区块链心得体会500字左右,区块链心得体会1000

在这个信息爆炸的时代，区块链作为一种新型的技术手段，已经迅速走进了我们的视野，它的出现带来了许多新的可能性。我们可以从以下三个方面来深入了解区块链的特点：去中心化、加密安全性以及智能合约。

去中心化是区块链的核心特点，它采用了分布式账本技术，把数据分布存储在不同的节点上，没有任何中心控制，每个节点都可以拥有数据，这样就不存在单点故障的情况，从而保证了数据的安全性。此外，去中心化还可以解决信息不对称的问题，从而促进数据的公开透明，消除交易双方的信任问题。

加密安全性是区块链技术的另一个特点，它采用了公钥加密技术，把数据进行加密，从而保证数据的安全性。此外，区块链技术还采用了哈希函数，把每一个区块的数据都做成一个唯一的指纹，从而保证了数据的完整性。

智能合约是区块链技术的另一个重要特点，它是一种基于区块链技术的自动执行的合约，可以把交易过程的所有细节都写入合约中，从而保证双方的权益。此外，智能合约还可以解决信息不对称的问题，从而促进数据的公开透明，消除交易双方的信任问题。

综上所述，区块链技术是一种新型的技术手段，其特点有去中心化、加密安全性以及智能合约，它的出现为我们带来了许多新的可能性，未来的发展前景十分广阔。

请查看相关英文文档

㈠ Reborn from the ashes, the spring of blockchain has not yet arrived

Text/Meng Yonghui

Blockchain is approaching us in a new way. This is my new judgment recently. Different from the previous evasive and cover-up methods, today’s blockchain appears more and more confident. In the final analysis, it is still the blockchain that has found its value and meaning, so the blockchain will be as orderly and confident as it is now.

So, what is the value and significance of blockchain? I believe that the greatest value and significance of blockchain lies in its application, and it is a real application. Those who simply deeply bind the blockchain with currency issuance or ICO without exploring more real-value applications of the blockchain will only bring the blockchain into a more dangerous situation. .

Different from the early technology that blindly overdrafted the blockchain, the current implementation and application pay more attention to the collaboration of technology and application. Develop collaboratively and look for more development possibilities related to blockchain. Whether we focus on applications or technology, they are actually telling us that blockchain is returning to an objective and rational development track. If we use a metaphor for the development of blockchain, the current market situation is more like a vibrant early spring.

After catastrophe, the blockchain is reborn

Described as having experienced catastrophe Blockchain is not an exaggeration at all, but perhaps it is precisely because the blockchain has experienced so many difficulties and challenges that it can show more of its vigorous vitality. At present, blockchain is gradually getting on the right track, and practical actions are telling us that blockchain is not a fleeting concept, but a new species that can truly bring disruptive changes to people's production and lives. Only by looking at it objectively and rationally can the functions and effects of blockchain be maximized.

In the beginning, people’s understanding of blockchain was simple, superficial, and eager for quick success. Everyone just regarded blockchain as a It is an existence similar to the Internet. Financing and collecting money through blockchain are the key reasons why many players are clamoring for blockchain. Although this method can allow people to quickly understand the blockchain, it only looks at the blockchain from a marketing and conceptual perspective without delving into the essence of the blockchain. The so-called blockchain is just a concept. Just a gimmick.

What is certain is that just in such a rush for successA hasty approach cannot truly promote the healthy development of the blockchain, and may even lead the development of the blockchain to a dead end. Later developments also proved this for us. However, thinking about it conversely, wouldn’t the development of blockchain become more mature if it had not gone through such a tortuous process? Is this stage a stage that the blockchain will inevitably go through?

In fact, if we look at the blockchain from the current situation, we will find that it is very necessary to go through an early development stage, and it is also Very timely. It is after experiencing such a development stage that we can have a more in-depth and comprehensive understanding of the blockchain, and the blockchain can truly return to its essence. Now, isn’t the rational and objective state of the blockchain market we see the most authentic and concrete manifestation?

On the other hand, we also need to see the other side of the blockchain through this phenomenon. That is to say, blockchain is not a concept derived from the Internet, but it does have its own connotation and meaning. It is precisely because of its unique connotation and significance that it can get out of the quagmire and truly start to move towards the avenue.

