区块链在支付中的作用有哪些,区块链在支付中的作用是什么

区块链在支付领域发挥着重要作用，其中包括：数字货币、智能合约、去中心化支付等。今天我们就来深入探讨区块链在支付中的作用，关键词有：数字货币、智能合约、去中心化支付。

数字货币是指使用区块链技术创建的一种虚拟货币，它是一种便捷、安全的电子货币，可以用于在线支付、交易等。与传统货币不同，数字货币是由区块链技术支持的，具有去中心化、不可篡改、安全可靠等特点。使用数字货币进行支付，不仅可以大大提高效率，而且更加安全可靠，给用户带来更多便利。

智能合约是基于区块链技术的一种智能合约，它可以自动执行合约，无需人为干预，可以有效地提高支付效率。智能合约是一种可编程的自动执行合约，可以像程序一样运行，将交易双方的条款和权利义务转换为可执行的代码，从而实现自动化的支付管理。智能合约可以有效地降低支付成本，提高安全性，改善支付效率，为双方提供更好的服务。

去中心化支付是指使用区块链技术实现的一种支付方式，它不需要第三方支付机构，双方可以直接进行支付，极大地提高了支付的效率和安全性。去中心化支付是基于区块链技术实现的，它可以将交易数据分布式存储在多个节点上，每个节点都可以记录交易数据，实现去中心化的支付管理。去中心化支付可以更加安全可靠，且无需第三方支付机构，可以大大降低支付成本，提高支付效率，为双方提供更多的便利。

从上述介绍可以看出，区块链在支付中发挥着重要作用，数字货币、智能合约、去中心化支付等技术都可以有效地提高支付效率，提高安全性，为双方提供更多的便利。

① What applications can blockchain have in many industries

The biggest feature of blockchain technology is decentralization, and this feature will reduce a lot of costs in the banking industry. cost.

First of all, decentralization means that intermediaries are no longer needed to establish a trust mechanism between banking systems, saving intermediary costs.

Secondly, the development of digital currency will make it possible to realize real-time digital transactions in banks. For example, in bill transactions, bank bill transactions have always relied on a third party to realize the transfer of valuable certificates. Even electronic bill transactions require interactive authentication through information from the central bank's ECDS system. Blockchain technology can realize point-to-point transfer of value and no longer requires centralized system control. This not only speeds up the speed of ticket transfer, but more importantly, it can reduce errors caused by human factors and reduce processes. Naturally, it will reduce the bank's demand for personnel and save the bank's labor costs.

Finally, it will also have an impact on clearing and settlement. The bank's clearing and settlement business has always been completed by central clearing, which is inefficient. Settlement through blockchain technology will greatly improve the efficiency of banks.

Blockchain technology also plays a major role in banks’ cross-border payment services. Today, when global trade is highly developed, cross-border payments are becoming more and more frequent, and banks often act as third-party services in cross-border trade, such as electronic transfers, asset custody, etc. However, cross-border payments generally take about 2 days to arrive, which is very inefficient and reduces the utilization of funds in transit. In blockchain technology, both parties of cross-border payments can be completed in a point-to-point manner, achieving round-the-clock payment and real-time arrival, thereby speeding up clearing and settlement, thereby improving the efficiency of bank processing business.

Another feature of blockchain technology is de-risking. Banks can build their own blockchain, which can ensure that bank customers’ transaction information and transaction records are true and valid and will not be compromised. Without any tampering, the bank can effectively identify the customer's information, understand all aspects of the customer's situation, identify the customer's abnormal transactions, prevent being deceived by the customer, thereby reducing the bank's supervision costs.

② Application of blockchain in the financial field

1. Application and development of blockchain

Some Internet, Internet start-ups and traditional financial industries Started to try out applications in some projects

2. Domestic financial institutions are testing the waters of blockchain

Various financial institutions are testing the waters one after another, and they are basically in the conceptual experimental stage and have not yet reached a large scale. Commercial scale.

