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Preço estimado
1 BTC0,00 USD
Bitcoin
BTC
Bitcoin
$62 859,3
+0,27%
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Como comprar Bitcoin(BTC) com cartão de crédito ou cartão de débito?

  • 1
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  • 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
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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
$62 859,3
+0,27%
Mercados
Popularidade
Capitalização de mercado
#1
$1,26T
Volume
Oferta de circulação
$273,85M
20,05M

Atualmente, a Bitcoin (BTC) tem um preço de $62 859,3 por moeda. A oferta em circulação é de aproximadamente 20 052 412 BTC, resultando numa capitalização de mercado total de $20,05M, Classificação atual da capitalização de mercado: 1.

Nas últimas 24 horas, o volume de negociação do Bitcoin atingiu $273,85M, representando um +0.27% em comparação com o dia anterior. Na semana passada, o preço do Bitcoin +4.17%, 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)?

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Tom Lee: Irá a relação ETH/BTC fortalecer-se na segunda metade de 2026, sinalizando uma nova vaga de reavaliação de valor para a Ethereum?
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As últimas notícias sobre Bitcoin(BTC)

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Mais notícias sobre BTC
$BTC We're at a point where the next weekly close will give us a much better idea of whether we've already bottomed or if one final leg lower is still ahead.
A weekly close above 63.3k would be a strong sign of strength. It would give us a Bullish Engulfing on the weekly and add another confluence supporting the early bottom scenario.
If the bottom is in, we need to hold the 60.6k-59.8k region on a revisit.
We've built liquidity there during this move up, and it's a level that's likely to get swept. If we reclaim it and hold after taking out the liquidity, it'll be another strong confirmation that the bottom is behind us.
If we fail to close the week above 63.3k, another leg lower over the next week or two remains the more likely outcome. Considering this move came mainly over the weekend and at the start of the month, a rejection here wouldn't be surprising.
If we secure the weekly close above 63.3k, the probability of an early bottom increases significantly. Any revisit into 60.6k-59.8k then becomes a key area that bulls need to defend.
As of now, we're seeing some rejection around 63.2k on the LTF, which is why I'm still holding the short but I'm not biased here.
There are solid confluences supporting both the bullish and the bearish scenario, and I'm positioned accordingly. I'm already 40% allocated in spot, which is enough if we front-run the lower bids. When we get proper bottom confirmation instead, I'll simply add higher and still end up with a solid average.
CryptoZeno
05-07-2026 14:11
$BTC We're at a point where the next weekly close will give us a much better idea of whether we've already bottomed or if one final leg lower is still ahead. A weekly close above 63.3k would be a strong sign of strength. It would give us a Bullish Engulfing on the weekly and add another confluence supporting the early bottom scenario. If the bottom is in, we need to hold the 60.6k-59.8k region on a revisit. We've built liquidity there during this move up, and it's a level that's likely to get swept. If we reclaim it and hold after taking out the liquidity, it'll be another strong confirmation that the bottom is behind us. If we fail to close the week above 63.3k, another leg lower over the next week or two remains the more likely outcome. Considering this move came mainly over the weekend and at the start of the month, a rejection here wouldn't be surprising. If we secure the weekly close above 63.3k, the probability of an early bottom increases significantly. Any revisit into 60.6k-59.8k then becomes a key area that bulls need to defend. As of now, we're seeing some rejection around 63.2k on the LTF, which is why I'm still holding the short but I'm not biased here. There are solid confluences supporting both the bullish and the bearish scenario, and I'm positioned accordingly. I'm already 40% allocated in spot, which is enough if we front-run the lower bids. When we get proper bottom confirmation instead, I'll simply add higher and still end up with a solid average.
BTC
+0,37%
💥✨️ Everyone is asking where $BTC goes next.
Here's one thing the market keeps overlooking:
