区块链在租售房产中的应用,区块链在租售房产的应用
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A. What is the use of blockchain besides Bitcoin?
Virtual currency is not the only way out for blockchain. Here are a few already implemented and relatively common blockchain applications
Finance
Except for special applications like Bitcoin, in traditional finance In the industry, blockchain technology also has various emerging opportunities. Identity authentication, financial transactions, payment and settlement, and supply chain finance all have their application scenarios.
Because of the non-tamperability of blockchain technology, the trust in the financial industry has been further enhanced. Participants in the chain can query each other's information without having to establish connections through a centralized system. This not only improves work efficiency, but also reduces risks.
Games
The traditional online game industry almost always connects all users together through a server-centered star network. The responsibilities of the server include running applications, transmitting data, saving data and other functions. With the continuous increase of users and the continuous iteration of versions, the pressure on the server and the cost of enterprise investment are increasing day by day.
The distributed computing of blockchain allows each client to undertake certain computing and storage tasks, which not only reduces the pressure on the server, but also further improves data security. .
Electronic Contracts
Traditional paper contracts have disadvantages such as difficulty in confirming the signing identity, easy tampering and loss, and difficulty in management. With the development of the Internet, electronic contracts have played an important role in meeting corporate needs to improve efficiency and reduce costs.
The addition of blockchain technology makes electronic contracts more secure and reliable. Taking the Fada Electronic Contract as an example, through the "Fa Chain" alliance that cooperates with Microsoft (China) and Onchain, important digital fingerprint information on the electronic contract such as the signing time, signing subject, and file hash value of the Fada Electronic Contract will be It is broadcast to the respective nodes of all members. Once all information is stored, no party can tamper with it. At the same time, the hash value information of the file is also simultaneously stored in the national authoritative electronic data forensic identification center, which fully meets the requirements for judicial storage of electronic evidence.
Copyright
Although people's awareness of copyright is constantly increasing, with the increasing number of electronic devices and increasingly convenient data transmission, pirated products still belong to the creators. A piece of heart disease. What worries the original author even more than piracy is the series of disputes caused by the inability to confirm that he is the original author.
The addition of blockchain makes copyright confirmation more convenient. After the author completes the creation, he can register and save the certificate on the blockchain platform. This kind of time-stamped, non-tamperable certification document can give the creator a higher voice.
Logistics
Nowadays, there are many well-known products that are adulterated or replaced with other items during transportation. Traditional anti-counterfeiting signs,Today, as criminals' technologies become more and more comprehensive, they have frequently shown a sense of powerlessness.
There are now some large companies that have applied blockchain to logistics and supply chains. Through technology that cannot modify data on a single node, the process in each transportation link will be traceable. There are already cross-border logistics companies in China, which have used this technology to gradually realize the traceability of overseas commodities, traceability of international logistics and import declarations, traceability of domestic logistics and even traceability of production enterprises. Such an application will undoubtedly gradually increase consumer confidence and build brand authority.
I believe that in the future, this underlying technology will be used in more industries and scenarios.
B. What impact does blockchain have on real estate?
Blockchain may affect the real estate market in five aspects.
To understand how blockchain could improve the real estate market, five members of the Forbes Real Estate Council measured its impact and concluded with the following:
1. Accelerate the transaction process
Using blockchain tokens, there is no need to go through property rights investigations or middlemen to protect property rights transfers. By using a blockchain distributed database to prove the authenticity of transactions, household owners can quickly transfer property rights without the need for third-party verification. The technology could revolutionize the real estate industry by making escrow companies obsolete.
——Hillary Hobson, Highest Cash Offer
2. Increase transparency
One of the biggest costs of real estate transactions is the lack of transparency. One is transaction friction caused by too many middlemen (think custodians, underwriters, brokers). Blockchain enables all transactions to be conducted peer-to-peer without the need for middlemen, and all information records are completely transparent. This leads to efficiency and trust.
——Ridaa Murad, BREAKFORM | RE
3. Protect online data storage
In addition to cryptocurrencies, blockchain technology can also protect online data storage. In the future, it can be used to store all property records, such as title, apartment, land survey, property chain, etc. Blockchain may eventually become part of multiple listing services systems. Uses beyond cryptocurrencies will become widespread.