3. Panorama of the application of blockchain in the financial field

4. Ghostwriting

5. Digital bills

Bills are an important part of the financial market An important financial product, it has the dual functions of payment and financing, has the characteristics of high value, and bears bank credit or commercial credit. Once a bill is issued, its face amount, date and other important information cannot be changed. Bills also have circulation attributes and can be accepted, endorsed, discounted, rediscounted, collected and other transactions within a specific life cycle. Once the transaction is completed, the transaction cannot be revoked. There are two characteristics in the circulation of bills: First, the circulation of bills mainly occurs through bank acceptance bills, and the number and circulation of commercial acceptance bills are small; second, each bank independently conducts credit granting and risk control on the bill business, and a single bank's Risk control results may affect other participants in the bill market transaction chain.

The experimental production system of the digital bill trading platform uses SDC (Smart Draft Chain) blockchain technology to protect privacy with the help of homomorphic encryption, zero-knowledge proof and other cryptographic algorithms. The Byzantine Fault Tolerance Protocol (PBFT) performs consensus and uses a see-through mechanism to provide data monitoring.

The experimental production system includes four subsystems: stock exchange, bank, enterprise and monitoring: the stock exchange subsystem is responsible for managing the blockchain and monitoring the digital bill business; the bank subsystem has Digital bills have business functions such as acceptance and receipt, discount signing, rediscounting, and collection and repayment; the enterprise subsystem has business functions such as issuance, acceptance, endorsement, discounting, and prompt payment of digital bills; the monitoring subsystem monitors the status of the blockchain in real time and business happenings

6.