When many people look at the connotation and significance of blockchain, they always compare it with the Internet and think that it is contrary to the Internet. Development logic is the key to the blockchain experiencing nirvana and achieving rebirth. As a result, many people regard blockchain as the gravedigger of the Internet, and even view it from the opposite perspective. Although there is some truth to this view, it would be too simple and arbitrary to look at the connotation and significance of blockchain with such a superficial and superficial logic.

The author believes that the greatest connotation and significance of blockchain does not lie in its contradiction or opposite to the Internet model, but in its relationship with the Internet. Data transmission methods, transmission capabilities and underlying logic are different. This is the key reason why the blockchain has experienced many disasters and can still rise from the ashes.

Why do you say that? The reason is that the evolution from the IT era to the DT era has still become a trend and trend. How to reconstruct and recreate data is the key to truly opening up new developments for people. From a business model perspective, we do want to subvert the Internet-based business model. However, from the underlying logic, we want to change the data transmission methods that have been formed in the Internet era, improve the data transmission capabilities of the Internet era, and reconstruct the formation of the Internet era. conventional business logic.

The reason why blockchain falls and climbs again and againOne of the important reasons is that it can bring a completely different experience from the Internet in terms of data transmission methods, transmission capabilities and business logic, not just that its business model is different from the Internet. Therefore, this is the key reason why blockchain can truly be reborn, and can truly continue to fall and rise again.

The spring is cold and the blockchain is moving forward

For the blockchain , the coldest season is still over, but this does not mean that the spring of blockchain has arrived. The reason why the development of blockchain is picking up now is just because players no longer regard blockchain as a way and means of issuing coins or ICO. It is far away from the true maturity and the true blockchain. There is still a long way to go in spring.

If you use one word to describe the current blockchain market, "cold spring" is the most appropriate word to describe it. Why use "spring is cold and the weather is sharp"? Because although people's understanding of blockchain has begun to be objective and rational, and the general direction of blockchain's return to implementation and application has been determined, it is an indisputable fact that blockchain technology is immature and rudimentary.

When the blockchain begins to regard implementation and application as the main direction of development, however, we are unable to deliver a steady stream of energy to the blockchain. , the so-called development may be just a short-lived and unsustainable flash in the pan. Therefore, for the current blockchain industry, we still have to carry forward the burden and achieve its development and improvement through the accumulation and breakthrough of technology.

For the blockchain industry, it is necessary to find a way to achieve breakthroughs in blockchain technology and find innovative strategies for the implementation and application of blockchain. It is more long-term than just relying on the improvement of the blockchain market and continuing to follow the old path. If we must find the development direction of blockchain in the next stage, using technology as a breakthrough point and constantly seeking ways to break the situation may be the key.

Obviously, if the development of blockchain only stays on traditional technology, it will not be able to truly If we look for breakthroughs in terms of innovative technology, then the blockchain may still have a long way to go before it matures and truly replaces the Internet and becomes the "infrastructure" of the DT era.

Fortunately, we have seen some new trends in the blockchain industry. For example, the emergence of NFT; for example, the continuous increase of open source communities; for example, the continuous improvement of algorithms... These new trends are telling us that blockchainThe development of the chain industry is moving in the right direction.

However, these are not enough. If the blockchain wants to truly replace the Internet and become the "infrastructure" of the DT era, and if it wants to truly build a new business world, it will need more technical capabilities and more innovation capabilities. When we truly find the correct development posture of blockchain and can truly use new ways to promote the development of blockchain, the so-called blockchain can achieve true nirvana and rebirth.

Conclusion

The blockchain has bottomed out again and again. Nirvana and rebirth again and again prove to us their strong vitality. Similarly, the blockchain has been reshaped again and again to explain to us the reality that its era has not really come. However, we also need to see the vigorous vitality of the blockchain itself from such a trend.

The cold winter that really tested the blockchain has gradually gone away, but the real spring of the blockchain has not really come. What we need is to look at blockchain from a more objective and rational perspective, and what we need is to find ways to implement and apply blockchain with more in-depth and comprehensive thinking.

