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Autor Tópico: Bitcoin - Tópico principal  (Lida 379042 vezes)

Jérôme

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Re: Bitcoin - Tópico principal
« Responder #100 em: 2013-09-03 18:49:05 »
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How Bitcoin Spreads Violate a Fundamental Economic Law

If you click over to Mt. Gox, the most famous bitcoin exchange, one unit of the crypto-currency will set you back $145. But at Bitstamp you would pay only $129. (At time of writing; prices can change quickly.)

Mt. Gox traders are thus paying a 12% premium for their bitcoins.

That spread seems to violate a fundamental economic law. When transaction costs are low, identical items should trade at nearly identical prices. Otherwise, arbitrageurs would step in to buy cheap and sell dear until the price gap narrows.

But that isn’t happening.

The “law of one price” used to hold. Last fall and winter bitcoin prices at the two big exchanges typically differed by less than 2 percent, a reasonable range given exchange fees and the cost of money transfers:


In April, however, the bitcoin market went haywire. After spiking to $266 on Mt. Gox, bitcoin prices cratered, falling as low as $54 just two days later. That volatility created large, but temporary spreads between prices on different exchanges (and made it difficult to measure spreads accurately).

When conditions calmed, spreads returned to normal. And then Mt. Gox’s troubles began.

On May 14 the U.S. government accused the exchange of operating an illegal money service business. The government seized $5 million that Mt. Gox held at Dwolla (an online payment processor) and Wells Fargo WFC +0.1%.

Fearing for their money, Mt. Gox customers converted their at-risk dollars into easy-to-withdraw bitcoins, and the Mt. Gox-Bitstamp spread spiked to 5%.

Spreads briefly normalized until Mt. Gox announced that it was suspending U.S. dollar withdrawals. Mt. Gox had become a Roach Motel (or, if you prefer, a Hotel California) for U.S. dollars. Traders could check their dollars in, but they couldn’t check them out.

Customers responded as you would expect. The spread spiked to 6%, as Mt. Gox traders again converted dollars into bitcoins. The spread briefly narrowed after Mt. Gox’s July 4 announcement of resumed dollar withdrawals. But spreads then spiked to record levels once Mt. Gox customers started reporting that withdrawals remained slow or nonexistent.

Mt. Gox prices are higher than on Bitstamp today because customers apparently can’t get their dollars out of Mt. Gox. So they pay extra for bitcoins. For those customers, a Mt. Gox bitcoin is different from one anywhere else. So the Mt. Gox price isn’t a clean measure of a bitcoin’s value. Instead, it measures the value of a bitcoin plus the desperation of Mt. Gox’s customers.

But that still leaves a puzzle. It makes sense that customers will pay a premium to get their money out. But who is willing to take the other side of the trade, selling bitcoins in return for “Mt. Gox dollars”?

As best as I can tell, those traders have stayed silent on the bitcoin chat boards. Perhaps they are newcomers who think they’ve found an arbitrage opportunity and don’t realize their dollars will be hard to withdraw. Or perhaps they believe that Mt. Gox will get its act together. (A more sinister take, raised on the boards, is that some preferred traders do have the ability to withdraw.) Whatever the case, they stand to make a tidy profit if they can get their dollars out, and sorely disappointed if they can’t.

Sources: For a quick explanation of bitcoin, try this introduction. For price data from numerous exchanges, visit bitcoin charts. My chart uses a 7-day moving average of spreads to smooth the volatility. The measured spread has at times been much higher, e.g., 40%+ on April 10, but that passed quickly.

Disclosure: I own 0.1 bitcoin.




