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Preço estimado
1 BTC0,00 USD
Bitcoin
BTC
Bitcoin
$70 849,8
-1.03%
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Como comprar Bitcoin(BTC) com cartão de crédito ou cartão de débito?

  • 1
    Criar a sua conta Gate.com e verificar a sua identidadePara comprar BTC em segurança, comece por se inscrever numa conta Gate.com e concluir a verificação da identidade KYC para proteger as suas transações.
  • 2
    Escolha BTC e método de pagamentoAceda à seção "Comprar Bitcoin(BTC)", selecione BTC, introduza o montante que pretende comprar e escolha cartão de débito como opção de pagamento. Em seguida, preencha os dados do seu cartão.
  • 3
    Receba BTC instantaneamente na sua carteiraDepois de confirmar a ordem, o BTC que comprar vai ser creditado de forma instantânea e segura na sua carteira Gate.com — pronto para ser negociado, guardado ou transferido.

Porquê comprar Bitcoin(BTC)?

O que é Bitcoin? O nascimento do ouro digital descentralizado
A Bitcoin (BTC) foi introduzida em 2008 por Satoshi Nakamoto e lançada oficialmente em 2009 como a primeira criptomoeda descentralizada do mundo. Permite pagamentos eletrónicos peer-to-peer sem intermediários como bancos ou governos. Todas as transações são registadas numa blockchain pública, garantindo transparência e segurança.
Como é que a Bitcoin funciona? Consenso PoW e tecnologia de blockchain
A Bitcoin funciona com um mecanismo de consenso de Prova de Trabalho (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 do bloco e regista a transação na blockchain. Este sistema assegura a segurança da rede, mas resulta num elevado consumo de energia e numa maior dificuldade de extração.
Oferta de Bitcoin e mecanismo de halving
A oferta de Bitcoin está estritamente limitada a 21 milhões de moedas, o que a torna absolutamente escassa. De quatro em quatro anos, um evento de "halving" reduz a recompensa do bloco para os mineradores, abrandando a criação de novas bitcoins. Isto reforça as propriedades anti-inflacionárias da Bitcoin e é um fator chave para a valorização do seu preço a longo prazo. Até ao final de 2024, foram extraídas mais de 19,7 milhões de bitcoins.
Histórico de preços e impacto no mercado
A Bitcoin começou praticamente sem valor, atingindo $20,000 in 2017 and hitting new highs above $60 000 em 2021. Tem registado uma volatilidade extrema - como o famoso "Bitcoin Pizza Day", que marcou a sua primeira utilização comercial. Apesar de, no passado, ter sido considerada uma bolha ou uma fraude, a crescente adoção institucional e generalizada fez com que o seu valor de mercado ultrapassasse 1 bilião de dólares.
Razões e riscos para investir em Bitcoin
Proteção contra a inflação e armazenamento de valor: a oferta fixa e os eventos de redução para metade fazem da Bitcoin um ouro digital e um potencial ativo de refúgio seguro. Alta liquidez: a BTC é negociada em todas as principais exchanges, permitindo uma fácil alocação de carteira. Descentralização e autonomia: não é controlada por uma única entidade; os utilizadores têm controlo total sobre os seus ativos. Técnica e riscos regulamentares: elevada volatilidade, regulamentos pouco claros, preocupações ambientais decorrentes da exploração mineira e utilidade de pagamento limitada.
Pontos de vista céticos e perspetivas alternativas
Apesar da sua natureza revolucionária, a eficiência da Bitcoin como instrumento de pagamento é baixa e os riscos regulamentares continuam a ser significativos. Alguns especialistas veem a Bitcoin mais como um ativo especulativo do que como uma reserva de valor estável. Os investidores devem avaliar cuidadosamente a sua tolerância ao risco.