③ Main functions of blockchain wallet

Usually a wallet will include the following functions: Support the generation of mnemonic words , Keystore file, and private key to create a wallet account. Supports exporting wallet account mnemonics, private keys, and Keystore files. Supports multiple wallet account management, account balance inquiry and transfer functions (QR code scanning support). Supports ERC20 tokens (balance display, transfer, token price display) and supports real-time display of currency prices in fiat currencies (USD and RMB). The historical transaction list displays the created account. The presentation form of the blockchain wallet is divided into address and account number, which we collectively refer to as the account number here. Accounts in different blockchains are different, and the degrees may also be different. The creation costs of different blockchain accounts are also different. For example, Ethereum and Bitcoin accounts are free, but EOS accounts require a certain fee to create. becauseCreating a blockchain account is a complex process, and the existence of the wallet is to help users simplify these processes. Generally, during the process of creating an account, the wallet will guide the user to back up the private key or mnemonic phrase, and then conduct secondary verification to ensure that the user's backed up private key or mnemonic phrase is accurate. On blockchains that require payment to create an account, wallets will generally help users complete the payment process using traditional payment tools to reduce user difficulty. Digital asset management Digital assets mainly refer to various tokens on the blockchain. The existence of the wallet greatly facilitates users to manage the assets they own, including transfers, collections, viewing asset details, Transaction details, etc. The function is similar to that of a bank APP. You can see what assets you currently own, how much they are, and perform operations such as transferring your assets. It should be noted that assets between different blockchains cannot be transferred directly, that is, you cannot transfer BTC (Bitcoin) to an Ethereum account, nor can you transfer ETH (Ethereum) to a Bitcoin account. Digital Asset Transactions The digital asset transactions currently supported by the wallet mainly include the following three situations: currency-to-currency exchange, exchange transactions, and OTC transactions. Coin-to-coin exchange Through currency-to-coin exchange, assets on different blockchains can be exchanged. For example, you can directly exchange the BTC (Bitcoin) you own into EOS. General transactions can only be carried out in the form of a basic pair, and then the basic pair can be traded into the final destination currency. For example, if I want to change from A to C, I need to go through intermediary B, A -> B, B -> C; and currency exchange simplifies this process, directly converting A into C to participate in ecological construction. Currently, some public chain designs , all encourage users in the ecosystem to actively participate in the construction of the public chain ecosystem. The main forms include node voting, referendum, staking, etc. Node voting takes EOS as an example. EOS has a total of 21 super nodes. Users can vote for up to 30 nodes by staking their EOS. The purpose of voting is to allow users to choose those who can contribute to the development of the ecosystem. nodes, thereby promoting the stable development of the ecology. Referendum referendum refers to the blockchain ecosystem where participants can initiate proposals that they think are beneficial to the community, and the entire blockchain currency holders will vote. When the number of votes exceeds a certain standard, the proposal will automatically take effect. The referendum method is conducive to community users actively participating in blockchain governance. StakingStaking is the Chinese name for equity pledging. Currently, some public chains adopt the form of Staking to encourage currency holders to pledge Tokens and thereby generate stable nodes. For example, COSMOS staking can enable the pledger to obtain a certain annualized income (settled in pledge currency), similar to investing in a current financial management product in a bank. Experience Dapp application DApp is the abbreviation of Decentralized Application, translated as decentralized application, which refers to application development with blockchain as the underlying layer. At present, DApps are mainly concentrated in Ethereum and EOS, TRON, IOST and other blockson the chain. The relationship between DApp and the underlying platform is like the relationship between APP and iOS and Android systems. For example, EOS DApp cannot run on the underlying ETH, just as Android APP cannot run on the iOS system. You can experience the decentralized finance MakerDAO on ETH in your wallet, experience starting a competition in EOSRacing and win EOS rewards, or you can mine and manage money in the Liebi mining pool on IOST. At present, some large-scale games exist in the form of third-party independent APPs. When experiencing DApps in the form of these APPs, you also need a wallet as a medium for login and transaction authorization. Asset appreciation wallets naturally have financial attributes. The current wallet has integrated a variety of financial tools and functions including mining pools, financial management, mining, project investment, etc., which can meet the needs of users for asset appreciation. Mining pool: Currently there are two main methods of mining: POW mining and POS mining. POW (Proof of Work) is computing power mining, which we are familiar with such as BTC (Bitcoin) and ETH (Ethereum) mining; POS (Proof of Stake) mining is imitating POW computing power mining, and currency holders can Mortgage tokens to validator nodes to receive reward dividends. At present, the mining pool of the wallet is basically based on POS mining. Some wallets also support the purchase of cloud computing power for BTC (Bitcoin) mining. Financial management: The financial management products in the wallet are very similar to traditional financial products. The only difference is the settlement method. An estimated rate of return is usually agreed upon. After the user uses the Token to purchase the financial product, it will be settled regularly according to the agreed settlement date, and can be withdrawn or renewed upon expiration. Mining: Mining is mainly based on DApp mining. The wallet integrates some DApp mining machine products. Using the mining machine can quickly and easily obtain the tokens you want to mine. Take the recently popular EIDOS as an example. EIDOS mining machines can help users realize automatic transfer mining. These mined Tokens can be sold on exchanges to obtain profits. Project investment: Take HOO Labs of Hufu Wallet as an example. You can use USDT to support the project and obtain the project's Token in a certain proportion based on the amount of USDT supported.

④ Blockchain + payment, will it be the second half of the blockchain trend?

