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① How to explain blockchain in a popular way

Blockchain is a decentralized distributed ledger database. The advantage of this distributed ledger is that buyers and Sellers can trade directly without any intermediary. Everyone has a backup, even if your copy is lost, it will not be affected.

(1) Does everyone have to do accounting in the blockchain? Extended reading:

Blockchain application fields

1 , Financial field

Blockchain has potential huge application value in financial fields such as international exchange, letters of credit, equity registration and stock exchanges. The application of blockchain technology in the financial industry can eliminate the need for third-party intermediaries and achieve direct point-to-point connection, thereby greatly reducing costs and quickly completing transaction payments.

2. Internet of Things and Logistics Fields

Blockchain can also be naturally combined in the Internet of Things and logistics fields. Through blockchain, logistics costs can be reduced, the production and delivery process of items can be traced, and the efficiency of supply chain management can be improved. This field is considered a promising application direction of blockchain.

3. Public welfare field

The data stored on the blockchain is highly reliable and cannot be tampered with, so it is naturally suitable for use in social welfare scenarios. Relevant information in the public welfare process, such as donation projects, fundraising details, fund flows, recipient feedback, etc., can be stored on the blockchain and transparently and publicly disclosed conditionally to facilitate social supervision.

4. Insurance field

In terms of insurance claims, insurance institutions are responsible for fund collection, investment, and claims settlement, and often have high management and operating costs. Through the application of smart contracts, there is no need for the policy holder to apply or the insurance company to approve it. As long as the claim settlement conditions are triggered, the insurance policy can automatically settle claims.

② What exactly is blockchain and how do ordinary people make money in blockchain?

The popularity of blockchain has caught the masses off guard . Nowadays, no one knows about blockchain, but many people do not have a clear understanding of the definition of blockchain.

So, what exactly is blockchain?

Regarding blockchain and Bitcoin, most people have this misunderstanding: Bitcoin is blockchain.

In fact, Bitcoin and blockchain are not the same thing. Blockchain is the underlying technology of Bitcoin, but the first usage scenario after the birth of blockchain is Bitcoin.

I will explain to you what Bitcoin is and what blockchain is. Please move your bench quickly!

What is Bitcoin?

Bitcoin is a digital currency, a peer-to-peer encrypted digital currency. It is not a tangible paper currency such as RMB or US dollars. It is generated by computers through specific mathematical calculations. Also stored in the computer.

Because Bitcoin is just a string of data in a computer, it is also called a "virtual currency" compared to paper currency. To put it simply, you can understand that Bitcoin is just a string of numbers with cash value, similar to Q coins. In other words, Bitcoin has no actual value. Its current value is supported by the faith of currency speculators. If the faith is gone, the value of Bitcoin will collapse.

Bitcoin is magical, what is its magic?

If you want to get Bitcoin, in addition to buying it, you can also mine it. The original Bitcoin is mined!

1) Mining

The first thing that comes to mind for many people is the image of a coal mine:

Mine, absenteeism, dust , black coal, large trucks.

Bitcoin mines are not like this. They only need electricity, network cables, and computers. However, mining this mine is a technical job, and it tests the performance of the computer's CPU and GPU.

2) Transaction

How does a Bitcoin transaction proceed?

Each user has a unique address, which is the Bitcoin "wallet". For every transaction, for example: A pays B a Bitcoin, a Weibo post will be posted publicly in the system saying: "I gave B a Bitcoin @B". These records will be kept as evidence at every terminal of the system. on the chain.

If A wants to go back on his word and tamper with Bitcoin’s transaction history, then every terminal record on the network must be modified. However, this is not easy, because only A whose computing power exceeds the sum of the computing power of all nodes in the system can tamper with transaction records. Obviously, this is unrealistic.

In the transaction process, Bitcoin uses a decentralized accounting method, which is also blockchain technology. Simply put, blockchain is a decentralized distributed ledger database.

What is blockchain?

The blockchain was created along with Bitcoin. During the formation of Bitcoin, blocks were storage units one by one, recording the communication information of each block node. Blocks are very similar to For database records, every time data is written, a block is created. With the expansion of information exchange, one block continues with another, and the result is called a blockchain.

Blockchain is a distributed ledger technology. Everyone participates in accounting, and everyone has a copy of the ledger information. This account book is not easy to forge and is traceable.

For example:

On a certain day of a certain year, Lao Wang lent Xiao Wang 10,000 yuan. Lao Wang told everyone around him the news , the transfer records are posted in Moments, and everyoneHelp them prove the existence of this deal.

