如何区分区块链的真假视频,如何区分区块链的真假

区块链是一种分布式的数据存储技术，是一种新型的数据存储技术，它将数据存储在一组由用户维护的节点上，每个节点都能检查前一个节点的数据，从而使数据更加安全、可靠。区块链的特点是：去中心化、不可篡改、安全可靠、透明公开。

视频安全是指视频的安全性，是指视频在传输、存储、播放等过程中的安全性，是指视频的安全性，是指视频在传输、存储、播放等过程中的安全性，是指视频的安全性，是指视频在传输、存储、播放等过程中的安全性，是指视频的安全性，是指视频在传输、存储、播放等过程中的安全性。视频安全可以通过加密技术、数字签名技术、访问控制技术等实现，以确保视频的安全性。

数字签名是一种用于确认信息真实性的技术，是一种用于验证报文发送者的身份以及报文内容的完整性的技术。数字签名的工作原理是：首先，发送者使用自己的私钥对报文进行加密，然后将加密后的报文发送给接收者，接收者使用发送者的公钥进行解密，如果解密后的报文与发送者加密前的报文相同，则证明报文发送者的身份和报文内容的完整性。数字签名可以有效防止报文的篡改，为视频的安全性提供了保障。

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㈠ The authenticity of the Five Elements Blockchain

In terms of appearance, the entire outer ring of the Five Elements Coin is golden. It is said to be made of pure gold. The top of the Five Elements Coin It is engraved with the head of a man, with the words "Zhang Jian, Five Elements Coin" underneath the head, and a set of numbers below.
Zhejiang Hongxin Yulong According to coin buyers, the return on investment is frighteningly high. They claim to be able to kill Buffett instantly and look down on real estate speculators. I want to ask what is the mystery of this Five Elements Coin. What the promoter said is incredible: Zhang Jian, the issuer of the Five Elements Coin, is the richest man in the world. In order to prevent the outflow of gold, the country entrusted Zhang Jian with 5,000 tons of gold to create a limited number of gold coins with his image. Behind the Five Elements Coin is digital currency, which will eventually replace paper money.
Digital Currency is an alternative currency in the form of electronic currency. It cannot be completely equated with virtual currency in the virtual world, because it is often used for real transactions of goods and services, and is not limited to virtual spaces such as online games. Common digital currencies include Bitcoin, BitShares, etc. There are currently thousands of digital currencies issued around the world.

㈡ How to identify the authenticity of a blockchain white paper

In the currency circle, there are many stories of getting rich by relying on a white paper and air coins. The digital currency industry based on blockchain technology is very hot. In this industry, the most indispensable thing is leeks and people who want to cut them. The proliferation of air coins has given rise to a new industry - "blockchain white paper ghostwriting".

Currently, there are a large number of "blockchain white paper ghostwriting" businesses on the market. In addition to Taobao, there are more than 100 shops engaged in blockchain white paper writing business on Zhubajie.com. Some stores claim to be able to conduct overseas advertising and even create project information on Wikipedia. The addresses of such stores are basically first-tier cities such as Beijing, Shanghai, Guangzhou and Shenzhen, and most stores support on-site negotiation of transactions. People in the blockchain industry said that the routines of many ghostwritten white papers are basically the same and are not particularly difficult. “There are standard templates for everything, and a lot of it is ready-made.”

These white paper ghostwriters are targeting a weak point in today’s blockchain market: most entrepreneurs don’t understand the issues surrounding blockchain What content should be included in the formal white paper of chain technology has become the reason to support the entire black production line.

Taobao’s actions obviously only cleaned up a very small part, and these “magic hands” cleverly avoided surveillance. When Gray Production Circle asked a Taobao merchant who had communicated with him before why he could not search for his store, the other party said that he could enter by clicking on the link he sent.

The irony is that these white paper ghostwriters who are engaged in "guerrilla warfare" with Taobao are pure scams. The Gray Industry Circle learned from a ghostwriter that most of the writers behind these "Taobao white papers" are ordinary copywriters. Not only do they not understand blockchain technology, they can't even write code, but they claim that they "There's logic, too."

