区块链钱包宣传片视频,区块链钱包宣传片文案

关键词一：区块链钱包

区块链钱包（Blockchain Wallet）是一种用于存储数字货币（如比特币）的软件，它可以帮助用户更安全、更快捷地管理和使用数字货币。由于区块链技术的特性，区块链钱包可以保护用户的资金安全，并且可以让用户在网上任何地方使用数字货币，而无需担心资金的安全性。

区块链钱包主要有两种类型：热钱包和冷钱包。热钱包可以在网络上实时交易，但是安全性较低；而冷钱包则不能实时交易，但是安全性更高。因此，用户可以根据自己的实际情况，选择适合自己的钱包类型。

另外，区块链钱包还提供了一系列的安全措施，以防止未经授权的访问。例如，它可以使用多种加密技术来保护用户的个人信息和资金安全，而且还可以使用双因子认证来确保用户的支付安全性。

总之，区块链钱包是一种安全可靠的数字货币存储工具，可以帮助用户更安全、更快捷地管理和使用数字货币。

关键词二：区块链技术

区块链技术（Blockchain Technology）是一种分布式数据库技术，它可以用来存储和管理数据，并且可以保证数据的安全性和可靠性。

区块链技术的核心原理是“分布式账本”，它可以将所有交易的信息存储在一个公开、可信赖的网络中，从而保护用户的数据安全性和隐私安全性。而且，区块链技术还可以使用加密技术来保护用户的资金安全性，从而保证用户的财产安全。

此外，区块链技术还可以用来解决传统中心化系统中存在的问题，如数据安全性、信息传输效率低等。由于区块链技术的特性，它可以让用户更安全、更快捷地使用数字货币，而无需担心资金的安全性。

关键词三：双因子认证

双因子认证（Two-Factor Authentication）是一种安全认证技术，它可以确保用户的账户安全。双因子认证需要用户提供两种认证信息，才能进行登录或支付操作。

双因子认证通常包括两种认证信息：第一种是用户的账号和密码，第二种是一次性验证码（OTP）。用户在登录或支付时，需要同时提供这两种信息，才能确保账户安全。

双因子认证可以有效防止未经授权的访问，从而保护用户的个人信息和资金安全。因此，越来越多的网站和应用程序都开始采用双因子认证，以保护用户的安全性。

总之，双因子认证是一种安全可靠的认证技术，可以有效防止未经授权的访问，从而保护用户的个人信息和资金安全。

请查看相关英文文档

① What is the use of blockchain and what can it do?

Let me tell you briefly and roughly what blockchain is and what it can do?

What is blockchain? How does it work?

Bitcoin has become the trend of the modern Internet - and with it, blockchain. People say blockchain technology will lead to fundamental changes in how the internet works, how businesses work, and everything else.

But what is blockchain? Most of us don’t know much about blockchain. If you want to understand blockchain, you can read this article carefully.

What is blockchain? The editor will give a simple answer explanation

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.

Bitcoin and Blockchain

Let’s take Bitcoin as an example

Bitcoin transactions

But the transaction must be verified. This is where blockchain technology gets a little complicated. Every Bitcoin wallet (we'll do that in a second) has a public key and a private key.

You use your private key to send transaction requests to other members of the network and confirm that you have cryptocurrency in your account. If they do so, they allow transactions to be registered on the ledger.

The mechanics of a public/private key system are complex, but what it boils down to is that every transaction is verifiable and secure.

However, the entire system is computationally expensive. Everyone who updates the ledger needs to have a lot of authority to verify transactions and modify the ledger. This is where mining comes in. Those who verify and modify use their own computing resources, and they receive a small transaction fee each time.

And they are using a lot of electricity to do it.

This way, every transaction is verified and added to the ledger, and the person who verified and modified it gets paid. This is a reasonable system.

At the same time, it is also very safe. To change a single block, you must change every block after it. After all this work is done, verification will fail because other copies of the chain will show that someone tampered with one.

How to define blockchain is a difficult question

While the mechanisms behind blockchain technology are not always intuitive, it seems that explaining what blockchain is Not too difficult. But what we describe here is just the traditional definition.

We can use this special type of blockchain for a wide range of applications; such as cryptocurrency, sharing medical information, sending secure messages, etc. But more blockchain-like technologies are being developed for other uses.

For example, a company might use an internal blockchain to manage issue tracking in software. Each block on the chain may represent an issue, and users can publish updates to the network. But is this blockchain? In this case, the ledger is not public, it is only visible within the company.

Some people would say this is not blockchain.

