区块链icu是什么意思,区块链和币

区块链ICU是一个新兴的数字货币交易平台，它为用户提供了安全、高效、便捷的虚拟货币交易服务。它拥有全球领先的技术，为投资者提供了安全、可靠的货币交易体验。

区块链是一种分布式数据库技术，可以记录比特币、以太坊等数字货币的交易信息，使用密码学技术确保交易信息的安全性和完整性。它的特点是，它是一个去中心化的系统，每个节点都可以查看和更新数据，并且不受任何中心机构的控制。因此，它可以提供安全、可靠的数据存储和交易服务，以及低成本的交易手续费。

币拓展是一种基于区块链技术的新型货币技术，它可以将一种特定的货币转换为另一种货币，从而实现货币间的自由转换。它可以使用者在不同的货币之间进行快速、安全的转换，而不需要任何中介机构，从而大大降低了货币转换的成本。它还可以提供更加灵活的货币转换方式，使投资者可以根据市场情况进行资金的优化配置。

区块链ICU是一个基于区块链技术的金融服务平台，它提供了安全、可靠的货币交易服务，以及币拓展功能，可以实现货币间的快速转换。它的安全性得到了技术专家的认可，而且它的交易手续费低，为投资者提供了更多的投资机会，使投资者可以更加自由地进行资金配置。

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『一』What is blockchain

In the simplest terms, blockchain is a distributed ledger.

To understand what this means, we first have to look at its opposite: a centralized ledger. Because blockchain technology started with finance, we will also introduce it below using banks as an example.

The following is our process for using bank debit card transactions:

You can swipe your card to purchase goods in stores.

The merchant sends a statement to your bank for the agreed upon amount.

Your bank will verify that you may have authorized the purchase.

The bank sends the money to the merchant.

Finally, the bank records this information in its ledger.

There’s a lot of technology involved here, but that’s basically it. The last step is important - the bank records all transactions made by the customer. This ledger goes all the way back to the first transaction the bank made.

This ledger is kept, maintained and regulated by the bank. You can read it in your online bank account, but you can't change it. The bank has complete control. If it decides to make a change, there's nothing you can do about it.

Crucially, if hackers were able to access a bank’s ledger, that could cause a lot of problems. They can change the account balance to make it look like certain transactions never occurred, etc.

This is why distributed ledgers are so cool.

Blockchain Network Visualization

If a bank operates on a distributed ledger, each member of the bank will have a copy of the ledger, and whenever any member of the bank When they make a purchase, they tell every other member of the bank.

Each member will validate the transaction and add it to the ledger (the added records are called "blocks"). This has some important benefits, as there is no centralized authority that can manipulate records. Hackers accessing one ledger won't be a big problem because other ledgers can easily verify it.

On the other hand, it requires a lot of work. In short, the second system is blockchain (at least in financial scenarios).

As mentioned above, blockchain is a decentralized list of transactions. If I send Xiao Ming 2 Bitcoins, I send a message to everyone in the network saying "I am sending Xiao Ming 2 Bitcoins" and they all record the transaction.

The future of blockchain, how will it change our lives?

One thing that is important about blockchain is that it is a public resource and no one really owns it because everyone owns it.

Blockchain is not just science fiction. we don't needTo understand the mechanics behind this technology, you need to understand that it could revolutionize our lives over the next 20 years.

This may sound bold, but remember, 20 years ago we were browsing the Internet on Netscape, using state-of-the-art Motorola flip phones, and buying our first DVD players. At that time, if we imagined that a computer could be held in our hands and that we could buy cars, make payments, and watch movies, it would have been considered a fantasy.

Although the impact of blockchain may not be as obvious as the Internet, nor as tangible as mobile phones, blockchain will effectively solve many worries in daily life. Such as intermediaries cheating people, transaction delays, etc. In our current lives, middlemen are everywhere and we take them for granted as a part of life. If one day these intermediaries cease to exist, you will find that the world will become a different place.