Blockchain is a revolution in production relations and a change in the financial market. In the world of blockchain, no one can deduct the price difference. In blockchain payment, customers settle directly with merchants. The merchant's money arrives instantly. This is the meaning of blockchain payment. Blockchain + payment makes payment fairer, more transparent and lower cost.
Many people believe that 2018 is the year of “national currency speculation”. Some people get rich overnight, while others vomit and swallow. Despite the continued downturn in the currency circle, the popularity of blockchain technology has never diminished, and many investors have turned their attention to various blockchain projects. Various companies are also arranging and setting up blockchain companies to intervene in this field.However, in fact, although more and more companies are deploying blockchain business, most businesses have made no significant progress and are basically unprofitable. Even due to the collapse of Bitcoin in November last year, there has been The operation cannot continue, and layoffs and energy reduction are the phenomenon.
Of course, in addition to the "blockchain craze", there are still many rational blockchain projects, especially in the cross-border payment field with a 2 trillion market, which contains huge development opportunities. Listed companies such as IBM, EDP, and BATJ have also been deploying blockchain + payment businesses for a long time. Taking EDP Company (Experimental
Data
Processor) as an example, as early as Bitcoin and blockchain Technology has been studied intensively since its birth.
Earlier, EDP was a leader in the field of electronic data, and had served many American online payment service providers, banks, financial institutions, etc., and also cooperated with some e-commerce websites. It is precisely because of EDP's rich experience in these fields that it is well aware that there are obstacles in the payment field that restrict the development of cross-border payments such as cost, efficiency, and processing speed. To this end, EDP has created a blockchain payment platform - EDT. What EDT wants to do is to provide real value to e-commerce platforms and consumers, so that everyone (currently, EDT's target market is mainly Chinese around the world) can really Use and are willing to use cryptocurrency for payment operations, not just limited to currency speculation and speculation.
In fact, many defects in the traditional payment field are due to the fact that traditional payment methods have many intermediate links and rely on third-party institutions. The entire payment system needs to pay corresponding fees, which greatly affects the effect of payment. The distributed network structure of the blockchain provides a mechanism to maintain consensus between buyers and sellers without contacting the central organization. The EDT blockchain payment platform can function as a super ledger. All transactions on the blockchain network The nodes jointly witness each transaction and conduct distributed records at the same time to ensure the completion of the transaction. In theory, seamless, fast, and convenient payment transactions can be achieved.

⑤ How to apply blockchain in cross-border payments

The blockchain cross-border payment application model actually uses the blockchain network to integrate traditional financial institutions, foreign exchange market makers, Liquidity providers, etc. join the payment network and build a payment gateway. Through the payment gateway, the flow of digital assets on the blockchain can be connected with the legal currency in reality, so that the legal currency can be converted into digital assets on the blockchain to facilitate subsequent payment transfers. Through the network connector in the blockchain payment network, traditional market makers, remittance banks, remittance banks and other institutions can be connected, eliminating intermediate transaction links and realizing point-to-point fast and low-cost payments.

⑥ How is blockchain technology used in payment?

The imApp2.0 version of the Blockchain Application Center has been officially launched
area Blockchain Application Center imApp2.0 version has been officially launchedWire. imApp is the world's first blockchain application store that provides dividends to all people. It aims to create a super entrance to the blockchain industry and make it easier for users to use blockchain applications. The interface of imApp version 2.0 is more concise and beautiful, the function has added news and DAPP, and the content has enriched the guessing game. Users can obtain the IMAPP Ecological Pass IA by browsing, forwarding, downloading, updating, and opening applications through IMAPP. imApp has officially reached a strategic cooperation with the Bitcoin Diamond Foundation. The ecological token IA can be exchanged for Bitcoin Diamond BCD at a certain ratio.

⑦ What is blockchain and what role does blockchain play

What is blockchain? What changes will it bring to your future life?

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 an important concept of Bitcoin. It is essentially a decentralized database. As the underlying technology of Bitcoin, it is a series of related cryptographic methods. Each data block contains a batch of Bitcoin network transaction information, which is used to verify the validity of the information (anti-counterfeiting) and generate the next block.

In the original English version of the Bitcoin white paper, the word blockchain does not actually appear, but chain of blocks is used. In the earliest Chinese translation of the Bitcoin white paper, chain of blocks was translated into blockchain. This is the earliest time when the Chinese word "blockchain" appeared.

The Cyberspace Administration of China issued the "Blockchain Information Service Management Regulations" on January 10, 2019, which will come into effect on February 15, 2019.