When we truly make a breakthrough in the development of blockchain from the underlying technology, when we truly find the real business of blockchain implementation and application Model, the development of blockchain has truly ushered in a blossoming spring. When this moment comes, the blockchain we know may no longer be the one-sided and isolated existence we see now, but has become a multi-dimensional and comprehensive existence.

At this time, the era of blockchain has truly arrived. Blockchain can truly become a substitute for the Internet.

—End—

Author: Meng Yonghui, senior writer, columnist , special commentator, industry research expert, strategic consultant. He has been focusing on industry research for a long time and has published more than 4 million words of financial and technology articles. Sharing that retains the author's source is supported. Please retain the author's copyright information when reprinting. Violators will be prosecuted.

㈡ Looking at the future from the perspective of blockchain - community (1)

"This article is supported by the Bihu (bihu.com) high-quality content plan"

I joined the first hobby community on the Internet in 2008. At that timeThe main carrier is the forum, the SNS platform built by the forum, plus QQ group and Waiwai Voice, to complete the operation of the entire community. At that time, I also became a forum moderator and organizer of some activities out of pure interest. Since 2013, I have started to join various paid communities and participated in some community activities. Since 2017, I have joined many blockchain communities due to my exposure to blockchain.

My own experience can be summarized as an original ecological community - a paid Internet community with operational awareness - a blockchain-related theme community. The third category seems a bit abrupt here, since blockchain is a theme here, not a new paradigm. The reason why I divide it this way is because I think these are three completely different stages of community development, but I think the third form of the community will emerge from blockchain-related topics. Currently, blockchain is in these communities It is only used as a theme rather than a form because it is still in its infancy, and most blockchain-themed communities have not really begun to think about the value and significance of the blockchain + community.

The basic composition of blockchain + community, I think the core consists of these parts:

I say: All tokens must form their own community. It may actually be implemented. At the same time, the Internet community will gradually begin to be tokenized. And because there is almost no better token issuance technology than blockchain, the next development form of the community must be the blockchain community.

At the same time, the blockchainization of the community will not only be reflected at the token level, but its distributed characteristics will also become more obvious, because it is difficult for small and beautiful centralized communities to emerge as groups. The value of a new type of organism is completely different from one level. I think the community will go in different directions. One is the centralized community endorsed by the soul figure. The other is the distributed community where the mechanism or basic protocol itself forms the basis of consensus. There is also another one, which may be the soul figure. As the consensus basis for cold start, it is ultimately the basic protocol that implements the multi-center distributed community.

A community under the blockchain is actually very similar to a virtual country in nature. It is highly recommended that students who are interested in this area study political systems, economic systems and online games.

[Keyword 1: Consensus]

Consensus is actually the foundation of all communities, and to a certain extent, it is also a barrier. On the one hand, it provides basic value recognition for community members, thereby clarifying the voluntary prerequisites for all members; on the other hand, it also gives community members clear specific goals for participation., so community members will naturally adjust their participation. (It is very, very important to be able to clarify specific goals)

(BTW, in fact, this is why I think that almost all pure tokens have no value at present - among thousands of virtual currencies, BTC/BCH As a pure encrypted digital currency, there is already a consensus basis; as basic chains such as ETH/EOS, everyone also has a consensus on them, and even many communities have been formed around them; BTS has been implemented in applications although its value may not be fully exploited. have also obtained corresponding consensus; but most of them only issued white papers and did not have any user/community-based tokens. In fact, they are really just air coins)

[Keyword 2: Basic Agreement]

Or, rules.

From a macro perspective, the basic agreement is the fundamental reason for the emergence of results. Each ant and goose in the ant colony or wild goose formation does not need to know how the whole will develop or how each person will arrange it. Instead, as long as he knows how far and what distance is from each companion around him, the whole will naturally emerge. form.

From a micro perspective, basic protocols/rules allow each community member to clarify their own path to achieve their goals in this community. Just like in a game, players have rules and restrictions on how to achieve game goals, and the entire game becomes playable. Players also begin to have their own strategic thinking and explore unknown possible spaces.

Therefore, the design of this basic protocol will be quite a test of time, how to be minimalist while aligning self-interest with the benefit of the group - please do not simply understand it as group rules.