Fonte: Forbes

btcmb

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Re: Bitcoin - Tópico principal
« Responder #101 em: 2013-09-05 20:35:29 »
Será que o EBay está a pensar aceitar bitcoin?

http://deals.ebay.com/blog/whats-the-deal-with-bitcoins-anyway/

What's the Deal with Bitcoins Anyway?
« Última modificação: 2013-09-05 20:38:46 por Incognitus »
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Jérôme

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Re: Bitcoin - Tópico principal
« Responder #102 em: 2013-09-20 18:16:08 »
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Bitcoin gaining market-based legitimacy as XBT

Punctual trams run quietly along the street out front. It looks like any other office building in Zürich. But inside the nondescript building of SIX Interbank Clearing, a small unit of professionals maintains the list of the world’s currency codes.

Last week in that very same building, I had the honor of presenting the bitcoin cryptocurrency to a gathered audience of various bank officials at an e-commerce conference. And I mentioned that the individual, or committee, that endorses and finalizes XBT as the ISO currency code for bitcoin will earn their spot in history next to Satoshi Nakamoto.

Of course, a new code for a brand new asset class is not comparable to an achievement in financial cryptography and distributed consensus, but significant nonetheless because of its impact on the evolution of math-based currencies.

The ISO 4217 standard for currency codes is published by a voluntary, non-governmental organization independent of any national agenda. It operates more or less as a body that approves the three-character currency codes of new countries or regions. In some cases, the code reflects a non-governmental unit such as gold (XAU) and silver (XAG).

Beyond the regulations and government approval that so frequently underpin discussions about the legitimacy of bitcoin, a different type of legitimacy is emerging and it has the ability to out-survive the elected administrations of legal jurisdictions.

This market-based legitimacy holds the key to bitcoin’s success – not the sanctions and official blessings for what’s an appropriate monetary unit. Governments and regulators may come and go, but customs and convention persevere.

Currency code XBT is a sign of this growing market-based influence, at least among the organizations currently depending on such codes. Governments generally follow rather than lead market adoption because it is too difficult to alter the course of momentum.

Uniquely, bitcoin operates as both a value transfer network and a separate unit of account. Therefore, it doesn’t require the services of a third-party intermediary to approve and route transactions. However, as a monetary unit, bitcoin offers great opportunities for those that desire to trade or price in bitcoin and perhaps layering services on top of the protocol.

At the top of the pyramid is SWIFT, a member-owned cooperative that provides the communication platform to connect more than 10,000 banking organizations in 210 countries (16 more countries than the United Nations).

SWIFT’s influence is so pervasive that its ecosystem is a daily barometer of global economic performance such as GDP growth rates, capital flows, and foreign exchange trade volatility.

Once again, bitcoin is a major topic of conversation at Sibos, the annual SWIFT conference being held in Dubai this year.

In prepared remarks yesterday, SWIFT CEO Gottfried Leibbrandt said, “I would not see why we at Swift could not send transactions in bitcoin as a currency.” If they do, they will undoubtedly look to the ISO for the currency code. The Bitcoin Foundation had two scheduled appearances at the SWIFT conference.

Also, the payment networks like VISA, MasterCard, and American Express all rely on the ISO 4217 codes for international transactions and currency conversion. Once the member banks start requesting settlement in bitcoin for certain transactions, the payment networks will look to the ISO for the corresponding currency code.

XE.com, one of the world’s leading providers of Internet foreign exchange tools and services, recently began displaying bitcoin prices in XBT across their data feed. Founded in 1993, the company licenses over 35,000 XE Currency Converters, provides commercial currency data to over 1,000 clients, and serves 18 million unique users per month.

Service provider OANDA also displays bitcoin prices using the currency code XBT. OANDA is a market maker and a trusted source for currency data serving individuals and financial institutions. Founded in 1995, it provides access to one of the world’s largest historical, high frequency, filtered currency databases serving over 30 million requests per month.

Not to be outdone, Bloomberg in August announced that they were testing XBT price quotes internally lending more ammunition to the push for formal code adoption.

In the bitcoin trading world, exchange operator Kraken became the first to make the formal switch to XBT this week and other bitcoin exchanges are expected to follow suit.