In a narrow sense, blockchain is a chain data structure that combines data blocks in a sequential manner in chronological order, and is cryptographically guaranteed to be non-tamperable and non-tamperable. Unforgeable distributed ledger.

Broadly speaking, blockchain technology uses block chain data structures to verify and store data, uses distributed node consensus algorithms to generate and update data, and uses cryptography to ensure data transmission and Access security, a new distributed infrastructure and computing method that uses smart contracts composed of automated script codes to program and operate data.

In fact, to understand it very simply and vividly, we can imagine that everything in life is realized in digital form, including food, clothing, housing, transportation, medical treatment, education, etc., based on the Internet, it can be easily done at home Get it done, no matter where you go to do business or trade, you can complete the operation with your mobile phone. With the continuous development, everything we can do can be easily completed online, including specific volume work, production, planting, etc., of course 5No one can accurately predict what the rise of g will bring, but it will definitely bring about earth-shaking changes in life and social form!

Blockchain was born from Satoshi Nakamoto’s Bitcoin. Since 2009, various Bitcoin-like digital currencies have appeared, all based on public blockchains.

The current situation of digital currencies is that a hundred flowers are blooming. Here are some common ones: bitcoin, litecoin, dogecoin, OKcoinetc. In addition to currency applications, there are also various derivative applications, such as NXT, SIA, and BitShares. , MaidSafe, Ripple, Ethereum and many more.

On January 20, 2016, the People’s Bank of China Digital Currency Seminar announced that it had achieved phased results in digital currency research. The meeting affirmed the value of digital currency in reducing the issuance of traditional currency and stated that the central bank is exploring the issuance of digital currency.

Some areas where blockchain can be used can be:

▪ Smart contracts

▪ Securities trading

▪ E-commerce

▪ Internet of Things

▪ Social communication

▪ File storage

▪ Proof of existence

▪ Identity verification

▪ Equity crowdfunding

The development of the blockchain can be compared to the development of the Internet itself. In the future, there will be an Internet called finance-internet, and this thing is based on blockchain, its precursor is bitcoin, that is, traditional finance starts from private chains and industry chains (local area network), and the bitcoin series starts from public chains (wide area network), both expressing the same The concept of digital assets (Digital Asset) eventually converges to an intermediate equilibrium point.

The core advantages of the blockchain architecture include:

Any node can create a transaction, and after a period of confirmation, it can reasonably confirm whether the transaction is Effectively, blockchain can effectively prevent problems from happening on both sides. The cost of trying to rewrite or modify transaction records is very high. Blockchain implements two types of records: transactions and blocks. Transactions are the actual data stored on the blockchain, while blocks areIt is a record confirming when and in what order certain transactions became part of the blockchain database. Transactions are created by participants using the system in the normal course (in the case of cryptocurrencies, a transaction is created by Bob sending tokens to Alice), while blocks are created by what we call Units of miners are responsible for creation.

So in conclusion, this is undoubtedly a new technology that changes life. In the future, the production activities of the entire society will be carried out with blockchain as the underlying logic, and many things will be within our reach. , coupled with the integration of artificial intelligence and big data, we can easily handle things that may seem cumbersome now, such as some securities market transactions and intelligent matching of financial management activities.

To put it simply, blockchain is a network computing center that integrates people, property, machines, and goods, and packages it into a whole; putting it on an infrastructure and running it in a network computing center .

Now the author’s imagination is not big enough to imagine what the future world will be like. I am looking forward to it!

I know a thing or two about this issue. Let’s get to know this mysterious thing - blockchain.

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 an important concept of Bitcoin. It is essentially a decentralized database. As the underlying technology of Bitcoin, it is a series of data blocks generated using cryptographic methods. Each The data block contains information about a batch of Bitcoin network transactions, which is used to verify the validity of the information (anti-counterfeiting) and generate the next block

The more popular it is, the more fake it is to keep the real. First of all, we must first figure out what the real blockchain technology is.

As an example, take buying fruits online.