Every single year since 2020, #Bitcoin has delivered a strong move during the July–August window.
🔹 2020: +41%
🔹 2021: +72%
🔹 2022: +34%
🔹 2023: +28%
🔹 2024: +31%
🔹 2025: +27%
Six consecutive years isn't proof.
But it's enough to keep this period on your radar.
If this seasonal pattern plays out once again, Bitcoin could see a relief rally toward the $78K–$80K range during July/August before the next major move.
Just a historical observation, not a guarantee.
NFA.
$BTC  ‌
TheBuzzingBee
05-07-2026 14:11
💥✨️ Everyone is asking where $BTC goes next. Here's one thing the market keeps overlooking: Every single year since 2020, #Bitcoin has delivered a strong move during the July–August window. 🔹 2020: +41% 🔹 2021: +72% 🔹 2022: +34% 🔹 2023: +28% 🔹 2024: +31% 🔹 2025: +27% Six consecutive years isn't proof. But it's enough to keep this period on your radar. If this seasonal pattern plays out once again, Bitcoin could see a relief rally toward the $78K–$80K range during July/August before the next major move. Just a historical observation, not a guarantee. NFA. $BTC ‌
BTC
+0,38%
ETH at $1,760? Double bottom confirmed?
First, look at the chart: brutal—but strangely suspicious.
From the August 2025 high of $4,950 to today’s $1,760, 65% is gone. Three consecutive quarters of decline—Q4, Q1, Q2, all green. In ETH’s history, it has never been this bad. ETF outflows keep coming, and Citigroup has cut its target price for ETH to $2,240; even under a bear-market scenario, it’s looking at $1,094. Social media is full of wailing—posts saying “ETH is going to zero” are everywhere.
But if you look closely at the weekly chart: the double bottom is forming.
That’s how the market works: when it drops to the point where everyone starts doubting themselves, the reversal quietly arrives.
First: the fundamentals are rock-solid, but the price is like rotten mud
DeFi TVL is $39.8 billion—still #1 across the entire chain
$150 billion in stablecoins running on top of it
31,000 developers, leading globally
Staking ratio at 26%, with 31 million ETH locked
These numbers are exactly the same as when ETH was at $4,950. The price has been cut in half—yet the fundamentals haven’t changed at all.
Second: weekly double bottom + trendline breakout—this is the technical setup worth betting on most in 2026
I’ve seen countless fake breakouts in crypto. But for this double bottom, I’m willing to take the bet.
January low at $1,700, July low at $1,700—both times it stopped falling at the same level
Weekly breakout of the downtrend trendline—classic reversal signal
ETH/BTC ratio at 0.028, a multi-year low—ETH is even cheaper than BTC. Historically, every time it reaches this level, it’s followed by a brutal, violent catch-up rally.
Of course, short-term risk is still there: $1,800 is the first hurdle, $2,000 the second, $2,200 the third. Every level has trapped positions waiting to be freed.
Third: Citigroup says ETH will fall to $1,094?
Citigroup cut its BTC target from $112,000 to $82,000, and lowered ETH from $3,175 to $2,240—under a bear scenario, it sees $1,094.
Sounds scary? But in 2023, Citi said BTC would fall to $10,000. What happened?
Institutions are always late to the game: in a bull market they call for even higher at the top, and in a bear market they call for even lower at the bottom.
Key levels
Resistance above: $1,800 (first checkpoint) → $2,000 (psychological level) → $2,200
Support below: $1,700 (double bottom low) → $1,650 → $1,500
Bull vs. bear—you decide
Bears say:
Three consecutive quarters of decline, a first in history
ETF outflows continue, institutions aren’t buying
Citi lowered its target, and the bear case could go to $1,094
The market’s sentiment is extremely pessimistic
Bulls say:
Weekly double bottom + trendline breakout
Gas fees are extremely low, with usage costs at historic lows
Whale holdings are rising, and validator exits are decreasing
ETH/BTC ratio at multi-year lows—historically, it’s always a sign of big rebounds
Short-term traders:
Go long in batches in the $1,700–$1,750 range, stop-loss at $1,680, target $1,800–$1,850. Add more above $1,800 and aim for $2,000.
Swing traders:
DCA below $1,750—add a tranche for every 5% drop, target $2,200–$2,800.
Long-term believers:
Hold ETH in the $1,700–$1,750 range. Looking back from 2027, it’ll be no different from the $300 level in 2020.
Risk-control iron rules:
Always keep 30% cash
No single trade should exceed 5% of total capital
Unconditional stop-loss if it breaks below $1,680—then wait to re-enter at $1,500
In a bull market, 95% of the time is waiting, and 5% of the time is when it rallies.
