区块链非得发币吗为什么,区块链非得发币吗知乎

区块链非得发币吗，这是一个值得深思的问题。事实上，区块链技术本身并不需要发币，但是发币可以让区块链技术更加实用。下面，我们就从三个方面来解释为什么区块链需要发币。

一、发币有助于激励参与者

发币的最大好处之一就是可以激励参与者参与区块链网络的运作。比如，比特币网络的每个节点都可以通过参与挖矿，来获得比特币奖励。这就使得网络的参与者有了更多的动力，从而有助于网络的可靠性和安全性。

二、发币可以构建去中心化应用

发币也可以帮助构建去中心化应用（dApps）。这是因为发币可以作为一种加密货币，用于资助这些应用的发展和运行。比如，某些去中心化应用会需要支付很多费用，而这些费用可以通过发币来支付。

三、发币可以提供交易安全性

发币还可以提供交易安全性。比如，某些发币可以用来支付交易费用，从而保证交易的安全性。此外，发币还可以用来防止货币的贬值，从而确保交易的安全性。

总而言之，发币可以帮助激励参与者，构建去中心化应用，以及提供交易安全性。因此，发币是区块链技术中不可或缺的一部分，有助于让区块链技术变得更加实用。

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❶ In addition to issuing coins, what are the application scenarios of currency-free blockchain?

The main application scenarios are (foreign media):

1. Banking

Essentially, a bank is a secure storage warehouse and value exchange center, and blockchain, as a digital, secure and tamper-proof general ledger, can achieve the same effect.

2. Payment and cash transactions

The World Economic Forum claims that decentralized payment technology, similar to Bitcoin, can change the "business architecture" due to the cash transaction model. The current architecture has already It has been in existence for more than 100 years.

3. The network is complete

Although the blockchain's account books are public, data communication can be verified and transmitted using advanced cryptography technology. This ensures that the data comes from the correct source and that nothing can be intercepted in the process. If blockchain technology is more widely adopted, the probability of hacking will decrease, as blockchain is considered to be more robust and reliable than many traditional systems. It reduces traditional network security risks

4. Academic records and academia

5. Elections

Elections require voter identity authentication , secure record keeping to track votes, and trustworthy counters to determine the winner. Blockchain can serve the voting process, vote tracking and counting votes so that there is no voter fraud, loss of records or unfair practices.

6. Car rental and sales

Last year it was announced that the partnership would use blockchain to build a proof of concept to streamline the car rental process and build it into a “click, sign, and drive” source" process. A future customer selects the car they want to lease, entering it into the blockchain's public ledger; then, while sitting in the driver's seat, the customer signs the lease agreement and insurance policy, while the blockchain updates the information simultaneously. This is not a fantasy, this type of process may develop into a reality for car sales and car registration as well.

7. Network and Internet of Things

IBM and Samsung have been working on a concept called ADEPT, using blockchain technology to form the main body of a decentralized network of Internet of Things devices . According to the CoinDesk website, ADEPT, as an anonymous decentralized peer-to-peer telemetry technology, blockchain can become a kind of public ledger for a large number of devices, and they will no longer need to have a centralized route to mediate traffic between them.

8. Prediction

The entire research, analysis, consulting and prediction industry will be shaken by blockchain. Online crowdfunding platform Augur wants to invest in decentralized prediction markets. The company claims it will offer a service that acts like a regular gambling exchange. This entire process will be decentralized and will provide a place for users to place bets not only on sports and stocks, but also on other aspects such as elections and natural disasters. "The idea would go beyond a sports lottery and create aA "prediction market".

9. Online Music

In order to make online music more equitable sharing, many music artists turn to blockchain technology. According to Biilbord, the three companies are preparing to establish a more direct payment channel for artists to solve payment problems and solve authentication problems through automated smart contracts. The PeerTracks system is still under development and aims to provide a music streaming platform that allows users to listen to music online and use blockchain technology to pay artists directly without an intermediary

10. Ride sharing

Ride-hailing apps like Uber seem to be the opposite of decentralization, with a company acting as a dispatch center and using its algorithms to control the fleet drivers they are responsible for.

