区块链技术应用研究Amanda Elys,区块链技术应用课程
。区块链技术：区块链技术是一种分布式数据库技术，具有去中心化、不可篡改、安全可靠等特点。它是一种由多个节点组成的计算机网络，可以记录并存储数据，以实现数据共享和交易的安全性。这种技术可以用来存储和记录交易数据，支持多种虚拟货币，以及可以实现去中心化的应用。
智能合约：智能合约是一种由计算机程序驱动的自动执行的合同，它可以在区块链网络上运行，并且能够被所有网络上的参与者访问和使用。它可以用来实现各种功能，比如存储数据、记录交易、执行自动支付等。它的优势在于可以自动执行合约，无需人工干预，从而提高了交易效率。
去中心化应用：去中心化应用（DApp）是一种基于区块链技术开发的去中心化应用程序，它可以在去中心化的网络中运行，从而实现数据共享、数据安全、数据可追溯等功能。它可以用来开发各种去中心化应用，比如去中心化的货币交易平台、去中心化的游戏、去中心化的投票系统等。去中心化应用可以有效地提高数据安全性，减少数据泄露的风险，并保证数据的可追溯性。
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① What are the applications of blockchain technology
Developing Ethereum Cat based on Ethereum, this is not considered an application, it is a bit interesting, and there is also NetEase Planet. For traceability, I have snapped up the Orange Chain made by China Enterprise Tongbao Blockchain, which is used for blockchain traceability records on Orange.
② What is blockchain ppt
From an academic perspective, blockchain is a new application of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms. model. Blockchain is essentially a decentralized database.
For example, if you are a woman, every time your boyfriend says something disgusting to you or promises to buy you something, you immediately record it and send it to all your best friends, classmates, Colleagues, as well as various groups and circles of friends, make it impossible for him to deny it anymore. This is called blockchain.
The core advantage of blockchain technology is decentralization. It can realize decentralized credit in a distributed system where nodes do not need to trust each other by using data encryption, timestamps, distributed consensus and economic incentives. Point-to-point transactions, coordination and collaboration, thereby providing solutions to the problems of high cost, low efficiency and insecure data storage common in centralized institutions.
The application fields of blockchain include digital currency, certificates, finance, anti-counterfeiting and traceability, privacy protection, supply chain, entertainment, etc. With the popularity of blockchain and Bitcoin, many related top domain names have been registered. , which has had a relatively large impact on the domain name industry.
③ What are the application examples of blockchain technology
The express logistics industry is an industry that is very suitable for the application of blockchain technology.
In fact, the logistics ecosystem is relatively complex and there are many groups involved in the process.
The industry itself is a complex of segments with the concept of "flow". Starting from the initial "business flow", it gradually gave birth to "logistics", as well as the corresponding support of "capital flow" and "information flow" , complete the service chain.
There is a key issue behind the emergence of various "flows", which is the transfer of commodity ownership.
Coincidentally, many of the types of problems solved by blockchain technology are related to the trust friction generated during the transfer of asset ownership.
The application of blockchain technology can significantly improve the processing speed and efficiency of settlement business in the express logistics industry, effectively solve the problem of traceability and anti-counterfeiting of items, and fully ensure information security and the privacy of senders and recipients.
In the field of promoting application in the express logistics industry, there are domestic blockchain companies doing applications in this area, such as Walton Chain.
Last year, Waltonchain reached a strategic cooperation with Huodou (Xiamen) Technology Co., Ltd., using Waltonchain’s “RFID blockchain” technology solution to help it improve its logistics solutions and move goods to Dou puts data on the chain in all aspects of its logistics turnover, such as entering and exiting warehouses, receiving goods and other key nodes. After deploying a reading and writing system, when objects pass through any link, they can be read and written by RFID readers.Read relevant data, convert corresponding behaviors into data, and upload it to the blockchain. Users can trace the entire logistics process with one click.
Four business scenarios that can be implemented in the real environment are suitable for the application of blockchain technology.
Scenario 1: Insured express delivery
Revolving around the insured scenario, express companies transport goods, insurance companies provide guaranteed goods, merchants provide goods sales, sellers purchase insured services, and the government regulates the industry.
So, what should be recorded on the blockchain? There are several key points. The logistics details of the goods, accounts, identities, claims, other reference data and other information are recorded on the blockchain.
Insured price is the concept of a contract. When the customer signs for the package normally, the account claim is automatically triggered, the contract ends normally, and the premium is automatically cleared. If there is a problem or missing piece, the insurance company's claim process will be triggered.
Scenario 2: Charity express delivery
For charity activities, such as the "One Cent" campaign, one cent from the cost of each charity package is donated to the account of the charity organization . In this scenario, the express delivery company is still responsible for the transportation of goods, the public welfare organization provides the execution of public welfare activities, and the poverty alleviation merchants provide the sales of public welfare and poverty alleviation products.
