History of blockchain ppt

1. blockchain has developed in five stages
1. Germination stage: the real germination stage of blockchain was from 2007 to 2009. In 2008, a Japanese American with the pseudonym of Nakamoto first expounded a new fantasy report on electronic money in the form of a synonym on the cryptography discussion group, and bitcoin came out. As early as 2007, Nakamoto began to explore a series of new technologies to create a new currency. On October 31, 2008, bitcoin white paper was released, and on January 3, 2009, bitcoin system officially began to operate
the main technologies supporting bitcoin system include hash function, distributed ledger, blockchain and asymmetric encryption; It can be seen that these technologies build the initial version of the blockchain, and it can also be said that the blockchain is the underlying technology of bitcoin. During the three years from 2007 to 2009, bitcoin was an experimental stage in which a very small number of people participated, and the real commercial activities had not really started
2. "Geek" niche stage: here, "geek" refers to people who are crazy about Internet technology and take technological innovation as fashion and life. On February 6, 2010, the first exchange of bitcoin appeared. On May 22 of the same year, someone bought two hamburgers with 10000 bitcoins. On July 17 of the same year, the exchange Mt. GOx was established, marking the official inflow of bitcoin into the market. Nevertheless, the only people who can really understand and enter the market to participate in bitcoin trading are geeks who are keen on Internet technology. They discuss bitcoin technology on the forum, mine for bitcoin on their own computers, and then buy and sell bitcoin on Mt. GOx. Now these geeks have become billionaires
3. Market brewing stage: the price of bitcoin was $13 at the beginning of 2013, but on March 18 of the same year, the government of Cyprus closed the bank and stock market e to the financial crisis, which made the price of bitcoin soar, and the highest price rose to $266 in April. On August 20 of the same year, the German government confirmed the currency status of bitcoin. On October 14, China network announced the opening of bitcoin payment channel. In November, the US Senate hearing also confirmed the legitimacy of bitcoin. On November 19, the price of bitcoin rose to US $1242, forming a new high. Nevertheless, the foundation for blockchain to enter the mainstream social economy is not yet available, and the soaring price of bitcoin is only e to over optimistic expectations. The containment of China's banking system, the collapse of Mt. GOx and other events made the price of bitcoin continue to fall. At the beginning of 2015, the price of bitcoin has dropped below $200. From 2013 to the beginning of 2015, the public began to understand bitcoin and blockchain
4. The mainstream period of blockchain: on June 23, 2016, the United Kingdom left the European Union, the fifth nuclear test of North Korea in September, Trump's election in November and other events, the uncertainty of the world's mainstream economy led to the recovery of bitcoin with the function of risk aversion. The market demand was large, and the increase of trading volume made the price of bitcoin soar from $400 in 2016 to $20000 in 2017, The wealth effect of bitcoin and the transaction overflow caused by network congestion of bitcoin have led to the outbreak of other series of virtual currencies, as well as a variety of blockchain applications, resulting in the emergence of a large number of blockchain assets that are 100 times, even 1000 times and 10000 times, which has aroused the crazy pursuit of the world, Subsequently, the Chicago Mercantile Exchange launched bitcoin futures trading, marking that bitcoin has officially entered the mainstream investment proct series, and bitcoin and blockchain have entered the global attention
5. Instry landing stage: after the market frenzy in 2017, the virtual currency and blockchain have been adjusted in terms of market, supervision, cognition, etc. in 2018, returning to rationality. In 2017, many blockchain projects that follow the blockchain technology will graally die out with the cooling of the market, and the projects with real blockchain applications will be initially implemented. 2018 is not only the first year of the blockchain, but also a gold rush period for the blockchain. After the waves wash away the sand, what remains is relatively good gold
from the perspective of the history of blockchain development, blockchain technology is not yet mature and is currently in the growth period. The specific practical application of blockchain is only used in the financial field. It still needs a long way to go to apply blockchain from other instries. However, we should grasp the trend of blockchain and actively learn from the new field of blockchain.

2. This concept was proposed in the white paper [1] of Nakamoto Tsung, who created the first block, namely "Genesis block"< On January 3, 2009, the founder of bitcoin, Mr. Nakamoto, left an unchangeable sentence in the genesis block:
"the times 03 / Jan / 2009 Chancellor on brink of second low for banks (on January 3, 2009, the chancellor of the exchequer was on the verge of implementing the second round of bank emergency assistance)."
at that time, the British Chancellor of the exchequer, darling, was forced to consider a second attempt to relieve the banking crisis, which was the headline of the front page article of the times that day
the time stamp service and existence proof of blockchain, the time generated by the first blockchain and the events that happened at that time are permanently preserved
BTCC, a bitcoin company, launched a service "Millennium chain" in 2015, namely blockchain lettering service, which is based on the above principles. Users can use this service to engrave text on the blockchain and save it permanently
bitcoin, Ruitai coin, Laite coin, dogcoin, Ethereum and other digital currencies will use blockchain technology.