Other technologies like blockchain are not encrypted. Are they still blockchain? What if it was centrally managed but used other blockchain features? What defines the lowest level of blockchain technology? Questions about theseThere is no consensus on the topic yet.

What is a blockchain wallet?

We typically hear people talking about Bitcoin wallets, Ethereum wallets, and other cryptocurrency-specific wallets. But wallet technology can be used in any system that uses blockchain.

A wallet is a piece of software or hardware that “holds” your cryptocurrency. But it doesn't actually hold anything, it's just a place to store the public and private keys. This information allows you to access the currency as shown on the public ledger.

The wallet is the only record of your keys. Therefore, if you lose it, you will no longer have access to your cryptocurrency.

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 need to understand the mechanism behind this technology, but you do need to understand that it may completely change our lives in 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 are inseparable from the blockchain just like you are inseparable from the Internet now, you will be surprised to find that this decentralized accounting technology has simplified the complexity and become part of your lifestyle.

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② Tchain: a new generation of bottom-level public chain created by Silicon Valley elites

Tchain is a very creative bottom-level chain The public chain integrates a number of innovative technologies and is determined to create an underlying public chain that can truly realize decentralized commercial-level applications. The founding team of Tchain are all industry veterans with many years of experience. It can be said that Tchain is a star project born with a golden key.

Tchain’s mission is to accelerate the world’s transformation into a commercial application-oriented blockchain network. Team members are unanimously optimistic about the future of the decentralized world and are committed to accelerating the transition from centralized business to blockchain.Transform and work tirelessly. The goal of the Tchain team is ambitious. To achieve this goal, the team has formulated a detailed development plan so that investors can clearly see the future of Tchain, the ambition of Tchain, and the value of Tchain.

As early as July, the Tchain Research Foundation UBL (Universal Blockchain Ltd) was established in the United States with a registered capital of US$100 million. Rory, the core founder of Tchain, serves as a member of the board of directors. The foundation is mainly responsible for the development of Tchain public chain technology and the global docking of Tchain ecological resources, paving the way for the official launch of the project.

In mid-August, the Tchain team hired American Legal Counsel as a special legal team for the public chain to be responsible for the compliance of public chain operations and prepare legal documents for subsequent operations: including ecological investment and financing, and external cooperation. , legal documents for currency listing on first-line exchanges, etc., to protect Tchain’s global ecological layout.

In September, the Tchain team officially released the Tchain white paper in Chinese and English, which elaborated on Tchain’s core technologies such as multi-layer side chains, resource isolation, and one chain, one scenario, etc., which attracted great attention from industry insiders. , many well-known media rushed to report it. At the same time, the founding team attended multiple offline exchange meetings, shared the goals, vision and motivation of creating Tchain with fans, and announced the official launch of the Tchain project.

In October, the internal beta versions of Wallet 0.1 and Testnet 0.1 were released at the same time. Testnet 0.1 supports basic transactions including the main chain + multi-level side chain infrastructure, and will be announced in the weekly report. The team's detailed development progress allows the project's development progress to be monitored, which further improves the development efficiency of the development team and ensures the early completion of the project.

In November and December, the global private equity early bird phase was officially launched, Tchain technology promotional video was launched, and public versions of Tchain main chain, wallet and blockchain browser were launched. In the private placement stage, the project team will launch multiple airdrop activities to distribute free candies to early fans, who can then directly mention them to the exchange for trading in the later stage.

Starting from January 2019: It will be launched on many mainstream exchanges around the world, and the main network and main network mining pool will be online. Open up the Tchain ecosystem, establish Tchain Stars and Tchain STO sub-brands, help the Tchain ecosystem, and make important contributions to the development of everyone's pass and enterprise pass.

The whole year of 2019: the first batch of DAPP applications, blockchain applications and TOKEN on the T-chain main networkProjects are launched one after another, opening up the ecological value of T chain and jointly promoting the positive cycle of TCH value.

From Tchain’s development plan, we can see the down-to-earth work style of the Tchain team. We believe that with Tchain’s excellent technical strength, rich market experience, and numerous fan groups, it will compete in the field of public chain competition. On the track, Tchain will definitely be able to spread its wings and fly high, achieving the ambitious goal of allowing large-scale commercial-level decentralized applications to run on Tchain.