Then what is recorded in the blockchain is the logistics details of the goods. After the package is signed for, it will be recorded on the blockchain, automatically triggering the transfer from the logistics company's public welfare account to the public welfare organization's account. When the public welfare activities are completed, the entire process is open and transparent, which avoids the public's distrust of social welfare activities.
Scenario 3: Industry blacklist sharing
At present, the blacklist of express delivery employees is still mainly offline. We hope that through blockchain technology, each company can record the blacklist of employees on the blockchain, and other companies can also query it, and the data cannot be modified, and can be traced back to which company this person worked in What kind of inappropriate behavior and other information.
Scenario 4: Supervision of safety incidents in postal delivery channels
Many express companies will install security inspection machines, and the government also wants to know whether each logistics company has any transportation safety hazards. Through the distributed accounting model, each express delivery company can record the effective information of the security incident on the blockchain when a security incident occurs, so that regulatory agencies can monitor it in real time and cannot be tampered with.
④ What are the technological innovations and applications of blockchain?
1. Blockchain system
As the underlying technology of Bitcoin, the blockchain system It is generally composed of data layer, network layer, consensus layer, incentive layer, contract layer and application layer.
1. Data layer
The data layer encapsulates basic data and basic algorithms such as underlying data blocks and related data encryption and timestamps. It mainly describes the physics of the blockchain. The form is the chain structure on the blockchain starting from the genesis block. It contains the block data of the blockchain,The chain structure, as well as the random numbers, timestamps, public and private key data on the block, etc., are the underlying data structure in the entire blockchain technology.
2. Network layer
The network layer mainly implements distributed network mechanisms through P2P technology, including P2P networking mechanisms, data dissemination mechanisms and data verification mechanisms. Therefore, in essence, the blockchain is a P2P network with an automatic networking mechanism, and nodes maintain communication by maintaining a common blockchain structure.
3. Consensus layer
The consensus layer includes consensus algorithms and consensus mechanisms. The consensus layer allows highly dispersed nodes to efficiently reach consensus on the validity of block data in a decentralized blockchain network. It is one of the core technologies of the blockchain and is also the governance mechanism of the blockchain community. There are currently dozens of consensus mechanism algorithms, including proof of work, proof of equity, proof of equity authorization, proof of burning, proof of importance, etc.
4. Incentive layer
The incentive layer mainly includes the issuance system and distribution system of economic incentives. Its function is to provide certain incentives to encourage nodes to participate in the security of the blockchain. Verification work, and incorporating economic factors into the blockchain technology system, incentivizing nodes that abide by the rules to participate in accounting, and punishing nodes that do not abide by the rules.
5. Contract layer
The contract layer mainly includes scripts, codes, algorithm mechanisms and smart contracts, and is the basis for blockchain programmability. It embeds code into the blockchain or token, and can implement customized smart contracts. When certain constraints are reached, it can be automatically executed without going through a third party, which is the basis for trustless blockchains.
6. Application layer
The application layer encapsulates various application scenarios and cases, similar to applications on computer operating systems, portals on Internet browsers, search Engine, e-mall or APP on mobile phone. It deploys blockchain technology applications on Ethereum, EOS, QTUM, etc., and implements them in real life scenarios. In the future, programmable finance and programmable society will be built on the application layer.
The data layer, network layer and consensus layer are necessary elements to build blockchain technology. Without any layer, it cannot be called blockchain technology in the true sense; the incentive layer, contract layer and The application layer is not a necessary factor for every blockchain application, and some blockchain applications do not completely include this three-layer structure.
From a business perspective, blockchain technology has its own characteristics, that is, it is sufficiently digital, it is cross-border, cross-time and space, and cross-organization. The flow of data has no boundaries, so the blockchain is distributed at the same time, it is self-organized and decentralized.
So the reason for blockchainIn the future, the application of any new disruptive technology has always had two routes, or two methods. One way is to regard it as a tool and use it to improve the traditional business model and obtain an improvement in marginal benefits. The other is to treat it as a system to reconstruct the underlying logic of business.
There is a good example of these two application methods in the past few years. When Internet companies are promoting "Internet +", we also see many traditional business organizations saying that it is not "Internet +" but "+Internet". So where are those people who shout "+Internet" now? Some people think that the Internet is just a technology used to improve traditional things, and some Internet technologies can be added to traditional things. For example, if you use the Internet as email, you build an email system and think it is the Internet. But some people treat the Internet as a system and reconstruct the business from the bottom up. In the end, you will find that you are unemployed.