In the retail foreign exchange trading world, platform market leaders like MetaTrader 4 are witnessing client firms undertake the bitcoin modifications on their own. Although not expressing trades in XBT yet, the gradual adoption of bitcoin into existing forex platforms signals a huge shift in market trading. So far, only three companies are known to have incorporated bitcoin into the MT4 environment, including AvaTrade, BTC-E, and Bit4X.

XBT may represent the beginning for bitcoin standards and market-based legitimacy, but it is certainly not the end. Next up on the standards agenda is the Unicode symbol for bitcoin with B⃦ or ฿ as the two leading contenders.


Fonte: http://www.coindesk.com/bitcoin-gaining-market-based-legitimacy-xbt/

mh1

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Re: Bitcoin - Tópico principal
« Responder #103 em: 2013-09-20 19:33:17 »
Será que o EBay está a pensar aceitar bitcoin?

http://deals.ebay.com/blog/whats-the-deal-with-bitcoins-anyway/

What's the Deal with Bitcoins Anyway?


Tenho as minhas dúvidas. Resumo em 3 pontos:
1) A Amazon não aceita Paypal;
2) O Paypal teria que aceitar os BitCoins;
3) Aceitar Bitcoins aumentaria o número de fraudes praticadas no Ebay.


btcmb

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Re: Bitcoin - Tópico principal
« Responder #104 em: 2013-09-21 12:52:19 »
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Germany's Ministry of Finance recently endorsed Bitcoins as private money, making it the first country to legally accept Bitcoins. The Cryto-currency is expected to be governed under the same fiscal and legal rules as the Euro.


Germany Legalizes Bitcoin
« Última modificação: 2013-09-21 12:55:16 por btcmb »
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Jérôme

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Re: Bitcoin - Tópico principal
« Responder #105 em: 2013-09-27 04:44:51 »
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The Bitcoin Investment Trust (BIT) is a private, open-ended trust that is invested exclusively in bitcoin and derives its value solely from the price of bitcoin. It enables investors to gain exposure to the price movement of bitcoin without the challenges of buying, storing, and safekeeping bitcoins.

The Bitcoin Investment Trust is designed for sophisticated investors looking for exposure to bitcoin in a simple investment vehicle. The BIT addresses the confusing and cumbersome experience of buying, storing and safekeeping large quantities of bitcoins as an investment.

Launched in 2013, the BIT is sponsored by Alternative Currency Asset Management (ACAM), a wholly-owned subsidiary of SecondMarket Holdings, Inc. and an affiliate of SecondMarket, Inc. (custodian, marketing and distribution partner). ACAM has engaged leading service providers Ernst & Young (auditor), Sidley Austin LLP (legal counsel), Continental Stock Transfer & Trust (transfer and administrative agent), and Corporation Service Company (trustee).

INVESTMENT DETAILS

INVESTMENT MINIMUM:
$25,000

INVESTOR QUALIFICATION:
Accredited investor

FRONT END FEE:
1.5% (waived for investments made in 2013)

ANNUAL ADMINISTRATIVE AND SAFEKEEPING FEE:
2.0%

BACK END FEE:
1.5%

LIQUIDITY:
To commence no later than March 2014.


http://www.bitcointrust.co/

 ::)

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Jérôme

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Re: Bitcoin - Tópico principal
« Responder #107 em: 2013-10-17 23:31:20 »
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Kraken partners with Fidor Bank to offer bitcoin trading services in the EU

Digital currency exchange Kraken has forged a partnership with Munich-based Fidor Bank to offer its European customers regulated bitcoin trading services.

Jesse Powell, CEO of Payward Ltd, which is the developer of Kraken, said the exchange has found its “ideal partner” in Fidor Bank.

He described the bank as a “responsible, forward-thinking financial institution” and praised its desire to combine the “predictability and stability of traditional banking relationships with the social and economic benefits of new digital currencies”. Powell added:

“From the beginning, our goal has been to establish bitcoin and other digital currencies as legitimate complements to the euro, the pound and other traditional, government-issued currencies.”

