Current situation of blockchain

1. blockchain is the biggest trend in the next decade
if you look at the problem with the thinking of 30 years ago, you will think that others are crazy, but in fact you are out of date
the concept of blockchain can be traced back to the end of 2008. In the forum, a mysterious personage named "Nakamoto Tsung" published a paper "bitcoin: a peer-to-peer e-cash system" and proposed the concept of blockchain for the first time
on January 3, 2009, the first block of the blockchain was born, which is called the "Founding block"
almost with the birth of blockchain technology, bitcoin became the first thing to play its role. In the following years, bitcoin graally swept the world. In 2017, its crazy market made blockchain technology known to all
the idea of blockchain first appeared in the famous bitcoin open source project. In the process of its birth and development, bitcoin project draws on the technical achievements from digital currency, cryptography, game theory, distributed system, cybernetics and other fields. It can be said that bitcoin project is good at all. As its core supporting structure, blockchain technology is a remarkable innovation achievement
blockchain is a distributed database system with different nodes, which is an open ledger system<
three characteristics of blockchain
compared with the traditional centralized scheme, blockchain technology mainly has the following three characteristics:
the core idea of blockchain is decentralization
in the blockchain system, the rights and obligations between any node are equal, and all nodes have the ability to vote with computing power, Thus, the result recognized by more than half of the nodes is guaranteed. Even under serious hacker attacks, as long as the number of nodes controlled by hackers does not exceed half of the total number of nodes in the world, the system can still operate normally and the data will not be tampered with
block chain's biggest subversive is the establishment of credit
the collective maintenance of blockchain can rece the cost
in the centralized network system, the maintenance and operation of the system depend on the operation and operation of platforms such as data center, and the cost cannot be omitted. Anyone can participate in the nodes of the blockchain. Each node can verify the correctness of the results of other nodes' records while participating in the records, which improves the maintenance efficiency and reces the cost
in a word, blockchain touches money, trust and power, which are the fundamental basis for human survival< Its development has gone through three stages
1. Brewing period: from 2009 to 2012, bitcoin and its instrial ecology are the main economic forms
2. Embryonic period: from 2012 to 2015, with bitcoin entering the public view, new wallet payment and remittance companies appeared, and blockchain economy spread to the financial field. The underlying technology of blockchain is constantly innovated. Blockchain technology is separated from bitcoin system
3. Development period: in 2016, we began to explore instry applications, and a large number of blockchain start-ups appeared. The popularity of ICO in 2017 has given blockchain unprecedented attention
"blockchain 2.0 era" is coming
the application service layer is the driving force for the sustainable development of blockchain, which is divided into three stages of application: 1.0, 2.0 and 3.0
programmable currency: blockchain 1.0 application
programmable currency is the digital currency represented by bitcoin, but it is not the legal tender of any country or region, and there is no government authority to provide guarantee for it
programmable Finance: blockchain 2.0 application& quot; Smart contract& quot; Using program algorithm to replace the concept of contract execution. This enables blockchain to expand from the original monetary system to the registration and transfer of equity, creditor's rights and property rights, the transaction and execution of securities and financial contracts, and even the financial fields of gambling and anti-counterfeiting
programmable Society: blockchain 3.0 application
blockchain is the core of value Internet, which can confirm, measure and store the property rights of information and bytes representing value in each Internet. It can not only record the transactions of the financial instry, but also record almost anything valuable that can be expressed in the form of code. Its application can be extended to any field with demand, and then to the whole society
at present, the application of blockchain has begun to surpass bitcoin (blockchain 1.0), enter the era of blockchain 1.5, and transition to the financial field (blockchain 2.0)
in the next 3-5 years, blockchain may go beyond the financial field and enter the field of social notarization and intelligence (blockchain 3.0), including identity authentication, notarization, arbitration, audit, domain name, logistics, medical care, mail, visa, voting and other fields. Its application scope will be expanded to the whole society, and blockchain technology is likely to become a new technology& quot; All things are connected& quot; It's the lowest level protocol
at present, blockchain technology has been recognized by the world, and its development has become an inevitable trend. Accompanied by more people's attention, "in the next 30 years, new technologies will be integrated into all aspects of traditional instries, and human society will turn upside down. No matter who you are, no matter where you are, all of us will be a part of this great change."
this is the current situation. Blockchain has given the post-90s an opportunity. However, if you want to control blockchain technology without being affected by negative factors, the most important thing is to have a clear understanding of it, whether it is regulators, researchers, speculators or bystanders
it's time to devote more energy to blockchain technology
in China, the average annual salary of blockchain positions has reached more than 300000, and that of some enterprises has reached more than 1 million. The monthly salary of blockchain instry graates in Beijing, Shanghai and other places has exceeded 20K! If the post-90s seize the bonus of the times, they may become the next Alibaba in the future! If you miss it, you may regret it for ten years.

