Research on bitcoin Technology

1. On November 1, 2008, a self styled Satoshi Nakamoto posted a research report on a secret cryptography discussion group. The report expounded his new idea of electronic currency bitcoin came out
on January 3, 2009, Nakamoto g up the first batch of 50 bitcoins on a small server in Helsinki, Finland
on May 21, 2010, the first bitcoin transaction: Laszlo hanyecz, a Florida programmer, bought a $25 pizza coupon with 10000 BTC
on July 16, 2010, the price of BTC rose by US $0.08 from US $0.008. The first sharp price fluctuation shows the rise of new things
on July 17, 2010, the first bitcoin platform was established
on November 6, 2010, the price on mtgox reached $0.5, and the bitcoin economy reached $1 million
on December 7, 2010, the first portable device to portable device transaction was realized on Nokia 900, with a transaction volume of 0.42btc
on February 9, 2011, the price reached US $1 for the first time, which is equivalent to US $1. The news that BTC is equivalent to us dollar has been widely reported by the media, which has aroused people's great attention, and the number of new users has increased greatly. In the next two months, bitcoin and pound sterling, Brazilian currency, Polish currency exchange trading platform has opened
on March 18, 2011, the BTC / USD exchange rate hit a seven week low, falling to US $0.7
on August 20, 2011, the first bitcoin conference and World Expo were held in New York. Among Google trend counties, bitcoin's attention reached a new high, with a price of $11 at that time
on November 14, 2011, the price of bitcoin hit a new half year low of $1.99
on September 15, 2012, the bitcoin conference was held in London. At this time, the price of bitcoin was $11.8
on September 27, 2012, bitcoin fund was founded, and the price of bitcoin was $12.46
on November 25, 2012, the first bitcoin conference in Europe was held in Prague, Czech Republic. At this time, the price of bitcoin was $12.6
on February 19, 2013, bitcoin client v8.0 was released. At this time, the price of bitcoin was $28.66
on April 10, 2013, BTC set a record high price of $110
on May 9, 2013, BTC Chinese, the largest bitcoin reporting website www.sosobtc.com The company obtained the investment fund Union Square's US $5 million round a investment, and the price of bitcoin was US $112.09 at this time< On May 28, 2013, the Department of Homeland Security banned the virtual currency service of Liberty Reserve, a Costa Rican exchange company, for its suspected xiqian and unlicensed fund transfer business, U.S. prosecutors said that this will become the largest international xiqian lawsuit in history, with the scale of absorbing money reaching 6 billion US dollars. A large number of users, including China, will lose all their money. At this time, the price of bitcoin is 128 US dollars
in June 2013, Netcom said that the United States will withdraw from qe3, deflationary bitcoin and quantitative easing monetary policy, which are the relationship between the two
on June 27, 2013, the German Conference made a decision: holding bitcoin for more than one year will be tax-free, which is considered by the instry to recognize the legal status of bitcoin. At this time, the price of bitcoin is $102.24
on June 28, 2013, mtgox obtained the monetary service license issued by the financial crime enforcement network office of the U.S. Department of the Treasury. Transaction standardization may mean that bitcoin is on the right track, government risk is reced, and its pace of integration into the display economy will be accelerated. At the same time, it will play an exemplary role in other virtual currencies. At this time, the price of bitcoin is $97.99
on November 28, 2013, the bitcoin trading price of Mt. GOx, a popular bitcoin exchange, broke through $1000, reaching a record high of $1073
on November 29, 2013, the trading price of bitcoin on Mt. GOx, a popular exchange, hit a record high of US $1242, while the price of gold was US $1241.98 an ounce, surpassing that of gold for the first time.

2.

The concept of bitcoin was founded by Nakamoto

On December 12, 2010, when bitcoin graally became a hot topic, he quietly left and disappeared from the Internet

As a descendant of samurai, Nakamoto was born in 1949 in Beppu, Japan. His mother, quanzi, was a Buddhist and brought him up in poverty

When his parents divorced in 1959, Nakamoto's mother remarried and immigrated to California with her three sons. Nakamoto and his stepfather don't get along well, but according to his younger brother Arthur, Nakamoto showed his talent in mathematics and science when he was very young, but also showed his "fickle and strange interest"

Nakamoto graated from Caltech, majoring in physics. Upon graation, he joined Hughes Aircraft and worked in defense and electronic communications. Later, Nakamoto worked for the U.S. military, and his experience was classified as a state secret. Now searching his files, his life is a blank

In 2008, in an e-mail group discussing information encryption on the Internet, he published an article outlining the basic framework of the bitcoin system. In 2009, he established an open source project for the system, officially announcing the birth of bitcoin. On December 12, 2010, when bitcoin graally became the climate, he quietly left and disappeared from the Internet