Imagine that by 2040, blockchain may become a mature and widely used technology. When one day you can't live without the blockchain just like you can't live without the Internet now, you will be surprised to find that this decentralized accounting technology has simplified the complexity and become a part of your lifestyle

『二』Explain blockchain in vernacular

img src=' https://p26 . toutiaoimg.com/large/39b 70000088 e 51 B3 c 258 '/< p> Recently, various ICO financial scams have been blocked in China, but this does not hinder the vigorous development of blockchain technology. After all, technology is innocent and can bring benefits to people. As for how to use it, it depends on people to operate it. If the operation is good, you can recommend development. If the operation is not good, it is like the major ICO projects. Find some knowledge for Internet celebrities to conduct so-called illegal fund-raising and financial fraud.

After talking for a long time, what is blockchain? When it comes to blockchain, the first thing that comes to mind for many people is Bitcoin. We need to solve a problem. Bitcoin is a blockchain, but blockchain is not Bitcoin. Simply put, blockchain is distributed ledger technology (DLT), not a token. It has many characteristics, such as decentralization, traceability, and difficulty in tampering.

(1) Blockchain is a distributed database

First of all, this is a decentralized distributed architecture system. Therefore, having only one central server or node is not called a blockchain. For example, if you go to Taobao to buy a mobile phone, you and the seller are strangers and have no basis for trust. If you give the money to the seller first, the seller may block you by not delivering the goods, and then your mobile phone money will be gone. If the seller ships first, do you pay? It is possible that you do not pay the seller after receiving the goods, and one party may lose money anyway. At this time, a third-party guarantee is needed to solve the trust problem. Just like Alipay now, you give money to Alipay and the seller will deliver the goods. When you receive the goods, the seller will receive the money.

The above example isA centralized system, as all guarantee work is handled by Bora, a third-party payment company. Suppose one day Alipay wants to tamper with data, neither buyers nor sellers can do anything because all authority is in the hands of one company.

At this time, a distributed database is needed. This third party is no longer Alipay, but thousands of monitors. When you buy a mobile phone on Taobao, you will shout to everyone that I am going to XXX to buy a mobile phone, and I paid XXX yuan. The other person will yell like everyone else. I collected XXX’s mobile phone bill and sent it over. In this way, everyone knows about this transaction and everyone is recording this transaction, so it is useless if one or two nodes have problems or malicious behavior, because most nodes have recorded this matter.

(B) Blockchain uses encryption technology to ensure data security

There are two important points here: 1. Crypto-enabled hash function 2. Asymmetric encryption.

If you are interested in specific concepts, you can go online, but people without basic knowledge may not be able to understand it, because these two points are too professional. In fact, if you only know the use of blockchain, you don’t need to have an in-depth understanding of it. It is also a technical concept. All you need to know is that blockchain relies on these technical points to ensure data security and is not easily tampered with. Of course, many people say that these two points can guarantee 100% non-tampering. I want to be a little conservative here. As an author who works in the security industry, I have always been skeptical about 100% security, so it may be more appropriate to call it difficult to be tampered with.

I will briefly introduce these two concepts and try to explain them clearly in plain English.

1. Cryptographic Hash Function

This is mainly used to verify the integrity of information. For example, I sent a message to the company leader saying that I was sick on Friday and needed to take a day off. At this time, a hash value will be generated based on the message I sent, such as: 123456. At this point, when the leader receives this message, a hash value is also generated. Because the content of the message I sent has not changed (it has not been tampered with), the hash value remains unchanged, still: 123456. This is if someone wants to tamper with this news and get sick on Friday and need to take a year off. At this time, the hash value will change, such as: 123489. That's when we learned our information had been tampered with.

2. Asymmetric encryption

It is mainly used for information encryption and authentication. It is actually two keys, one is called the public key and the other is called the private key. Public key encryption, private key decryption.

A public key is a key that everyone has. You own it, I own it. We can all encrypt with this key, but when decrypting it must be decrypted with my private key. If you don't have my private key, you can't decrypt it.