3. Since blockchain will become the future development trend, blockchain technology has its own advantages over traditional technology
1. Decentralization
the core advantage of blockchain technology is that it does not need a traditional centralized organization, and does not rely on the point-to-point transaction, coordination and cooperation of a credit center in the distributed system, so as to avoid the common problems of data security, collaborative efficiency and risk control of centralized organizations
2. High security
in blockchain technology, data is difficult to tamper with. Anyone can access the database that records transactions. In this transparent and open mode, everyone can act as a supervisor. We can see at a glance what changes have taken place in the data, which is more secure than traditional technology
3. More reliable
the blockchain technology is connected by multiple nodes in different places. The nodes in the blockchain interact through the point-to-point communication protocol. Under the condition of ensuring the consistency of the communication protocol, different nodes can be processed by different developers using different programming languages and different versions of the whole node
in short, when a node encounters network problems, hardware failures, software errors or is controlled by hackers, the operation of other participating nodes and systems will not be affected
therefore, blockchain is more reliable than traditional technology
therefore, I firmly believe that the application of blockchain must be the development trend in the future.

4. The distribution method and handling charge of different mines are also different. If you have enough money, bold enough or stupid enough, I think it's better to buy a few hundred tons of calculation and dig it by yourself.

5. Theoretically, the block reward that can be generated every day is zd12.5 (number of rewards per block) * 6 * 24 (6 blocks per hour, 24 hours per day) = 1800btc. Bitcoin network gives out one block every 10 minutes on average, and the reward for each block is currently 12.5. At the earliest time, 50 BTCs were awarded to each block within the block. After 210000 blocks were g out, the number of BTCs was halved, about once every four years. It is expected that the next halving will be in May this year, when the reward for each block will become 6.25. There is a special exchange for buying bitcoin. It is suggested to go to okex exchange in China. The security is great.

6. The ways to obtain bitcoin are as follows:
as a payment method for goods or services
buy bitcoin on a bitcoin exchange
exchange bitcoin with people near you
earn bitcoin through competitive mining
participate in the platform and get a gift from the platform.

