Canadians invent virtual currency
The concept of bitcoin was first proposed by Nakamoto on November 1, 2008, and was officially born on January 3, 2009. According to the idea of Nakamoto, the open source software is designed and released, and the P2P network on it is constructed. Bitcoin is a virtual encrypted digital currency in the form of P2P. Point to point transmission means a decentralized payment system
unlike all 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
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bitcoin network generates new bitcoin through "mining". In essence, the so-called "mining" is to use computers to solve a complex mathematical problem to ensure the consistency of bitcoin network distributed accounting system
to mine bitcoin, you can download the special bitcoin computing tools, register various cooperation websites, fill the registered user name and password into the computing program, and then click the operation to officially start
the bitcoin network is robust, but the bitcoin trading platform is fragile. Trading platform is usually a website, which will be attacked by hackers or shut down by competent authorities
Newsweek recently reported that after learning about Nakamoto's family and some bitcoin programmers, he found Nakamoto in San Bernardino, Southern California. He immigrated to California with his mother in 1959 and received a bachelor's degree in physics from Caltech
later, he changed his name to Dorian prentice<
according to the report, Nakamoto only vaguely admitted his connection with the bitcoin project, saying that he would no longer participate in the project, and refused to further discuss his relationship with the project
the report quoted him as saying: "the project has been handed over to other people, who are currently in charge of it and have no relationship with me any more."< However, in an interview with the associated press later, Nakamoto said that Newsweek misunderstood what he said. "What I said at the time sounded like I was involved in the bit project, but now it's gone. That's not what I wanted to say," he said. What I want to say is that I'm no longer involved in engineering. "
the bitcoin foundation is unwilling to confirm whether the report is true, saying that "there is no evidence to prove that the report's Mr. Nakamoto is the founder of bitcoin."
it is reported that if he is the founder of bitcoin, his wealth is expected to be as high as US $400 million (about S $500 million)
whether Nakamoto is really related to bitcoin or not, even his closest family members don't know. His brother Alto said: "he is very focused and has his own unique set of ideas. He's smart. He's good at math, engineering or computers
andreson, chief scientist of the bitcoin foundation, said that he and a man named "Nakamoto" discussed bitcoin online from June 2010 to April 2011, but they never talked on the phone, let alone met. "If you show up as the founder of bitcoin, now you have to come out and speak and comment on the media, which is not suitable for Nakamoto's personality," andreson told Newsweek.
The essence of money is the general equivalent. In the process of the continuous development and evolution of human history, it has gone through the stage of physical money, the stage of substitute money, and then entered the stage of credit money. In primitive society, people exchanged livestock, salt, shells and other hard to get goods as general equivalents
in the long history, the emergence of metal currency makes the economic life achieve unprecedented prosperity. However, e to the inconvenience of carrying metal money, paper money became the mainstream form of money. With the rapid development of modern information technology, e-money has come into our life
if the evolution process from physical money to value symbol paper money is the first qualitative leap in the history of money development, then the evolution process from paper money to electronic money is the second qualitative leap in the history of money development
from the perspective of money form, physical money itself is a commodity in addition to performing monetary functions; Paper money is a symbolic tool of value for commodity exchange and a credit currency; Electronic currency is the proct of highly developed Internet economy and continuous progress of bank payment and settlement technology. It not only has the function of traditional currency, but also can continuously improve digital currency
At the same time, the virtual money market based on electronic information is also booming. By the end of 2014, the number of Internet users in China had reached 632 million, including 517 million registered users in the online game market and 114.48 billion yuan of sales revenue, an actual increase of 37.7% over the previous yeara huge virtual space based on the Internet has been formally formed. As a kind of virtual currency with intrinsic value, convenient online trading behavior, low transaction cost, and service providers' issuance, it emerges as the times require
first of all, from the functional analysis. Virtual currency is a kind of transaction medium in the Internet virtual space, which has the function of value scale, but the value scale of virtual currency is different from that of legal currency
using virtual currency to purchase virtual procts and services can only be within the scope specified and allowed by the issuer of virtual currency (Internet operator), and the size of this scope depends on the number of virtual procts and services. If the virtual procts and services provided by the website are large enough, the scope of virtual currency will be large
the currency value of virtual currency depends on the pricing of virtual currency by issuers. When no currency can communicate between virtual cyberspace and reality, the pricing of procts and services is still based on real RMB. That is to say, when issuers of virtual currency price their own virtual currency, they should first convert the price of virtual currency based on RMB
in the case of hanging order transaction, the transaction will be made according to the price you give (if it can be done), and if the real-time price is the best, the real-time price will be used.
The currency used in Canada is called "Canadian dollar", abbreviated to the symbol C $. There are 5, 10, 20, 50 and 100 denominations in current Canadian banknotes. In addition, there are 1 yuan, 2 yuan and 5,10,25 mints. The current exchange rate is 1 Canadian dollar = 5.0507 RMB
The1 Canadian dollar coin was originally made of silver. It was also made of pure nickel since 1968. In 1987, it was made of nickel core plated bronze (ABS) with a dodecagonal edge. On the back is the white billed loon
The coins of2 Canadian dollars are inlaid with yellow and white bimetal, the outer ring is pure nickel, and the inner core is aluminum copper alloy. The pattern on the back is polar bear face
The original silver coin was made of copper nickel alloy (white copper) in 1982. The pattern on the back is a beaver The coin was originally made of silver and was made of pure nickel since 1968. The back of the coin is a three masted fishing boat with sails The coin was originally made of silver and has been made of pure nickel since 1968. There are four patterns on the back of the coin, one of which is a caribou
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anti counterfeiting of Canadian dollar banknotes
there is a vertical bar holographic security film on the left side of all the latest Canadian dollar banknotes. The discolored maple leaves and the face value of banknotes can be seen from different angles
on the right side of the hologram bar, the Bank of Canada in English and French can be seen under the purple light, as well as the number of face value (the printing is weak, so you need to see it clearly in the dark and with a high power purple light), and the whole banknote is full of fluorescent fibers
the number of face value on the front and many other microprints
in the middle of the white watermark window, you can see the face watermark of the main character and the white watermark of the face value
on the right side of the watermark window, there are two-sided printing patterns of face value numbers, and the two-sided patterns of banknotes can be seen by focusing light to form face value numbers
on the left side of the back, you can see the window color changing anti-counterfeiting line with the words can printed on it. At different angles, the color of the anti-counterfeiting line changes between green and yellow
James Gosling, born in Canada on May 19, 1955, is a software expert and one of the co founders of Java programming language. He is generally recognized as "the father of Java"<
James Naismith (English: James Naismith, November 6, 1861 - November 28, 1939) is the inventor of basketball and the first person to advocate the use of helmets in American football. He is also the first basketball coach who assembled five players to form a team. Naismith was born in Almont, Ontario, Canada. He was the eldest son of a Scottish immigrant family who came to Canada to work in mining in 1851<
Thomas Leopold Wilson is a Canadian inventor<
Thomas Leopold Wilson is a Canadian inventor<
Thomas Leopold Wilson is a Canadian inventor.
Ming coin and paper money
Ming coin is used to salute ghosts and gods in folk sacrifice and for the dead in funeral and tomb sweeping. This custom of burning paper money originated in the northern and southern Wei and Jin Dynasties and flourished in the Tang and song dynasties