③ What is blockchain and what is digital currency

Blockchain is an important concept of Bitcoin and is essentially a decentralized database.
At the same time, 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 transaction information, which is used to verify the validity of its information. (anti-counterfeiting) and generate the next block. Digital currency is an unregulated, digital currency that is usually issued and managed by developers and accepted and used by members of a specific virtual community. The European Banking Authority defines virtual currency as: a digital representation of value that is not issued by a central bank or authority and is not linked to a legal currency, but which, because it is accepted by the public, can be used as a means of payment or can be transferred, stored or traded electronically. .
The content of this article comes from: China Law Publishing House's "Complete Knowledge of Legal Life Common Sense Series"

④ How to develop blockchain and what is needed to develop a digital currency exchange

You Okay, what you want to ask in this question is how to develop blockchain? Or how to develop a digital currency exchange? Blockchain is a technology and a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms. Developing a digital currency exchange requires the use of blockchain technology. Here is a general process for your reference:

Choose a jurisdiction that suits your needs and budget.

Open your company and open a company bank account (the account is for business transactions, not for the storage of client funds).

Deposit funds into your digital currency exchange.

Purchase/develop digital currency exchange system.

Create a token or coin that can be traded with BTC, ETH, etc. Supporting multiple digital currency trading pairs and multiple legal currency transactions, the more trading pairs can be provided,

Establish a compliance system and retain relevant records, such as: KYC, AML and other rules.

Hire employees who focus on compliance and banking business (in addition to the original marketing staff, additional hires are required), conduct self-regulation, and prepare for future application for international licenses.

Apply or negotiate to obtain a digital currency license in the region where you will operate. Currently, many well-known digital currency exchanges have not obtained licenses.

Establish a debit card or other withdrawal system to facilitate exchange users to withdraw money without using wire transfer.

Create a USD-backed pegged token (similar to USDT) that can be stored in an electronic wallet or used for trading. The main purpose of this anchored token is to reduce transaction fees caused by users' wire transfers or exchange withdrawals. The pegged token needs to be fully reserved in a U.S. bank.

Apply for digital currency licenses in certain jurisdictions where your customers are located. That is, if you plan to list in the UK, you will need to obtain a UK license.

Open a bank account specifically for handling user funds.

Of the above tasks, the most difficult is step 12 - opening a bank account dedicated to handling user funds. The preparation work from step 1 to step 11 is crucial to step 12. The improvement of preparation work will help you successfully obtain a bank account. Currently, about 80% of assistance requests are related to the final opening of a bank account specifically for handling user funds. . If you do not have your own development team to develop a digital currency exchange, it is recommended that you choose a professional service provider like MasterDAX, which is very helpful in terms of time and personnel costs.

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⑥ The importance of blockchain wallet

Now more and more people are beginning to participate in blockchain projects, and those who understand and participate in it believe that they will Using a blockchain wallet, the "wallet" here refers to a virtual tool used to store and use virtual currency.

Wallets are mainly divided into cold wallets and hot wallets, which include private keys, public keys and auxiliary words. Next, I will explain their differences and functions in detail.

Cold wallet: A cold wallet refers to a wallet that is not connected to the Internet and stores digital currency offline. Users generate digital currency addresses and private keys on an offline wallet and then save them. The cold wallet integrates functions such as digital currency storage, multiple transaction password settings, publishing the latest market conditions and information, and providing hard fork solutions, which can effectively prevent hackers from stealing.

Hot wallet: Hot wallet refers to a wallet that needs to be connected to the Internet. It is more convenient to use, but now the network is more complex, there are many phishing websites, and there are risks, so it is difficult to use a wallet or exchange. It is best to set different passwords and enable secondary authentication to ensure the security of your assets.

In summary, cold wallets are more secure than hot wallets.

Private key: The private key is a string of data generated by a random algorithm. It can calculate the public key through an asymmetric encryption algorithm, and the public key can then calculate the currency address. The private key is very important, as the password is hidden from all but the owner of the address. Blockchain assets are actually on the blockchain. The owner actually only owns the private key, and has absolute control over the blockchain assets through the private key. Therefore, the core issue of blockchain asset security lies in the storage of the private key. The owner must keep it safe. Compared with the traditional form of username and password, the biggest advantage of using public key and private key transactions is to improve the security and integrity of data transmission. Because of the corresponding relationship between the two, users basically do not have to worry about the data transmission process. The possibility of being intercepted or modified by hackers. At the same time, because the private key encryption must be decrypted by the public key it generates, the sender does not have to worry about the data being forged by others.

Public key: The public key appears in pairs with the private key. Together with the private key, they form a key pair and are stored in the wallet. The public key is generated from the private key, but the private key cannot be derived from the public key. The public key can obtain the wallet address through a series of algorithm operations, so it can be used as a certificate of ownership of this wallet address.