[Keyword 3: Tokens]

When communities combine tokens, there will be three completely different results from the past - duality of membership & Pareto improvement acceleration & feedback mechanism.

The so-called duality of membership refers to the integration of consumption and investment - community members are both users of the community's products and investors of the community. At this time, every member no longer thinks purely as a consumer, but as a shareholder, as a real owner. Therefore, every decision he makes, every communication and transaction within the community will have different consequences. The same strategy and behavioral logic will eventually form a community that is completely different from the logic of consumers. The stickiness, participation, positive interaction and even output value of community members will also have the opportunity to reach different heights relying on this logic.

The so-called Pareto improvement refers to improving the total value of the overall equity without reducing one party’s equity. The acceleration of this type of improvement is due to the explosion of equity circulation. The convenience of token-based value circulation inside and outside the community (this must be based on the premise that the token has a secondary market) creates a state of frequent transactions, thus enhancing the activity and value creation density of the entire community. As mentioned in the previous article, any transaction must be an optimization and improvement that both parties believe to be their own rights and interests, so frequent transactions mean an improvement in the overall rights and interests. (In addition, there is also an academic discussion on whether the transaction itself creates value, which will not be stated here. ). Combined with the duality of community membership, members not only become consumers, but also investors, which leads to two results: 1. Transaction volume will be more frequent than pure consumption without investment, thus optimizing the overall equity value; 2. People are more cautious about investment than consumption, so the transaction will optimize the overall equity value of the community to a higher level than consumption. In short, please believe in the invisible hand of the market, and please also consider the impact of the token mechanism on the market inside and outside the community.

The so-called feedback mechanism is determined by the quantification of tokens. Every senior game player must have a deep understanding of how important the feedback mechanism is. It gives people the motivation and excitement to continue playing. (In fact, this is also the reason why some people think starting a business is more fun than working - starting a business can also be quantified and give relatively real-time feedback. This is reflected in the fact that starting a business has a progress bar, how much is the valuation, how much has it increased, how much is the ranking, etc. Market share, etc., and even if individual work has achieved breakthroughs in certain aspects, it is difficult to quantify, and it is even more difficult to obtain real-time feedback. It is even more out of reach to expect salary income to reflect it.) In the community, the value of tokens Being highly quantifiable enables real-time feedback. The equity attribute of the token itself and the tradability attribute in the secondary market determine that this is a completely different concept from the stimulation intensity of feedback from the general community in the form of points. If the entire community can have such feedback stimulation, then the vitality of the community is likely to be as good as that of various popular online games - this is a token, not a Q coin!

This article discusses the meaning of blockchain + community in theory, so in the follow-up (2), what will be discussed is the methodological issue - how to build such a blockchain + community . It is recommended that every community organizer who already has his or her own community foundation can consider the transformation of the community's blockchain direction as soon as possible.

Welcome to make suggestions and discuss.

㈢ Thoughts on savoring GCB

I was delighted to hear the news last night that GCB Global Payment has begun to set sail, and each platform plans to open its gates to release water. Crazy, tossing and turning, unable to sleep at night. More than a year of following and tasting, I think GCB is a book. It's a painting. is a song. It’s even more of a poem.

――GCB is a difficult book to read. At first, I only knew that Genius Global Payment GCB was an Internet platform engaged in Internet finance. I didn’t know or understand what GCB was? What is blockchain? What is a decentralized ledger? What is a global standard for decentralized ledgers? What is the underlying architecture? What is a smart contract? ...Monk Zhanger couldn't figure it out. He followed Chairman Li Hao to learn registration and proper nouns, and listened carefully to Chairman Li Hao's sharing in every class. There is no other way. Since I have chosen it, I will follow the big army, put all my energy into interpreting this book, and bite the bullet slowly.