Bitcoin(BTC) Preço atual e Tendências de mercado

BTC/USD
Bitcoin
$70 849,8
-1.03%
Mercados
Popularidade
Capitalização de mercado
#1
$1,41T
Volume
Oferta de circulação
$1,05B
20M

Atualmente, a Bitcoin (BTC) tem um preço de $70 849,8 por moeda. A oferta em circulação é de aproximadamente 20 001 768 BTC, resultando numa capitalização de mercado total de $20M, Classificação atual da capitalização de mercado: 1.

Nas últimas 24 horas, o volume de negociação do Bitcoin atingiu $1,05B, representando um -1.03% em comparação com o dia anterior. Na semana passada, o preço do Bitcoin +3.75%, refletindo a procura contínua de BTC como ouro digital e uma proteção contra a inflação.

Além disso, o máximo histórico da Bitcoin foi $126 080. A volatilidade do mercado continua a ser significativa, pelo que os investidores devem acompanhar de perto as tendências macroeconómicas e os desenvolvimentos regulamentares.

Bitcoin(BTC) Comparar com outras criptomoedas

BTC VS
BTC
em massa
Variação percentual de 24h
Alteração de 7d por cento
Volume de negociações 24h
Capitalização de mercado
Classificação de mercado
Oferta circulante

O que se segue depois de comprar Bitcoin(BTC)?

À vista
Negoceie em BTC a qualquer altura utilizando a vasta gama de pares de negociação da Gate.com, aproveite as oportunidades de mercado e aumente os seus ativos.
Simple Earn
Utilize o seu BTC ocioso para subscrever os produtos financeiros flexíveis ou a prazo fixo da plataforma e ganhar facilmente um rendimento extra.
Converter
Troque rapidamente BTC por outras criptomoedas com facilidade.

Vantagens de comprar Bitcoin através de Gate

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Outras criptomoedas disponíveis na Gate

Saiba mais sobre Bitcoin(BTC)

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Fluxos Divergentes de Fundos ETF: Entradas Líquidas Semanais para BTC, Saídas Significativas para ETH e SOL
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As reservas de BTC atingem o nível mais baixo desde 2019
As reservas de Bitcoin detidas nas plataformas de negociação caíram para 2,75 milhões de moedas. Os detentores de curto prazo estão a vender em pânico, enquanto os grandes investidores de longo prazo mantêm-se indiferentes. Os dados on-chain indicam que o mercado está a entrar numa fase crítica de compressão da oferta, o que poderá preparar o terreno para movimentos futu
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XZXX: A Comprehensive Guide to the BRC-20 Meme Token in 2025
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In 2025, getting Bitcoin for free has become a hot topic. From microtasks to gamified mining, to Bitcoin reward credit cards, there are numerous ways to obtain free Bitcoin. This article will reveal how to easily earn Bitcoin in 2025, explore the best Bitcoin faucets, and share Bitcoin mining techniques that require no investment. Whether you are a newbie or an experienced user, you can find a suitable way to get rich with cryptocurrency here.
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As últimas notícias sobre Bitcoin(BTC)