An insider who wrote the blockchain white paper even directly toldGray production circle: "If you have an idea, give me an idea. If you don't have an idea, give me an outline. If you don't have an outline, you can give me a direction. We will make a logical white paper for you."

So, how should we stay vigilant about "white papers"? The project is unrealistic, the content is obscure and difficult to scrutinize, the project is copied to gain popularity, and the strength of the team is infinitely exaggerated.

For ordinary people and capital, blockchain represents the ability to make quick money. The gathering of summits, celebrity platforms, and even the attendance of aunts have pushed the blockchain into wave after wave, but we must believe that under the supervision of multiple parties, valuable blockchain project white papers can be truly implemented. application and serve society.

The Xueshuo Innovation Blockchain Technology Workstation under Lianqiao Education Online is the only "blockchain technology" approved by the "Smart Learning Workshop 2020- Xueshuo Innovation Workstation" carried out by the School Planning and Construction Development Center of the Ministry of Education of China. Professional” pilot workstation. The professional position is based on providing students with diversified growth paths, promoting the reform of the training model integrating professional degree research, production, and research, and building an applied and compound talent training system.

㈢ How to identify the authenticity of an imtoken wallet

How to identify the authenticity of an imtoken wallet

1. If you want to download the genuine imtoken wallet, you can download it through official channels. , official website address: https://token.im

2. If players download through the Apple App Store, they can check that the developer [IMTOKEN PTE.LTD.] is genuine;

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3. imtoken wallet is a blockchain wallet APP, which is related to the security of the assets stored by users, so you must choose carefully when downloading;

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The above is about how to distinguish the authenticity of imtoken wallets. I hope it will be helpful to all users.

㈣ Why is it said that domestic blockchains are all lies

Blockchain unexpectedly ushered in a big explosion in 2018, and the world was suddenly filled with "get rich overnight" ” dream and the “copper smell” of various virtual currencies, many people have plunged into the “sugar-coating” wrapped in blockchain. Will they realize their dream of getting rich in the huge bubble wave, or will they be treated like "leeks" and be cut off and bankrupt?

At this juncture, some people in the industry pointed out, "Blockchain is a good thing, but the current domestic use of blockchain is a lie." Such people may have been "robbed" in the currency circle, and use these words as a declaration of their poverty. He may also be a business leader in the blockchain circle. After reviewing the situation, he can see the various shortcomings of the current development of the blockchain and draw a comprehensive analysis and conclusion.

No matter who they are, this kind of statement must come from the understanding of the current mixed status of the currency circle and the dim prospect of blockchain technology, and this is not difficult to understand. Binance and Huobi Pro, international large-scale digital asset exchanges, have repeatedly encountered hacker attacks, resulting in the loss of user assets. The protection of website security mechanisms and the maintenance of user information and data are extremely unsatisfactory.

People who have suffered losses in the currency circle have turned their attention to the chain circle. However, what disappoints users again is that although the chain circle has great prospects, due to immature technology, the blockchain in all walks of life The chain layout is still in the conceptual stage and it is difficult to take substantive actions. Not only that, even blockchain media based on fairness and facts have been exposed to pay to recommend coins to induce investors, and promote ICOs in disguise in the name of "private placement", which is actually an important service for "cutting leeks" tool.

Recently, the "blockchain+Tibetan tea" fund -raising fraud case of a blockchain company in Shenzhen has made the chain circles cool more, and the "world's first digital currency" is about to issue "the world's first original digital currency". The signboard defrauded more than 3,000 investors out of 307 million. However, blockchain companies of this scale and approach are emerging one after another, and it is difficult to distinguish the true from the false.

However, we admit that there are indeed deficiencies in the current domestic blockchain development, but can we generalize and label blockchain companies as "false"?

We should admit that every stage of development of emerging things is bumpy, and even criticized repeatedly. Just like the Internet 20 years ago, how many people could have predicted its earth-shaking development at that time? The same goes for blockchain.