――GCB is a magnificent painting. After slowly savoring it, I feel more and more that GCB is a grand blueprint created by Chairman Li Hao over ten years of hard work. This is the Chinese dream he wants to realize. It is a super aircraft carrier that subverts the Internet and a revolution from the information Internet to the value Internet. And GCB Global Payment is just a small application in the blockchain. It has firmly tied the Internet giants to the aircraft carrier of the giant blockchain, and worked hard to realize a community with a shared future for mankind and create a fair and just value chain. Alibaba is just an insignificant small customer of Global Payments. GCB Global Payment is a payment artifact that can realize point-to-point, end-to-end seamless docking of global trade, and seamless cross-border customs clearance of global finance. It is a high degree of integration of legal currency to digital currency transfer. It is a second-hand payment and low-cost payment all over the world. Divine coin. The application of GCB Global Payment can cover all aspects of social production and life. It is all-encompassing and profound, and is the greatest invention in human history! It is the melting pot of Chairman Li Hao’s wisdom. Through learning, not only knowledge is increased, but also knowledge is increased.

――GCB is a beautiful song. The blockchain was Bitcoin in its previous life, but it is GCB in this life. And BTC=GCB=traffic, this is a story that ordinary people can’t imagine and can’t understand. As Chairman Li Hao said, as long as the Internet exists, GCB, the sacred currency, will last forever and will be remembered in history. Chairman Li Hao has been sharpening his sword for ten years. He has never forgotten his original intention and remained determined. He has formulated a China plan, created a Chinese brand, and contributed Chinese wisdom to mankind. Today, all the results will be displayed in front of the world. It is a song and a cry! What an honor it is for us to be able to follow Chairman Li Hao!

——GCB is a majestic epic. The global payment blockchain is a great initiative unprecedented and unprecedented. It is a great cause that will benefit the country and the people for a long time. It creates a payment artifact that is equal to everyone, everyone is the master, and everyone is a bank. It is a big platform that uses traffic to write the future. Epic is a platform for you, me and others to get rich. As long as the waterwheel operation mode is up and running, our family members around the world will enjoy wealth that you have never been able to obtain in this life. Family and friends, take active actions. As long as you taste GcB Global Pay carefully, you will enjoy endless blessings and endless love. Countless money. Let us unite and make money to buyCoins, those who have no money are shouting, and old members will not buy or drink and sing "The Same Song" well. As long as I study hard, keep up with the pace, and actively promote Global Payment, we will definitely get rich returns!
Understanding the Blockchain” Thoughts after listening to the book

Actually, I have heard about blockchain before, and also heard about Bitcoin. At that time, many people made a lot of money and became rich overnight. Even now, there are still many belated people who want to join the blockchain. , fantasizing about making a fortune "for nothing".

But after the "Li Xiaolai Bitcoin Scam" incident broke out in 2018 (it seems), it had a huge impact. I actually liked Li Xiaolai quite a lot (because he is the idol of Uncle Cat, whom I admire) ), but because I didn’t understand Bitcoin at the time, I couldn’t understand the ins and outs of the entire incident (I didn’t want to be guided or incited by various public opinions).

Until today when I listened to the book "Everyone Understands Blockchain", I have a little understanding of blockchain, but after all, it is still relatively one-sided. I can only record the thoughts it triggered here. After all, It doesn’t matter what the knowledge is, what’s important is the thinking it triggers, right~

First of all, after listening to a brief introduction to blockchain, I remembered a video I watched before - Use it in the future Likes can be exchanged for money to buy things. See the video below for details (if you can’t see it, you can ask me for it).

I personally understand that blockchain and Bitcoin are actually a manifestation of value, but they are not as valuable as likes. After reading this book, I found that the blockchain has a permanent quota of 21 million, which means that this thing is scarce (that is, devaluation is unlikely). It depends on how everyone obtains value and trades value. .

Secondly, blockchain has four innovative technologies, which are actually consistent with what I think will be its future value.

The first is asymmetric encryption technology - which means it is very safe and cannot be easily cracked;

The second item is distributed ledger - which can be roughly understood as not affecting your value just because a certain platform collapses (when I invest by myself, except for banks, I am particularly afraid that the collapse of the investment platform will affect funds) ;

The third item is smart contracts - as long as the representatives meet specific requirements, they will strictly implement the contract (basically replacing the work of lawyers, and there will be no need to argue in the future);

The fourth Item is the consensus mechanism.

Then, whether you are investing in blockchain or stocks, you need to fully understand what you are investing in and be sure of your own judgment before doing it (I once analyzed stocks in order to invest in them) I read the company’s annual report and the analysis was very broken).