Lao Wang and Xiao Wang are two nodes. These two nodes generate transaction time, location, person and other information, and they are packaged to form a "block". Lao Wang’s friends are also nodes. These nodes jointly record the transaction status and details (blocks) of the two nodes Lao Wang and Xiao Wang. These blocks are connected to form a chain, forming a decentralized database.

In the past, only both parties knew when Lao Wang and Xiao Wang borrowed money. This was the centralized accounting model. But now everyone knows it and records it in their own ledgers. This is the decentralized accounting model. model.

When one day, Xiao Wang regrets that he did not borrow the money, everyone around him will know their transaction information, so Xiao Wang will not be able to deny it. This is the blockchain Information sharing cannot be tampered with.

How do ordinary people make money by participating in the blockchain?

I have summarized several methods suitable for ordinary people to make money during the blockchain bonus period.

1. Direct investment in blockchain: buy coins or buy some blockchain stocks, but the currency circle is risky, so you must be cautious when buying, and there are many blockchain stocks now. However, there are risks in the stock market, so investment needs to be cautious.

2. Make blockchain self-media: run a WeChat public account or Toutiao account, write articles about blockchain and publish them on it. If you are good, you can also get some good profits.

3. Participate in technology development: In fact, it is very simple, it is to participate in the process of blockchain development. However, this method requires high technical threshold.

4. Blockchain training: Companies that can provide blockchain technology training or knowledge training.

That’s all the relevant knowledge about what blockchain is, I hope it can bring you some help.

③ What is blockchain and how to make money with blockchain

What is blockchain

With the popularity of blockchain, there are also some domestic Branch companies began to claim to have developed products with blockchain technology under the banner of blockchain. For most people, although they hear more topics about blockchain, few people actually understand blockchain. chain, so what is the arrival of blockchain?

Simply put, we can understand the blockchain as a public ledger. I believe everyone is familiar with the account book mentioned. Whether it is a company or an individual, it will keep accounts. In the traditional accounting method, there will be a person who specializes in accounting, and there will be a unified account book. The account book will be kept by the account keeper. Blockchain technology is a kind of "decentralized" and "trustless" distributed accounting, that is, there is no central ledger and no unique accountant. All people can participate in accounting. Once the accounting is successful, everyone can participate in the accounting.Everyone who keeps accounts has an account book, which can prevent the account book from being modified or the accounting data being lost.

Let’s take an example: When people usually shop on Taobao, because they don’t know much about Taobao merchants, we need to use a third-party platform, Alipay, to build trust between buyers and sellers. , and blockchain technology means that we no longer need a center like Alipay to build trust between buyers and sellers. After the transaction, both parties will notify someone to help record the transaction. Everyone has recorded the transaction, and everyone has Have a ledger. This is the decentralized and trustless accounting method of blockchain technology.

How to make money in blockchain

1. Coin speculation. BitBit, which has been very popular in recent years, is the earliest project to apply blockchain technology. The lowest threshold way to make money in blockchain is to speculate on coins. Investors can make reasonable use of time and other factors to buy and sell digital currencies. Earn the difference. Although this method is used by many people, I would like to remind everyone here that there are risks in currency speculation, and everyone needs to invest cautiously.

2. Mining. Obtain digital currency through mining. For example, in Bitcoin mining, miners need professional mining machines. The process of "mining" is actually accounting. When the accounting is successful, the miner will receive Bitcoin as a reward.

Although blockchain projects are very popular in the market, there are also many scams that use blockchain to defraud people. At present, blockchain is still in its infancy, and blockchain technology is still in its infancy. If it is not perfect enough, blockchain investment is also risky, so everyone needs to be cautious when investing.

④ What is the essence of blockchain

Blockchain is essentially a decentralized distributed database, which is a distributed data storage, multi-center point-to-point transmission, Innovative application models of consensus mechanisms, encryption algorithms and other technologies in the Internet era.
In layman’s terms, the blockchain can be compared to a “ledger”. The traditional ledger is "centralized accounting" by one party. This new "accounting book" can be participated and shared by multiple parties on the Internet. Each participant can "accounting" and back up, and each backup is a "block". Each "block" is linearly connected to the next "block" in chronological order, and its structural characteristics make the record impossible to be tampered with and forged.
For example, if you are the one doing the accounting at home, and your parents give you a salary and let you record it in the account book, then because you are the only one keeping the accounting, you secretly spend more than ten yuan. Maybe they won't know, but now it's your parents who keep the accounts with you, so whether it's your father who wants to buy cigarettes secretly or you who want pocket money, every move will be clearly recorded in the account book.