Moreover, at present, domestic Internet giants such as JD.com, Tencent, Ali, etc. from all points such as financial trade, entertainment, leisure, logistics, and medical treatment; Blockchain has made breakthroughs in industries such as media and games one by one; the country has also introduced blockchain technology in strictly regulated industries such as energy and electricity; there are also Leou’s blockchain tourism layout and Ant Financial’s services in Xiongan New DistrictBlockchain technology house rental cooperation, etc. It can be seen from this that the blockchain layout is not a solo effort of unknown companies. Each has strong support from Internet giants and the government. Amid the collective excitement, how can the “scam” of blockchain gain confidence?

Although domestic blockchain companies are still in their infancy in terms of technology and application, this does not negate the blockchain itself and the overall situation of domestic blockchain. As the People’s Daily said, “Blockchain has an unprecedented bright future.”

㈤ What is the concept of blockchain? Is blockchain a scam? The most complete explanation of blockchain

What is the concept of blockchain?

On October 25, 2019, the country advocated the development of blockchain. Overnight, the blockchain concept became popular.

However, many people are hearing about blockchain for the first time.

So, what is blockchain?

Let’s take a look at it from an academic perspective:

Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms. Blockchain is essentially a decentralized database. As the underlying technology of Bitcoin, it is a series of data blocks generated using cryptographic methods. Each data block contains a batch of Bitcoin network transactions. Information, used to verify the validity of its information (anti-counterfeiting) and generate the next block.

In fact, blockchain is essentially a decentralized database.

Is blockchain the same as Bitcoin? Blockchain is not Bitcoin. The first application of blockchain is Bitcoin.

What are the characteristics of blockchain? Now let’s take a look at several characteristics of the blockchain:

1. Decentralization:

The most important feature of the blockchain is decentralization, and the blockchain system is different Based on a centralized database, it is not controlled by any person or entity. Through distributed storage, data is completely copied and distributed on multiple computers, and each node realizes information self-verification, transmission and management.

2. Non-tamperability:

The blockchain system also has the characteristics of non-tamperability. In the blockchain system, each node is the center and no information can be changed, not even the administrator can modify this information. The consensus mechanism of the blockchain has the characteristics of "the minority obeys the majority" and "everyone is equal". Only when more than 51% of the accounting nodes in the entire network are controlled, it is possible to forge a non-existent record. This situation is basically impossible, thus eliminating the possibility of fraud.

3. Openness:

In a blockchain system, all nodes in the network can easily access information. The foundation of blockchain technology is open source. In addition to private information being encrypted, blockchain data is open to everyone. Anyone can query blockchain data and develop related applications through public interfaces, so the entire system information is highly transparent. .

4. Independence:

Because the blockchain is decentralized, it can facilitate peer-to-peer transactions, so there is no need for a third party whether in transaction or exchange of funds. of approval.

Based on consensus specifications and protocols, the entire blockchain system does not rely on other third parties. All nodes can automatically and securely verify and exchange data within the system without any human intervention.

Let’s assume an environment: 6 people live in dormitory 188 of the university

There is a ledger in the dormitory for Xiao Li, who is good at calculation, to keep accounts.

In the beginning, when the dormitory sold paper boxes or bought some public items, Xiao Li would record them in the ledger. If Xiao Li wanted to enrich himself and made false accounts, there would be less money in the account books, but no one would know.

After all, there is already a general ledger room, who would have nothing to do to keep track of the ledgers?

However, one day, because Xiao Li took more, there were obvious errors in the account book. Now, he could no longer hide it, so Xiao Li had to admit his mistake and make up the money.

So, how to solve this problem?

If blockchain is used to solve the problem:

Everyone in the dormitory takes out a ledger, and every time a transaction occurs, everyone records it in their own ledger. , such problems will not arise, because everyone is keeping accounts and can see the transaction records and final results on the ledger.

Xiao Li can’t change, you can’t change, and neither can your lower bunk. No one can change it.

This is because the previous accounting model was a centralized accounting model, and the current accounting model is a decentralized accounting model, where everyone is the center and everyone is the accountant.

If someone wants to change it, it will obviously be ineffective if they only change the data on their own account book, unless they bribe three people.

So, is blockchain a scam?

With the emergence of the great benefits of blockchain, in a short period of time, the prices of blockchain-related assets have soared, and ordinary investors are becoming more and more interested in blockchain. And criminals have also taken aim at this. There are some criminals who put on the gorgeous cloak of "blockchain" and use the blockchain to commit fraud or issue digital currencies without permission, causing many people to think that the blockchain is a scam.

