entidade; os usuários têm controle total sobre seus ativos. Riscos regulatórios e técnicos: alta volatilidade, regulamentações pouco claras, preocupações ambientais decorrentes da mineração e serviços de pagamento limitados.
Visões céticas e perspectivas alternativas
Apesar de sua natureza revolucionária, a eficiência do Bitcoin como ferramenta de pagamento é baixa e os riscos regulatórios permanecem significativos. Alguns especialistas veem o Bitcoin mais como um ativo especulativo do que como uma reserva estável de valor. Os investidores devem avaliar cuidadosamente sua tolerância ao risco.

Bitcoin(BTC) Preço atual e tendências de mercado

BTC/USD
Bitcoin
$66.833,2
+0.67%
Mercados
Popularidade
Capitalização de Mercado
#1
$1,33T
Volume
Oferta em circulação
$316,29M
20,01M

A partir de agora, o preço de Bitcoin (BTC) está cotado em $66.833,2 por moeda. A oferta circulante é de aproximadamente 20.011.153 BTC, resultando em uma capitalização de mercado total de $20,01M, Classificação atual de capitalização de mercado: 1.

Nas últimas 24 horas, o volume de negociação em Bitcoin atingiu $316,29M, representando um +0.67% em comparação com o dia anterior. Na semana passada, Bitcoin cotou em +1.05%, refletindo a demanda contínua por BTC como ouro digital e uma proteção contra a inflação.

Além disso, o recorde histórico de Bitcoin foi $126.080. A volatilidade do mercado continua significativa, portanto, os investidores devem monitorar de perto as tendências macroeconômicas e os desenvolvimentos regulatórios.

Bitcoin(BTC) Compare com outras criptomoedas

BTC VS
BTC
Preço
Mudança percentual em 24h
Mudança percentual em 7d
Volume de negociação em 24 horas
Capitalização de Mercado
Classificação de mercado
Oferta circulante

O que fazer depois de comprar Bitcoin(BTC)?

Spot
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Últimas notícias sobre Bitcoin(BTC)

2026-04-04 02:38Tap Chi Bitcoin
赛勒号召在耶稣受难日(Good Friday)之际买入比特币,当时BTC在约67.000美元附近
2026-04-04 02:37Tap Chi Bitcoin
比特币在9分钟内被量子“破解”是什么意思?
2026-04-03 23:03Block Chain Reporter
比特币价格盘整表明在 $71,000 阻力位上方将出现大规模波动扩张
2026-04-03 22:31Cointelegraph
动荡的美国经济、私募信贷压力、战争对比特币 $75K 反弹几率的影响
2026-04-03 22:30GateNews
摩根大通:2026 年 Q1 加密资金流降至 110 亿美元,同比仅为去年三分之一
Mais notícias sobre BTC
#OilPricesRise 
#OilPricesRise — Why Oil is Surging Past $100 and Why BTC is Going Down
PART 1 — WHY OIL PRICES ARE RISING
Step 1: The Iran War and the Strait of Hormuz Blockade — The Root Cause
This is the single biggest driver of everything happening right now.
The US-Israel military conflict with Iran has triggered what experts are already calling the largest supply disruption in the history of the global oil market. Iran has effectively closed the Strait of Hormuz — a narrow waterway through which nearly one-fifth (20%) of the entire world's oil supply passes every single day.
When that chokepoint gets sealed, the math is brutal: less oil available globally, same (or growing) demand, prices shoot up. That's exactly what's happening.
Goldman Sachs noted that Iran's Hormuz blockade has had an impact 17 times larger than the peak disruption caused by the Russia-Ukraine war in April 2022, which already pushed oil to around $139/barrel at the time. Right now, Brent crude is hovering around $114/barrel, and the New York Times confirmed gas prices in the US have climbed above $4 per gallon as of late March/early April 2026.
What makes this situation exceptionally critical is not just the supply shock itself, but the speed and scale at which it has unfolded, forcing global markets to react instantly without the usual adjustment period. Energy markets operate on tight balances, and when such a large portion of supply is suddenly disrupted, pricing mechanisms react aggressively, pushing oil higher in a way that reflects fear, scarcity, and uncertainty all at once. This is not a slow-burning issue; it is a high-impact shock that is rippling across every financial and economic system simultaneously.