Mnemonic phrase: The mnemonic phrase uses a fixed algorithm to convert the private key into more than ten common English words. The mnemonic phrase and the private key are interoperable and can be converted into each other. It is just a friendly format for the private key of the blockchain digital wallet.

Keystore: MainIt is more common in the Ethereum wallet App (Bitcoin is similar to the Ethereum Keystore mechanism: BIP38), which is obtained by encrypting the private key through the wallet password. Unlike the mnemonic, it can generally be saved in text or JSON format. storage. In other words, Keystore needs to be decrypted with the wallet password before it is equivalent to the private key. Therefore, Keystore needs to be used with the wallet password to import the wallet. When a hacker steals the Keystore, without a password, it is possible to unlock the Keystore by brute force cracking the Keystore password. Therefore, it is recommended that users set a slightly more complicated password, such as adding special characters, at least 8 characters, and make it safe. storage.

In summary: The function of the wallet is to protect our private key. The private key is the full authority to control the assets. Only those who have the private key can use the virtual currency in this account. When using the wallet, remember not to disclose your wallet's private key, mnemonic phrase, Keystore and other information to others. This information is important information that can directly steal your digital assets.

Things to note when using the wallet:

1. Make a backup copy of the private key and mnemonic phrase. It is best to write a handwritten copy on your mobile phone and save it.

2. Do not click on unknown websites easily.

3. Do not take screenshots or take photos to save.

In short, the most important thing is to keep your private key.

⑦ Digital RMB salary payment! See how blockchain technology can "protect" your wallet

On September 10, Di Gang, deputy director of the Digital Currency Research Institute of the People's Bank of China, spoke at the parallel forum "Area" of the 2021 China (Beijing) Digital Finance Forum "Blockchain Empowers the High-Quality Development of the Digital Economy" stated that the Central Bank's Digital Currency Research Institute is actively exploring the application of digital RMB blockchain. Previously, Xiongan New Area applied the fund payment blockchain system to realize the salary payment of builders. This system not only saves salary transaction costs, but also makes transaction data open and transparent, ensuring the authenticity and security of transactions.

The principle of applying blockchain to digital renminbi

The capital payment blockchain system uses blockchain as the underlying system, uses digital renminbi to realize the value transfer of wages, and has blockchain Distributed storage, anonymous encryption, peer-to-peer transactions, instant settlement and other features.

1. Distributed ledger

A distributed ledger is a database distributed across multiple nodes. Each node stores the same copy of the ledger and shares ledger information. After the digital renminbi is added to the blockchain, it can not only confirm and register the digital currency, improve the security of data and systems, but also record ledger transaction information on different servers, creating a distributed and reliable system for banks.A publicly viewable network that ensures transaction data is accurate and transparent.

2. Peer-to-peer transactions

The decentralized nature of the blockchain means that it is not controlled by the server. Each node is equal and jointly maintains the entire network of nodes. data information. In addition, each node follows the rules of the cryptographic algorithm and does not require endorsement by a third party or trust agency. Under this feature, digital RMB can be directly traded point-to-point, realizing the simultaneous transfer of transaction information and value.

3. Smart Contract

Simply put, a smart contract is a digital agreement that uses algorithms to write contract terms and deploys them on the blockchain to automatically execute according to rules. When distributing digital RMB wages, the construction general contractor initiates payment settlement on the blockchain system and uploads the builder's wallet ID and salary amount to the chain. The system will ensure it in the form of smart contracts under open and transparent conditions. Transaction security; during the transaction, the transaction note will be broadcast throughout the network to ensure that the transaction information is difficult to tamper with; after the transaction, the smart contract will be executed and the digital renminbi will be automatically transferred from the construction party's wallet to the builder's wallet. In this process, the two parties directly transferred the value of digital renminbi, saving the cost of intermediate links and achieving point-to-point instant settlement.

Advantages of blockchain + digital renminbi

Compared with traditional electronic payments such as WeChat and Alipay, digital renminbi does not rely on banks. Users can obtain storage, payment, and Inquiry and other services. When transferring money, digital renminbi supports offline payment. Users only need to scan codes, remittances, touch and other interactive methods to realize the transfer of funds, avoiding delays in arrival due to network obstacles, and realizing "transaction and settlement". ". In addition, digital RMB wallets have lower requirements for users, and users do not need real-name authentication, which reduces the risk of information leakage from banks, third parties and other institutions. With the support of blockchain technology, the advantages of digital renminbi are gradually highlighted.

