Global bitcoin
There are only 21 million bitcoins
"graphics card mining" is a joke. In fact, it is running a specific algorithm to generate bitcoin through a large number of calculations
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extended materials:
the concept of bitcoin was first proposed by Nakamoto in 2009. According to Nakamoto's idea, the open source software was designed and released, and the P2P network on it was constructed. Bitcoin is a kind of P2P digital currency. Point to point transmission means a decentralized payment system
unlike most currencies, bitcoin does not rely on specific currency institutions. It is generated by a large number of calculations based on specific algorithms. Bitcoin economy uses the distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses the design of cryptography to ensure the security of all aspects of currency circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to 21 million
bitcoin can be cashed and converted into the currency of most countries. Users can use bitcoin to buy some virtual items, such as clothes, hats and equipment in online games. As long as someone accepts it, they can also use bitcoin to buy real-life items
on February 26, 2014, Joe Manchin, a Democratic senator from West Virginia, issued an open letter to a number of regulatory authorities of the US federal government, hoping that the relevant authorities would pay attention to the status quo of bitcoin's encouraging illegal activities and disrupting the financial order, and demanded that actions be taken as soon as possible to completely ban the electronic currency
from 12:00 noon on January 24, 2017, China's three major bitcoin platforms officially began to collect transaction fees
Let's start with a simple conclusion: a year ago, the data showed that there were about 500000 BTC
two American brothers, Cameron winkleworth and Taylor winkleworth, claiming that they owned 1% of bitcoin [1] 1% of the world's bitcoin? At present, the total amount of bitcoin in the world is about 12 million, that is to say, the two brothers hold about 120000 bitcoins< maybe you don't think it's worth much, but note that the starting price of bitcoin for these two people is less than $10 / bitcoin
Please note that entities are used instead of people. In the analysis method of this paper, bitcoin wallets that may belong to the same owner are divided into the same entity, which may be not only a person, but also a trading organization like Mt. GOx in addition, through the analysis of the most active entity table given in this paper, the income of the people with the most income (excluding expenses) is less than 700000 BTC. In other words, the person with the most bitcoin will hold no more than 700000 bitcoins. How many people in the world own bitcoins? The paper concludes that as of May 13, 2012, 1.85 million entities hold bitcoin. If we assume that bitcoin users have grown linearly since the advent of bitcoin (January 2009), the current number should be 2.5 million. Because the number of entities is counted on paper, the actual number of bitcoin holders should be a little less than this number, but not much smaller, because after all, there are not many large trading platforms
In addition to the above two problems, [3] also gives many interesting conclusions, such as: < UL >about 55% of bitcoin can be saved without money
in places like GOx mountain, almost all deals are small ones
before May 2012, almost all large single transactions (& gt; 50000 BTC) are subsequent transactions of 90000 BTC on November 8, 2011. There are very strange patterns in this long list of transactions. For example, an entity divides 90000 BTCs into different sizes, sends them back to itself three times, and then sells them on Mt. GOx. 90000 BTCs sold are sent back to the entity through 90 different bitcoin addresses, with 1000 bitcoins per address. These operations indicate that the entity appears to be trying to hide the relationship between these transactions
take bitcoin as an example. Every 10 minutes, all the miners work out a math problem together. Whoever works out the answer first is equivalent to digging into the block and taking it as a reward to get the corresponding bitcoin. Mining equipment is the first to use computers. With the rising price of bitcoin, more and more people participate in mining. CPU mining has graally turned into a professional graphics card. In recent years, it has become a specific mining machine. This evolution is e to the problem of computing power. As I said just now, mining means "all miners work out a mathematical problem together." the higher the computing power, the stronger the hardware computing power and the faster the speed
warm tips:
① this information does not constitute any investment suggestion, and investors should not use this information to replace their independent judgment or make decisions only based on this information
2. Investment is risky, so we should choose carefully. Before making any investment, you should make sure that you fully understand the nature of the investment and the risks involved in the proct. After a detailed understanding and careful evaluation of the proct, you can judge whether to participate in the transaction
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the two definitions have slightly different emphases. The scope of electronic currency is determined by the form of storage, while the "virtual" of virtual currency focuses more on "unregulated" and "virtual community". Therefore, according to the two dimensions of storage form and issuing body, there are different ways to classify e-money. From the perspective of issuers, this paper classifies e-money into three categories: the electronic form of traditional money, centralized e-money and decentralized e-money
the electronic form of traditional currency is most well known and widely used, including savings card, credit card, e-bank account, third-party payment, and other forms of electronic value accounting in traditional currency units. Among them, the savings card is equivalent to a check deposit or current deposit electronic account that provides the service of deposit and withdrawal at any time and payment by credit card. When a savings card is used for payment and settlement, the funds are transferred from the cardholder's account to the payee's account and do not flow out of the banking system. Credit card is a kind of credit payment, the balance of the cardholder's credit account is usually zero or negative. When the cardholder withdraws and consumes the money through the credit card, the issuing bank first advances the money, and then the cardholder completes the repayment within a certain period of time. Compared with bank card, Internet banking and third-party payment break away from the dependence on card media, and complete a series of functions of currency with the help of Internet information system and cryptography design. The above forms of electronic payment do not directly change the credit source of the money in the account, but have a certain impact on the cost structure, risk factors and the structure of money demand of the monetary system
the existing centralized e-money can be divided into closed system and one-way flow currency. The typical representative of closed system currency is online game currency. Game players use game currency to buy game props in the community, but game currency cannot be used and exchanged outside the community. One way currency refers to the electronic currency that can be exchanged directly through traditional currency. This kind of currency can also be used to complete transactions in virtual communities, such as Q currency. From the source of credit, the central currency can be regarded as a kind of commercial credit, and its monetary value depends on the credit rating, operation status and profit expectation of the issuers
decentralized e-money refers to the e-money without the credit support of specific issuers. In the existing examples, bitcoin is "issued" by all indivials and institutions participating in the operation of bitcoin algorithm through P2P network nodes. Therefore, the number and speed of bitcoin proction are jointly determined by the algorithm design and the number of people participating in the algorithm operation. Although the definition of virtual currency in the report of the European Central Bank contains the description of "unregulated", the reality is that bitcoin is still regulated by monetary authorities. Compared with the electronic currency mentioned above, the anonymity of bitcoin is more prominent, which is closer to cash.