Step 2: OPEC Has No Magic Bullet — Surge Capacity Is Limited
When supply gets disrupted, the world usually turns to OPEC's surplus production capacity as a buffer. But that buffer has limits. The missing oil volume from the Hormuz blockade is so large that even strategic petroleum reserves (from the US, OECD nations, and China) cannot fully compensate.
As Forbes pointed out, the primary economic effect of an oil crisis works through two channels:
First-order effects: Inflation rises, consumer purchasing power falls, fuel prices jump
Second-order effects: Higher energy costs ripple through every supply chain — food, shipping, manufacturing, aviation — making everything more expensive
The deeper issue here is that the global energy system does not have enough flexibility to absorb shocks of this magnitude without consequences. Even when emergency reserves are deployed, they only provide temporary relief and cannot replace sustained daily supply flows. This creates a prolonged imbalance where elevated prices become the new normal, and those higher costs begin embedding themselves into the global economy, affecting everything from basic consumer goods to large-scale industrial operations.
Step 3: Inflation Is Being Reignited
This is where it starts to hit everyone directly. Former IMF Chief Economist Gita Gopinath warned that if oil averages $85/barrel through 2026, global inflation could jump by 60 basis points and global economic growth could be trimmed by 0.3 to 0.4 percentage points.
We're already seeing oil well above $85 at current levels. That means:
Household energy bills rising sharply
Fuel prices climbing for every driver
Central banks that were hoping to cut interest rates may now be forced to raise rates again — or at minimum, keep them elevated longer than planned
The risk of a global recession climbs materially. Economists at the Washington Times estimate WTI oil hitting $138/barrel would push recession risk to 50%
Developing and poorer nations are getting hit hardest — they literally get outbid for oil by wealthier economies, leading to fuel rationing and energy subsidies straining government budgets.
This stage represents the transition from an energy problem to a full-scale economic problem, where rising oil prices begin to squeeze both consumers and governments at the same time, reducing spending power, increasing financial stress, and forcing policymakers into difficult decisions that can slow down economic growth even further.
Step 4: This Is Being Called "The Oil Market's COVID Moment"
Axios described the current situation as the oil market's COVID moment — a structural shock, not just a temporary price spike. Just as COVID-19 forced demand destruction by getting "cars off roads, ships off seas, planes out of skies," the current supply shock is so severe that prices have to rise high enough to forcibly reduce global oil consumption.
The feedback loop is dangerous:
War disrupts supply
Prices spike
Inflation surges
Central banks tighten or hold rates
Consumer spending falls
Business confidence crumbles
Risk of recession rises
Markets sell off — including crypto
This feedback loop highlights how interconnected modern markets have become, where a single geopolitical event can cascade through multiple layers of the global economy, eventually impacting assets like crypto that are not directly tied to oil but are heavily influenced by liquidity and investor sentiment.
PART 2 — HOW THIS IS DRAGGING BTC AND CRYPTO DOWN
Step 5: The "Risk-Off" Tsunami — Investors Are Running Away From Everything Risky
When oil spikes and recession fears mount, global investors execute what Wall Street calls a "risk-off" rotation — they sell high-risk assets (equities, crypto) and move into safe havens (gold, US treasuries, cash, stable bonds).
Bitcoin is perceived as a risk-on asset by institutional investors. When macro fear rises, BTC gets sold. The data confirms this brutally:
BTC price right now: -$66,445
24h change: -1.02%
30-day change: -6.26%
90-day change: -27.41%
Down roughly 18-20% since the start of 2026
Still sitting approximately 41-44% below its all-time high near $126,000 reached in October 2025
ETH is in even worse shape on the longer timeframe:
ETH price right now: -$2,045
90-day change: -34.95%
This movement reflects a broader shift in investor psychology, where preserving capital becomes more important than seeking returns, leading to aggressive selling in volatile assets regardless of their long-term potential.
Step 6: Bitcoin Just Matched Its Worst Streak in History
CoinDesk reported that Bitcoin is on the verge of matching a joint record of six consecutive monthly losses — a streak only seen once before, between August 2018 and January 2019, during the worst crypto bear market of that era.