11. Stock Trading

For many years, many companies have worked to make the process of buying, selling, and trading stocks easier. Emerging blockchain startups believe that blockchain technology can make this process more secure, automated, and more efficient than any previous solution.

12. Real Estate

Pain points in the process of buying and selling property are: lack of transparency during and after the transaction, reams of paperwork, potential for fraud, errors in public records Wait, and these are only part of it. Blockchain provides a way to achieve the need for paperless and fast transactions.

13. Insurance

Companies such as AirBnB, Tujia, and Wim provide a way for people to temporarily exchange assets—including private homes—to generate value. The problem is that it is almost impossible for people to insure their assets on these platforms. Along with blockchain startup Stratumn, professional services firm Deloitte and payment services provider Lemonway have just recently released a blockchain-based solution dubbed "LenderBot."

14. Healthcare

Medical institutions have always suffered from the inability to securely share data on various platforms. Better data collaboration among data providers means more accurate diagnoses, more effective treatments, and improved health systems’ overall ability to deliver cost-effective care. Blockchain technology allows hospitals, patients and parties in the medical benefit chain to share data in the blockchain network without worrying about the security and integrity of the data.

15. Supply Chain Management

One of the most widely applicable aspects of blockchain technology is that it makes transactions more secure and supervision more transparent. Simply put, the supply chain is a series of transaction nodes that connect the entire process of products from the supply end to the sales end or terminal. From production to sales, products go through multiple links in the supply chain. With blockchain technology, transactions will be recorded permanently and decentrally, which reduces time delays, costs and manual errors.

16. Cloud storage

Currently providing cloud storageMost companies place customer data in centralized databases, which increases the danger of hackers stealing information. Blockchain cloud storage solutions allow decentralized storage. Stori is testing the beta version of its cloud storage network product, aiming to improve data security and reduce the transaction costs of storing information in the cloud

17. Energy management

Energy management is another An industry that has long been highly centralized. In the US, if you want to trade energy, you have to go through a trusted energy holding company, such as DukeEnergy, or in the UK, National Grid, or trade with a reseller who has already purchased from the larger power companies< /p>

18. Sports Management

Investing in athletes has gradually become a focus of sports management agencies and companies, but blockchain has the ability to democratize fans to gain access to current sports stars. Financial shares in the future can decentralize the process of investing in athletes. This concept of using blockchain to invest in athletes and obtain benefits has not been tried on a large scale.

19. Gift cards and membership programs

Blockchain can help retailers that provide gift cards and membership programs make their systems cheaper and more secure. There is almost no need for any middleman to handle sales transactions and gift card issuance. The acquisition and use process of gift cards using blockchain technology will be more efficient and cheaper

20. Government and public welfare

< p>The distribution of welfare assistance is another area where blockchain technology can be applied. Blockchain can help make public management simpler and safer. GovCoinSystems Limited is a London-based fintech company that is supporting the UK government’s work in the welfare distribution sector.

❷ Is it correct or wrong to use blockchain technology without necessarily issuing virtual digital currency?

Using blockchain technology does not necessarily require the issuance of virtual digital currency. Is it correct

Blockchain is an Internet technology. The technology plus the application in various industries
will bring about changes and optimizations in the industry, and virtual currencies are not necessarily required

❸ Blockchain In addition to issuing coins, what are the application scenarios of currency-free blockchain?

The actual application scenarios of blockchain now include:

1. The pain points of traditional information sharing

Either a centralized center publishes and distributes information, or it requires regular batch reconciliation between each other (typically once a day). For information sharing that requires timeliness, it is difficult to achieve real-time sharing.

The two parties sharing information lack a mutually trusting communication method, and it is difficult to determine whether the information received was sent by the other party.