7. Preface to the interpretation of Finance
(2014-10-13 08:05:31)
label:
miscellany

Finance is the promoter of human civilization
if there is no division of labor, human beings may still be wandering in the age of slash and burn cultivation. Therefore, the first part of Adam Smith's great book, an inquiry into the nature and causes of the wealth of nations, is about the principle of division of labor. He fully affirms the contribution of division of labor to the improvement of labor proctivity
however, without the emergence of money, division of labor is impossible. Because division of labor means the inevitability of exchange, and if the success of exchange is not mediated by money, but by direct barter exchange, then the success of exchange can only depend on luck. Money makes the exchange smooth and smooth, so the division of labor can be expanded, and the proction efficiency and technological invention can be accelerated
many things are so common that they don't feel important. Such as air, water and sunshine, as well as the love of relatives, are often ignored, but they are of great importance. The function of money as a unit of valuation is just like this. If it is not priced in currency, the "price" of each commodity will be expressed by the exchange ratio with each other. With the increase of the number of commodities, the price will be innumerable and the transaction can not be concluded. Money makes each commodity have only one price, so the exchange is much easier
another example is insurance. If there is no insurance, sudden changes of indivials and families, whether natural or man-made, may cause the tragedy of family destruction. However, with insurance, allowing a large group of people to share the losses of indivials and families can, to a considerable extent, alleviate the pain of tragedy and rece social shocks, so that society can move forward as usual. Insurance is a moral thing, isn't it
for example, the initial function of futures market is to stabilize the cost of procers. Without the futures market to lock in the cost of proction, proction can only be intermittent, and social life will not be stable. With the futures market, procers can focus on the proction itself and disperse the risk of cost changes to the financial market. Isn't that serving the people
everyone knows the importance of the University. For hundreds of years, the university has been the main inheritor of human civilization, as well as the main source of new knowledge, new technology and new civilization. However, just as religious places need donations to survive, the University also needs a steady stream of huge financial support
the first-class universities in the United States, including Harvard University, Yale University and MIT, all have foundations, have considerable financial assets and employ financial experts to take care of them. Without high salary, masters and famous professors, how can they condescend to preach and teach in these private universities? It's the old yellow calendar. Without capital investment, how can a magnificent building and so many excellent students enjoy the best higher ecation in the world? Keynes, the great economist, used to work for the Cambridge foundation
many people always think that only hard-working and hard-working can be valuable. Such as farming, such as working, such as manufacturing, in short, it is a real thing. Finance, a virtual instry, does not create value. This is a serious misunderstanding
I often say that hard work, sometimes to avoid more hard mental work, is a kind of real laziness. There is no real instry in the world. Even farming requires seeds, pesticides, chemical fertilizers, farming techniques, and soil improvement. All of these can not be achieved by "sweating down the soil", but by science
it's very easy to simply make one thing. China is now the center of global manufacturing. But what to make and how to make it? But not the manufacturer has the final say. Apple mobile phones (iPhones), though mostly made in China, are just assembly. Its R & D and design are not in China, and the main profits are not in China. This is because the manufacturing is too simple. The assembly line workers just repeat a few actions. We will, and others will, such as Mexicans, Vietnamese and Brazilians, but R & D is something that a few talents can do. Apple's mobile phone is a gifted and epoch-making proct
it is impossible to create a new world only by exerting great efforts, sweating and repetitive manual operation. All the labor that can create a new world is the work of scientists who seem very relaxed on the surface. And behind science is investment. For example, research on new procts and new technologies costs a lot of money. Who dares to spend money on something that sounds unreliable and unlikely to succeed, such as Steve Jobs' iPhone idea? Just like the real people, how can they be willing to invest in these strange ideas. But some people dare. These are venture capitalists
Silicon Valley in the United States has bred many world-class high-tech enterprises, such as apple, Intel, HP, Facebook, Google, Oracle, Cisco, etc. with them, today's human life style is very different. But behind these leading enterprises, there is the support of venture capital
Keynes has demonstrated this point incisively for a long time. He said that economic prosperity is not determined by proction (supply), but by demand, and the key to demand is investment demand. Without banks and financial markets, investment would be greatly inhibited. In fact, the prosperity of social undertakings, such as the film instry, is not so? Hollywood blockbuster is popular, but it's made of money
Finance is a kind of system
no matter in the past coinage, or later paper money and electronic money, they are not "real things". They have little value in themselves, but they can leverage and replace those "real things" that are much bigger than themselves. It's because money is trustworthy. The foundation of trust is the power of system
exchange comes from people's inner needs, and the essence of money is only a means of transition, a lubricant, and an idea. Therefore, it is not necessary to use real things. Therefore, the government, with its coercive force, stipulates that people must accept it. Therefore, paper money is a kind of institutional arrangement
the bank is also a system. Modern commercial banks, not only deposit and loan institutions, but also create new and large amounts of money under the guidance of the central bank through the partial reserve system. Money in an economy is not mainly printed, but proced out of thin air. On the surface, it's a trick, but it's a real trick to improve people's welfare. Because the financial society tells you, sometimes just a little more money, your life will really be better, magic bar
most people have deposits, but others have loans, such as mortgage loans. People who go to the bank for loans are wise. Even your best friend, brother and sister, is willing to lend you hundreds of thousands of yuan to repay in decades? I'm afraid I can't, because borrowing money has turned many friends and relatives into enemies. But the bank is willing to lend you, let you pay back slowly! Mortgage is a system of mutual encouragement and restriction
the original meaning of finance is the flow of funds. Since the emergence of money as the main form of wealth, there have been surpluses (potential suppliers) and deficits (potential demanders). Rich people are not necessarily good at making money, but those who are good at finding opportunities for making money are not necessarily rich. Without banks, the demanders and suppliers of funds would never know each other in their lifetime even if they were looking for each other blindly. Generation after generation of life and desire, in the waiting disappeared
the bank is the organization to realize the dream and the magic wand of the fairy. With banks, lenders and borrowers will no longer have to go around and find banks. The bank promotes the communication between the surplus and the deficit, and realizes the "finance". How many people are successful in their career, from nobody to wealth and celebrity, because of this magic wand
interest rate is also a system. The demanders and suppliers of funds exchange cash flow between the present and the future. How to balance the supply and demand or make both sides achieve their wishes? It depends on interest. The function of interest is to suppress demand and encourage supply. When the interest rate rises, the demand will fall and the supply will rise; If the interest rate falls, the demand will increase and the supply will decrease. Therefore, there must be an interest rate that both parties are satisfied with, that is, the equilibrium interest rate, so as to balance the lending relationship
the stock market is also a kind of institutional arrangement, and investors' investment funds cannot be refunded. How can this be accepted? Investors can participate in the general meeting of shareholders, receive dividends and dividends, and transfer shares in the secondary market. Listed companies must disclose information on time. By these, in exchange for long-term financial support from shareholders, then listed companies can do business with long-term plans
how important is the financial system!

8. I think blockchain is developing vigorously in the country, but many digital currencies are cheating.