Kraken is now looking to offer its services outside the EU by cooperating with financial industry partners and regulatory authorities across the world.

This isn’t the first bitcoin company Fidor has partnered with – back in July the bank teamed up with German bitcoin marketplace bitcoin.de, which is operated by Bitcoin Deutschland GmbH.

Upon the announcement of this partnership, Oliver Flaskämper, managing director of Bitcoin Deutchland GmbH, said: “With Fidor Bank AG as our partner, the digital bitcoin currency, which was initially smiled at as internet play money, is increasingly turning into a serious alternative currency after only four years.”

Fidor Bank says its long-term goal is to bring important market innovations to its customers. Matthias Kröner, CEO of Fidor, said the bank has noticed digital currencies start to emerge as “serious and useful alternatives to government-issued currencies”.

“With Kraken, we can enable our customers to trade bitcoin and other digital currencies just as securely, easily and flexibly as they trade other foreign currencies today,” he added.

Jérôme

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Re: Bitcoin - Tópico principal
« Responder #108 em: 2013-10-17 23:48:36 »
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Baidu division now accepting bitcoins

Chinese search engine Baidu, the world's fifth most visited site according to one set of rankings, has announced it has started to accept the online currency, bitcoin, for its security service.

Jiasule, a Baidu division aimed at improving the security and performance of websites, started supported bitcoin payments on Monday to meet the needs of its users, the company said in a statement Tuesday.

"Jiasule, as the innovator of the internet, has become the first cloud services vendor to support bitcoin, giving us richer payment methods and experience," the company said.

Bitcoin is a "virtual" currency that allows users to exchange online credits for goods and services. While there is no central bank that issues them, bitcoins can be created online by using a computer to complete difficult tasks, a process known as mining. Some 11.75 million bitcoins are believed to be in circulation, with a cap of 21 million—meaning no more bitcoins can created after that point. On Wednesday morning one bitcoin was worth just under $160, according to bitcoincharts.com.

"(Bitcoin) has already reached into our daily lives," Baidu said in the statement.
"It can be used to buy a cup of coffee, or exchanged for gold and silver. In China, bitcoin is considered quite 'trendy'.

"During the summer, predominant Chinese state television company CCTV broadcast a documentary detailing the digital currency and many analysts see that a key point at which interest in the bitcoin increased. Downloads of bitcoin wallets surged in the few days following the documentary, according to statistics from SourceForge, rising to second place in the global ranking behind the United States. Bitcoincharts.com has data that shows the Chinese yuan is now the second most traded currency pair with bitcoin after the U.S. dollar.

Banking on the Bitcoin craze
Barry Silbert, SecondMarket founder & CEO, discusses the launch of its newly-minted Bitcoin Investment Fund, which is a digital currency-focused fund for institutional and "sophisticated" investors.

"It looks like the same trends we see with BRIC (Brazil, Russia, India and China) nations doing currency swap deals outside of the USD as a way to hedge or outright avoid the dollar is now spilling over to bitcoin," Max Keiser, a broadcaster and advocate of the currency told CNBC, who now predicts the price of bitcoins could surge upwards to $300.

As for Google, speculation has been rife that the American search engine company might look to integrate the currency. Back in May, the company's investment arm, Google Ventures, opted to part-fund Ripple, a payment system using bitcoin and other currencies.

Mike Hearn, a Google software engineer living in Switzerland is also working on micropayment systems that involve bitcoin, but confirmed to CNBC that the project was being conducted away from his professional duties.

In September, Jonathon Waller a developer at startup incubator BitcoinEAST in Japan received a response from Google indicating that Google Shopping Express were "looking into" using bitcoin as a payment method. However, this has since been denied by a Google spokesperson.

"The customer support rep in this instance was mistaken. All purchases on Shopping Express are made using Google Wallet, and we have no plans to use bitcoin as a payment method. As always, we're constantly listening to user feedback," the company told CNBC.