3. The development of blockchain can be divided into three stages. Melanie Swann, founder of blockchain Science Research Institute, in her book blockchain: blueprint and guide to new economy, according to the application and development of blockchain, it can be divided into three stages: blockchain 1.0, 2.0 and 3.0< br /> 
I. blockchain 1.0 cryptocurrency era (2008-2013)
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in 2008, Nakamoto first proposed the concepts of bitcoin and blockchain, and then in January 2009, the first blockchain came out. At this stage, people pay more attention to the transaction of cryptocurrency, and blockchain is only used as the underlying technology to act as a "public account book"< br /> 
2. Blockchain 2.0 smart contract era (2014-2017)
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in 2014, & quot; Blockchain 2.0 "has become the pronoun of decentralized blockchain database. At this stage, people mainly focus on the application of the platform. Anyone can upload and execute the smart contract on the blockchain, and will be rewarded automatically after the execution. Because this transaction process does not need any intermediary, so people's privacy has been greatly protected< br /> 
III. blockchain 3.0 large scale application era (2018 -)
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at this stage, people begin to build a completely decentralized data network, and the application of blockchain technology is no longer limited to the economic field, but expanded to the fields of art, law, real estate, hospital, human resources and so on.

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5. Blockchain technology has a lot of applications in finance, and many characteristics make the future of the financial instry have a lot of imagination

for a single (domestic) central bank, bitcoin can be regarded as a "foreign exchange currency", and bitcoin will not be affected by the central bank's monetary policy. From this perspective, bitcoin is bound to bring about the so-called currency competition. When American tourists travel abroad, they will encounter the experience of exchanging foreign currency with unofficial exchange rate. The original intention of local people to exchange dollars may be to avoid the impact of high inflation (inflation tax)

if this kind of exchange can be "carried forward and widely used", the government's way of using inflation tax to increase fiscal revenue will be limited, and the traditional foreign exchange control will lose considerable effect. As long as there is Internet or telephone, people can use digital currency as the exchange medium<

challenge global currency status

although bitcoin is unlikely to replace the world's major currencies in the short term, bitcoin still has the opportunity to play a leading role in some specific occasions. The status of US dollar is obvious in many countries in the world, but the liabilities created by foreign banks under US dollar denominated deposits have brought jurisdiction problems. If the Bank of America further provides bitcoin denominated loans and accepts the redemption of bitcoin, what should the regulatory authorities do? In fact, there are similar signs in the euro dollar market today

in other words, at a time of financial crisis, if the market wants bitcoin deposits instead of US dollar deposits, then the central bank's status as "lender of last resort" in the traditional sense will be completely lost

acting as a safe haven asset

a safe haven asset does not mean a risk-free asset, but refers to the asset that investors are willing to pour in at a time of crisis. In the 1970s, real estate was a safe haven asset; In the 21st century, American debt has become a safe haven asset. Can bitcoin become the next key safe haven asset? The answer may be yes or no. But looking back on the dominant position of CUF in Hungary's mortgage loans in the time of the euro zone crisis, bitcoin obviously has a chance to become famous in the first World War: under the background of dollar inflation and bitcoin deflation, the US dollar / bitcoin exchange rate will plummet because the US Federal Reserve can't expand the supply of bitcoin

play the role of securities

in a perfect macroeconomic model, securities trading should be seamless. However, under the influence of monetary policy, the liquidity of OTC transactions of bonds is very poor. Even the ten-year US bonds with the best liquidity have had liquidity problems. Demand for good quality collateral, usually treasury bonds, has soared. If blockchain technology is mature enough, it is likely to bring billions of dollars of collateral supply to the market. Of course, lower demand for treasury bonds may lead to higher interest rates

maintain the stability of financial market

there is a view that the use of blockchain will lead to the withdrawal of global central banks from the stage of history. This possibility naturally exists, but in the short term, it is not too realistic - the central bank needs a lot of hard assets, such as real estate and human capital, to find liquidity carriers / media to completely retreat from the background

there is also a view that blockchain technology will make the financial market completely transparent, thus bringing a more robust financial system. However, it should be pointed out that the mainstream diamond and davige bank squeeze model does not rely on the opacity of the financial market. In theory, the bank's portfolio is completely transparent. But even so, unexpected large-scale redemptions can still cause problems in the financial system

the central bank's digital currency / cash

the current currency and payment structure were formed before the birth of the Internet. The world has changed dramatically, so people must learn to adapt. There is no reason to refuse the possibility of central banks providing digital currency. Before bitcoin, the U.S. Treasury provided online digital bond accounts. Although this kind of account is not used for payment system, it can be applied in theory

the digital account of the central bank has many advantages. First, depositors no longer need deposit insurance because there is no default risk in the central bank; Second, money managers who hold a lot of money can choose the central bank account as overnight deposit instead of shadow banking; Third, the cost of paper money supply will be completely eliminated; Fourth, it will be very convenient for the central bank to pay depositors' interest to facilitate the transmission of the central bank's monetary policy

practical application

Bubi blockchain has made a number of breakthroughs in the technical platform, which can meet the scenario of tens of millions of users, and has the ability to quickly build the upper application business. Bubi blockchain has been applied in equity, supply chain, points and other fields, and is concting experiments and application tests with exchanges and banks. As an integral application on Bubi blockchain platform, Shubei Hebao has been launched recently. Sunshine insurance, as the first large financial institution in China, issues blockchain integral (yangguangbei) on this platform, which is a good example for the landing application of blockchain technology in various instries

blockchain technology will have a profound impact on the financial instry and have an important impact in a long time. People will witness the profound changes in reality one by one.

6.

It is a set of data transmission system that can ensure the absolute accuracy of information recording

most of the articles on the market are either too professional and lengthy, or the use cases are too simple to understand accurately. I hope that within 10 minutes, I can help you thoroughly understand the concept of blockchain and establish a visual and accurate understanding in your mind

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