区块链货币应用题及答案,区块链基础与应用题目

请查看相关英文文档

⑴ Explanation of terms blockchain

Blockchain is explained as follows:

Blockchain is actually equivalent to a disintermediated database. Composed of a series of data blocks. Each of its data blocks contains information about a Bitcoin network transaction, which is used to verify the validity of the information and generate the next block.

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 inextricable. Tamper-proof and unforgeable distributed ledger.

Type

Public Blockchain

Public Block Chains: Any individual or group in the world Transactions can be sent and effectively confirmed by the blockchain, and anyone can participate in its consensus process.

Public blockchain is the earliest blockchain and the most widely used blockchain. The virtual digital currencies of all major bitcoins series are based on public blockchains. There is only one such blockchain in the world. The blockchain corresponding to the currency.

Industry Block Chains

Industry Block Chains (Consortium Block Chains): Multiple pre-selected nodes are designated within a certain group as bookkeepers, and each block is generated by All pre-selected nodes make a joint decision (pre-selected nodes participate in the consensus process);

Other access nodes can participate in transactions, but do not participate in the accounting process (it is essentially still managed accounting, but becomes distributed accounting) , the number of pre-selected nodes, how to decide the bookkeeper of each block has become the main risk point of the blockchain), anyone else can make limited queries through the open API of the blockchain.

Private Block Chains

Private Block Chains: Only use the general ledger technology of the blockchain for accounting. It can be a company or an individual. With exclusive write access to the blockchain, this chain is not much different from other distributed storage solutions.

Traditional finance is trying to experiment with private blockchains, while public chain applications such as Bitcoin have been industrialized, and private chain application products are still being explored.

⑵ Blockchain and Digital Currency

The public’s current enthusiasm for blockchain and digital currency is a process of wanting to die and going crazy first.

For individuals In terms of profit or loss, the money earned must be money lost by others. This is not a market where entities create value. The secondary market is zero, plus handling fees, it is a negative market.

The blockchain is Like Pandora's box, it is inappropriate to open it. If everything is grafted reluctantly, it will definitely bring about a lot of problems. To solve it, maybe there will be new entrepreneurs who should work hard to speculate, and finally get the chicken feathers of the entire industry. This I think the biggest problem in the current blockchain industry is that the bubble is too big.

Although many investors choose to speculate in this blockchain bubble, value investing does apply. Human nature will never change, fear of greed, risk, human nature and the law of economic development are applicable to any industry. It will not change because of the emergence of new things.

I think investment is related to speculation, with both similarities and conflicts. Speculation can be said to be a subdivision of investment, so the success of some speculators cannot reduce the value of investment. The value of existence.

Speculation and value investing belong to different fields. Because different strategies are used in different markets, in a certain stage with many bubbles, smart investors choose to speculate, and the bubble gradually breaks through. When choosing a project, you will return to value investment and look at the long-term value.

For myself, if it does not conform to my values ​​​​and value investment philosophy, I will not participate. If you miss it, you will miss it. Life is often not necessarily the same. It needs to be done multiple times, but in fact, making multiple mistakes at critical moments is also an effective method. This is my choice. If you are not interested in the commotion of this high-level jump, you can choose not to participate. There are many opportunities in other routes, and it is not necessary to focus on it. Follow this route.

⑶ Where can I find a more detailed explanation of blockchain applications?