Jérôme

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Re: Bitcoin - Tópico principal
« Responder #109 em: 2013-10-19 03:33:13 »
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Shop at Walmart with bitcoin


The lives of people attempting to live solely on bitcoin just got much easier, at least in the US. ‘Social’ gift card seller eGifter has started selling cards for retail behemoth Walmart.

eGifter began accepting bitcoin at the beginning of October 2013, and in doing so opened up a new universe of mainstream purchasing options. The company already sells gift cards for over 100 retail outlets in a wide range of categories, including well-known brands like Barnes & Noble, Land’s End, Home Depot and CVS Pharmacy.

Even among people who have never set foot in one of their stores, Walmart is famous for selling pretty much everything at discount prices. Perhaps most significantly, bitcoin users will now be able to pay for groceries and gasoline in their favorite currency.

Membership-based retail warehouse Sam’s Club (a Walmart subsidiary) also accepts Walmart gift cards as payment, increasing options even further.

Buying gift cards with bitcoin for yourself and others has been around for a short while already, after competitor Gyft partnered with BitPay in May 2013 to sell cards for a range of stores including clothing and fast food, as well as Amazon.

“The ability to purchase daily necessities with bitcoin has been something of a holy grail for enthusiasts”

Other indirect payment options include bitcoincodes.com, which exchanges bitcoin for access to various online services like XBox Live, Playstation Network, Nintendo and AirVPN. Australian residents can use local service Bitcoin Gift Cards to buy, among other things, fuel and home supplies.

The ability to purchase daily necessities with bitcoin has been something of a holy grail for enthusiasts, and a lack of such options is often used by cryptocurrency naysayers to claim bitcoin isn’t mainstream enough for mass acceptance.

eGifter users can send gift cards and vouchers for over 100 US-based brands to others attached to e-cards and video messages. The recipient can either print off the coupon number or barcode, or display it on a smartphone using eGifter’s iOS or Android apps.

The company uses Coinbase to process transactions and does not charge any extra fees or markups to pay with bitcoin.

Logging into eGifter with Facebook, Google+ or LinkedIn allows users to import their contact lists to choose recipients. If you prefer not to link your social networks to other sites, it also allows you to sign up and send gift cards with email addresses only. Users can also purchase cards in groups with each contributor using different payment options, if they wish.

While electronic gift cards occasionally need to be explained to store employees, reddit users have reported no problems making purchases with the Walmart cards purchased with bitcoin via eGifter.





E jah vai nos 170 USD...


Jérôme

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Re: Bitcoin - Tópico principal
« Responder #110 em: 2013-10-21 10:13:36 »
E durante o fim-de-semana continuou a subir, jah vai nos 192.

 :o

JoaoAP

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Re: Bitcoin - Tópico principal
« Responder #111 em: 2013-10-21 11:33:33 »
O mais interessante é que começo a ver muitos sites a aceitar a moeda.
Não acreditei que isto se mantivesse.

Alguém aqui está a fazer moeda?

Incognitus

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Re: Bitcoin - Tópico principal
« Responder #112 em: 2013-10-21 11:45:33 »
Eu fiz uma vez para ver como era, mas mesmo com uma placa gráfica boa já não é competitivo - não vale a pena. A produção de moeda já é dominada por pessoas com hardware especializado.
"Nem tudo o que pode ser contado conta, e nem tudo o que conta pode ser contado.", Albert Einstein

Incognitus, www.thinkfn.com

Jérôme

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Re: Bitcoin - Tópico principal
« Responder #113 em: 2013-10-22 03:33:26 »
Jah me tinha referido a isso lah mais para cima:

Citar
7- Investir na produção de bitcoins em casa tornou-se muito caro, é um mercado muito competitivo que está em crescimento com empresas altamente especializadas que desenvolvem o seu próprio hardware (e por vezes também o vendem, algumas placas por preços exorbitantes).