⑤ What does blockchain do?

Blockchain is a new application model of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies.

Blockchain is also a decentralized distributed ledger system that can be used to register and issue digital assets, property rights certificates, points, etc., and conduct transfers, payments and transactions in a point-to-point manner. Compared with traditional centralized ledger systems, the blockchain system has the advantages of being completely open, non-tamperable, preventing multiple payments, and does not rely on any trusted third party.

In other words, the previous computing model required a computer to perform all calculations to draw conclusions, while the technical application of blockchain is to use "distribution" to transfer a complex operation separately. Giving N multiple computers to perform simultaneous operations not only reduces the storage load of each computer, but also saves time. Finally, all results are integrated through the "consensus mechanism" to obtain the final result.

⑥ Introduction to Blockchain (1) - Let’s keep accounts together

When I was a child, I was curious and full of desire for many novel things. When I want to understand and learn, countless exclamation marks often appear in my brain. As I grow older and gain more experience, this kind of experience becomes less and less common, and I am not surprised by the new things that many people follow. When "blockchain" first appeared, I was completely attracted. After that, just like when I was a child, I was instinctively driven to learn and understand deeply, and found that "blockchain" is a new world that is about to come. s future.

The first time I heard the word "Blockchain" was in teacher Li Xiaolai's column "The Road to Financial Freedom", and I read it many times in the column after that. to the emergence of this term. Out of curiosity, I followed and read the articles on Lao Mao's public account "Cat Talk", and gradually gained a 0 to 1 understanding of the blockchain. block-block, chain-chain, blockchain-connect the blocks one by one into a chain, imagine the DNA extending infinitely in front of you...

This paragraph is about blocks on the network An explanation of the chain, to put it in simpler terms, the blockchain is an open, decentralized, trustless, and jointly maintained accounting system.

Let’s first look at the traditional centralized banking business model. When we do transactions, why do we need third-party centralized companies such as banks, Alibaba, and Tencent? Because there is no trust between people. A lends B 100 yuan today. If B does not recognize the loan tomorrow, what will A do? The bank helps solve this problem. Everyone creates a real-name certified account in the bank. With the help of this centralized company, A lends 100 yuan to the bank (deposit), and B takes out 100 yuan from the bank (withdraw/borrow). Then the bank Responsible for recording this transaction, A's account will be 100 yuan more, while B's account will be 100 yuan less. This method of relying on third-party centralized companies for accounting can be seen everywhere in our lives: for online shopping, we need Alibaba’s Taobao City and JD.com; for loans, we need to find reliable sourcesA small loan company; issuing new books must go through a certain publishing house... In the final analysis, it is because there is no trust between people, or the risk of maintaining trust is too high and the cost is too high, so we need such a centralized power Third-party companies come to endorse transactions with trust and let them bear these risks. Of course, they also make enough of our money. However, relying on third-party centralized business models has brought us inefficient services, cumbersome procedures and diversion of value, such as banks queuing up to handle business, the lending process of small loan companies, and Taobao and JD.com’s rent collection from merchants. , the publisher’s share of the author’s manuscript fee, etc. This is the centralized, third-party trust-based world we currently live in.

The blockchain world is a new world where no third party is needed, all transaction information is public, and everyone participates in bookkeeping! As the world's first proven and feasible blockchain application, Bitcoin subverts the traditional financial model by using automatic accounting and open accounting, information cannot be tampered with, and can be queried at any time, bypassing third-party centralization. Buyers and sellers conduct transactions directly. Such a transaction model must be efficient, low-cost, and open. Just imagine if blockchain technology becomes popular in the future, when you want to transfer a large amount of money to a friend abroad, you can skip the lengthy steps and get it instantly; if you write a book and publish it, you don’t have to worry about being pirated. There is no need for the publisher to earn your royalties; a peer-to-peer mutual insurance platform will be built directly between people, and the insurance company will become a consulting company, etc. (In fact, Bitcoin and Press.one are realizing such a subversion)

The Internet is currently booming. We have Didi taxis or shared bicycles for outside work, Ele.me for ordering food, and Ele.me for dining in restaurants. Dianping, convenient payment via WeChat and Alipay is everywhere. When we pay on the Internet, we need to rely on a third-party platform company trusted by both buyers and sellers to complete the transaction for us. These third-party companies have a large amount of transaction data and information on both parties to the transaction. If a hacker intrusion occurs and information is lost, we will bear the consequences for our "trust risk"; not to mention the delays caused by reviewing and clearing transaction data. The inconvenience, and the huge cost of managing such a huge amount of data.