The process of purchasing fruits online is as follows:

Using blockchain technology and decentralization, the process of purchasing fruits is as follows:

Summary:

1. We found that the original transaction process is: buyers make transactions with sellers, and all key processes are dealing with the payment platform. The advantage of this is that if there is a problem in any link, both sellers and buyers can seek help through the platform and let the platform arbitrate. However, a major bug or hacker attack occurs on the platform, resulting in the loss of all transfer records within a period of time. How to deal with the loss is a troublesome matter.

2. The transaction process using blockchain technology is: everyone’s ledger has exactly the same transaction record. Even if Alipay’s ledger server is broken, the seller’s ledgerIt still exists, the buyer's ledger still exists. Once this transaction occurs, the traces will never be erased.

This is the core of the blockchain, which is the four words "accounting + accounting".

The development and maturity of blockchain technology are inseparable from the foundation and foreshadowing of the above new generation of Internet technology. Blockchain is not only a technology, but also provides a service model and solution. , which has played an extremely important role in promoting the further development of the Internet industry.

1. Blockchain + Finance

2. Blockchain + Supply Chain Management

3. Blockchain + Intelligent Manufacturing

4. Blockchain + Public Services

5. Blockchain + Education and Employment

6. Blockchain + Culture and Entertainment

7. Blockchain + payment

8. Blockchain + invoice {Already enabled in Shenzhen}

Traceability and non-tamperability of blockchain , perfectly combined with the inherent nature and needs of the financial industry, which makes the application of blockchain in the field of financial services the most in-depth and relatively mature field so far. Blockchain technology has broad application prospects. The future technological competition will also be a blockchain competition.

It is important to understand blockchain, which is important to see through various pseudo-blockchain scams.

If someone uses a bunch of professional terms to explain blockchain, it will be difficult for you to understand, and they may not really understand it themselves.

Therefore, we first establish a psychological line of defense. Anyone who sells you concepts and uses a lot of unfamiliar technical terms may be a liar. Be very careful!

To understand blockchain, you must know what the core appeal of blockchain is. What do you think you are most worried about in today's highly developed Internet world?

Privacy, yes, privacy. How to protect privacy? You may be monitored at any time, and any of your personal information may be stolen at any time. If personal privacy is not absolutely protected, the Internet will become another pyramid of power. Who is standing on top of the pyramid? He is the smartest technical master, a platform provider, and an information regulator. You and I may be the people at the bottom of this pyramid.

The people who originally invented the blockchain had serious concerns about being completely swallowed up by the Internet, and tried to create an absolutely safe encryption technology to lock up personal privacy. This technology completely subverts traditional encryption technology. In fact, rather than locking up privacy, it is better to tear it into pieces and then distribute the pieces to different people for private keeping. Unless everyone agrees to take out the pieces and piece together the complete secretcode, otherwise the truth cannot be reproduced. This is the first mechanism of blockchain, which is decentralization.

But decentralization alone is not enough. It is also necessary to make those who steal password fragments have nowhere to hide, so that every action of the thief can be recorded indelibly and posted everywhere on the Internet. Diffuse and make it public. This is the second mechanism of the blockchain, the non-anonymous mechanism. Do you think, who snoops into privacy is not sneaky?

In summary, the blockchain is to hide privacy in a decentralized manner, record any actions that reproduce this privacy, and make it public. Seeing this, you may want to applaud the blockchain. Don't worry, how can there be such a good thing in the world? Is there any utopia that is absolutely safe? If blockchain can be realized in an absolute sense, will the existence of the government still make sense? Yes, blockchain was originally the embodiment of anarchy. Its ultimate meaning is destined to never be realized. Its survival may have to rely on power, and it is destined to become another beautifully packaged lie and a pretense to deceive people. In this sense, the government must also specify a framework for the development of the blockchain, reconstruct the value of the blockchain, and drive out the anti-government and anti-national attempts contained in the blockchain. Some blockchain technologies can be used in concrete applications, but decentralization must not be promoted. In short, we must remain highly vigilant about blockchain. Beauty often hides its sting. Absolutely ideal recipes often turn out to be poison. The person who says he can absolutely protect your privacy and financial security is the real voyeur and vampire.