You made it through the drop from $4,900 to $1,700—yet you’re going to cut losses at $1,700?
Then the past six months were in vain.
ETH/BTC at a historic low of 0.028. The last time this number appeared, ETH went on to rise 4x.
The double bottom has already formed, and the trendline has already been broken.
Now the only thing left to do is wait for that explosive high-volume green candle. #gStocks代币化股票上线 #非农爆冷打压加息预期 $ETH $BTC #ETH突破1700 $SOL
Mining_sLittleSheep
05-07-2026 14:11
ETH at $1,760? Double bottom confirmed? First, look at the chart: brutal—but strangely suspicious. From the August 2025 high of $4,950 to today’s $1,760, 65% is gone. Three consecutive quarters of decline—Q4, Q1, Q2, all green. In ETH’s history, it has never been this bad. ETF outflows keep coming, and Citigroup has cut its target price for ETH to $2,240; even under a bear-market scenario, it’s looking at $1,094. Social media is full of wailing—posts saying “ETH is going to zero” are everywhere. But if you look closely at the weekly chart: the double bottom is forming. That’s how the market works: when it drops to the point where everyone starts doubting themselves, the reversal quietly arrives. First: the fundamentals are rock-solid, but the price is like rotten mud DeFi TVL is $39.8 billion—still #1 across the entire chain $150 billion in stablecoins running on top of it 31,000 developers, leading globally Staking ratio at 26%, with 31 million ETH locked These numbers are exactly the same as when ETH was at $4,950. The price has been cut in half—yet the fundamentals haven’t changed at all. Second: weekly double bottom + trendline breakout—this is the technical setup worth betting on most in 2026 I’ve seen countless fake breakouts in crypto. But for this double bottom, I’m willing to take the bet. January low at $1,700, July low at $1,700—both times it stopped falling at the same level Weekly breakout of the downtrend trendline—classic reversal signal ETH/BTC ratio at 0.028, a multi-year low—ETH is even cheaper than BTC. Historically, every time it reaches this level, it’s followed by a brutal, violent catch-up rally. Of course, short-term risk is still there: $1,800 is the first hurdle, $2,000 the second, $2,200 the third. Every level has trapped positions waiting to be freed. Third: Citigroup says ETH will fall to $1,094? Citigroup cut its BTC target from $112,000 to $82,000, and lowered ETH from $3,175 to $2,240—under a bear scenario, it sees $1,094. Sounds scary? But in 2023, Citi said BTC would fall to $10,000. What happened? Institutions are always late to the game: in a bull market they call for even higher at the top, and in a bear market they call for even lower at the bottom. Key levels Resistance above: $1,800 (first checkpoint) → $2,000 (psychological level) → $2,200 Support below: $1,700 (double bottom low) → $1,650 → $1,500 Bull vs. bear—you decide Bears say: Three consecutive quarters of decline, a first in history ETF outflows continue, institutions aren’t buying Citi lowered its target, and the bear case could go to $1,094 The market’s sentiment is extremely pessimistic Bulls say: Weekly double bottom + trendline breakout Gas fees are extremely low, with usage costs at historic lows Whale holdings are rising, and validator exits are decreasing ETH/BTC ratio at multi-year lows—historically, it’s always a sign of big rebounds Short-term traders: Go long in batches in the $1,700–$1,750 range, stop-loss at $1,680, target $1,800–$1,850. Add more above $1,800 and aim for $2,000. Swing traders: DCA below $1,750—add a tranche for every 5% drop, target $2,200–$2,800. Long-term believers: Hold ETH in the $1,700–$1,750 range. Looking back from 2027, it’ll be no different from the $300 level in 2020. Risk-control iron rules: Always keep 30% cash No single trade should exceed 5% of total capital Unconditional stop-loss if it breaks below $1,680—then wait to re-enter at $1,500 In a bull market, 95% of the time is waiting, and 5% of the time is when it rallies. You made it through the drop from $4,900 to $1,700—yet you’re going to cut losses at $1,700? Then the past six months were in vain. ETH/BTC at a historic low of 0.028. The last time this number appeared, ETH went on to rise 4x. The double bottom has already formed, and the trendline has already been broken. Now the only thing left to do is wait for that explosive high-volume green candle. #gStocks代币化股票上线 #非农爆冷打压加息预期 $ETH $BTC #ETH突破1700 $SOL
ETH
+0,09%
BTC
+0,38%
SOL
-1,51%
Mais publicações sobre BTC

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