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Bitcoin Mining Rush Means Real Cash for Hardware Makers

Bitcoin, the virtual money that exists only in digital form, is spawning a real-world hardware boom.

Created four years ago by a person or group using the name Satoshi Nakamoto, Bitcoin is a virtual currency that can be used to buy and sell a broad range of items -- from cupcakes to electronics to illegal narcotics.

The currency, used to buy and sell everything from electronics to illegal drugs on the Web, has surged to about $135, more than 10 times its value a year ago.

The rally has created a cottage industry of speculators eager to get their hands on Bitcoins, which can only be created digitally by using powerful computers to solve complex software problems. That has in turn boosted a market for high-powered machines, some costing more than $20,000 apiece, which are custom-made to unlock new Bitcoins in a process called mining, a nod to the excavation of minerals and metal ore.

“Mining can actually be quite profitable when miners are able to get their equipment in a timely manner, which is what keeps many of us looking for better, faster and cheaper hardware all the time,” said Andrew Korb, who set up a fund that buys systems to mint Bitcoins and shares the proceeds with investors.

Beyond investing in the currency, the speculation has extended to equipment manufacturers targeting Bitcoin miners and automated teller-like machines for cashing in or exchanging the currency. Startups such as Butterfly Labs Inc., KnCMiner AB and Robocoin Technologies say hardware sales have soared along with the price of Bitcoins.

Bloomberg


para artigo completo clickar no link do titulo.


A Bitcoin estah a ganhar muita popularidade principalmente na China, seguida dos Estados Unidos. Cheira-me que quando os prometidos fundos comecarem a negociar o preco vai subir ainda mais.

No entanto o volume ainda eh baixo.

Estive para entrar nos 120 e jah me arrependi de ter ficado quieto. Pode ser que tenhamos ainda uma queda acentuada (30-40%) mas tambem podemos nunca mais voltar a negociar abaixo dos 100USD.

O USD mais tarde ou mais cedo vai desvalorizar bastante e uma alternativa serah o BTC ou XBT como parece que vais ser o ticker.

Jah existem empresas que pagam os salarios em XBT, a Wallmart ja tem cartoes em XBT, a Baidu ja aceita pagamentos em XBT, nao tarda muito os cartoes de credito passam a ter a opcao de se pagar em XBT.

A PayPal odeia a Bitcoin, mas acho que a solucao para eles sera tambem aceitarem XBT. Se nao os podes vencer, junta-te a eles...

btcmb

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Re: Bitcoin - Tópico principal
« Responder #114 em: 2013-10-22 11:35:25 »
Ontem saiu um artigo interessante sobre um novo tipo de empresas que o Bitcoin poderá criar.

The real value of Bitcoin lies in economies that don’t yet exist

http://btcgeek.com/dawn-of-autonomous-corporations/
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jeab

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Re: Bitcoin - Tópico principal
« Responder #115 em: 2013-10-22 11:49:01 »
Ando admirado de ainda não ter aparecido por aqui um "artista" a querer vender algo relacionado com as bitcoin ...  8)
O Socialismo acaba quando se acaba o dinheiro - Winston Churchill

Toda a vida política portuguesa pós 25 de Abril/74 está monopolizada pelos partidos políticos, liderados por carreiristas ambiciosos, medíocres e de integridade duvidosa.
Daí provém a mediocridade nacional!
O verdadeiro homem inteligente é aquele que parece ser um idiota na frente de um idiota que parece ser inteligente!

hermes

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Re: Bitcoin - Tópico principal
« Responder #116 em: 2013-10-22 13:20:28 »
Ontem saiu um artigo interessante sobre um novo tipo de empresas que o Bitcoin poderá criar.