Perhaps the best way for us to protect privacy is not to have any privacy, to live a completely open life, either to live like a sun or to live like a god of wine.

Viewpoint: 1. The concept of blockchain originated from the technical attributes of Bitcoin (distributed data storage and accounting, decentralization, inability to tamper with transaction records, point-to-point information transmission, sharing mechanism...), but Later, some people continued to extend and expand the concept to many commercial fields to facilitate capital speculation. 2. Blockchain in reality (the current blockchain on the market is very confusing), the hype concept is mostly used to make money in the stock market, and there is still a lack of regulatory loopholes. , legal and regulatory issues, etc., and even money laundering (the actual operation of blockchain products is one thing, the capital operation behind it is another). At present, the computer systems around the world cannot meet the characteristics of blockchain attributes. Technical requirements (such as distributed data storage and accounting, decentralization...), network bandwidth, storage technology and computer computing systems cannot meet transaction operation requirements (it is easy to use computer technology to make your network clogged or unable to complete distribution) There are risks arising from practical applications such as formal data storage or transactions being interrupted or delayed at any time. In addition, as far as the current global computer system is concerned, it is easy to crack the underlying program of the blockchain (this is a fatal flaw in the current global computers, 0 and 1 binary logic , in addition, it is very easy to crack the blockchain if the inverse blockchain mode operation algorithm is used. This inverse operation mode is alsoIt is completely possible to tamper with all transaction records. If a real quantum computer comes to the market in the future, it can directly break all blockchain computer systems in seconds. Bitcoin mining is a Ponzi scheme. 3. Most of the current blockchains on the global market are basically It is a concept of capital speculation to make money.

Blockchain has been mentioned for several years. Early last year, I heard a blockchain boss say that 2018 is the best year for the development of blockchain. , after this year, foreign development fell behind. What is blockchain? To put it bluntly, it's like a pig's intestines, each section connected together. Blockchain is to connect these blocks together, fix them, and use computer and Internet encryption technology to prevent secrets from being leaked to the outside world. This technology cannot be explained to non-professionals through professional terminology, and generally they will not understand it. It can only be explained with an analogy. Let me give you two examples:

1. Four people, A, B, C and D, play mahjong and gamble in a mahjong parlor. They use chips for each game and settle the bill at once when they break up. A loses 1,500 yuan and B loses 300 yuan. Yuan, C won 200, and D won 1,600. As a result, A only has 1,000 yuan, and everyone else has sorted it out, but A still owes D 400 yuan. Only these four people know about this matter, and these four people are one block. There is no proof for what he says, and he doesn’t know how to write an IOU for this kind of thing. What will happen if A doesn’t pay back the money in the future? Except for the four people A, B, C and D present, no one else knows about this. If A wants to default on the debt and says that he does not owe money at all, only three people, B, B, D and D, know that A is defaulting on the debt. It is difficult for others to judge whether A owes money and refuses to pay it back. Therefore, the value of blockchain needs to expand participation. What if these four people were playing mahjong and a dozen friends were watching? Isn’t the cost of defaulting on the loan high? This is real life block. What about extending to the Internet? Then there are endless possibilities and there are many scenarios.

2. If four people, A, B, C and D, do business in a business group of 500 people, this group of 500 people is a big block. Once, A asked B for 10,000 yuan of goods, but did not pay B in time. A said at that time that he would pay B within 3 days. Everyone in the group knows this. If A fails to send money to B within 3 days, then the other 498 business partners in the group will know about it. If A defaults on the debt, his reputation in this business circle will be ruined. affected. This is a block.