The second is decentralization. Why go to the center? Regional center technology in business has brought about business decentralization, which is an inevitable trend in history. Where is this trend? I think there are two points. One is economic globalization and entering version 2.0. Now through the Internet, it is no longer the company that is globalizing, nor the company turning itself into a multinational company, but the Internet is empowering any individual, so that it can sell its products through the Internet in a small county in China. worldwide. When economic globalization develops to personal globalization, solving point-to-point transactions and point-to-point services becomes a prominent issue. Then the real-time clearing and settlement and point-to-point transaction settlement brought by blockchain technology can just help the globalization of personal business activities.
The third is the digitalization of the economy. When data is collected to a certain extent, its circulation is basically across time and space. The demand for financial payments from commercial activities is carried with them anytime and anywhere, and it is impossible to provide scenario-based and virtualized payment settlement anytime, anywhere and on demand. Services will eventually be eliminated by technology and the market.
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⑤ What is blockchain technology and what aspects it may be used for in the future
< p>The development of technology is often beyond your imagination, from the agricultural revolution to the industrial revolution to the information revolution, and now the blockchain revolution has begun. Reaching the height of the cognitive revolution should be considered a relatively big proposition. Why did the previous emergence of the Internet, big data, artificial intelligence, etc. not mention the cognitive revolution, but blockchain can?How to quickly enter the blockchain industry?
1. Find the top experts in this industry and learn or communicate with them, such as Li Xiaolai, such as Uncle Cai
2. You can buy some books. News books are not as mixed as Taobao. There are only a few classics, choose a few and read through them
3.You can search for more relevant articles, public accounts, Zhihu or others, which contain a lot of information. You will find that after reading 30 high-quality articles, you have basically got started.
WeChat public account: Workplace Cheese Pie, tell you about things in the workplace
⑥ What exactly is blockchain and which blockchains have physical applications
What is blockchain?
Official definition: Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission consensus mechanism encryption algorithm, etc. The so-called consensus mechanism is a mathematical algorithm that establishes trust and obtains rights and interests between different nodes in the blockchain system.
Vernacular understanding: A block is to package all the data generated within a time period in chronological order. Generally, the length of a block is 10 minutes, which means that within 10 minutes, all the data on the Internet will The data is packed into a complete package, and this complete data package is called a block. The blockchain links these data packages in order to form a structure, and cryptographically ensures that it cannot be tampered with or forged to form a distribution. ledger, this is the blockchain.
It seems that everyone has a preliminary knowledge and understanding of the blockchain. So whether the blockchain has any practical application in daily life, the answer is yes, the current practical application There are mainly the following aspects. Of course, I may not know some of them. Friends are welcome to leave messages to add.
Financial Industry
Blockchain should be used the most in the financial industry.
For example, in May 2017, OMG (Omise Coin) announced that it would cooperate with Alipay to launch an electronic wallet, integrating the "Alipay" payment solution into its own payment service suite to help local electronics in Thailand. Business merchants accept online payment transactions from Chinese tourists.
Another example is PPT, which is a financial transaction system for bills based on blockchain.
Gaming
The gambling industry entered the blockchain probably last year. Why does gambling favor blockchain? Because blockchain provides a relatively fair betting system. Why? It is relatively fair. As can be seen from the previous introduction, the blockchain cannot be tampered with or forged.
For example, WICC (WikiChain) can realize rich application scenarios such as asset issuance, betting applications, copyright traceability, mutual insurance, decentralized exchanges, and cross-border settlement.
For example, the STX (King of Fighters Token) stox application is designed to provide the full functionality of a prediction market application without the need for any central server. Prediction markets require functions such as event planning, market production, providing information and analysis to traders, reporting event results, and of course collection and payment.
I believe that if the current lottery industry is built on the blockchain, people will become more and more enthusiastic about buying, because there are too many insider tips that make people give up.
Internet of Things
Internet of Things inThere are still many applications on the blockchain, because the traceability and immediacy of blocks are very suitable for this industry.
For example, DATA is the concept of the Internet of Things. It is a decentralized p2p network. Data sources can connect to any node in the entire network, then publish data, and the network will immediately send it to subscribers. Horizontal scalability is achieved through sharding pattern. This timeliness and accuracy are very important in IoT applications.
Game industry
For example, GTC (G coin) is a decentralized digital asset based on Ethereum erc20 issued by Game Global. G coin is committed to becoming a universal number in the global game industry. Monetary standards.
For example, MANA is a distributed shared virtual platform. On this platform, users can browse and discover content and interact with other people and entities. Users can also claim ownership of virtual territories through a blockchain-based land ledger. The territory is demarcated by rectangular coordinates (x, y), and its owner can decide the content published on the territory, including static 3D scenes to interactive systems such as games.