(C) The blockchain uses a consensus algorithm to reach consensus on new data.

The role of the consensus algorithm is to enable all nodes to reach a consensus on the new block. In other words, everyone must approve the new block.

For a centralized deployment system, this is simple, everything is controlled by the center, but in the distributed system of the blockchain, it is very complicated. For example, there are threenodes. A said he bought a mobile phone from XXX store and paid for it, B said he didn’t pay, and C said he didn’t pay enough. Then who do you listen to? What's more, blockchain technology is not as simple as three nodes, but a huge distributed system.

This is when a solution is needed. There is a corresponding problem in computer science called the "Byzantine Universal Problem" or "Byzantine Fault Tolerance" (BFT). This question was raised not because of Bitcoin, but because of a special background.

Early aircraft had three independent control systems. Why do we need three independent control systems? For example, in an emergency, there is a plane opposite. How to judge whether you should hide? If there is only one system, there is no choice, which is equivalent to centralized deployment. If the system breaks, you're dead. What if one of the two systems breaks? The good ones are said to hide, and the bad ones are said not to hide. The computer cannot judge the final result. Therefore, three independent systems are needed to support it, and the probability of two total failures is still very small. But this only takes into account injuries. What should I do if there is a malicious system? Is three enough? The answer is no, we need four systems to maintain consensus.

The use of blockchain is similar, because it is supported by a huge number of nodes, and each node is an independent system without interfering with each other. We can assume that the number of failed nodes and malicious nodes is limited, so it will not cause abnormal consistency of data.

Related questions and answers: What is blockchain? What is the use?

Blockchain is a new computing paradigm and distributed infrastructure that uses fast chain data structures, distributed node consensus algorithms, cryptography and smart contracts based on automated script codes to produce, verify, store and transmit data. It can also be said that blockchain is a distributed ledger technology that can provide a decentralized trust mechanism in a non-trust environment, allowing multi-party participants to conduct secure and trust-based transactions without intermediaries.

The core advantage of blockchain technology is decentralization. It can realize decentralized credit-based transactions in a distributed system where nodes do not need to trust each other by using data encryption, timestamps, distributed consensus and economic incentives. Point-to-point transactions, coordination and collaboration provide solutions to the common problems of high cost, low efficiency and insecure data storage in centralized institutions.

The fields of use of blockchain include digital currency, certificates, finance, anti-counterfeiting and traceability, privacy protection, supply chain, entertainment, etc. With the popularity of blockchain and Bitcoin, many related top domain names have been registered. It has had a relatively large impact on the domain name industry.

Related Q&A: Can you explain to me what a blockchain is in an easy-to-understand way?

Er Gazi is my friend since we were young, and we were naked in Hegou together. Later, I came to the city to study and work, and lived a life as a drifter in the north; he farmed at home and did some small business, and now he has a son and a daughter, and his life is safe. He envied my so-called "seen the world", and I envied his simple life without the pressure of mortgage loans. We have completely different and mutually enviable lives??

That day, Gazi came to me on WeChat and asked "District" What is the blockchain?" MeI was stunned for a moment, why did this idiot care about such avant-garde words? I pretended to be calm and prepared to talk about the technical principles bit by bit, but I could see the confused expression of that idiot through the screen of my mobile phone. How to explain "what is blockchain" to people who have a little bit of Internet concepts and technical foundation? This seems to be a very thorny problem??

The village commissary interprets the core of blockchain (picture quoted from the Internet)

The core essence of blockchain is "decentralization", and almost all operating modes of blockchain operate around the concept of "decentralization". Once you understand what "decentralization" is, you can basically explain the question "what is a blockchain?" For Erga, of course, he must perform a version that he can understand.

“I said, Gazi, are you still open that canteen at the east end of the village?” Gazi answered yes. I decided to use this canteen as an example to explain the actual use of blockchain in modern business and financial models. Scenario, so that he can better understand what blockchain is.