Blockchain applications include mathematical currency, payment and settlement, digital bills, proof of rights and interests, and bank credit reporting.
Each application is explained in detail as follows:
1. Digital currency
At present, the most extensive and successful application of blockchain technology is the digital currency represented by Bitcoin. Digital currency has developed rapidly in recent years. Due to the characteristics of decentralized credit and frequent transactions, it has a high transaction value and can maintain a relatively stable price through the development of hedging financial derivatives as a quasi-super-sovereign currency. Digital currency has established digital currency transaction credit backed by sovereign currency. The greater the transaction volume and the more frequent transactions, the stronger the digital currency transaction credit foundation. Once the blockchain credit system is implemented globally, digital currency will become a gold-like global payment credit.
2. Payment and settlement
At this stage, settlement and payment of commercial trade transactions all rely on banks. This traditional method of conducting transactions through intermediaries requires the account opening bank, counterparty bank, central bank, and overseas bank. In this process, each institution has its own accounting system, needs to establish an agency relationship with each other, and needs a credit line; each transaction needs to be recorded in its own bank, and must also be cleared and reconciled with the counterparty, resulting in Transactions are slow and costly. Compared with the traditional payment system, blockchain payment is carried out directly by both parties to the transaction without involving intermediaries. Even if part of the network is paralyzed, it will not affect the operation of the entire system. If a universal distributed inter-bank financial transaction protocol is built based on blockchain technology to provide users with cross-border, real-time payment and clearing services in any currency, cross-border payments will become convenient and low-cost.
Take cross-border exchange as an example. If I open an account in a small bank in my country and send money to another small bank overseas, the transfer process under the traditional SWIFT system requires the following:Next steps: first, I submit an application to the small bank I belong to; second, the small bank submits an application to a large bank in the same country that has signed exchange terms; third, the large bank wires the overseas cooperative bank; fourth, the cooperative bank transfers to the overseas cooperative bank. Small bank transfers. Currently, the process takes anywhere from 10 minutes to two days, depending on the country. If you use blockchain-based settlement technology and place an order at a market maker while remitting RMB, a trading bank participating in the system in the world will receive the order, and the two parties will shake hands to complete the exchange. The average payment confirmation speed will be in a few seconds. Within seconds.
3. Digital bills
Digital bills are a brand-new bill presentation form developed by combining blockchain technology with bill attributes, regulations, and markets. It is completely consistent with the technical architecture of the existing electronic bill system. different. The core advantages of digital bills are mainly reflected in: First, the disintermediation of the value transfer of bills. In traditional bill transactions, bill intermediaries often use information differences to match. After point-to-point transactions are realized with the help of blockchain, bill intermediaries will lose their intermediary functions and reposition their identities. The second is to effectively prevent bill market risks. Due to the blockchain's non-tamperable timestamps and the fact that it is open to the entire network, once a transaction is made, there will be no default, thus avoiding the problems of "one vote selling more" for paper tickets and out-of-sync payment and endorsement of electronic tickets. Third, the system construction and data storage do not require a central server, eliminating the development costs of central applications and access systems, reducing the maintenance and optimization costs of the system under the traditional model, and reducing the risks caused by system centralization. The fourth is to standardize market order and reduce regulatory costs. The non-tamperable timestamp formed by the continuous connection of blockchain data greatly reduces the cost of regulatory review. The completely transparent data management system provides a trustworthy traceability path, and shared constraints can be established in the chain for regulatory rules through programming. code to achieve full coverage and hard control of regulatory policies.
4. Proof of Rights and Interests
Every node participating in the maintenance of the blockchain can obtain a complete data record. Using the characteristics of the blockchain's reliability and collective maintenance, the rights of the owners of rights and interests can be confirmed. For the need to store permanent records, blockchain is an ideal solution for scenarios such as land ownership and equity transactions. Among them, proof of equity is the field with the most applications currently. Equity owners can prove their ownership of the equity with their private keys. When the equity is transferred, it is transferred to the next owner through the blockchain system. The property rights are clear and the records are clear. The entire process does not require the involvement of a third party.
During a keynote address at the 2015 European Financial Journalism Awards for Excellence in Trading Technology in London, Nasdaq CEO Bob Greifeld announced that the exchange intends to use blockchain technology to manage its proxy voting system. Proxy voting is an important and time-consuming operation used by a listed exchange. The application of blockchain technology can allow shareholders to vote without having to attend the company's annual meeting. People can vote using their mobile phones, and Always keep voting records. Blockchain technology is regarded as a technology that can be used in the field of equity tradingAdvanced technology that ensures transparent transactions in less time.
5. Bank Credit Reference
At present, when developing commercial bank credit business, whether it is for enterprises or individuals, the most basic consideration is the financial credit of the borrower itself. Each bank uploads the repayment status of each borrower to the central bank's credit reference center. When inquiries are needed, the bank will download the reference from the central bank's credit reference center with the customer's authorization. There are problems such as incomplete information, inaccurate data, low usage efficiency, and high usage costs. In this field, the advantage of blockchain is that it relies on program algorithms to automatically record massive information and store it on every computer in the blockchain network. The information is transparent, difficult to tamper with, and has low cost of use. Commercial banks store and share customers' credit status in their own institutions in an encrypted form. When applying for a loan, customers do not have to go to the central bank to apply for a credit check, that is, decentralization. The lending institution can retrieve the corresponding information data from the blockchain. Complete all credit reporting work.
In short, blockchain has become one of the hot spots of innovation in the financial industry. However, as a new technology, blockchain also has considerable risks. The current settlement system based on blockchain technology is very sensitive to regulatory risks. If participants are worried about the uncertainty of regulatory policies, it may cause the payment system to collapse due to instability. In addition, since its operating rights are controlled by developers, the obvious technical disadvantage is that if the operator itself controls more than 51% of the computing power of the entire network, it can achieve double payment, leading to a breakdown of trust. This is also an important issue that needs to be solved during the application of blockchain technology.