The real value of Bitcoin lies in economies that don’t yet exist

http://btcgeek.com/dawn-of-autonomous-corporations/


Negócios que ainda não existem... Parece-me que já vi isso em qq lado. Ah, foi aqui:

Citar
Some of these schemes were plausible enough, and, had they been undertaken at a time when the public mind was unexcited, might have been pursued with advantage to all concerned. But they were established merely with the view of raising the shares in the market. The projectors took the first opportunity of a rise to sell out, and next morning the scheme was at an end. Maitland, in his History of London, gravely informs us, that one of the projects which received great encouragement, was for the establishment of a company “to make deal boards out of saw-dust.” This is no doubt intended as a joke; but there is abundance of evidence to shew that dozens of schemes, hardly a whit more reasonable, lived their little day, ruining hundreds ere they fell. One of them was for a wheel for perpetual motion—capital one million; another was “for encouraging the breed of horses in England, and improving of glebe and church lands, and repairing and rebuilding parsonage and vicarage houses.” Why the clergy, who were so mainly interested in the latter clause, should have taken so much interest in the first, is only to be explained on the supposition that the scheme was projected by a knot of the fox-hunting parsons, once so common in England. The shares of this company were rapidly subscribed for. But the most absurd and preposterous of all, and which shewed, more completely than any other, the utter madness of the people, was one started by an unknown adventurer, entitled “A company for carrying on an undertaking of great advantage, but nobody to know what it is.” Were not the fact stated by scores of credible witnesses, it would be impossible to believe that any person could have been duped by such a project. The man of genius who essayed this bold and successful inroad upon public credulity, merely stated in his prospectus that the required capital was half a million, in five thousand shares of 100l. each, deposit 2l. per share. Each subscriber, paying his deposit, would be entitled to 100l. per annum per share. How this immense profit was to be obtained, he did not condescend to inform them at that time, but promised that in a month full particulars should be duly announced, and a call made for the remaining 98l. of the subscription. Next morning, at nine o’clock, this great man opened an office in Cornhill. Crowds of people beset his door, and when he shut up at three o’clock, he found that no less than one thousand shares had been subscribed for, and the deposits paid. He was thus, in five hours, the winner of 2000l. He was philosopher enough to be contented with his venture, and set off the same evening for the Continent. He was never heard of again.


in Memoirs of Extraordinary Popular Delusions and the Madness of Crowds, by Charles Mackay.
« Última modificação: 2013-10-22 13:21:02 por hermes »
"Everyone knows where we have been. Let's see where we are going." – Another

btcmb

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Re: Bitcoin - Tópico principal
« Responder #117 em: 2013-10-22 16:09:04 »
Ontem saiu um artigo interessante sobre um novo tipo de empresas que o Bitcoin poderá criar.

The real value of Bitcoin lies in economies that don’t yet exist

http://btcgeek.com/dawn-of-autonomous-corporations/


Negócios que ainda não existem... Parece-me que já vi isso em qq lado. Ah, foi aqui:

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Some of these schemes were plausible enough, and, had they been undertaken at a time when the public mind was unexcited, might have been pursued with advantage to all concerned. But they were established merely with the view of raising the shares in the market. The projectors took the first opportunity of a rise to sell out, and next morning the scheme was at an end. Maitland, in his History of London, gravely informs us, that one of the projects which received great encouragement, was for the establishment of a company “to make deal boards out of saw-dust.” This is no doubt intended as a joke; but there is abundance of evidence to shew that dozens of schemes, hardly a whit more reasonable, lived their little day, ruining hundreds ere they fell. One of them was for a wheel for perpetual motion—capital one million; another was “for encouraging the breed of horses in England, and improving of glebe and church lands, and repairing and rebuilding parsonage and vicarage houses.” Why the clergy, who were so mainly interested in the latter clause, should have taken so much interest in the first, is only to be explained on the supposition that the scheme was projected by a knot of the fox-hunting parsons, once so common in England. The shares of this company were rapidly subscribed for. But the most absurd and preposterous of all, and which shewed, more completely than any other, the utter madness of the people, was one started by an unknown adventurer, entitled “A company for carrying on an undertaking of great advantage, but nobody to know what it is.” Were not the fact stated by scores of credible witnesses, it would be impossible to believe that any person could have been duped by such a project. The man of genius who essayed this bold and successful inroad upon public credulity, merely stated in his prospectus that the required capital was half a million, in five thousand shares of 100l. each, deposit 2l. per share. Each subscriber, paying his deposit, would be entitled to 100l. per annum per share. How this immense profit was to be obtained, he did not condescend to inform them at that time, but promised that in a month full particulars should be duly announced, and a call made for the remaining 98l. of the subscription. Next morning, at nine o’clock, this great man opened an office in Cornhill. Crowds of people beset his door, and when he shut up at three o’clock, he found that no less than one thousand shares had been subscribed for, and the deposits paid. He was thus, in five hours, the winner of 2000l. He was philosopher enough to be contented with his venture, and set off the same evening for the Continent. He was never heard of again.