——Roger Blankenship, Flipping America
4. Cost-effective and trustworthy
Blockchain will eliminate dependence on title insurance and increase Transaction efficiency and confidence. It can also add transparency to the entire buyer platform, making financial considerations like difficulty affording attorney fees less of a factor in understanding title and ownership issues.
——Susan Tjarksen, KIG CRE LLC
5. Make important information publicly available
Gordon Gekko himself said, “The most valuable commodity I know is information.” Blockchain will become a repository of information. A lot of information, once entered properly, can be valuable. When institutions have good information, and that information is public, risk is greatly eliminated for all counterparties who have trading relationships with those institutions.
The information comes from the Internet, I hope it can be helpful to your question.
C. Blockchain has officially entered the 3.0 era, and real estate, supply chain, etc. will become key application areas
With the continuous development of blockchain, the scope of blockchain application coverage More and more widely, with the improvement of scalability and efficiency, the application scope of blockchain will go beyond finance and expand to fields such as logistics, real estate and the Internet of Things, becoming a bottom-level protocol in the future society, which means The blockchain will enter the 3.0 era.
The blockchain 1.0 era is represented by BTC (decentralized concept), which plays more of a distributed accounting role, such as BTC, Ripple, BCH, Litecoin, Dogecoin, etc. It is more used for digital currency accounting. Of course, the development in the first stage is not perfect. Bitcoin still has many problems that need to be solved, such as expansion, lightning payments, hard forks, etc.
With further completion, the blockchain has entered the 2.0 era, represented by ETH (smart contract), entering the contract stage.
Blockchain 2.0 represented by ETH is a great progress, but there are still many problems, such as channel congestion, slow transaction speed, and fork risk. High handling fees and so on. For example, after the popular CryptoKitties were launched on the Ethereum platform, they occupied about 25% of the Ethereum network at its peak, causing congestion on the entire Ethereum network and seriously affecting the experience of other Ethereum users. . The current development is a transition process from the first stage to the second stage.
After bidding farewell to the 1.0 and 2.0 eras, thanks to the continuous development of technology, blockchain has become more practical. This also means that the blockchain will completely break away from the financial attributes of the start-up period and enter practical application scenarios in all walks of life with its decentralization and other characteristics.
This also means that the blockchain has officially opened its 3.0 era - the era of comprehensive application. The blockchain industry structure in the 3.0 era is also more complex. Today I will give you a brief analysis.
The blockchain industry in the 3.0 era is divided into basic layer and service layer, three levels of application layer.
(1), Basic layer
The corresponding upstream, middle and downstream of the industrial chain include: upstream underlying technology and infrastructure (core technology, equipment, underlying platform deployment method), the midstream service layer mainly provides developers with applications based on blockchain technology; the downstream application layer includes finance, supply chain management, intelligent manufacturing, government enterprises, services, social applications, etc.
Hardware, technology and infrastructure manufacturers mainly provide chips, mining machines, mining pools, hard drives, routers and other infrastructure necessary for blockchain applications.
The underlying platform deployment methods can be divided into public chain, alliance chain, and private chain.
The underlying technology includes core basic components, protocols and algorithms. Based on the underlying core technology components, it provides different functions for different application scenarios, including smart contracts, programmable assets, incentive mechanisms, member management, etc.
The base layer provides the underlying blockchain or distributed ledger technology framework, mainly including Ethereum, Hyperledger Fabric, R3 Corda, FISCO BCOS, etc.
(2) Service layer
The service layer refers to the BaaS (Blockchain as a Service) platform. The main domestic BaaS platforms are Ant Blockchain BaaS platform, Tencent Cloud TBaaS, Ping An One Account BaaS platform, etc.
It mainly provides developers with applications based on blockchain technology, and provides smart contracts, information security, data services and other products based on the underlying technology. services to improve the convenience and scalability of developers developing applications at the platform layer.