⑷ In addition to being used in virtual currency, what other aspects can blockchain technology be used in?

In addition to being used in virtual currency, blockchain can also be used in the financial field, digital currency, Securities trading, fund management, customer credit reporting and anti-fraud, digital points, etc. The usage rate of blockchain in our country is still relatively high at present. Perhaps what we have heard the most before is that it is used in virtual currency.

In summary, in today’s society, blockchain technology has provided us with a wide range of help, and we must make good use of this Technology, use it in various related industries to make our industry develop faster and ensure the interests of our people.

⑸ What are the practical applications in the blockchain 1.0 era?

The development of blockchain 1.0 is closely related to digital currency, and its applications are generally concentrated in currency transfer, exchange and payment. In a sense, blockchain technology during this period found a solution to the decentralization of currency and payments.

Currency and payment constitute the most significant applications in the blockchain 1.0 era. A series of virtual currencies represented by Bitcoin have emerged, such as Litecoin, Dogecoin, Ripple, Futurecoin, and Peercoin. Etc., thousands of digital currencies have been produced around the world, and there are about 700 types still in operation. These “alternative currencies” act as “cash” on the Internet and open up the financial sectorIn the application scenario of virtual currency, individuals can allocate and trade various resources among individuals in a decentralized, distributed and global way.

The blockchain during this period has set off a huge wave in the financial field. In areas related to transfers, remittances and digital payments, blockchain technology has attracted much attention. In these fields, the traditional method requires tedious processing processes such as the account opening bank, counterparty bank, clearing organization, overseas bank (agent bank or overseas branch) through central institutions such as banks, which takes a long time and is costly. After applying blockchain technology, payment can realize end-to-end transactions, eliminating the cumbersome intermediary processing links. It is not only fast, but also has very low transaction costs. Especially in terms of cross-border payments, the blockchain-based payment system can provide users with global cross-border, real-time payment and clearing services in any currency. Cross-border payments will be completed instantly at a low cost.

The Xueshuo Innovation Blockchain Technology Workstation under Lianqiao Education Online is the only "Smart Learning Factory 2020- Xueshuo Innovation Workstation" launched by the School Planning and Construction Development Center of the Ministry of Education of China. Approved "Blockchain Technology Professional" pilot workstation. The professional base 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.