"Are there still many villagers who take credit now? By the end of the year, some of the accounts cannot be remembered clearly, and there are still many defaulters or those who refuse to accept their accounts?" At this point, Ergazi got emotional and kept complaining. Nowadays, people's hearts are not as old as before, and business is difficult to do!

"In the past, the operation model of your canteen was a typical centralized one. You granted credit to the villagers and allowed them to take accounts on credit. All accounting was done directly through you and our villagers. You were the center of all accounting affairs." Ergazi said I understand, let me continue.

I said: "If you fail one day, then all the accounts will become dead debts? It will be difficult to get back the IOUs written in black and white, let alone those who remember the accounts verbally, but the block The decentralization of the chain can solve this problem very well. As long as the earth still exists, the blockchain will remember that every account will exist forever." Erga became more energetic after hearing this.

The essence of blockchain is "decentralization"

"The essence of blockchain is decentralization. Once someone takes credit from you, all the neighbors in the village will help you keep accounts. Because of the accounting There are many nodes, and it is neither easy to make mistakes nor others to default on the debt, so everyone reaches a consensus. If someone maliciously fails to pay back the debt, the whole village will know his character, and no one will be willing to have financial transactions with him in the future? ?"

At this point, Gazi was obviously a little excited. It seemed that he was really worried about the credit issue. Seeing that Gazi was interested, I felt a little sense of accomplishment and continued: "Of course, the above is just an analogy. In fact, the blockchain does not really allow the villagers to get paper and pen to help you keep accounts, but through the Internet It was completed by networking with the computer."

At this time, Gazi was a little confused and asked: "Then everyone in the village knows what others bought from me, so who would buy anything from me? It's really a bit weird. There is no privacy. And you don’t have time to keep accounts here. Last year’s accounts are said to be this year’s. What if you keep delaying it?”

“Okay, Gazi, you are on to the point of asking this question.” It seems that Gazi is not stupid at all, and is still very smart in doing business. I will continue to explainShi said: "So, the recording and transmission of this information are all done through encryption. What you see is a string of numbers and English, and each account has a timestamp to record the time it occurred. It can't be lost."

Gazi had another question: "Could it be that the people who owe the debt have a good relationship with the villagers, and they join forces to tamper with the accounting? Then it will be unclear.?"

"Gazi, that's all you have to be careful about, haha." I understood Gazi's concerns and continued to explain: "The mechanism of the blockchain requires more than 51% of people to agree to tamper with a bill. Everyone has a degree of closeness and distance, and it is impossible for everyone to favor the same person. If it were a computer, more than half of the computers in the entire network would need to recalculate. This project is so huge that it is almost impossible to complete??"< p>In this way, through the actual situation of the canteen and combined with some scenes in life, Gazi understood what is in the blockchain: decentralization, distributed accounting, consensus mechanism, encryption mechanism, timestamp, and resistance to tampering characteristics.

Ergazi was silent for a moment, as if he was digesting the example I just gave him, and I don’t know how much he can understand it. Not long after, he sent me another voice message on WeChat: "What does blockchain mean? In the past, when I bought goods online and paid for them, I had to go through Jack Ma's house. If there is a blockchain, can it be done directly?" When trading with sellers, bookkeeping is very safe anyway."

"Okay, Gazi, it's really clear. Blockchain is essentially a decentralized distributed ledger data cloud. Of course, it can be understood as you understand it. "." I am very happy that Ga Zi can roughly appreciate the true charm of blockchain. Fortunately, my words have not been in vain.

What is Bitcoin? (Picture quoted from the Internet)

"Then what is Bitcoin? What does it have to do with the blockchain?" Gazi asked.

I thought about it briefly and decided to continue explaining the story of the canteen to Gazi: "In your canteen, the villagers can't keep accounts for you for free all day long. Do you have to bring something to visit during the holidays? Yes, this is the reward mechanism of the blockchain, and everyone who participates in bookkeeping may receive rewards."

"Then what are the rewards based on? There must be a rule, right?" Gazi asked very puzzled.