The first 50 days of 2026 marked the worst-ever start to a year for BTC on record. That's not just bad luck — it reflects genuine macro pressure.
This kind of prolonged weakness is rarely driven by technical factors alone; it usually indicates a deeper macro environment where liquidity is drying up and confidence is consistently being eroded over time.
Step 7: Institutional Money Is Pulling Out
This cycle is different from 2018 because institutions are now deeply involved. And when macro conditions deteriorate, institutions are the first to pull out systematically.
Bitcoin ETFs — which were the rocket fuel behind the 2024 bull run — saw nearly $4 billion in net outflows in just the first five weeks of 2026. Companies that built Bitcoin treasuries are also unwinding positions:
MARA Holdings sold 15,133 BTC for -$1.1 billion in March 2026
Genius Group liquidated its entire BTC treasury to pay off debt
Cango Inc. sold 4,451 BTC
GD Culture Group authorized sale of a portion of its 7,500 BTC treasury
The "Bitcoin treasury boom" that characterized 2024-2025 is actively unwinding. Only Michael Saylor's Strategy continues buying — but one buyer cannot absorb all that selling pressure.
This reflects a structural shift where capital that once supported the market is now being withdrawn, creating sustained downward pressure that cannot be easily reversed without a significant improvement in macro conditions.
Step 8: Quantum Computing Fear Added Fuel to the Fire
As if macro pressure wasn't enough, this week Elon Musk and Google's quantum computing developments added fresh fear. Project Eleven, a quantum risk research group, estimated that approximately 7 million BTC worth -$470 billion could be vulnerable to quantum computing attacks in the future.
Google dramatically brought forward its quantum computing timeline, triggering fresh concerns. Musk publicly warned: "You have until 2029." BlackRock also issued a separate $1 trillion crypto market warning in the same week.
This type of technological uncertainty does not immediately impact price fundamentals, but it significantly affects investor confidence, especially in already fragile conditions.
Step 9: The Oil-Crypto Connection Is Real and Direct
Here's why oil prices and crypto prices are not separate stories — they are the same story:
Inflation surges, forcing central banks to keep interest rates high, which reduces liquidity flowing into risk assets. Growth fears rise, pushing investors to sell Bitcoin and reduce exposure to volatility. Recession risks increase, leading companies to liquidate crypto holdings to maintain financial stability. Consumer confidence declines, weakening retail participation in the market. At the same time, rising energy costs directly impact Bitcoin mining, making operations more expensive and forcing miners to sell BTC to cover costs, which adds continuous selling pressure into the market.
PART 3 — WHAT COULD TURN THIS AROUND
Step 10: The Potential Reversal Catalysts
Despite all of the above, there are reasons to watch carefully rather than panic-sell at the bottom:
For Oil:
Any diplomatic breakthrough that reopens the Strait of Hormuz would trigger an immediate oil price drop
Iran already signaled "cooperation on key shipping routes" briefly on April 2nd, causing Bitcoin to trim losses and stocks to erase a 2% decline in a single session — showing how quickly things can reverse
For Bitcoin:
Historical data shows 8 out of 13 Aprils since 2013 have closed in the green for BTC, with an average April gain of 13%
BTC remains above its critical 200-week moving average at $59,268 and its realized price (average on-chain cost basis) at $54,177 — both are historically strong support levels
Some analysts believe Bitcoin is in a "time pain trap" — needing a few more months of boring, sideways or slightly down price action before finding a true floor and recovering
These factors highlight that while the current environment is heavily bearish, it is not without potential turning points, especially if macro conditions begin to stabilize.
SUMMARY — THE BIG PICTURE
Oil is rising because: A geopolitical war disrupted the world's most critical oil shipping route, causing a supply shock that is reigniting inflation, threatening global growth, and forcing a recession risk conversation that nobody wanted to have in 2026.
Crypto is falling because: Rising oil = rising inflation = higher interest rates for longer = risk-off investor behavior = institutional selling + miner selling + ETF outflows + fear compounding on top of quantum computing concerns.
The key number to watch: If Brent crude drops back below $85/barrel due to diplomatic resolution, expect a rapid reversal in both stock markets and crypto. If oil climbs toward $138/barrel, brace for deeper market pain across all asset classes.