In addition to payroll, the application scenarios of blockchain have also expanded to cross-border payments, domestic letters of credit and other financial fields. In short, blockchain technology has built a trustworthy ecological environment for us, improved the transparency and authenticity of assets, and ensured the security of information data.

Expert: Zhou Kunpeng, Professor of School of Journalism and Communication, Zhengzhou University

⑧ Beginner’s guide to investing in digital currency (blockchain), just read this article

Blockchain and digital currency investment have higher entry barriers than other investment methods. Many friends want to invest in digital currencies but don’t know where to start or what to learn. Although 51Coins has updated a lot of relevant knowledge in the "Beginners Playing Coin" section, it is not systematic enough

This time we will systematically organize the information related to blockchain and digital currency investment. In summary, let everyone understand and invest in digital currency faster and more conveniently

1. Understand blockchain and digital currency

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No matter what you invest in, you must understand it, and the same is true for blockchain and digital currency. There are many introductions about blockchain on the Internet, some are too profound, and some are not comprehensive enough. I personally think the video "100 Questions on Blockchain" produced by Huobi is better

100 videos , all of which are blockchain-related knowledge, including: the birth of Bitcoin, operating principles, blockchain FAQs, mining, wallet introduction, etc., and are all in the form of animated videos, making it easier for everyone to understand. Although the explanation is not detailed enough, it can give you a preliminary understanding of digital currency and blockchain

2. Choose a trading platform

After understanding digital currency, you can try to use the trading platform Purchase a small amount of digital currency and experience the process. The purchase and sale of digital currencies must be completed through a trading platform, which is equivalent to a stock exchange in the stock market. It is recommended to choose a large trading platform for the trading platform, which has a comprehensive range of currencies, convenient transactions, and guaranteed fund security

The following three platforms are recommended: Binance, Huobi, and OKEX (ranked in no particular order)

< p> 3. Choose a wallet

If digital currency is compared to cash, a wallet is equivalent to a bank card, used to store digital currency. There are many types of wallets, and the most commonly used ones now are mobile APP wallets (light wallets). Wallets are also divided into types. Different similar digital currencies cannot be transferred to the same wallet. For example, if imtoken is an Ethereum wallet, it can only store Ethereum and tokens issued based on Ethereum, but not other currencies

< p> There are also wallets that claim to support all digital currencies, but most of these wallets are not yet complete.

Of course, after we buy digital currency, we don’t need to deposit it in the wallet, but directly put it in the exchange account, which can save the handling fee and not be so troublesome. Large exchanges such as Huobi and OKEX are relatively It is safe. I personally basically put digital currencies on exchanges

4. Determine the investment plan

Before investing in digital currencies, we must first determine our investment plan and plan to invest. How much money, how much loss you can accept, what is the expected return, and how long the investment time frame is, determine it before investing. Digital currency is a high-risk, high-yield investment product. In the novice stage, you can invest only your spare money that does not affect your life. There is no limit on the amount of investment, and the minimum investment is a few hundred yuan.

Wait until you truly understand the market before making the appropriate investment. Increase the investment amount, but remember to keep the investment amount within your tolerance

5. Select the investment currency

After selecting the trading platform and confirming the investment plan, you can purchase Digital currency, so which one should we buy among so many digital currencies? When buying coins for the first time, it is recommended to choose mainstream coins. You can choose a few coins that you like among the top 20 in the market or recognized value coins

Find out what these coins are for.Is there any actual value, what news has recently affected the currency price trend, etc.

Understand these issues before buying, and be sure to pay attention to the purchase price before buying

6. Commonly used Tools and websites

1. Non-small accounts: You can view information related to various currencies and exchanges, including currency prices, historical prices, increases and decreases, circulation volume, rankings and other information

2. AICoin: The function is similar to that of non-small accounts. The K-line of aicoin is very convenient and easy to use. It is the first choice for viewing K-line charts

3. Coin World: Real-time updates related to various blockchains and digital currencies News information

4. Golden Finance: a relatively comprehensive blockchain media platform, including news, news, quotes, celebrity columns, etc.

7. Learn more relevant knowledge

Even if we have initially learned about digital currency investment with the above 6 points as a foundation, we still need to learn more knowledge if we want to truly make money by investing in digital currencies. The two most important points are to deepen the understanding of the blockchain and technical analysis (K line)

These two are too broad and cannot be learned overnight, so I will not introduce them, K You can find a lot of online knowledge online. As we invest longer, understand more currencies, and come into contact with more related matters, we will gradually deepen our understanding of blockchain.