I explained: "Zhang San went to your store to buy a pack of cigarettes on credit, but Li Si knew about it first and kept an account for you first. Then other people knew about it and started keeping accounts. Then Li Si could get A small red flower as a reward ~ This little red flower is generated by the blockchain system and has no value in itself, so you do not need to pay any cost for this little red flower??"

"Then Bitcoin can be used as money Flowers? How is it different from the banknotes we usually spend?" Gazi continued to ask.

"Bitcoin is a digital encrypted virtual currency. In principle, it has no value itself like our banknotes. However, banknotes have the country as a credit guarantee, so they have value. Bitcoin is the Bitcoin network The value formed due to consensus among users and has tradable attributes, soIt can also be used to carry value. "What is said here is a bit profound. I don't know if I can understand it.

I continued to explain: "Banknotes can be printed infinitely. If more are printed, inflation will occur. When we were young, popsicles worth 1 cent were very good. , now you can’t eat with 1 yuan. Of course, there are many factors that affect inflation. The number of Bitcoins is fixed, and there is no possibility of unlimited over-issuance. However, different people have different judgments on their value, and coupled with the influence of supply and demand and investor sentiment, their prices are always fluctuating. ”

What is the difference between Bitcoin price fluctuations and stocks?

“So is speculating in Bitcoin just like speculating in stocks? Can you understand it this way? "Gazi seems to know a lot.

"In fact, there are some similarities, but there are also big differences. "I continued Gazi's topic: "The price of stocks always fluctuates around the valuation of companies, and there is government supervision in the stock market. Bitcoin itself has no value. It is priced entirely based on supply and demand and player valuations. It grows wildly without any government supervision. Therefore, it may have higher risks and higher returns than stocks. "

In the end, Gazi revealed the real purpose of today. He asked me: "Can I invest in blockchain projects? "

Gazi is a typical example of those who don't go to the Three Treasures Hall for anything. Although there is a large circle of people who are involved in both blockchain and Bitcoin, in fact, what he really cares about is "blockchain project investment" Is it reliable? "When these words came out, I was extremely shocked. Now the so-called blockchain investment projects have actually reached fourth- and sixth-tier cities and small towns!

As of now, there are only three types of blockchain investments. Situation: Mining, currency speculation, so-called blockchain projects.

Mining and currency speculation are still the main lines of the blockchain (pictures quoted from the Internet)

The so-called mining means mining by purchasing mining machines, etc. Equipment, mine virtual currency, and then sell and realize it to get returns. You can install the mining machine yourself, or you can find a mining pool to host it, but the core keys to profitability are "computing power" and "power consumption" as well as Investment in equipment. With the sharp drop in the price of virtual currencies and the increase in mining difficulty, the current mining returns of many currencies are very unsatisfactory. Mining is obviously only a very small number of investors who understand technology can play successfully. I My childhood friend Gazi obviously can’t play with it.

As for “coin speculation”, I have just introduced some differences between Bitcoin and stocks in the previous section. In principle, although they are both “buy low and sell high” operations , but there is a huge difference. Ordinary investors cannot determine the value of a virtual currency itself, and the price is determined entirely by the relationship between supply and demand, which is somewhat similar to what we often call "market makers." On the other hand, the virtual currency trading market is extremely Irregularities, theft and hacker attacks often occur, and the risk factor is much greater than investing in stocks. For the safety of my friends' funds, I am one of the ten thousand people who disagrees with "coin speculation"!

"September 4th" It is illegal to issue virtual currency

In fact, in my opinion, most of the so-called investment projects in the market are essentially "illegal fund-raising"and "pyramid schemes." Some so-called blockchain investment projects attract investors into the circle through various packaging and inflammatory rhetoric, and then create the illusion of profitability by building a software and hardware ecosystem of issuing new coins + mining + currency speculation, and then finally run away. Our country's laws clearly stipulate that the issuance of virtual currencies is illegal.