The macro environment and geopolitics are driving everything right now, and this is one of those rare periods where external forces matter more than technical analysis. Staying informed, managing risk carefully, and understanding the bigger picture is essential for navigating this phase of the market.
Korean_Girl
2026-04-04 02:41
#OilPricesRise #OilPricesRise — Why Oil is Surging Past $100 and Why BTC is Going Down PART 1 — WHY OIL PRICES ARE RISING Step 1: The Iran War and the Strait of Hormuz Blockade — The Root Cause This is the single biggest driver of everything happening right now. The US-Israel military conflict with Iran has triggered what experts are already calling the largest supply disruption in the history of the global oil market. Iran has effectively closed the Strait of Hormuz — a narrow waterway through which nearly one-fifth (20%) of the entire world's oil supply passes every single day. When that chokepoint gets sealed, the math is brutal: less oil available globally, same (or growing) demand, prices shoot up. That's exactly what's happening. Goldman Sachs noted that Iran's Hormuz blockade has had an impact 17 times larger than the peak disruption caused by the Russia-Ukraine war in April 2022, which already pushed oil to around $139/barrel at the time. Right now, Brent crude is hovering around $114/barrel, and the New York Times confirmed gas prices in the US have climbed above $4 per gallon as of late March/early April 2026. What makes this situation exceptionally critical is not just the supply shock itself, but the speed and scale at which it has unfolded, forcing global markets to react instantly without the usual adjustment period. Energy markets operate on tight balances, and when such a large portion of supply is suddenly disrupted, pricing mechanisms react aggressively, pushing oil higher in a way that reflects fear, scarcity, and uncertainty all at once. This is not a slow-burning issue; it is a high-impact shock that is rippling across every financial and economic system simultaneously. Step 2: OPEC Has No Magic Bullet — Surge Capacity Is Limited When supply gets disrupted, the world usually turns to OPEC's surplus production capacity as a buffer. But that buffer has limits. The missing oil volume from the Hormuz blockade is so large that even strategic petroleum reserves (from the US, OECD nations, and China) cannot fully compensate. As Forbes pointed out, the primary economic effect of an oil crisis works through two channels: First-order effects: Inflation rises, consumer purchasing power falls, fuel prices jump Second-order effects: Higher energy costs ripple through every supply chain — food, shipping, manufacturing, aviation — making everything more expensive The deeper issue here is that the global energy system does not have enough flexibility to absorb shocks of this magnitude without consequences. Even when emergency reserves are deployed, they only provide temporary relief and cannot replace sustained daily supply flows. This creates a prolonged imbalance where elevated prices become the new normal, and those higher costs begin embedding themselves into the global economy, affecting everything from basic consumer goods to large-scale industrial operations. Step 3: Inflation Is Being Reignited This is where it starts to hit everyone directly. Former IMF Chief Economist Gita Gopinath warned that if oil averages $85/barrel through 2026, global inflation could jump by 60 basis points and global economic growth could be trimmed by 0.3 to 0.4 percentage points. We're already seeing oil well above $85 at current levels. That means: Household energy bills rising sharply Fuel prices climbing for every driver Central banks that were hoping to cut interest rates may now be forced to raise rates again — or at minimum, keep them elevated longer than planned The risk of a global recession climbs materially. Economists at the Washington Times estimate WTI oil hitting $138/barrel would push recession risk to 50% Developing and poorer nations are getting hit hardest — they literally get outbid for oil by wealthier economies, leading to fuel rationing and energy subsidies straining government budgets. This stage represents the transition from an energy problem to a full-scale economic problem, where rising oil prices begin to squeeze both consumers and governments at the same time, reducing spending power, increasing financial stress, and forcing policymakers into difficult decisions that can slow down economic growth even further. Step 4: This Is Being Called "The Oil Market's COVID Moment" Axios described the current situation as the oil market's COVID moment — a structural shock, not just a temporary price spike. Just as COVID-19 forced demand destruction by getting "cars off roads, ships off seas, planes out of skies," the current supply shock is so severe that prices have to rise high enough to forcibly reduce global oil