2. Blockchain information sharing

First of all, the blockchain itself needs to maintain the data consistency of each node, and it can be said to have its own information sharing function; secondly, real-time The problem can be realized through the P2P technology of blockchainNow; finally, using the tamper-proof and consensus mechanism of the blockchain, a safe and reliable information sharing channel can be constructed.

Okay. You may have this question: To solve the above problem, I can build an encrypted channel myself without using blockchain technology! But I want to say that since blockchain technology can solve these problems and it is very convenient to add nodes, why not use blockchain technology before you have built a safe and reliable information sharing system?

3. Application cases

Let’s take Tencent’s own application—Public Welfare Person Searching Chain—to illustrate the value of blockchain in information sharing. Bitcoin solves the problem of trust in currency issuance and accounting. Let’s take a look at how Bitcoin solves the above two problems one by one.

The problem of spam issuance: Bitcoins can only be obtained through mining, and the total number of Bitcoins available is 21 million. The problem of currency spam issuance is solved in the issuance process; The issue of ledger modification: Bitcoin Coin transaction records form a network through chain storage and decentralized global node balances to solve the problem of ledger modification.

Chain storage can be simply understood as: the blocks that store records are connected one to another, forming a chain; the records of all blocks except the first block contain the calibration of the previous block. Verification information, changing the information of any block will cause subsequent block verification errors. Because of this correlation, other blocks cannot be inserted in the middle, so it is difficult to modify existing records.

❹ A friend said that he is working on blockchain. Is blockchain just about issuing coins? Is it a fraudulent project?

No, blockchain is a decentralized distributed ledger. , you can understand the blockchain as the Internet. Will the Internet deceive people? No, but some people will use the Internet to deceive people, and the same is true for blockchain.
Blockchain is not just for issuing coins, blockchain technology can be applied in many places. The biggest feature of blockchain is decentralization. General Internet products are centralized, and blockchain can use decentralization to solve the trust problem between each node. Because in the blockchain, information is traceable and cannot be tampered with.
Now there are many blockchain implementation projects. You can properly understand that it is not a simple currency issue, nor is it a deceptive project.

❺ What is the relationship between blockchain and currency issuance

Blockchain technology is the underlying technology of Bitcoin, and Bitcoin is the first application of blockchain.
Bitcoin transaction information is recorded in a decentralized ledger, which is the blockchain.
Each block is connected in chronological order based on cryptographic principles to form a chain structure, hence the name blockchain.

❻ The blockchain platform is here to issue coins

The blockchain platform generally issues coins based on its own development and operation needs, and has a token incentive mechanism. It is not ruled out that there are some platforms that issue coins to arbitrage money. There are also many platforms that do not issue coins, such as some media forums Babbitt, Golden Finance, etc., there are also some tool products and various block browsers. There are also some decentralized wallets in the blockchain wallet that do not issue coins. There are also some exchanges that have not issued coins.
Issuing currency is only a means, not the goal of the blockchain platform

❼ How to issue currency in blockchain projects is enough to read this article

For Token, every Individuals have different understandings and usages. We usually think of tokens in terms of blockchain technology

Tokens. In the initial stage of blockchain development, you can simply understand tokens in real life
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"Points" or "virtual currencies" such as gas station car wash membership card points, the barber shop downstairs allows you to get it

Spend 2,000 to get a 1,000 hair salon membership card, kindergarten The little red flower that the teacher gave to the children... is mainly a virtual currency that is mainly based on incentives

and is generally recognized within a certain range. You can use what I gave you at that time
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Token to replace some of my items or equivalent currency.

After the emergence of Ethereum ERC20, Token entered the second stage. As a certificate for raising Ethereum, it can be traded on

exchanges to automate the ICO process.

After the birth of the translation of token, our understanding of Token has entered the third stage. The connotation of Token has been further

expanded. Token is no longer limited to tokens or ICO tokens, but also has usage rights, income rights, etc.

Attributes, areas Blockchain encryption technology can ensure that all symbols that cannot be tampered with can be used as tokens, that is, they have exclusive use rights. When their exclusive use rights are placed in the value network, they are converted into general use rights. , can

further circulate; that is, only at this stage can the development of the Token economy be possible.