Illegal pyramid schemes now wear the cloak of blockchain (picture quoted from the Internet)

And how to identify some pyramid schemes under the guise of blockchain? In fact, these pyramid schemes are also so-called Ponzi schemes, what we people often call "empty gloves." These so-called "direct sales" or "marketing" activities often have no actual products to circulate, and rely more on developing "downline" to ensure top-level profits. With the rise of the concept of blockchain, this MLM model has shown an intensification trend, and it even deceives people under the banner of state support for new technologies.

When Gazi asked, “Can blockchain projects be invested in?”, I realized the seriousness of the problem. Gazi is a typical young man from a small town, and his pursuit is his wife and children. But when faced with the attraction of "wealth", people often do inappropriate things. Mining and currency speculation are simply not suitable for him, let alone blockchain investment projects that are most likely "illegal financing" or "illegal pyramid schemes"!

I quickly called Gazi and conducted the above analysis carefully??

『三』 What are Bitcoin, blockchain and ICO and what are their differences

< p>Blockchain is technology. Bitcoin is a digital currency or electronic currency based on blockchain technology. Blockchain technology is the basic technology of all digital currencies. The two are complementary to each other. ICO is the first issuance of currency, which has the same meaning as IPO in stocks.

『四』Is blockchain a virtual currency?