consumption. The feedback loop is dangerous: War disrupts supply Prices spike Inflation surges Central banks tighten or hold rates Consumer spending falls Business confidence crumbles Risk of recession rises Markets sell off — including crypto This feedback loop highlights how interconnected modern markets have become, where a single geopolitical event can cascade through multiple layers of the global economy, eventually impacting assets like crypto that are not directly tied to oil but are heavily influenced by liquidity and investor sentiment. PART 2 — HOW THIS IS DRAGGING BTC AND CRYPTO DOWN Step 5: The "Risk-Off" Tsunami — Investors Are Running Away From Everything Risky When oil spikes and recession fears mount, global investors execute what Wall Street calls a "risk-off" rotation — they sell high-risk assets (equities, crypto) and move into safe havens (gold, US treasuries, cash, stable bonds). Bitcoin is perceived as a risk-on asset by institutional investors. When macro fear rises, BTC gets sold. The data confirms this brutally: BTC price right now: -$66,445 24h change: -1.02% 30-day change: -6.26% 90-day change: -27.41% Down roughly 18-20% since the start of 2026 Still sitting approximately 41-44% below its all-time high near $126,000 reached in October 2025 ETH is in even worse shape on the longer timeframe: ETH price right now: -$2,045 90-day change: -34.95% This movement reflects a broader shift in investor psychology, where preserving capital becomes more important than seeking returns, leading to aggressive selling in volatile assets regardless of their long-term potential. Step 6: Bitcoin Just Matched Its Worst Streak in History CoinDesk reported that Bitcoin is on the verge of matching a joint record of six consecutive monthly losses — a streak only seen once before, between August 2018 and January 2019, during the worst crypto bear market of that era. The first 50 days of 2026 marked the worst-ever start to a year for BTC on record. That's not just bad luck — it reflects genuine macro pressure. This kind of prolonged weakness is rarely driven by technical factors alone; it usually indicates a deeper macro environment where liquidity is drying up and confidence is consistently being eroded over time. Step 7: Institutional Money Is Pulling Out This cycle is different from 2018 because institutions are now deeply involved. And when macro conditions deteriorate, institutions are the first to pull out systematically. Bitcoin ETFs — which were the rocket fuel behind the 2024 bull run — saw nearly $4 billion in net outflows in just the first five weeks of 2026. Companies that built Bitcoin treasuries are also unwinding positions: MARA Holdings sold 15,133 BTC for -$1.1 billion in March 2026 Genius Group liquidated its entire BTC treasury to pay off debt Cango Inc. sold 4,451 BTC GD Culture Group authorized sale of a portion of its 7,500 BTC treasury The "Bitcoin treasury boom" that characterized 2024-2025 is actively unwinding. Only Michael Saylor's Strategy continues buying — but one buyer cannot absorb all that selling pressure. This reflects a structural shift where capital that once supported the market is now being withdrawn, creating sustained downward pressure that cannot be easily reversed without a significant improvement in macro conditions. Step 8: Quantum Computing Fear Added Fuel to the Fire As if macro pressure wasn't enough, this week Elon Musk and Google's quantum computing developments added fresh fear. Project Eleven, a quantum risk research group, estimated that approximately 7 million BTC worth -$470 billion could be vulnerable to quantum computing attacks in the future. Google dramatically brought forward its quantum computing timeline, triggering fresh concerns. Musk publicly warned: "You have until 2029." BlackRock also issued a separate $1 trillion crypto market warning in the same week. This type of technological uncertainty does not immediately impact price fundamentals, but it significantly affects investor confidence, especially in already fragile conditions. Step 9: The Oil-Crypto Connection Is Real and Direct Here's why oil prices and crypto prices are not separate stories — they are the same story: Inflation surges, forcing central banks to keep interest rates high, which reduces liquidity flowing into risk assets. Growth fears rise, pushing investors to sell Bitcoin and reduce exposure to volatility. Recession risks increase, leading companies to liquidate crypto holdings to maintain financial stability. Consumer confidence declines, weakening retail participation in the market. At the same time, rising energy costs directly impact Bitcoin mining, making operations more expensive and forcing miners to sell BTC to cover costs, which adds continuous selling pressure into the market. PART 3 — WHAT COULD TURN THIS AROUND Step 10: The Potential Reversal Catalysts Despite all of the above, there are reasons to watch carefully