But it’s not. Blockchain is just a technology. If it can be used well, it will benefit the public and promote the development of the industry.

In particular, the application of blockchain is very wide and can be applied to almost everything of value to human beings.

Medical field: For example, when you go to the hospital for medical treatment, you can directly check the previous medical treatment in your own database, which greatly saves medical resources and saves medical expenses for repeated examinations.

Food traceability: Do you know where the food on your table comes from? Which logistics team is transporting it? This information can be tracked using blockchain. It can provide us with a single source of truth.

Supply chain application: For example, when we buy a product on Moubao, the product leaves the factory, goes to the distributor for logistics turnover, goes to the seller's store warehouse, and then reaches the consumer's hands. During these processes, if something goes wrong, only you will know about it, and others, especially consumers, will not.

Well, that’s all the relevant knowledge about the concept of blockchain is introduced here, I hope it can be helpful to you.

㈥ It only takes ten minutes to determine the authenticity of a certain virtual currency - a guide for beginners in the currency circle to prevent pitfalls

Recently, too many friends have asked me what currency (or What chain) is a real blockchain project? To be honest, I don’t want to offend anyone, and there is no need to lie. So here I will teach you a few simplest judgment methods. You can judge by yourself. It takes about three steps and ten minutes. about.

You don’t need to look at the fancy content on the homepage, just scroll to the bottom. Regular public chain projects have the following icon.

There is no kitten icon in the circle in the upper right corner. If not, they are basically fake blockchain projects. There is no need to look at the next two or three steps.

Then we click on the kitten and look at the three icons in the upper right corner. If both star and fork are 0, it is basically a copycat blockchain project.

If your page looks like this, look at the numbers behind all the stars and fork icons in it.

There is a website called coinmarketcap, which is the largest virtual currency collection center in the world. Just use the Internet. Enter the search bar found in the upper right corner.

Enter your currency name (full English name or English abbreviation). For example, if we enter ABC here, there will be several prompts. We choose one and see which one. If there are none, it means this currency Did not pass the qualification review. If there is, but you are not sure, you can look at the official website address in the upper left corner of the coin and click on it to see if it is consistent with the website mentioned in the first step.

If it does not pass the qualification review, or if there is a coin with the same name in it, butThe corresponding official website address is different, indicating that this coin is likely to be a fake blockchain.

Whether it is a public chain or a dapp, there will be varying degrees of open source source code. Generally speaking, public chains will be open source for desktop wallets, while dapps will be open source for smart contracts. Otherwise, it will not pass the review. The largest open source website at present is github (the icon looks like a kitten). Therefore, those that cannot even find the source code on the homepage are basically fake blockchain projects. This is the first step.

In order to confuse newcomers, many project developers will also make a so-called blockchain source code and put it on github, but blockchain developers can basically see it. The simplest way for beginners is to look at star and fork. The former indicates the attention of the project, and the latter indicates the number of clones of the project. If the sum of these two values ​​​​is less than 10, it basically has no technical content. Clone the project. This is the second step.

Another special note here is that there is only a mobile wallet and nothing else; or there is only a Chinese homepage but no English homepage and no open source address. Basically, it is 100% fake. Blockchain.

Here, I sincerely hope that everyone will take ten minutes to do a simple check before investing tens of thousands or hundreds of thousands.

㈦ How do I tell the authenticity of a Bitcoin I own?