in Memoirs of Extraordinary Popular Delusions and the Madness of Crowds, by Charles Mackay.


No que toca a instrumentos para facilitar trocas tudo é uma ilusão, seja o Ouro, Euro, USD, Bitcoin ou outra qualquer coisa. O intuito final é mesmo a troca de bens ou serviços, não o instrumento. Em relação à especulação, pode ser critico... o Ouro correu mal, era uma moeda em que não havia incentivo para a gastar, no Bitcoin passa-se o mesmo.
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hermes

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Re: Bitcoin - Tópico principal
« Responder #118 em: 2013-10-22 18:29:33 »
No que toca a instrumentos para facilitar trocas tudo é uma ilusão, seja o Ouro, Euro, USD, Bitcoin ou outra qualquer coisa. O intuito final é mesmo a troca de bens ou serviços, não o instrumento. Em relação à especulação, pode ser critico... o Ouro correu mal, era uma moeda em que não havia incentivo para a gastar, no Bitcoin passa-se o mesmo.


Todos os males do mundo vieram de se usar o ouro como moeda [o que implica a componente transaccional] e a consequente quebra promessas, por este não ser expansível a la carte.

Não obstante os sonhos loucos dos socialistas do padrão-ouro, não estou a ver esse erro a tornar a ser cometido outra vez: à primeira, todos caem; à segunda, só cae quem quer; à terceira, só cae quem é burro. Não só seria a terceira vez, mas tb seriam necessários dois para se dançar esse tango, mesmo que um novo padrão-ouro fosse implementado... pois o ouro só fluiria no sentido dos privados. Ao fim e ao cabo, toda a gente já viu esse filme e quanto mais sequelas, pior fica. Já para não falar do coveiro do padrão ouro...

Por outro lado, quer gostes, quer não, ao contrário de todos os outros itens mencionados, o ouro tem valor intrínseco. Esse valor é outorgado por 2/3 da humanidade que está disposta a trocar produtos e serviços pelo seu entesouramento [ostentação e segurança] bem como pelos bancos centrais que o entesouraram para ostensivamente ganhar pó.

Ps. Quanto à alegada falta de incentivo para se gastar o ouro, isso não é um problema, desde que este não torne a ser moeda, pois o seu entesouramento não priva a economia do seu lubricante: as moedas transaccionais.
« Última modificação: 2013-10-22 18:36:57 por hermes »
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Jérôme

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Re: Bitcoin - Tópico principal
« Responder #119 em: 2013-10-23 00:35:56 »
As empresas que vendem hardware para minar nao tem maos a medir com as encomendas.

Por outro lado, quem compra o hardware para minar estah a perder dinheiro constantemente.

Existem dezenas de "fundos de mineracao" que estao com prejuizos crescentes, algumas jah faliram, outras para lah caminham.

Minar eh uma ilusao, julgo que soh mesmo quem produz o hardware eh que consegue ganhar alguma coisa com isso.

Muita guita jah evaporou com esse sonho...


Entretanto o BTC parece que entrou em parabolica, jah vai nos 203USD
« Última modificação: 2013-10-23 11:42:46 por Kerviel »