rather than panic-sell at the bottom: For Oil: Any diplomatic breakthrough that reopens the Strait of Hormuz would trigger an immediate oil price drop Iran already signaled "cooperation on key shipping routes" briefly on April 2nd, causing Bitcoin to trim losses and stocks to erase a 2% decline in a single session — showing how quickly things can reverse For Bitcoin: Historical data shows 8 out of 13 Aprils since 2013 have closed in the green for BTC, with an average April gain of 13% BTC remains above its critical 200-week moving average at $59,268 and its realized price (average on-chain cost basis) at $54,177 — both are historically strong support levels Some analysts believe Bitcoin is in a "time pain trap" — needing a few more months of boring, sideways or slightly down price action before finding a true floor and recovering These factors highlight that while the current environment is heavily bearish, it is not without potential turning points, especially if macro conditions begin to stabilize. SUMMARY — THE BIG PICTURE Oil is rising because: A geopolitical war disrupted the world's most critical oil shipping route, causing a supply shock that is reigniting inflation, threatening global growth, and forcing a recession risk conversation that nobody wanted to have in 2026. Crypto is falling because: Rising oil = rising inflation = higher interest rates for longer = risk-off investor behavior = institutional selling + miner selling + ETF outflows + fear compounding on top of quantum computing concerns. The key number to watch: If Brent crude drops back below $85/barrel due to diplomatic resolution, expect a rapid reversal in both stock markets and crypto. If oil climbs toward $138/barrel, brace for deeper market pain across all asset classes. The macro environment and geopolitics are driving everything right now, and this is one of those rare periods where external forces matter more than technical analysis. Staying informed, managing risk carefully, and understanding the bigger picture is essential for navigating this phase of the market.
#Gate广场四月发帖挑战 
Quantum computing indeed poses a long-term theoretical threat to Bitcoin's cryptographic foundations, but claims like "cracking in 10 minutes" are often misinterpretations of academic research. Currently, there is still a significant time window before real risks emerge, and the community has already outlined clear defense strategies.
1. The Truth About the Threat: It’s a "Theoretical Scenario" Not an "Immediate Crisis"
The truth about "cracking in 10 minutes": The recent buzz about "Google claiming to crack in 10 minutes" comes from its quantum AI team's theoretical research. The study indicates that, on an idealized large-scale fault-tolerant quantum computer, breaking Bitcoin signatures (ECDSA) could theoretically be reduced to about 10 minutes (close to block time). However, this requires approximately 500k physical qubits, while Google's most advanced processors currently have only about 100, and with high noise levels. This remains a "paper exercise," not an implemented technology.
The real risk point: Quantum computers (running Shor's algorithm) mainly threaten public key cryptography (deriving private keys from public keys), not Bitcoin's hash algorithms (SHA-256). The highest risk is for addresses whose public keys are already exposed on the chain (such as reused old addresses).
2. Impact on Wallets: Not All Wallets Are "High Risk"
High-risk wallets: P2PK (early) addresses or reused addresses. These addresses' public keys are visible for a long time, and once quantum computers become practical, private keys could potentially be reverse-engineered.
Relatively safe wallets: SegWit (starting with bc1q) and single-use addresses. These addresses only reveal the public key hash before transactions; the public key is only briefly exposed during signature broadcasting. Cracking within the 10-minute confirmation window is extremely difficult, and further defenses (like signature aggregation) can be implemented through upgrades.
3. Countermeasures: Community Roadmap vs Personal Risk Management
Protocol upgrades (BIP-360, etc.): The Bitcoin core development community has proposed post-quantum cryptography (PQC) solutions, such as lattice-based Dilithium signatures. The plan is to introduce new quantum-resistant address types (like bc1r) via soft forks and gradually migrate assets. Google also recommends industry-wide migration before 2029.
Personal defense measures:
- Disable address reuse: Never reuse the same Bitcoin address for receiving funds.
- Large cold storage: For long-term assets, store them in cold wallets using unused addresses, ensuring the public key is never exposed.
- Beware of "quantum cracking" scams: Currently, there are no commercial quantum computers capable of cracking private keys. Any service claiming to offer "quantum-safe" hardware wallets requiring seed phrase import is a scam.