1. Trading channels: Now we basically use two channels to buy Bitcoin: one is OTC trading, and the other is It's an exchange. OTC transactions require a third-party guarantee. After the other party receives the payment, it will be released to an address you provide. This address can be an exchange address or a wallet address. Exchange trading is the currency-to-crypto transaction of Bitcoin in the exchange. You place a buy and sell order and the transaction is completed very quickly. In fact, the exchange only plays an accounting role here, which can be simply understood as An item is added to your ledger, and an item is subtracted from the other party, so the transaction process is very fast. There is no transaction record on the blockchain during this process, it is just the exchange that keeps accounts from it. You can use the stock exchange analogy. Therefore, it is very important to find a reliable exchange or OTC trading channel first!
2. When withdrawing Bitcoin from an exchange or doing over-the-counter transactions, directly ask the other party to transfer it to the wallet address; why do you need to transfer it to the wallet to confirm it? There is a very important data structure utxo in Bitcoin (the utxo structure is to connect all records of the currency from birth to spending), which is usually said to be traceable; it is the utxo structure that ensures that Bitcoin cannot be counterfeited question.
[Extended Information]
The concept of Bitcoin was first proposed by Satoshi Nakamoto on November 1, 2008, and was officially born on January 3, 2009.
The open source software designed and released based on Satoshi Nakamoto's ideas and the P2P network built on it. Bitcoin is a P2P form of digital currency. Bitcoin exchangeEasy records are open and transparent. Peer-to-peer transmission means a decentralized payment system.
Unlike most currencies, Bitcoin does not rely on the issuance of a specific currency institution. It is generated through a large number of calculations based on a specific algorithm. The Bitcoin economy uses a distributed database composed of many nodes in the entire P2P network to confirm and record all Transaction behavior, and the use of cryptographic design to ensure the security of all aspects of currency circulation. The decentralized nature of P2P and the algorithm itself ensure that currency value cannot be artificially manipulated by mass production of Bitcoins. Design based on cryptography allows Bitcoin to be transferred or paid only by real owners. This also ensures the anonymity of currency ownership and circulation transactions. The total number of Bitcoins is limited. The currency system once had no more than 10.5 million in 4 years, and the total number will be permanently limited to 21 million thereafter.
In June 2021, El Salvador passed the "El Salvador Bitcoin Law", which makes Bitcoin legal tender in the country. On September 7, Bitcoin officially became El Salvador’s legal tender, becoming the first country in the world to grant legal status to digital currencies.
On September 24, 2021, the People's Bank of China issued a notice to further prevent and deal with the risks of speculation in virtual currency transactions. The notice states that virtual currencies do not have the same legal status as legal tender.
On November 10, 2021, the price of Bitcoin hit a new record high, approaching US$69,000 per coin for the first time.
In January 2022, Bitcoin continued to fall, falling below $42,000, touching a level not seen since September last year.

㈧ How to distinguish real and fake blockchains

There is a special group of people who like all kinds of financial investment projects and are looking for projects all year round, especially in the blockchain industry. In the field of blockchain, the background of creating huge wealth miracles has also inspired many capital projects under the cloak of blockchain, and these investors looking for projects have naturally become leeks for various complicated projects, turning the projects into Doing it as a career will end up hurting others and yourself! The reasons are that one is not enough knowledge, and the other is the wrong mentality. You can't always think about getting rich overnight. A truly good career is built down-to-earth through the accumulation of value over time. If you don't have such a correct mentality, you will be like the above. The people mentioned are always looking for projects to do, but in the end they hurt others and themselves; apart from spending money to buy lessons, the best way to improve cognition is of course learning, and the most efficient way to learn is of course to learn systematic knowledge. The Jiguang Community provides such a professional learning platform to popularize structured and systematic blockchain knowledge for free. Here we will first popularize the anti-fraud knowledge.

First, let’s be clear about one fact. There is no truly mature currency circle in China, and most of them are capital projects disguised as blockchains. Therefore, when making a choice, you must understand and be cautious. The key is to protect your principal!

Second, how to distinguish true from false:

Judging from the entry threshold, there is no access threshold for real blockchain projects.Anyone can participate, regardless of the size of their assets, and they can enter and exit freely. They don’t need your principal, and there is no custody of funds. The assets will always belong to the users.

From the perspective of income distribution, the real benefits of the blockchain It is what users earn through their contributions rather than the so-called pulling people’s heads. It can truly create value and generate value, rather than a zero-sum game

Third, how to distinguish whether it is truly decentralized:

< p>From the product side, all codes must be open source and put on the chain; they must be authoritatively audited; all data is on the chain, and user data must not be stored or infringed upon.

From the governance side, it must be initiated and run by the DAO organization ;Have its own governance group;Have its own proposal mechanism