2026-03-14 01:52GateNews
Strategy 公司 STRC 本周交易量创新高,推算对应约 3.9 万枚 BTC 潜在购买规模
2026-03-13 14:09GateNews
随着比特币网络用户数达到5.71亿,大型比特币钱包重新开始积累。
2026-03-13 14:04Block Chain Reporter
比特币显示价值底部信号,但真正的市场底部缺失
2026-03-13 13:55Crypto Breaking
比特币在接近71K阻力位时交易区间收窄
2026-03-13 13:41GateNews
某交易员做多12万枚ETH和700枚BTC,总浮盈超2596万美元
Mais notícias sobre BTC
This oscillating market does have some patterns to it.
Since the beginning of this year, except for the breakthrough on March 5th which was a bit higher, the 4-hour RSI basically starts declining whenever it approaches 81. BTC may have topped, or it could rally for a few more hours before topping.
Yesterday was no exception.
TVBee
2026-03-14 02:01
This oscillating market does have some patterns to it. Since the beginning of this year, except for the breakthrough on March 5th which was a bit higher, the 4-hour RSI basically starts declining whenever it approaches 81. BTC may have topped, or it could rally for a few more hours before topping. Yesterday was no exception.
BTC
-0.92%
#BitcoinSurgesAbove$70K 
Bitcoin has been navigating a volatile yet bullish period, demonstrating resilience amid global uncertainty. After briefly touching a recent high of $73,896, BTC pulled back to trade around $70,685, following escalating geopolitical tensions in the Middle East. Military developments involving the U.S. and regional forces created immediate risk-off sentiment, triggering liquidation cascades in leveraged positions across crypto markets. Despite this, Bitcoin stabilized quickly, highlighting its growing role as a hedge asset and a modern safe-haven. The critical support zone of $70,000–$70,500 has now become a key battleground, where buyers are defending important levels as the market digests institutional flows, ETF activity, and macroeconomic signals.
1. Recent Price Action
Over the past 24 hours, Bitcoin experienced significant swings:
High: $73,896
Current: $70,685
Pullback: ~3.5%
7-day change: +7.1%
30-day change: +2.6%
90-day trend: -18.2%
These figures highlight that short-term momentum is strong, yet the market remains sensitive to external shocks and profit-taking near psychological resistance levels around $74K–$75K. BTC’s ability to stabilize above $70K after sudden geopolitical shocks signals that institutional and ETF-backed demand is increasingly providing a robust price floor.
2. Primary Drivers Behind the Rally
A. Institutional Accumulation
MicroStrategy, under Michael Saylor, continues to lead the institutional accumulation trend. Between February 9 and March 9, the company purchased 17,994 BTC at a cost of $1.28 billion, bringing total holdings to 738,731 BTC ($56B). On March 12 alone, MicroStrategy added 4,038 BTC, almost doubling its previous daily record. This scale of buying indicates a long-term conviction that Bitcoin will remain a primary treasury reserve asset, unaffected by short-term market volatility.
B. Spot ETF Inflows
U.S. Bitcoin spot ETFs are creating a structurally stronger demand floor:
March 10: $167.1M inflow
March 12: $115M inflow (BTC) + $57M (ETH) + $1.6M (SOL)
March 13: $53.8M inflow
These flows represent regulated, predictable demand, which stabilizes price against short-term selling and adds confidence that institutional participation is expanding consistently.
C. BlackRock & Whale Activity
BlackRock’s iShares Bitcoin ETF (IBIT) has purchased over $1.1B in BTC in recent weeks, signaling that large institutions are increasingly using Bitcoin as a hedge against geopolitical risk, fiat weakness, and market volatility. Simultaneously, a major whale moved ~2,003 BTC off exchanges (~$140M) between March 4–13, reducing liquid supply and adding upward pressure on price.
3. Geopolitical Impact
The recent pullback from nearly $74K was primarily triggered by escalating Middle East tensions. Military movements and heightened geopolitical risk caused short-term panic, liquidations in leveraged positions, and volatility spikes across crypto, equities, and commodities. Brent crude surged 9.2%, equity futures fell, and the U.S. dollar strengthened. Despite this, Bitcoin maintained key support at $70K, demonstrating resilience and reinforcing its emerging “digital gold” status.
4. Technical Analysis
Short-Term (15-Minute Chart):
MA7 < MA30 & MA120 → short-term bearish pressure
Price below MA20 → short-term weakness
Medium-Term (4-Hour Chart):
MA7 > MA30 & MA120 → medium-term uptrend intact
MACD shows weakening momentum → caution for short-term traders
Volume ~3x 7-day average → high volatility, active trading
Key Levels:
Immediate support: $70,000–$70,500
Next support: $68,000
Resistance: $74,000–$75,000
BTC needs to hold the $70K zone for continuation; a decisive breach could trigger a retest of $68K. Conversely, stability above this support opens the door for a retest of recent highs and potential further upside toward $75K.
5. Market Sentiment
Fear & Greed Index: 15 → Extreme Fear
Retail traders are cautious due to geopolitical developments
Institutional accumulation and ETF inflows are stabilizing price
This contrast creates opportunities for informed traders who focus on structural trends rather than short-term panic
6. Macro Context
Bitcoin’s performance is showing signs of decoupling from traditional risk assets:
U.S. equities weakened during the pullback
The U.S. dollar strengthened
Oil prices surged sharply
Despite these trends, BTC gained value, reinforcing its role as a store of value during periods of macro uncertainty. MicroStrategy’s Bitcoin-linked yield products also attracted additional capital, further supporting the price floor.
7. Summary & Outlook
Bitcoin’s movement above $70K reflects the interplay of several critical factors:
Institutional accumulation: MicroStrategy and BlackRock are buying at scale
Spot ETF inflows: Providing consistent, reliable demand
Whale activity: Reducing liquid supply, supporting upward pressure
Geopolitical resilience: BTC holds key support despite short-term shocks
Technical structure: Medium-term bullish, short-term momentum cautious
Key levels to watch:
Support: $70,000–$70,500
Resistance: $74,000–$75,000
Deeper support: $68,000
While short-term volatility remains elevated due to geopolitical events and market leverage, the structural foundations are strong. Institutional flows, ETF participation, and macro resilience combine to make the $70K zone the most critical pivot for near-term price action. Traders and investors should focus on these levels while monitoring both institutional demand and external shocks for guidance on future direction
.
Key Takeaways:
Institutional buying is the backbone of the current rally
Spot ETF inflows create a reliable floor against selling pressure
Geopolitical events increase short-term volatility but reinforce BTC’s safe-haven status
Medium-term trend remains bullish; short-term momentum requires caution
$70K–$70,500 is the key pivot for the next directional move
#BitcoinSurgesAbove$70K
HighAmbition
2026-03-14 02:01
#BitcoinSurgesAbove$70K Bitcoin has been navigating a volatile yet bullish period, demonstrating resilience amid global uncertainty. After briefly touching a recent high of $73,896, BTC pulled back to trade around $70,685, following escalating geopolitical tensions in the Middle East. Military developments involving the U.S. and regional forces created immediate risk-off sentiment, triggering liquidation cascades in leveraged positions across crypto markets. Despite this, Bitcoin stabilized quickly, highlighting its growing role as a hedge asset and a modern safe-haven. The critical support zone of $70,000–$70,500 has now become a key battleground, where buyers are defending important levels as the market digests institutional flows, ETF activity, and macroeconomic signals. 1. Recent Price Action Over the past 24 hours, Bitcoin experienced significant swings: High: $73,896 Current: $70,685 Pullback: ~3.5% 7-day change: +7.1% 30-day change: +2.6% 90-day trend: -18.2% These figures highlight that short-term momentum is strong, yet the market remains sensitive to external shocks and profit-taking near psychological resistance levels around $74K–$75K. BTC’s ability to stabilize above $70K after sudden geopolitical shocks signals that institutional and ETF-backed demand is increasingly providing a robust price floor. 2. Primary Drivers Behind the Rally A. Institutional Accumulation MicroStrategy, under Michael Saylor, continues to lead the institutional accumulation trend. Between February 9 and March 9, the company purchased 17,994 BTC at a cost of $1.28 billion, bringing total holdings to 738,731 BTC ($56B). On March 12 alone, MicroStrategy added 4,038 BTC, almost doubling its previous daily record. This scale of buying indicates a long-term conviction that Bitcoin will remain a primary treasury reserve asset, unaffected by short-term market volatility. B. Spot ETF Inflows U.S. Bitcoin spot ETFs are creating a structurally stronger demand floor: March 10: $167.1M inflow March 12: $115M inflow (BTC) + $57M (ETH) + $1.6M (SOL) March 13: $53.8M inflow These flows represent regulated, predictable demand, which stabilizes price against short-term selling and adds confidence that institutional participation is expanding consistently. C. BlackRock & Whale Activity BlackRock’s iShares Bitcoin ETF (IBIT) has purchased over $1.1B in BTC in recent weeks, signaling that large institutions are increasingly using Bitcoin as a hedge against geopolitical risk, fiat weakness, and market volatility. Simultaneously, a major whale moved ~2,003 BTC off exchanges (~$140M) between March 4–13, reducing liquid supply and adding upward pressure on price. 