A blockchain project is like a company. Before investing in this company, you must first at least understand what the company does. The details are as follows:

First, look The legality of the project;

Second, read the white paper analysis;

Third, the project’s needs and application scenarios;

Fourth, the project Product model, user volume and user experience;

Fifth, how well the blockchain community is maintained, how many users there are, and whether they are active.

Sixth, whether there is a dedicated team to manage the market value of currency prices, the composition of the project team and consulting team, and whether there is past successful experience.

…………

Therefore, I personally recommend that people who are good at stocks play blockchain, just like entering advanced games. If you don't even understand the advanced ones, you will inevitably be "cut off".

Finally, I actually like the design logic of blockchain 4W1H, which is Why, Who, Where, How.

Why refers to the significance and value of this project.

Who refers to who can participate in this project.

Where refers to where to participate and circulate.

How refers to how to bring value continuously and stably.

In fact, for projects in enterprises, it is necessary to first clarify the 4W1H of the project in order to operate better.

The above are my thoughts after listening to this book. Maybe my understanding is one-sided, but as I said before, the important thing is not the knowledge, but the thinking caused by the knowledge.

Of course, if you have any misunderstanding, you are welcome to correct me~ Let’s work together and grow together.

㈤ After reading this article, you will have a thorough understanding of the blockchain

In this article, I introducedAll the contents are facts that have happened in the field of blockchain in today's world, not some imagination or opinions about blockchain. I think that as long as you read this article carefully, you will easily have a basic and accurate understanding of blockchain.

The main content of understanding blockchain in just ten minutes is divided into four sections. 21 topics and 4 sections are:

The first national strategy for blockchain.

Second, Bitcoin and its literal representation involve four topics.

Third, blockchain and its technical logic involve 13 topics.

Fourth, blockchain empowers the economy and society, involving three topics.

Let’s first look at the first part of the blockchain national strategy, the first part of the blockchain country. Everyone knows that we humans have experienced six information revolutions. Seven or eight years ago, the first information revolution created primitive language, social tacit understanding, and the second information revolution saw the emergence of writing. The third information revolution in feudal society invented papermaking and printing, and the fourth information revolution in the late 19th century invented radio.

In the fifth information revolution of the 20th century, television appeared again, and now in the sixth information revolution, computers and the Internet have appeared. The emergence of computers and the Internet has given rise to the rapid development of various new technologies. Especially in 2020, the digital economy has experienced epoch-making development.

Why do you say that? The characteristics of high bandwidth, low latency and large connections in the 5G era have enabled the implementation of the four major technologies of ABCD.

What are the four major ABCD technologies

The a here refers to Artificial Intelligence, which is artificial intelligence technology.

B refers to Blockchain, blockchain technology.

C refers to cloud computing cloud computing technology

D refers to big data technology.

The word blockchain is now completely popular all over the country. On October 25, 2019, the Political Bureau of the Central Committee of the Communist Party of China announced the development of blockchain technology. The current situation has been collectively studied, so the requirement of this meeting is to use blockchain technology as the core technology.

As an important breakthrough for independent innovation, it is necessary to accelerate the innovative development of blockchain technology and industry. On April 20, 2020, the National Development and Reform Commission officially included blockchain into new infrastructure. Blockchain, why do you think it is?How can he be so awesome? Let us say that blockchain is not an extension of the Internet, it is a subversion of the Internet. In the future, many, many technologies will grow on this blockchain and realize blockchainization.

So, how can we accurately learn and understand the blockchain?

We found that among the four major technologies of ABCD, only the block is naturally built-in It's financial. Therefore, we must learn and understand blockchain from the IT perspective and the financial perspective, and even learn and understand blockchain from the level of national governance. If you only study and understand blockchain from an IT perspective, it is impossible to understand the huge influence and influence of this technology. Then, your understanding of this will be biased. Even more, you may disapprove of blockchain technology. In addition, in the process of learning about blockchain, you should also pay attention to the fact that it has many new terms, so you need to concentrate on understanding it step by step.

Let’s first understand blockchain from a financial perspective.