3. Bitcoin is different from the previous currency, it completely relies on the Internet to create and trade; Bitcoin's unique technical attributes lead to its economic and cultural attributes beyond the present currency. Bitcoin is a kind of electronic currency proced by open-source P2P software. Compared with the paper currency in circulation, the biggest feature of bitcoin is decentralization and global circulation in the network world, followed by high security and high confidentiality. These technical attributes further extend to the economic attributes of no inflation, no freezing, and no man-made supply; In terms of culture, bitcoin is popular among anarchists and liberals. The advantages of bitcoin are artificially exaggerated, and its anti inflation and anti inflation functions cannot stand up to scrutiny. In the long run, the prospect of bit is hard to match that of gold. In the most optimistic case, it will become a means of payment in some areas; But in the short and medium term, bit still has room for speculation and imagination. In addition, the use of bitcoin in some sensitive areas highlights the increasingly prominent role of information in national security
1. The advantages of bitcoin are exaggerated: About decentralization, no transaction costs and anti inflation
it is true that bitcoin has various advantages over paper money, but these advantages have been over interpreted. First of all, bitcoin is a kind of decentralized currency, which will not have the same risk of central bank controlling money supply and affecting market value as paper money; Bitcoin is mainly held in the hands of large investors, and the market depth is not enough. At present, the trading behavior of large investors is also very easy to affect the price of bitcoin. Even if the attribute of decentralization is regarded as the advantage of bitcoin when it is fully mature, then the prerequisite of holding decentralization should be added. In addition, there are great differences between centralized and decentralized online payment systems in the degree and type of financial risks they are exposed to
secondly, the low transaction cost of bitcoin is not without transaction cost. On the contrary, e to the increasing difficulty of bitcoin mining and the further stability of currency value, the dependence of relevant transaction platforms on transaction cost will increase, which will certainly increase the transaction cost. Finally, the confidentiality of the bitcoin transaction needs to be discussed. The principle of the bitcoin transaction makes all the processes of each bitcoin transaction stored in each machine. If someone can determine the real background of a transaction, they can find all the transactions down and up through these data
compared with other advantages, anti inflation or anti inflation is the most publicized advantage. Although its supply is stable and the upper limit of supply is locked according to its algorithm, unless the whole world is unified and all countries use bits as currency, it can not prevent the over issuance of money only as a means of payment or a storage of value, just as the current existence of gold can not constrain the growth of each country's currency. If bits can only be used as a means of payment in local areas (such as the network), then global or some countries' inflation will still be transmitted to the areas where bits are used. Therefore, the use of bits to prevent inflation is basically untenable, or has a strong premise. As for anti inflation, that is to say, it has the function of value storage, it needs to have the property similar to gold. However, from the reality, bit's essential property and prospect are still hard to match gold. See below for details
2. Bitcoin's future positioning is too high
the expectation of bitcoin's future in the market generally compares it with gold and US dollar, which is relatively high. The recognition of gold not only lies in its natural physical properties, but also in its official acceptance as a reserve currency (or an important allocation of foreign exchange assets). In theory, bitcoin as an electronic currency does not have the unique and exclusive status, and it is more difficult to become the official reserve of central banks like gold. Therefore, it is not appropriate to expect too much bit. As an electronic currency, bit has the first mover advantage. If it can be guaranteed in terms of security, its most optimistic prospect will be as a means of payment in local areas
3. Speculation and speculative demand caused by event factors are the main reasons for the rise of bitcoin in this round
under the credit currency system, people's lack of confidence in the currencies of various countries and pessimistic economic prospects are the general environment for the rise of bitcoin in this round. The speculation of the major dealers in the market and the derivatives market of bitcoin, together with the speculative psychology of the participants, further accelerated its rise. Btcchina's investment of US $5 million and the announcement of Ben's position are the main driving factors for the recent surge
however, a lot of big players start to enter the market and buy a lot, which not only drives the bit price up to a high level, but also increases the market risk. Chamath, a former Facebook executive, has spent $5 million on bitcoin and plans to spend another $10 million. Bitcoin investment trust also exceeded its target within four weeks, raising $15 million. These people's investments not only make bitcoin further rise, but also concentrate on the holding of bitcoin, which strengthens the influence of indivials and institutions on the price of bitcoin and increases the market risk
4. There is still strong room for speculation in the medium and short term
although our previous analysis is not optimistic about the prospect of bit, it is likely that bit will still have strong room for speculation in such a short and medium term period of time as one year. As mentioned in the previous analysis, the creators of bitcoin advocate that the generation of bitcoin is not manipulated by human factors, which is quite different from the credit currencies of various countries. We expect that the monetary policies of major countries will be divided next year. With the release of economic risks and the heavy damage to traditional asset markets, bitcoin will have better room for speculation and imagination< The use of bitcoin in some sensitive areas highlights the increasingly prominent role of information in national security
the U.S. government seized the drug trading website "Silk Road" at the beginning of last month. A crowdfunding network called "assassination market" even marked the sale of murderers with bitcoin price. The founder of the assassin market, under the pseudonym of kuwabatake Sanjuro, is an extreme anarchist. Both prism gate incident and the use of bitcoin in relevant sensitive fields highlight the increasingly prominent position of information field in national security. The Third Plenary Session proposed the establishment of the national security committee, which will play an important role in China's security strategy and expand from traditional national defense, stability maintenance / urban security to information security and other emerging areas

4. The total number of bitcoin is 21 million. It was g up in 2140, and the mining speed has been halved in four years. At present, more than 13 million bitcoins have been mined. Bitcoin was invented by a man named Nakamoto, who disappeared in the bitcoin circle after 2010. No one knows who this person is
bitcoin is used for graphics card mining, which was possible before, but now there is almost no profit from using graphics card mining. Of course, if your electricity is free, it's OK. The graphics card mining you mentioned is the second stage of bitcoin mining. The first stage is mining with CPU, which is an ordinary computer. The second stage is the graphics card mining you mentioned, commonly known as burning graphics card. At present, it has entered the third stage of ASIC mining machine mining stage. In this stage, the computing power is very high, the mining income is very low, and the mining cost is almost close to or even more than the currency price. At present, the profit of large-scale mining mainly depends on the energy consumption of mining machine and the advantage of electricity price.

5. I think bitcoin is a relatively limited resource in the eyes of bitcoin, so it's not too late, but it may be a pit.

6. Blockchain. The following is a detailed introction of bitcoin from AEX exchange coin network:
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 built. 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 of P2P and the algorithm itself can ensure that it is impossible to artificially manipulate the value of bitcoin by mass manufacturing. 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 goods, such as clothes, hats and equipment in online games. As long as someone accepts it, they can also use bitcoin to buy real-life goods.