3. Geopolitical Impact The recent pullback from nearly $74K was primarily triggered by escalating Middle East tensions. Military movements and heightened geopolitical risk caused short-term panic, liquidations in leveraged positions, and volatility spikes across crypto, equities, and commodities. Brent crude surged 9.2%, equity futures fell, and the U.S. dollar strengthened. Despite this, Bitcoin maintained key support at $70K, demonstrating resilience and reinforcing its emerging “digital gold” status. 4. Technical Analysis Short-Term (15-Minute Chart): MA7 < MA30 & MA120 → short-term bearish pressure Price below MA20 → short-term weakness Medium-Term (4-Hour Chart): MA7 > MA30 & MA120 → medium-term uptrend intact MACD shows weakening momentum → caution for short-term traders Volume ~3x 7-day average → high volatility, active trading Key Levels: Immediate support: $70,000–$70,500 Next support: $68,000 Resistance: $74,000–$75,000 BTC needs to hold the $70K zone for continuation; a decisive breach could trigger a retest of $68K. Conversely, stability above this support opens the door for a retest of recent highs and potential further upside toward $75K. 5. Market Sentiment Fear & Greed Index: 15 → Extreme Fear Retail traders are cautious due to geopolitical developments Institutional accumulation and ETF inflows are stabilizing price This contrast creates opportunities for informed traders who focus on structural trends rather than short-term panic 6. Macro Context Bitcoin’s performance is showing signs of decoupling from traditional risk assets: U.S. equities weakened during the pullback The U.S. dollar strengthened Oil prices surged sharply Despite these trends, BTC gained value, reinforcing its role as a store of value during periods of macro uncertainty. MicroStrategy’s Bitcoin-linked yield products also attracted additional capital, further supporting the price floor. 7. Summary & Outlook Bitcoin’s movement above $70K reflects the interplay of several critical factors: Institutional accumulation: MicroStrategy and BlackRock are buying at scale Spot ETF inflows: Providing consistent, reliable demand Whale activity: Reducing liquid supply, supporting upward pressure Geopolitical resilience: BTC holds key support despite short-term shocks Technical structure: Medium-term bullish, short-term momentum cautious Key levels to watch: Support: $70,000–$70,500 Resistance: $74,000–$75,000 Deeper support: $68,000 While short-term volatility remains elevated due to geopolitical events and market leverage, the structural foundations are strong. Institutional flows, ETF participation, and macro resilience combine to make the $70K zone the most critical pivot for near-term price action. Traders and investors should focus on these levels while monitoring both institutional demand and external shocks for guidance on future direction . Key Takeaways: Institutional buying is the backbone of the current rally Spot ETF inflows create a reliable floor against selling pressure Geopolitical events increase short-term volatility but reinforce BTC’s safe-haven status Medium-term trend remains bullish; short-term momentum requires caution $70K–$70,500 is the key pivot for the next directional move #BitcoinSurgesAbove$70K
BTC
-0.92%
ETH
-1.3%
SOL
-2.2%
#btc# eth
Short positions collapsed again. Last night in the live stream, BTC 93500 short, Ethereum 2180 won big again. Strictly follow trading rules, don't second-guess yourself, and you will be unstoppable. Last night many people went all-in again, pointlessly got liquidated left and right!
JuYuanPeakBrother
2026-03-14 02:01
#btc# eth Short positions collapsed again. Last night in the live stream, BTC 93500 short, Ethereum 2180 won big again. Strictly follow trading rules, don't second-guess yourself, and you will be unstoppable. Last night many people went all-in again, pointlessly got liquidated left and right!
BTC
-0.92%
ETH
-1.3%
Mais publicações sobre BTC

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