Now, the development stage of domestic Token is generally in the second stage. The primary market of virtual currency has been ruined, and many people are rushing to launch blockchain. For projects, find talents, build a team, write a blockchain project white paper, find

industry leaders’ platforms, do community activities, form a community, and then go to the exchange to issue your own token. To make a token

only requires 0.2 ETH. After it is issued on the exchange, as long as enough people subscribe for your Token, it will instantly become

thousands With ETH, leeks can be easily harvested.

WarmthTip: Coin issuance itself is not a financing act. Coin can simply be used as a circulation within the project ecology

. Only public ICO after the issuance of coins is a financing activity. Our country clearly prohibits ICO.

Issuance of currency for financing (ICO) is already illegal.

So, what are the specific procedures for issuing coins? Today I will bring you some useful information! Teach you how to use smart contracts

to issue your own virtual currency, which is Token.

Now it is relatively easy for us to issue a coin. This is all thanks to the ERC20 protocol. As one of Ethereum's

protocols, it stipulates the basic structure of the token contract. Any token that complies with the ERC20 protocol can be used in other applications (wallets, exchanges, etc.). With the ERC20 protocol, we do not need to repeatedly develop tokens

Basic functions greatly reduce the threshold for token development, allowing developers to apply tokens to more fields and develop
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Start more ICO projects; more conveniently, since different ERC20 tokens are compatible with the ERC20 protocol, transactions between two ERC20 tokens can be carried out

.

❽ What is blockchain? If you understand these 9 questions, you will understand

What is blockchain? If you understand these 9 questions, you will understand
What is blockchain? What can blockchain do? How to make money with blockchain? I believe that many netizens are confused when faced with this new term. So how can we better understand blockchain and make this new technology available to us? The author has collected nine very common questions from the Internet. I hope that after reading this article, you will have a clearer understanding of blockchain.