⑹ What are the practical applications of blockchain technology in the field of economics

Because the digital currency first produced by blockchain technology has had a huge impact on the financial field, research and application areas Blockchain technology has become an important task in today’s financial field. In essence, blockchain technology is still a technical means and tool. Its application in the financial field and its application in the real economy are both parallel. They have their own relative independence, but there is a certain overlap, that is, It is said that the promotion effect on the real economy is indirect. 1. Regardless of finance or entity, one of the foundations of transactions between supply and demand is trust. The current banks, enterprises, enterprises, people, etc. all use currency as a link. The right to issue currency lies with the state, and the right to operate lies with banks. With the further popularization and widespread application of blockchain technology, in the future, enterprises and enterprises, or individuals and individuals can self-organize the issuance of digital currencies (digital credit). Banks’ The status will change from the current monopoly operation to an equal competition operation in the market. Therefore, the widespread application of blockchain technology in the financial field has an indirect impact on the real economy. 2. Blockchain technology is the bridge between reality (entity) and virtuality. Through blockchain technology, the real world can be recreated, reconstructed and redefined in the virtual world. For example, real banknotes are digital currencies in the virtual world, real stock transactions are digital stock transactions in the virtual world, and real import and export trade are digital settlements, digital customs clearance, digital documents, bills, etc. in the virtual world. It greatly improves the efficiency of business processes and saves transaction costs. At present, all transactions are inseparable from banks. Banks play a central role in transactions. The application of blockchain technology by banks will definitely improve the efficiency of their settlement.efficiency, indirectly promoting the efficiency of the real economy, but this impact will gradually weaken in the future. Because the biggest feature of blockchain technology is decentralization, its distributed accounting system is a centerless network system. 3. The application of blockchain technology is actually to valorize and credit the information currently flowing on the Internet, and to reorganize and restructure the information in the Internet (use value, exchange value, cultural value) through the blockchain. The formation of the Internet of Value is of great significance and will bring revolutionary promotion to both the financial industry and the real economy.

⑺ What are the applications of blockchain in real life

(1) Qulian

The underlying platform of Qulian blockchain is developed by Qulian Technology The domestic independent controllable blockchain underlying platform features high performance, high availability, scalability, easy operation and maintenance, strong privacy protection, hybrid storage and other features, and cooperates with the data sharing and secure computing platform BitXMesh and the blockchain open service platform FiLoop, supply chain finance platform FiloLink, certification service platform FiloInk, and smart contract security research and development platform MeshSec can better support industry applications such as enterprises, governments, and industry alliances, and promote value among multiple institutions. Efficient circulation.

(2) JD Chain

JDChain is an enterprise-level blockchain underlying framework independently developed by JD.com. Its birth marks the full launch of JD.com’s blockchain-based BaaS The construction of the "intelligent ecology" of the platform and the underlying chain of "JDChain". JD Zhizhen Chain Service Platform relies on the "one-click deployment" capability achieved through multiple optimizations to achieve leading second-level blockchain node deployment. In addition, it also has the core advantage of being open and compatible with mature applications such as multiple underlying and enterprise-level dynamic networking. The timely launch of JD Zhizhen Chain will effectively promote the large-scale implementation of enterprise-level blockchain applications in various industries and promote the construction of China and the global trust economy.

(3) Thunder Chain

ThunderChain is a blockchain application project independently developed by Xunlei’s Netcenter Technology. It has high concurrency of one million tps and second-level confirmation capabilities. . Based on the research and development of high-performance blockchain products, Xunlei has built the Xunlei Chain open platform to help enterprises or individual developers deploy smart contracts and easily implement products and services on the chain, making blockchain application development more convenient.

(4) Jingtong Chain

Jingtong Blockchain is the core underlying technology of the blockchain with independent intellectual property rights of Jingtong Technology. It is built based on blockchain technology. An effective decentralized Internet trading network that shares the ecology, adopts a hierarchical design (5 layers) of the underlying platform, and a multi-language smart contract system, and has implemented cross-chain functions. It has multi-level, all-round, one-stop service capabilities such as private chain, cloud chain, and alliance chain, and the layout of the industry and regional ecology has initially taken shape.