Later, A wanted to do business with C. C asked A for goods. A said that you should pay a deposit of 5,000 yuan and the goods will be shipped immediately. C paid 5,000 yuan to A, but A was delayed. Not shipping, everyone in this group knows, this is another block. When the two blocks are connected, everyone doubts A's credibility. How many times have you done this? Will Mr. A continue to play in the future? This is the value of blockchain.

Blockchain may seem complicated, but it is not complicated at all; it may seem simple, but it is actually very difficult to operate. The blocks are too small and meaningless. If the block wants to grow bigger, privacy and business secrets will be involved. For example, it is inconvenient to have a relationship in a big city.The group said: For example, if we cooperate to do a big business, it is inconvenient to discuss it publicly in the group (block) beforehand. However, there are still occasions when blockchain technology is used, such as poverty alleviation work, disaster relief fund management, etc. It is exposed to the sun and everyone knows it and supervises each other. I’ve given these two examples. Do you understand them at all?

[The most core and easy-to-understand introduction to blockchain]

1. How does blockchain create trust? We use "1", "2", and "3" to summarize the characteristics of the blockchain:

- "1" summarizes the blockchain: a trusted distributed database;

- "2" core properties: distributed, non-tamperable;

- "3" key mechanisms: cryptography principles, data storage structure, consensus mechanism.

The "distributed" and "non-tamperable" properties ensure the "honesty" and "transparency" of the blockchain, which is the basis for the blockchain to create trust.

2. In terms of industry, it is expected that the financial industry will be dominated by the financial industry in the next 3-5 years, gradually radiating to other real industries, more realistic scenarios will be accelerated, and the industry will develop from "1 to N" to Including entertainment, product traceability, credit reporting, etc.

In the future, in addition to using technologies such as side chains, lightning networks, and cross-chains, blockchain will also need to be deeply integrated with emerging information technologies such as 5G, artificial intelligence, big data, and the Internet of Things to enhance the Technical performance and off-chain data quality and reduce resource waste.

3. Smart contracts may be the most revolutionary application on the blockchain. If smart contracts are widely used on the blockchain, the economic division of labor will be further refined in the Internet era. Network nodes around the world will directly connect demand and production, and broader social collaboration will be realized.

If the above vision is realized, the combination of blockchain technology and industry is expected to usher in an explosive moment "from 1 to N". Its explosion may not be linear but non-linear. Blockchain Only then can the chain be upgraded from a "trust machine" to an important "engine" leading the industry wave.

Decentralization. Prevent cheating. It used to be that one person kept accounts and could make changes. Now there are 50 people. Each person records an entry and everyone has a record in the account book. Can you make changes to all 50? All 50 ledgers are valid unless they are all changed. So it's very useful.

I saw many people answering that ordinary people cannot understand intuitively. Let me explain simply and clearly, blockchain is decentralized. When something happens, everyone writes it down and has their own password, which cannot be tampered with.

Even if a hacker wants to change it, he has to do it one by one, which will tire him out. In fact, it is impossible, at least for now.

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

Blockchain originated from Bitcoin and is an important concept of Bitcoin. It is essentially a decentralized database. As the underlying technology of Bitcoin, it is a series of cryptographic methods. The associated data blocks are generated. Each data block contains a batch of Bitcoin network transaction information, which is used to verify the validity of its information and generate the next block.

Blockchain has potentially 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.

After reading so many expert advices, I am still confused. I only remember that someone used this so-called "blockchain" to do pyramid schemes in the past...

⑧ What does blockchain mean and what are its applications in cross-border payments

Why is it said that the Internet era is coming to an end and the blockchain era is coming?

Once the blockchain develops, more innovations will burst out. Since the birth of Bitcoin, the first product of the blockchain, many innovations have been born. For example, small-amount cross-border payments, recording transfers between currencies, recording various stocks, registering house property rights, recording program codes, etc.

The steam age liberated social productivity, the electrical age revitalized social collaboration capabilities, and the Internet The era has connected the world together, and the blockchain era will allow us to truly achieve freedom.