Bitcoin and its birth performance

To understand the blockchain, it involves Bitcoin, and what about the birth of Bitcoin? , and it is inseparable from the evolution of currency. We know that currency is a special commodity that is separated from commodities and serves as a fixed general equivalent. In fact, we humans have used a lot of currencies, including physical currency, weighing currency, paper money, accounting currency, etc. As for accounting currency, it includes electronic currency and digital currency. Electronic currency itself is not a currency. It is just used to represent the same amount of currency. It is a token.

Then the total amount of his tokens will not increase due to the increase of electronic currency. Alipay, WeChat, payment, and online banking are typical electronic currencies. As for digital currency, it is itself a legal currency. The total amount of this fiat currency will increase with the increase of digital currency. We know that when it comes to physical currency, we humans have actually chosen many things as general equivalents.

Weighing currencies are some heavy metals. Later, people chose gold among the heavy metals. Why choose gold? Because gold has the characteristics of rarity, divisibility, and the most stable chemical properties. What needs to be noted here is gold. It is not issued by any country. It is provided by nature. of. Your country's total amount is as much as nature provides. Therefore, the country does not need to provide credit guarantees for the value of gold.

But, as for gold, it has some flaws in its use, and it is difficult to carry when you go out again, so what?The disciples appeared. Paper money appeared in the Northern Song Dynasty. At that time, paper money was not currency in the current sense. The currency at that time was still gold, but we used paper money to represent gold. We called it the gold standard. The gold standard is the gold standard, which is a monetary system with gold as the standard currency. The core essence of the gold standard is that how much currency a country issues should be decided based on how much gold your country has. It does not mean you can issue as much currency as you want.

At that time, the Great Depression of the United States reached January 10, 1934. On this day, the newly elected President of the United States made a very important decision to abandon the gold standard and issue 3 billion US dollars. Think about it, abandoning the gold standard, in theory, means that he can issue as much currency as he wants. Even if there is no gold in the treasury, he can issue banknotes as long as he wants to. Then someone will ask, if you issue so many words, can you still exchange them for gold of equal value?

Look at the banknotes at this time, they have been separated from gold, and national credit has emerged. , this, we call it currency guaranteed by national credit. Now, when mainstream countries issue currency, they also issue it with national credit as a guarantee.

What are the benefits? The advantage is that it can regulate the economy. When the economy is not doing well, a little more hair can drive economic development. The increase or decrease in this variable will cause a chain reaction of the entire economic aggregate. This is the multiplier effect in economics. Once a country masters this thing, some countries will be fascinated by it. But if it is not well controlled, it will lead to national credit bankruptcy. As a result, many people began to reflect. This reflection is, when issuing currency, is it better to use national credit as a guarantee, or is it better to stick to the gold standard based on the total amount of gold. This question involves the birth of Bitcoin

㈥ How to understand the blockchain

Nowadays, technological development is changing with each passing day and the situation is turbulent. If you and I are a little lazy, we may be out. No, the new "hot internet celebrity" - blockchain is here. Since the beginning of this year, blockchain has become one of the hottest knowledge points in the technology world, and it has become increasingly dazzling in fields such as digital finance, Internet governance, and big data computing.

Blockchain technology also has broad application prospects in the military field and is very likely to quietly subvert future wars.

This is not Xiaole bragging. "In matters involving the three armed forces, nothing should be more important than secrecy." We must know that in the future information battlefield, confidentiality is the key to determining the outcome of a war. Because the blockchain system has many characteristics such as information independence, confidentiality and integrity, it can achieve the perfect combination of data storage and data encryption. It is also extremely resilient after being attacked, able to protect highly sensitive data and win theWinning the war helped a lot.

According to the information collected by Xiaole, some countries are currently planning to build a blockchain information platform and have begun to study the application potential of blockchain in several scenarios such as military satellites and nuclear weapons; a certain International organizations are currently evaluating the performance of blockchain technology in military logistics, the Internet of Things and other fields.

If digital currencies such as Bitcoin are blockchain 1.0 applications, then the "smart contracts" that provide strong guarantees for the security of network transaction data are blockchain 2.0. There will be 3.0 in the future - from DAO (blockchain self-consistent organization), DAC (blockchain self-consistent company) to the blockchain society.