Nearly omnipotent blockchain technology
Simply put, blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms. Its core is distributed data, and the result is "decentralization." Blockchain technology can be applied to many scenarios in our lives. Next, let’s take a look at the analysis of blockchain technology!
1. Technology is a double-edged sword. While you are still using your mobile phone to play games, others are already using their mobile phones to make money every month! I want to try Jiaerwu Wuyi Wuba Lingyi Lacquer to make your mobile phone no longer a toy!
Just like nuclear energy is a physical technology, blockchain is an underlying technology at a technical level.
Nuclear energy can be used for atomic bombs and nuclear power generation. Similarly, blockchain can be used for the management of industries and life elements, which may make society more stable and can alsoCan be used by bad guys as the quickest means of committing crimes.
2. Talking about technical value apart from the application level is muddying the waters
As the underlying technology, blockchain has its application level and negotiation methods. Currently, some people talk about blockchain in terms of business models, some in terms of hardware, and some people talk about blockchain in terms of power distribution. It is gradually becoming clear in the market that blockchain is used in the design of technology combinations and business models, from hardware to software to business model to financial design and many other aspects. But not every blockchain can issue coins, and not every blockchain should issue coins.
3. Technology is decentralized, but the application is not necessarily
Blockchain technology is decentralized, but it can be decentralized or not in upper-layer applications. If it is applied to things, industries and projects that cannot be decentralized, it is not decentralized; if it is applied to things where everyone can participate universally and have equal authority, then it can be decentralized.
Including coins on the blockchain, if a country adopts legal digital currency, the coins on the blockchain can also be centralized. The blockchain that supports the operation of Bitcoin is decentralized, but the alliance chain usually has one or more enterprises as the core control alliance, which becomes centralization.
Technology itself and what kind of business and political ecology the technology can support are completely different things.
4. What kind of people use what kind of tools
As a powerful tool, blockchain is powerful not only because of technology, but also because many talented people have invested in it. field, causing the energy of this technology to be amplified. As for whether the power of blockchain benefits society or cuts leeks? It is possible to make the world more turbulent or to make society more harmonious and beautiful.
On the positive side, more kind-hearted people will come in and reach more consensus, and there will be more legislation, restrictions and norms at the national level, which will ultimately allow us to use this technology to give more people opportunities; on the negative side, In other words, it is possible that more greedy and unethical people will come in to divide the wealth, and it is even possible that people in some countries and regions will use this new technology to commit crimes and terrorism.
5. Blockchain promotes the globalization of civilians
Under the blockchain, the global connection space is closer. The 6-degree space will become 5 degrees or even 4 degrees in the future. Blockchain can inspire The growth of various communities. The globalization of interest groups will become inevitable, and there will be various international communities and summits in the future.
6. Blockchain facilitates co-creation
For example, in the past, the connection between international singers and ordinary people had to go through several barriers, including record companies, agents, sales channels, etc. In the blockchain era, international singers publish their songs under blockchain technology. Everyone has the possibility to become a partner of an international singer. They may write songs for international singers, or they can purchase Tokens to obtain dividend rights from distribution proceeds, etc., and enjoy records. Proceeds from distribution and downloads.
7. Trust will become convenient and low-cost
Artificial intelligence big dataThe combined effect of blockchain and blockchain can resolve disputes at the factual level. The tamper-proof nature of the blockchain allows hundreds or even tens of thousands of machines to maintain the same data and encrypt it. Basic facts will be trustworthy. On this basis, the corresponding contracted and authorized information cannot be changed. Replace manual systems with machines, breaking the loopholes in manual operations, the possibility of cheating and even corruption, so that everyone's information can be confirmed to be authentic and trustworthy.
On this basis, if the trust level of the business system is good, trust between people will be enhanced in the process of implementing the designed system.
8． Interaction leads to creativity, and creativity generates income
Blockchain is a comprehensive ledger. Some exchanges are just ideas and creativity at the moment, but they may be the starting point of a certain career or even industry in the future. In the previous accounting system, there may not be value. However, under blockchain technology, values ​​that are not yet seen can be recorded. If this leads to products, creative people can benefit. Various human activities may be valuable, creative, and worthy of recording.
Extended from this, a better application of blockchain can record creative related models, introduction of business opportunities, etc., and put valuable things in an ecosystem. Blockchain can create new ones. A cooperative approach.
9. There will be more legal supporting facilities in the future
The world of blockchain is not a disorderly world. Technology will be used by people, and people are rational.
Records can resolve various factual disputes, and can also cause more issues such as authorization rights, patent and creative copyright management, and many other issues. In the future, there will be more legal support, which can not only standardize and manage service consumption and life, but also avoid related risks and problems, avoid and combat crime

❾ Why does the blockchain need to issue currency

We know that the country has always advocated a "coinless" blockchain. It means that the chain does not require ‌‌‌‌ coins, and it supports technology development but does not support the issuance of coins.

Of course, the currency here is what we often call TOKEN, which originally meant token (temporary) in computer identity authentication. With the popularity of blockchain and digital currency, people are interested in TOKEN. The translations are diverse, including tokens, points, certificates, logos, indicators, and more.

The understanding of TOKEN in the market is mainly divided into two categories.

In the first category, 99% of people think TOKEN means token, because 99.9% of projects do the same. Establish a foundation, build a website, write a white paper, and then launch an ICO. Because most of the project is still in the conceptual stage, the TOKEN itself has no other meaning except transaction, so people call it a token, and it is implemented to some extent. Functions of money.

The second category, professionals and institutions are more willing to translate TOKEN as a proof of equity, or a pass. For example, a person’s identity certificate,Educational certificates, equity, bonds, points, bills, etc. are all authentic and cannot be tampered with due to the proof of equity. Every proof of stake becomes more secure and reliable through cryptographic protection.

So, blockchain is not just a technology, it is a new way of production and organization, and even a new way of thinking.

So, the question now is, do blockchain projects have to issue coins?

Answer: No coins are issued. Not all blockchain projects need to issue coins, and those that issue coins are not necessarily blockchain projects.