So how is blockchain technology implemented? For example, if there is an army that wants to seize an enemy fortress, and each soldier wears a special helmet with a red button, each time a fortress is captured, the army headquarters will award a medal. First, there is a soldier A who takes the lead in occupying the first fortress 1. He announces to other comrades through his helmet that he has occupied fortress 1. At this time, the helmet will record the coordinate information of fortress 1 and pass it to other soldiers along with A's shouting. All soldiers and others heard A's shouting through the helmet and pressed the red button to indicate that the message had been recorded simultaneously. Well everyone knows that Bastion 1 hasOccupied by A, and A is awarded a medal. Then others will immediately capture other fortresses and broadcast their achievements in the same way. In this way, the information that different fortresses were captured by different soldiers in this battle is all stored in everyone's helmet. Here, the helmet is the public ledger (strictly speaking, the helmet's program), and everyone participates in accounting; each capture information constitutes a block, and all information arranged in a certain order forms a blockchain; In addition to keeping accounts (pressing the red button), participants also scramble to grab the right to package new data (capture the fortress).

So let’s take a look at the advantages of this joint accounting method. 1. Decentralization. The ledger is jointly recorded and maintained by everyone. It doesn’t matter who records it first, because if there is an incentive (medal), someone will do it, and there is no need for a third party to intervene (no need for the command of a general or combat department, reducing military expenses and commanders) risk of sacrifice). 2. Data cannot be tampered with. If you want to modify the accounted data, you must modify more than 51% of the node information to succeed. Just imagine, if this army has one million people (actually the number of blockchain nodes is much larger than this number), it would be an almost impossible task to modify the helmets of more than half of the army. 3. Information is open and transparent. Everyone can check this transaction information in their own ledger (all fortress capture information has been recorded in everyone's helmet).

This is the first article I started writing. The last time I wrote so many words was probably in the college entrance examination. The first article was about a new field that I had never touched before. The text was a bit confusing and mediocre, and I didn’t know whether the analogy I made was correct or not, but I finally started to do it. Writing is indeed a skill that everyone should have, and it is a skill that can be improved through deliberate practice and urge yourself to maintain it.

⑦ What is blockchain? A popular explanation of a new accounting method (you will understand after reading it carefully)

In the past two years, a new accounting method has been circulated on the Internet. The financial model is "blockchain". I think many people still don't understand the meaning of this. After all, "blockchain" is still "advanced" to ordinary people. So what is blockchain? What is the popular explanation? In fact, it is not as complicated as we imagined, so let me tell you what "blockchain" is and see what is special about this model!

The most popular explanation of blockchain:

What exactly is the "blockchain" that people often talk about? I believe that many people don’t know much about it, and most of the information they view on the Internet is “unclear”. In fact, it is easy to understand. So what is the popular explanation of blockchain? Fundamentally speaking, this model is a “ decentralized" accounting method. So what is "decentralized"? All the exchanges and communications we have on the Internet now, in fact, the information will be stored in a browser or "centralized APP" "In the server, the other party can check our browsing information at will. "Decentralization" can completely avoid this situation.

Once the information is written in the "blockchain" , cannot be tampered with, ensuring its authenticity and confidentiality. It can also avoid the intervention of third-party platforms in transactions on the virtual market. The transaction is directly completed by both parties, which saves a lot of procedures and time, and also It can ensure that information is not leaked, transparent and other security issues, and there is no possibility of data loss!

After reading the above introduction, do you have a new understanding of the "blockchain" model? Do you know? Can’t understand? Let’s take a look at it through a cartoon!

Fields of application of blockchain

The “blockchain” model can be applied in many Fields, first of all, must be finance. The original blockchain was born from Bitcoin. This new technology can also be used in education, e-commerce, film and television, etc. Now all walks of life are also using it. In exploring this new field, I hope to have a foothold in the development of the future era!

⑧ What does Jin Wowo mean by blockchain distributed accounting

What does Jinwowo mean by blockchain distributed accounting? How should we understand the distributed accounting of Jinwowo blockchain technology?

Blockchain technology is also called distributed ledger. In layman's terms, if we assume that the database is a ledger, reading and writing the database can be regarded as a bookkeeping behavior. The principle of blockchain technology is to find the person with the fastest and best bookkeeping within a period of time. This person will keep accounts, and then send this page of information to everyone else in the entire system. This is equivalent to changing all the records in the database and sending them to every other node in the entire network, which not only ensures that the data It is safe and can also ensure the authenticity of data, thus improving social credibility.