In addition to the above-mentioned blockchain products, there are also community-led LTC, Cosmos, IOTA, Nervos, NULS, MOAC, etc., enterprise-led Ripple, Stellar, Weizhong BCOS, Network XuperChain, Huawei, Ping An, Wanxiang, Ant Financial, Zhongan, Bubi, Matrix Yuan, Miyuan, Zhongxianbit, Complex Beauty , Shanghai Lianjing and many other blockchain products.

(7) Extended reading of blockchain currency application questions:

Blockchain is far more than just a technology, and it involves The spirit of "multi-party collaboration". In modern society, many things must rely on everyone's cooperation to achieve the effect of 1+1>2, but in cooperation, we need to try our best to avoid problems such as "information asymmetry."

Therefore, alliance members jointly keep accounts, share data, and make everything public to eliminate "information asymmetry" to protect everyone's interests and allow the business environment to develop healthily. If you do things honestly, you will get the benefits you deserve. If you cheat, it will be known to everyone and criticized by thousands of people. Technology is the foundation that helps realize this model. This is the more important "blockchain thinking".

⑻ What are the non-monetary application scenarios of blockchain not included?

The non-monetary application scenarios of blockchain do not include financial investments and transactions, virtual currency mining and Currency-related behavior.
1. Financial investment and trading. Financial investment and trading involve a large amount of capital flow and risk management, and require more stringent supervision and legal support. Due to the decentralization and anonymity of blockchain technology, it cannot provide sufficient regulatory and legal protection, so its application prospects in the fields of financial investment and trading are relatively limited.
2. Virtual currency mining. Virtual currency mining is an act of obtaining virtual currency through computer calculations. Since this behavior involves the generation and circulation of currency, it also requires more supervision and legal support. In addition, the value of virtual currency is extremely unstable, which also brings great risks and uncertainties to virtual currency mining.
3. Currency-related behaviors, in the fields of financial investment and transactions, as well as in the process of virtual currency mining, involve issues of user identity authentication and data privacy protection. However, blockchain technology has not yet solved these problems, so its application in these fields is subject to certain limitations.

⑼ In what areas can blockchain be applied?

I have seen your question. So, in what areas can blockchain be applied? The editor will answer it for you below.

Answer: Bitcoin is the first specific application of blockchain. It was proposed in a paper in 2008 by a person or group of people. Bitcoin uses the blockchain to digitally send bitcoins, as BitCoin is known, without the intervention of a third-party middleman.

But Bitcoin is not the only application of blockchain, as follows:

1. Financial field: Applying blockchain technology to the financial industry can eliminate the need for third-party intermediaries links to achieve point-to-point directdocking, thereby greatly reducing costs while quickly completing transaction payments.

2. Internet of Things and logistics fields: Blockchain can also be naturally combined in the fields of Internet of Things and logistics. Through blockchain, logistics costs can be reduced, the production and delivery process of items can be traced, and the efficiency of supply chain management can be improved.

3. Public service field: Blockchain is closely related to people’s production and life in public management, energy, transportation and other fields. However, the centralized nature of these fields also brings some problems. It can be used to distinguish Blockchain to transform.

4. Digital copyright field: Through blockchain technology, works can be authenticated, prove the existence of text, video, audio and other works, and ensure the authenticity and uniqueness of ownership

< p>5. Insurance field: In terms of insurance claims, insurance institutions are responsible for fund collection, investment, and claims settlement, and often have high management and operating costs. Through the application of smart contracts, there is no need for the policy holder to apply or the insurance company to approve it. As long as the claim settlement conditions are triggered, the insurance policy can automatically settle claims.

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

The above is for your reference only, I hope you can adopt it, thank you!