For example, in the alliance chain, there is no need to issue coins. For example, Tencent's Q coin is, in principle, a currency, but it is not a blockchain project.

So, there is no correlation between the two, but if it is a public chain, it needs to issue coins. why?

Let’s take Bitcoin as an example. As a public chain, the Bitcoin system must rely on the existence of coins. The public chain obtains the stability and non-tamperability of its system through nodes distributed around the world, and these properties are the basis for the survival of the public chain.

Just imagine, if the Bitcoin system is unstable or can be easily tampered with, Bitcoin will be worthless. These nodes are not set up by one or several companies, otherwise they will be equivalent to private chains or alliance chains. These nodes must be dynamically constructed by many participants. The existence of these nodes must require the existence of some kind of incentives, otherwise why would the builders of these nodes participate in your system. And this incentive must be integrated with the blockchain system and must be a currency.

So, why should it be a currency instead of a legal currency, such as RMB, as an incentive?

If RMB is used as an incentive, since RMB must be stored in a RMB account, and this account itself is centralized, it is too easy to be controlled. Think about why domestic Bitcoin exchanges are so afraid of the central government. I understand, I am afraid of being weaned. In addition, the RMB cannot chemically react with the smart contracts within the blockchain.

Electronic currency issued by the central bank cannot be used as the native currency and incentive of a certain blockchain system. Why?

If the central bank or a certain wealthy person wants to destroy a certain project, they only need to use enough electronic currency to build enough nodes and carry out 51% attacks. Therefore, use the electronic currency issued by the central bank as the native Coin and incentive blockchain systems are also not possible. Blockchain projects that use independent native coins and incentives do not have this worry.

Because if a person or organization wants to get enough nodes to carry out a 51% attack, then it must first obtain more than 50% of enough coins, and the number of coins on the market is certain. , so before he got enough coins, the skyrocketing price was unbearable for him.

Therefore, public chain projects must have coins, and public chain projects without coins are fine.Than a castrated person.

And only by reasonably stimulating output through tokens can production relations be changed and the value of the blockchain be brought into play. Therefore, the project must have TOKEN. TOKEN can promote the development of the project faster. TOKEN solves the problems of incentives and consensus. Incentives solve the problem of autonomy. The economic ecosystem of positive autonomy plus the underlying technology of the blockchain is a perfect solution. combination.

❿ What does blockchain mean and how to make money

The meaning of blockchain and how to make money are as follows:
1. The meaning of blockchain: Blockchain is a After the information is confirmed by multiple parties, it is finally stored in multiple places. It is a tool that can solve credit problems during transactions.
2. How to make money with blockchain:
(1) Provide blockchain technology services. Form a corporate team to specialize in the development and application of blockchain technology, and provide your technical results to companies in need for use, or develop corresponding blockchain technology based on the needs of service recipients. A simple understanding is to be a middleman.
(2) Use blockchain technology to issue coins. This method is that the company acts as an issuer and releases a certain number of virtual coins for others to invest, such as Bitcoin, Litecoin, and Dogecoin. At that time, if you wanted to become an issuer, in addition to having blockchain technology, you also had to apply for a series of filing documents and materials such as business qualification certificates and currency issuance qualification licenses from relevant regulatory authorities. Otherwise, if you don’t have these documents, it would be fraud. . However, successfully preparing these documents will still test the strength and capital of the company. If the funds are not strong enough, it will be difficult to sustain.
(3) Payment for blockchain knowledge. In the early days of the blockchain market, many people did not understand what blockchain was and wanted to participate, which inevitably gave rise to a blockchain knowledge payment market. Since this year, many public accounts with the theme of blockchain have appeared, and many paid blockchain courses and small investment circles have been born.
(4) Register to receive free candies. Candy is a token that the blockchain project team rewards early users in order to attract more users to join the early use and spread. Similar to the early "Didi", in order to cultivate a large number of early users, a large number of free taxi tickets were issued to users.