4. Timeline and Conclusion
Risk timeline: The academic consensus is that fault-tolerant quantum computers capable of breaking cryptography are unlikely to appear before 2035 or later. Bitcoin has enough time to implement smooth upgrades.
Conclusion: Quantum computing is a "Damocles sword" hanging over cryptocurrency, but not an imminent "beheading" crisis. For ordinary users, the biggest current risks remain poor private key management and phishing attacks, not quantum computing.
In summary: Quantum threats are a "gray rhino," not a "black swan." Keeping wallet software updated and avoiding address reuse can mitigate most current and future risks.
GrandpaNiuHasArrived
2026-04-04 02:40
#Gate广场四月发帖挑战 Quantum computing indeed poses a long-term theoretical threat to Bitcoin's cryptographic foundations, but claims like "cracking in 10 minutes" are often misinterpretations of academic research. Currently, there is still a significant time window before real risks emerge, and the community has already outlined clear defense strategies. 1. The Truth About the Threat: It’s a "Theoretical Scenario" Not an "Immediate Crisis" The truth about "cracking in 10 minutes": The recent buzz about "Google claiming to crack in 10 minutes" comes from its quantum AI team's theoretical research. The study indicates that, on an idealized large-scale fault-tolerant quantum computer, breaking Bitcoin signatures (ECDSA) could theoretically be reduced to about 10 minutes (close to block time). However, this requires approximately 500k physical qubits, while Google's most advanced processors currently have only about 100, and with high noise levels. This remains a "paper exercise," not an implemented technology. The real risk point: Quantum computers (running Shor's algorithm) mainly threaten public key cryptography (deriving private keys from public keys), not Bitcoin's hash algorithms (SHA-256). The highest risk is for addresses whose public keys are already exposed on the chain (such as reused old addresses). 2. Impact on Wallets: Not All Wallets Are "High Risk" High-risk wallets: P2PK (early) addresses or reused addresses. These addresses' public keys are visible for a long time, and once quantum computers become practical, private keys could potentially be reverse-engineered. Relatively safe wallets: SegWit (starting with bc1q) and single-use addresses. These addresses only reveal the public key hash before transactions; the public key is only briefly exposed during signature broadcasting. Cracking within the 10-minute confirmation window is extremely difficult, and further defenses (like signature aggregation) can be implemented through upgrades. 3. Countermeasures: Community Roadmap vs Personal Risk Management Protocol upgrades (BIP-360, etc.): The Bitcoin core development community has proposed post-quantum cryptography (PQC) solutions, such as lattice-based Dilithium signatures. The plan is to introduce new quantum-resistant address types (like bc1r) via soft forks and gradually migrate assets. Google also recommends industry-wide migration before 2029. Personal defense measures: - Disable address reuse: Never reuse the same Bitcoin address for receiving funds. - Large cold storage: For long-term assets, store them in cold wallets using unused addresses, ensuring the public key is never exposed. - Beware of "quantum cracking" scams: Currently, there are no commercial quantum computers capable of cracking private keys. Any service claiming to offer "quantum-safe" hardware wallets requiring seed phrase import is a scam. 4. Timeline and Conclusion Risk timeline: The academic consensus is that fault-tolerant quantum computers capable of breaking cryptography are unlikely to appear before 2035 or later. Bitcoin has enough time to implement smooth upgrades. Conclusion: Quantum computing is a "Damocles sword" hanging over cryptocurrency, but not an imminent "beheading" crisis. For ordinary users, the biggest current risks remain poor private key management and phishing attacks, not quantum computing. In summary: Quantum threats are a "gray rhino," not a "black swan." Keeping wallet software updated and avoiding address reuse can mitigate most current and future risks.
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JUST IN: Cambodia passes a law targeting crypto scams with up to 5 years in prison and hefty fines. This could raise regulatory risk for crypto players in the region and steer tighter compliance. $BTC $ETH
Bykaranteli
2026-04-04 02:39
JUST IN: Cambodia passes a law targeting crypto scams with up to 5 years in prison and hefty fines. This could raise regulatory risk for crypto players in the region and steer tighter compliance. $BTC $ETH
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