There are many other industries. The emperor did not list them one by one, but listed a few representative ones. What is the purpose? It shows that the blockchain is definitely not just a currency transaction, it is a real implementation project, and it is a product of the changes of the times with real practical uses.
The development of human society is actually like the blockchain, it is irreversible and unstoppable. As far as I feel, the blockchain will enter thousands of households sooner or later. Regardless of whether it is bull or bear, hold it in your hands. Value coins and Flush have started quoting digital currencies, which shows that society is accepting it step by step. The power of social development cannot be blocked by any country or person.
⑦ Energy Blockchain Research | Blockchain use cases in the energy industry
If implemented properly, blockchain technology has the potential to revolutionize all aspects of the energy industry.
As the energy industry becomes increasingly decentralized, blockchain technology is ideally positioned as a major disruptive force. In fact, companies around the world are already developing blockchain applications to create direct connections between energy producers and consumers.
Blockchain is a virtual public ledger that records transactions in a secure and transparent manner without the need for third parties such as banks, public institutions or electricity providers to act as intermediaries. But how exactly can blockchain be used to improve operations in this area? Let’s explore some of the most exciting applications of this promising technology in the energy sector.
Energy Sector
◆Facilitates peer-to-peer energy trading◆
Traditional energy delivery models rely on centralized power plants millions of miles away, which are located Electricity is transported on transmission and distribution lines, commonly known as the "grid". The less discussed “microgrids” are local grids that can connect and disconnect from the traditional grid when necessary. Microgrids Harness Wind Energyand local energy sources such as solar power to power local loads.
Microgrids enable consumers to both produce and consume energy, giving them the opportunity to become "product consumers." As producers, they are able to sell any surplus energy they may have on a pay-per-use basis to peers connected to the same microgrid. Blockchain technology facilitates this peer-to-peer energy trading by providing microgrid members with a secure and transparent distributed ledger. This provides a highly reliable and cost-effective way to create, verify, record and coordinate peer-to-peer energy transactions in real time.
Energy Sector
◆Let electric vehicles continue to drive◆
According to data from BloombergNEF, global electric vehicle sales exceeded 2 million units in 2018, more than at the beginning of this century There is a significant increase in the number of thousands of vehicles a year. Additionally, Bloomberg expects this number to increase to 10 million by 2025 and 56 million by 2040.
With more and more electric vehicles on the road, private charging stations are likely to become valuable assets, requiring an efficient system to coordinate energy transactions between drivers. Blockchain technology can be used to create a system that can monitor electricity prices, make pricing decisions in specific markets, and enable charging station owners to conduct secure transactions.
Energy Sector
◆Simplify regulatory procedures ◆
Energy companies need to submit large amounts of data to regulators to prove their compliance with various regulations. Collecting and cleaning all this data using current technology is not only tedious, but also creates serious problems related to incorrect data access. The more data you process, the more people you need to be involved, and the greater the chance of accidental exposure of sensitive company information.
Because blockchain ledgers are both immutable and completely transparent, introducing them into energy companies’ operations will give regulators the greatest confidence that the data they receive is unedited. The introduction of blockchain will also give energy companies unparalleled control over what information is shared with whom, all but eliminating the possibility of sensitive data falling into the wrong hands. To boot, blockchain technology introduces the ability to standardize data collection and transmission formats.
Energy Sector
◆ Expanding energy access ◆
Many communities around the world are not connected to the grid. Energy in these communities often comes from local solar panel projects, many of which do not receive adequate funding.
Crowdfunding can help close this financing gap. The idea here is for individuals or other small investors to pool their resources to purchase enough photovoltaic cells to build the necessary number of solar panels for a given community without electricity. These micro-investors retain portions of solar panelsFor ownership, and to earn income, the community pays a marginal amount each month for the electricity generated by the solar panels.
Introducing blockchain technology into this process will alleviate many of the problems that plague traditional crowdfunding. First, blockchain-based crowdfunding will enable anyone with an internet connection to donate to a campaign, which is simply not the case with traditional crowdfunding platforms. Additionally, just like peer-to-peer energy trading within microgrids, blockchain technology can reduce the overall cost of monthly transactions between solar panel owners and the community powered by the panels. Finally, because blockchain is completely secure and transparent, blockchain greatly reduces the chance of crowdfunding fraud. On the contrary, it is difficult for traditional crowdfunding platforms to eradicate this kind of fraud.
Energy Sector
◆ The bright future of blockchain◆
These use cases show that blockchain applications have the potential to revolutionize our energy consumption, transactions, Regulation and financing methods. Once key stakeholders in the energy industry get involved, blockchain may well become the key to keeping the lights on for millions of people around the world.
National Energy Information Platform contact number: 010-65367702, email: [email protected], address: People’s Daily, No. 2 Jintai West Road, Chaoyang District, Beijing
