The role of future blockchain

1. blockchain technology has played an important role in the process of financial information transformation, whether it is digital currency, payment and clearing or financial transactions, intelligent contracts and even Internet finance, blockchain technology has a very broad application prospect< However, e to the lack of top-level planning and design, the development of blockchain instry is greatly restricted. However, blockchain technology is too professional and changes too fast, so it is difficult to issue accurate supportive policies in the short term. Relevant enterprises still need to explore themselves, constantly expand application scenarios, and promote the domestic blockchain instry to become bigger and stronger
in view of the bright future of blockchain, the capital has long been in the lead. According to the data of foresight Instry Research Institute, the scale of global blockchain venture capital has increased from US $2 million in 2012 to US $484 million in 2015, with about 205 venture capital institutions participating in it. The high capital fever can be seen. However, the blockchain instry is still in its infancy, and has not yet formed a unified specification and technical standards. At the same time, it lacks killer applications.

2. 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if you look at the problem with the thinking of 30 years ago, you will think that others are crazy, but in fact you are out of date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. In short, blockchain is a distributed and decentralized computer technology

what is distributed and decentralized? Take marriage registration as an example. In the past, when two people got married, they had to go to the Civil Affairs Bureau to go through the formalities, and then enter the information into the computer before they could finish the legal process. What if we use blockchain technology? As long as two people agree to get married, and then release a message in the circle of friends, the process of marriage is completed, and there is no need to go to the Civil Affairs Bureau. Your friends are common witnesses, they may be distributed all over the world, but their mobile phones will help you record the information and tell others who want to know

if you want to hide the marriage information, you used to just modify the records on the computer of the Civil Affairs Bureau, but now you have to modify the records on the mobile phones of all the people who know the truth at the same time. The more people who know the truth, the less likely they are to modify it, so it is an impossible task. This is distributed and decentralized

deepen the understanding

on the network, every once in a while, a block will be generated. This block is equivalent to a network logbook, which is used to record the relevant information that happened in a period of time. When the logbook is full, a new logbook will be generated. Once the information is recorded, all participants will be informed, and everyone's logbook will be updated synchronously

these logbooks are finally connected in series, which is blockchain technology. Because of the use of cryptography technology, if someone wants to tamper with the message unilaterally, through the verification of blockchain algorithm protection mechanism, if the time point is not right and the associated information is not right, other people will not update their own record book, and the information will be invalid

therefore, compared with the traditional information storage technology, blockchain technology is more secure, transparent and irreversible

concept differentiation

blockchain is not equal to bitcoin, it is just a kind of underlying technology invented to realize bitcoin as a digital currency. Blockchain can be applied to a wider range. In addition to digital currency, it can also be applied to P2P loan, global payment, micro finance, electronic payment, remittance and other financial aspects. It can also be applied to intellectual property, election, notarization and other aspects of people's livelihood.

4. Search: mining about how long back to the capital, how much money can make a year?

5. Sijimuge is the leader of the solar energy instry, but from 2014, sijimuge began to take a diversified strategy. At present, four seasons has been involved in many fields of business, such as solar energy, water purification, air energy, photovoltaic, kitchen appliances, bathroom hardware, etc. at present, the market share of various procts is very high. What you see should not be air conditioning, but air energy. This is a new type of water heater. It uses the heat in the air to heat the water. It's an energy-saving proct. The country is pushing it. It can save 75% of the electricity than the electric water heater. For details, you can go to the four seasons Muge store to consult.

6. Blockchain is a technical solution to maintain a reliable database collectively through centralization and distrust in the past. This technical solution mainly allows any number of nodes in the participating system to generate a series of data blocks by using cryptographic methods. Each data block contains all the information exchange data of the system in a certain period of time, and generates a data fingerprint to verify the validity of its information and link to the next database block
blockchain is a technical solution similar to NoSQL (non relational database). It is not a specific technology and can be implemented through many programming languages and architectures. There are many ways to realize blockchain, including pow (proof of work), POS (proof of stake), dpos (delegate proof of stake), etc
the Internet will make the global interaction more and more close, accompanied by a huge trust gap. At present, the existing mainstream database technology architecture is private and centralized, which can never solve the problem of value transfer and mutual trust. Therefore, blockchain technology is likely to become the next generation of database architecture. Through decentralization technology, we will be able to complete the great progress of mathematical (algorithm) endorsement and global mutual trust on the basis of big data
as a specific distributed data access technology, blockchain technology uses multiple nodes in the network to participate in the calculation and recording of data, and verifies the validity of their information (anti-counterfeiting). From this point, blockchain technology is also a specific database technology. The Internet has just entered the era of big data, but at present, big data is still in a very basic stage. But when we enter the stage of blockchain database, we will enter the era of real big data with strong trust endorsement. All the data in this is of indestructible quality, and no one has the ability or need to question it.

7. 1. Data blockchain is an important concept in the bitcoin financial system. It records the transaction data of the whole bitcoin network, and these data are shared by all bitcoin nodes. Through the data block, we can query the history of each bitcoin transaction
2. Example:
Party A, Party B and Party C. all funds of Party A and Party B are kept by Party C. Moreover, each capital transaction should be recorded by C. Now suppose that Party A and Party B each have one million yuan in their custody. Then:
If Party A spends 80000 yuan to Party B, then Party C will subtract 80000 yuan from the account book and increase 80000 yuan from Party B
If Party B returns 50000 yuan to Party A, Party C will add 50000 yuan to Party A's account book and subtract 50000 yuan from Party B's account book
If Party A spends 50000 yuan to Party B, then Party C subtracts 50000 yuan from the account book and adds 50000 yuan to the account book
3. The function of data blockchain is similar to that of C's account book, which records the ownership of bitcoin and the transaction of bitcoin. But this "account book" is recorded by every bitcoin miner's mining software on the network. If a bitcoin transaction is confirmed by the data blockchain, the relevant information will be recorded in the data blockchain. Bitcoin's "account book" is called data blockchain. All the data blockchains on the network constitute the distributed network database system of bitcoin
4. The essence of data blockchain technology is a decentralized and distributed data storage, transmission and proof method, which replaces the dependence of the Internet on the central server with data blocks, so that all data changes or transactions are recorded in a cloud system. In theory, it realizes the self proof of data in data transmission, This kind of point-to-point verification will proce a "basic protocol", which is a new form of distributed artificial intelligence. It will establish a new interface and sharing interface between human brain intelligence and machine intelligence.