“Use informatization to cultivate new kinetic energy, use new kinetic energy to promote new development, and use new development to create new brilliance.” I believe that blockchain, the “new kinetic energy” of technology, will bring us more surprises: “ "With a machine in hand, I own the world", "trade autonomy", wider sharing, optimally adapted life model... Blockchain technology will create a more honest, convenient and efficient big data era.

Content source: People's Liberation Army Daily

㈦ 500-word review of "Blockchain with Pictures"

500-word review of "Blockchain with Pictures"

"Blockchain in Pictures" is the best book for getting started with blockchain. The concepts are clear, the pictures and texts are rich, the cases are rich, and the stories are humorous. There is no pressure to read and it is easy to understand.

The book talks about two periods of history. A history of ledgers, from drawings and knotting notes in ancient times to today’s distributed ledgers. A brief history of Bitcoin, from the birth of Satoshi Nakamoto, the father of Bitcoin, to major events about Bitcoin in June 2017. Why do we need to use a relatively large space to introduce these two periods of history? Let me borrow a paragraph to explain: Reading history can make people wise, and learning from the past can help us know the future. The evolution of history is never accidental. The coincidence of the main line structure under the gears is an inevitable outcome drawn by fate.

Of course, blockchain is inseparable from technology. The author explains in Chapter 2 what blockchain is, how blockchain works and the principles of blockchain. If you have not read the book, you will definitely find it difficult to understand and boring, but the author combines wonderful stories and pictures to make the originally boring techniques not that difficult to understand, and it is easy to remember. Of course, due to space limitations, we can only give a rough explanation, and we still need to delve into the details.

When I first started learning blockchain, one thing I was very confused about was what are the application scenarios of blockchain? After thinking for a long time, I still didn't get the answer. After reading this book, it immediately became clear that blockchain can be used in scenarios where trust issues and value transfer need to be solved. In addition, this book introduces a large number of blockchain application fields in Chapter 4 Application. If you need to know more about the application of blockchainTo use, you can refer to the book "Blockchain Society: Decoding Global Applications and Investment Cases of Blockchain".

Due to space limitations, the problems described are limited, and we need to read more, think more, participate more, and learn more.

Personal understanding and reflections on blockchain technology

It only took less than 3 months for me to know the blockchain and start to understand it. From my limited understanding and knowledge I came up with some ideas. The following are some of my personal views and associations about the latest technology of blockchain.

The first feature of blockchain is its encryption method. A 256-bit hash algorithm is used. According to current technology, it is impossible to reverse crack. In other words, no one has the ability to open a lock without a key. This doesn't exist in the real world. In today's world, no matter how strong the lock is, it can be cracked. This technology solves one of the most important issues, which is privacy protection and security. From this technology, we can see that everyone in today's society actually has no sense of security. When it comes to a sense of security, everyone may think of it as physical safety. In fact, the word safety exists in every aspect of our lives. Blockchain technology first solves security problems with technology. This also makes everyone believe in his absolute safety. The first consensus emerged.

The second feature is decentralization. Human society has been centralized from the day it was established. The formation of tribes, families, nations, armies, and states. They are all manifestations of centralization.

Centralization means concentration of management. In this process of centralization of management, the whole world is pursuing democracy, giving rise to democratic centralism. Various forms of democracy are actually just conceptual manifestations. True democracy is difficult to form in a centralized structure. Looking at all the advanced social systems in the world, they are not true democracies. First of all, I think democracy cannot be hierarchical. In other words, it cannot be top-down. Democracy is the best embodiment of equality. Human beings have been pursuing freedom and equality for thousands of years. Discover that absolute freedom and equality are impossible to achieve. So from the moment the decentralized concept of blockchain emerged. The idealistic concept of freedom and equality seems to be emerging. Let the whole society see the possibility of realizing freedom, equality and democracy. Although decentralization is an ideal, there is a glimmer of hope in the ideal. Everyone started to get excited. The current hype over cryptocurrencies such as Bitcoin is clearly beside the point. But it was really made possible by a group of idealists. It is this group of fanatical blockchain believers. Let blockchain influence the entire cryptocurrency market.