Regular blockchain companies are not currencies. Blockchain traceability combats fake and shoddy information.
In the past two years, the word blockchain has been very popular, and blockchain e-commerce will undoubtedly be the biggest trend in the next ten years. However, the industry is full of chaos. Many people think that blockchain is just a currency when they hear it, and they have many misunderstandings about blockchain. So before talking about blockchain, we must first talk about blockchain thinking.
Most people now understand blockchain as "coin". There are too many coins in the currency circle, such as Bitcoin and that coin. In fact, blockchain has nothing to do with currency. It is a technology, a business ecosystem, and an idea. It is mainly used in every field. It is very similar to the Internet. Talking about blockchain now is like the Internet 20 years ago. What were we talking about on the Internet twenty years ago? Talking about its technical architecture, operating system, language, server, etc., at that time, people said that Internet e-commerce was a lie because many people had not been exposed to it. In fact, many people feel the same way about blockchain now, especially after being confused by the currency circle, they have a lot of misunderstandings about blockchain.
When did Jiuling Blockchain start? Jiuling started its inspection and preparation in 2016, probablyIt took half a year to investigate all aspects of the blockchain. In 2017, it began to fully invest in the blockchain field. As of 2020, it is already in its fifth year. It has gained a lot of experience and achieved a lot of results in application. We have never played with coins or conducted an ICO. In the first few years, we didn’t make a lot of noise. We just worked hard to make the technology better, build the platform better, make the browser better, and apply it in terms of traceability. We have done relatively well in the application of traceability since 2017, and many products have been launched. In 2018, more than 10,000 products were applied in traceability. In 2019, we have taken it a step further. This year, we have even gone a step further. In terms of full-process visualization, Get them all open. So at the beginning, we used it in the field of traceability. Since 2018, we have used it in the entire blockchain ecosystem, including blockchain traceability, blockchain invoices, sharing economy, supply chain finance, and universal points. In terms of various applications, as well as the platform technology services we have created, we have fully entered this field, and are relatively mature and fully implemented.
Also, why is blockchain so popular now? Why has the development of blockchain reached the level of "ideology"? This is in line with the development trend of the times.
Let’s review the history of China’s economic development in recent decades. The wealth of the Chiang Kai-shek era was concentrated in the local tyrants, evil gentry and warlords. However, Mao Zedong liberated the majority of the people who were farmers and united the majority of the people, which was more suitable for China's situation at that time. Therefore, he defeated Chiang Kai-shek, overthrew the bureaucracy of the local tyrants, evil gentry and warlords, and put their Wealth was redistributed, productivity was developed again, and revolution and distribution were completely remade. Mao Zedong truly served the people and allowed the people to live a good life. Entering the era of large collectives, people go to work in the countryside to earn work points, and how much food you can get according to the work points you earn. During the Deng Xiaoping era, I felt that this was wrong. It might be because of inefficiency and eating from a big pot. Later, the reform and opening up began. After the reform and opening up, fields were assigned to households according to the number of people. After the distribution to each household, the output increased a lot, and everyone's income was reduced. Passion was stimulated, which increased production and efficiency. After the reform and opening up, commercial and industrial enterprises began to develop.
It can be seen that economic development is based on the needs of the times. China has been reforming and opening up for decades, and has moved from a traditional economic era to an e-commerce Internet economy. Now that blockchain has emerged, it is also because new problems have arisen in wealth distribution in the Internet era.
In the Internet era, social wealth is highly concentrated on several platforms, such as Alibaba, Tencent, Internet, JD.com, etc. Internet e-commerce leaders have a monopoly on finance, resources, and have too much say in products and other aspects. powerful. Social development has completely lost its balance. The uneven distribution of wealth has made the rich richer and the poor poorer. Those who have no money include the entire industrial enterprises in China. Except for the monopoly central enterprises, most enterprises are now very poor. It is difficult to survive. At this time, we need another commercial method.Revolution, productivity must be redistributed and readjusted. It just so happens that blockchain was born in response to the needs of the times.
The rules and mechanisms of the blockchain are completely open and fair, cannot be tampered with, and are decentralized. It removes the oligarchs of the organization and forms a shared economy for common development. Why does the government support blockchain so much? Because the government can fully enter the blockchain field for supervision, and the privacy of individual citizens can be protected. Personal information on the Internet cannot be protected, but personal information in the blockchain is in your own hands. In the era of Internet e-commerce, oligopoly organizations have monopolized information resources. There are too many fake and shoddy products and too much false information, making it impossible for us to distinguish them.
At this time, the rules and mechanisms for blockchain decentralized supervision came into being. Blockchain is not only a technology (some improvements have been made on the original Internet technology), but more importantly, it is used in applications to solve problems that cannot be solved by the Internet, traditional e-commerce, and traditional ecology, such as traceability. Traceability in the Internet era can be faked. A traceability code can be posted anywhere, but blockchain traceability is different. Blockchain technology is real and everyone can participate together. Through distributed storage, everyone who participates can Everyone can get this data, and then everything can be traced to its source, including products and invoices, including a message sent by a person, which can be traced, stored, and kept true.
Blockchain traceability starts from raw materials, to production and processing, to warehousing, sales, etc. Every link must be fully visualized, with pictures, videos, and text, and every step must be left behind. Traces of links. Only with this kind of mechanism can everyone be completely trusted and be fair, open and transparent in the current situation where there are too many counterfeits and shoddy products and a lack of trust. In short, what blockchain wants to solve are problems that the Internet cannot solve.
Speaking of blockchain, the first thing that many people think of is Bitcoin. Bitcoin's actual contribution to the world is to propose a rule and mechanism. Bitcoin itself has no value, it has no products and no support. But its technology and concept are very good, because this technology cannot be faked. The source code of this technology is open source and can be shared. Its technology uses the idea of ​​​​blockchain.
The rules and mechanisms of blockchain have been sought after by everyone as soon as they came out. However, in the past few years, they have been confused by currencies. That kind of currency is simply deceptive and goes against the blockchain. Instead, it makes people confused. Everyone no longer trusts the blockchain because they don’t know enough about the blockchain and think that the blockchain is just a currency. Because I want to understand a field, just like Jiuling Blockchain has entered its fifth year, and it is engaged in blockchain ecology, blockchain traceability, blockchain digital points, blockchain technology development, The development of blockchain browsers, etc., are still learning in this field, because it is not easy to learn thoroughly in a field. The reason why we have been very motivated in the past few years is because we know it is a big trend and coming. Like 20 years earlierMany people don't believe, don't understand, and turn a deaf ear to the Internet. But 10 years ago, big companies like Tencent, Alibaba, and Huawei were established. At the same time, this opportunity is now in front of us. Can we seize it? It's worth it. Questions for everyone to think about.
Finally, I want to make it clear to everyone that blockchain has nothing to do with currency at all.
For formal blockchain companies, the government has requirements and certification standards.
Standards: 3 basic requirements (a patent, soft copy, company registration in a national blockchain park, paid-in registered capital, dedicated blockchain R&D funds), 4 implementation application standards (must There are blockchain browsers, websites, blockchain application scenarios, and blockchain products), 5 types of blockchain professionals (blockchain financial professionals, blockchain digital professionals, blockchain credit management Professional talents, blockchain software development professionals, blockchain encryption technology professionals, employees with a bachelor's degree or above who have been employed for more than one year) can receive 6 basic subsidies.
The blockchain industry is a mixed bag. There are at least tens of thousands of cryptocurrency and ICU companies. They all claim that they are formal, but can they produce these certificates? The document states that as long as a company has a digital currency or ICO, it is not a blockchain company.
Under the background of this era, the ideas, rules and mechanisms of blockchain, decentralized supervision, and privacy and confidentiality distribution can protect everyone’s interests, redistribute productive assets, and prevent interests from being too concentrated in certain groups. For oligarchs and institutions, let everyone participate and use their energy to fight against counterfeiting, tax evasion, and false transactions, so as to create an ecosystem that protects the interests of the people, is conscientious, and can provide hematopoietic functions. This is the true purpose of blockchain.