What are the characteristics of distributed accounting mentioned by Jinwowo’s blockchain technology? How to simply understand the blockchain of Jinwowo Network Technology What is the distributed accounting function of blockchain technology?

Blockchain technology adopts a distributed accounting model, whether it is the real-time reconciliation capability in the registration and settlement scenario or the non-tampering capability in the data storage scenario. It can provide strong guarantee for traceability, anti-counterfeiting, and supply chain scenarios. Jinwowo uses the source of blockchain technology to ensure product data security.

How should we understand the distributed records of Jinwowo blockchain technology? Account?

Distributed storage is a data storage technology that uses eachThe disk space on each machine is used, and these scattered storage resources are formed into a virtual storage device, and the data is stored in various corners of the network.

What is distributed storage in Jinwowo blockchain technology?

Chongqing Jinwowo analyzes and studies the distributed storage in blockchain technology as follows:
First, each node of the blockchain stores complete data according to the block chain structure. Traditional distributed storage generally uses The data is divided into multiple parts for storage according to certain rules.
Second, each node of the blockchain is independent and has equal status, relying on the consensus mechanism to ensure storage consistency, while traditional distributed storage generally synchronizes data to other backup nodes through a central node.

How does Jin Wowo explain the blockchain, the distributed ledger model?

Blockchain technology is also called distributed ledger. Generally speaking, if we assume that the database is a ledger, reading and writing the database can be regarded as an accounting behavior. The principle of blockchain technology is Find the person with the fastest and best accounting within a period of time, let this person do the accounting, and then send this page of information in the ledger to everyone else in the entire system. This is equivalent to changing all the records in the database and sending them to every other node in the entire network, which not only ensures data security, but also ensures the authenticity of the data, thus improving social credibility.
The trust of blockchain comes from the underlying technology, which is to exchange historical information for current trust. This is a low-cost credit mechanism that has slowly grown from birth to blockchain, which is bound to receive attention and promotion.

What does distributed accounting of blockchain mean?

This is a good question. Let me give you an example. For example, I deposited 100 yuan in the bank. The deposit data is only recorded in the bank's database and cannot be obtained by others. This is "centralized accounting". The blockchain is a distributed accounting, a new information recording technology, and it is "encrypted" and "distributed". The data no longer exists in a center, but is stored once on all computers in the network. . For example, if I transfer 100 yuan to you, I will shout to all the computers in the entire network, and everyone will keep an account together, which is "distributed accounting".

What is the distributed storage in Jinwowo blockchain technology?

Chongqing Jinwowo Analysis: Big data refers to a collection of data that cannot be captured, managed and processed with conventional software tools within a certain time range. It requires new processing models to have stronger decision-making power, insight and discovery. Massive, high-growth, and diverse information assets for process optimization capabilities.
Big data needs to cope with massive and rapidly growing storage, which requires the underlying hardware architecture and file system to be much more cost-effective than traditional technologies and to be able to flexibly expand storage capacity.

Jinwowo Network: What is distributed storage in the blockchain?

Jinwowo Network Analysis: In the blockchain, data is stored on different computers, which not only achieves decentralization, but also hasHigh degree of encryption and security while also reducing costs.
And if your computer has extra storage space, you can even rent out the extra storage capacity, killing multiple birds with one stone.

⑨ Will the universal accounting of blockchain technology affect efficiency and waste computing power?

The key point is that universal accounting of blockchain technology will not affect efficiency and waste computing power. Look at how to innovate in a model and how to efficiently use blockchain technology to achieve the effect of the model;
Blockchain is essentially an encryption algorithm, based on the principle of 256-bit hash algorithm, to achieve information security; modern information The application of IT will become more and more globalized and universal. In addition to basic requirements such as anti-tampering, non-repudiation, and trustworthiness, information security also needs to strengthen privacy protection. Blockchain technology is based on modern cryptography. It is only produced by development. The cryptography used today is the result of cryptography 20 years ago. Therefore, blockchain technology must be applied to more participation scenarios, especially in the Internet economy. Does the existing encryption technology meet the requirements? The demand also requires more verification, more in-depth integration of cutting-edge cryptography technologies, and continuous innovation.
As long as you use blockchain to innovate in accounting methods based on your own model, not only will it not affect efficiency and waste computing power, but it will shorten time and improve efficiency.