『五』The relationship between blockchain and digital currency

1. Digital currency and blockchain are organically combined and closely connected. Blockchain is The lowest technology of digital currency is also the most important technical means. The most successful practice of blockchain is innovation in the field of currency. As one of the technologies of digital currency, the use of digital currency also includes mobile payment, trusted and controllable cloud computing, cryptographic algorithms, etc. The popularity of Bitcoin has made people Understand the technical framework and broad application prospects of blockchain.

2. Blockchain is actually an emerging digital accounting book. This kind of accounting book has powerful functions and is equivalent to a cloud storage function. Because after each transaction for a certain period of time is completed, All transactions within this period are recorded and completely copied on all nodes. This is a "block". Therefore, there is almost no possibility of information being tampered with, unless there is a way to hack into almost all nodes. Blocks are connected end to end to form a blockchain.

3. The biggest feature of digital currency is that it is programmable. It is a computer program and a piece of code. Because it can be programmed, it is an intelligent currency. Because it is intelligent, settlement confirmation and clearing transactions are completed at the same time..

4. Everything has evolved from programmable currency to programmable finance, and from programmable finance to programmable economy. Xianhe

5. To sum up, digital currency is a form of encrypted currency. It is precisely because this digital currency needs to exist in an encrypted form. Therefore, digital currency needs to be distinguished. Supported by blockchain technology, blockchain technology is also the most advanced technology in the world. Many well-known companies in the world are studying this technology. The development prospects of this technology are unlimited.

『Lu』 What are the differences between Bitcoin, blockchain and ICO

Bitcoin is a virtual digital currency proposed by Satoshi Nakamoto in 2009. Its characteristics are: There is no centralized issuing organization, the total amount is fixed at 21 million, and it is not a one-time issuance and needs to be mined by miners. Since it is a decentralized structure, trust needs to rely on cryptography and consensus mechanism technology to achieve it.
Blockchain is a general technology derived from Bitcoin. It implements a decentralized database model. Bitcoin can be classified as blockchain 1.0 because it does not have the concept of smart contracts. The key technologies of blockchain include cryptography encryption and decryption and consensus mechanism. Blockchain is generally used to combine with specific business logic, which requires reliance on smart contracts. Smart contracts provide an execution mode that is free from human interference.
ICO initial coin offering, derived from the concept of initial public offering (IPO) in the stock market, is the first act of a blockchain project to issue tokens, raise Bitcoin, and solve general digital currencies such as Ethereum.