Application and service vendors are responsible for the research and development of general blockchain technology and technology expansion platforms, the construction of digital currency education and storage platforms, and provide technology for the industry application layer. support.
(3) Application layer
The application layer is represented by core application components, including smart contracts, programmable assets, incentive mechanisms, member management, etc.
Refers to the end user or service provider of blockchain. The main application scenarios of blockchain now include cross-border payment, anti-counterfeiting traceability, and supply chain. Finance, trade finance, electronic bills, ABS, etc.
Service objects are divided into two categories: B-side (initial stage): blockchain + (finance,Supply chain management, copyright protection, education); C-side (first to implement): Blockchain + (sharing economy, pan-entertainment).
The downstream blockchain application field is the combination of blockchain technology and existing industries. Now, Many industries have begun the application era of blockchain 3.0.
(1) Blockchain + supply chain
Blockchain + supply chain enables full-process traceability of product information. The traceability and anti-counterfeiting system of the traditional supply chain has shortcomings such as opaque information, easy data tampering, poor security and relative closure. However, using blockchain technology and Internet of Things technology, the information on the raw material purchasing process, production process and circulation process of goods can be processed. Integration and traceability can truly realize the full-process authentic traceability across brands, channels, retailers, and consumers, down to each item and code, significantly improving user trust experience.
(2), Blockchain + Internet of Things
Build an information exchange network in the era of Internet of Everything. As the number of devices in the Internet of Things grows, the distributed nature of the blockchain provides a way for self-governance of the Internet of Things, which can help devices in the Internet of Things understand each other and understand the correlation between different devices, thereby realizing the distribution of the Internet of Things. type control.
(3), Blockchain + Medical
Ensure the safe sharing of medical data. Using blockchain technology to mathematically encrypt medical data can effectively prevent risks such as malicious modification of medical data. The medical data sharing and exchange system developed using blockchain technology uploads encrypted medical data, allowing data to be shared and circulated quickly, efficiently and securely between patients and medical institutions, effectively simplifying the management of medical data. Call process to provide data guarantee for accurate diagnosis of illness.
(4) Blockchain + Real Estate
There are many potential application scenarios of blockchain in the real estate industry. Common ones include: Real estate transactions. Pain points in the process of buying and selling property include: lack of transparency during and after the transaction, reams of paperwork, potential for fraud, errors in public records, and that’s just to name a few. Blockchain provides a way to achieve the need for paperless and fast transactions. In addition, real estate blockchain applications can help record, trace and transfer title deeds, deeds, liens, etc., and also provide a platform for financial companies, title companies and mortgage companies. Blockchain technology strives to securely preserve files while enhancing transparency and reducing costs. In addition, blockchain is also applied in the field of construction engineering, and many companies are applying this technology in the current urban renewal boom. For example, Lanfang in ShenzhenLian has proposed a package of solutions such as blockchain + urban renewal/construction engineering/real estate development based on blockchain, which comprehensively serves many fields in the real estate industry. Currently, its official website and mobile applications are online.
In addition, blockchain has already had many applications in supply chain finance, stock trading, banking, etc., so I won’t go into details here.
As one of the important contents of my country’s 14th Five-Year Plan, officials have long proposed to accelerate the promotion of blockchain Technological and industrial innovation and development, and actively promote the integrated development of blockchain and economy and society.
The key to achieving the above two developments lies in the following two points:
1. Breakthrough in the core technology of blockchain technology.
Blockchain technology is currently the technology with the smallest gap between my country and Europe and the United States. Officials particularly emphasize that in this emerging field, my country must be at the forefront of theory, occupy the commanding heights of innovation, and gain new industrial advantages. It is necessary to promote collaborative research, accelerate breakthroughs in core technologies, and provide safe and controllable technical support for the development of blockchain applications.
At present, most of the blockchain technology is still in the conceptual hype stage, and many business scenarios use blockchain purely for the sake of blockchain. So far, no one in our country has been able to solve core technical dilemmas such as the ternary paradox on a global scale. Therefore, we must return to basic theories and core technologies and achieve major breakthroughs through long-term and concentrated research.
In fact, the official has put forward very high requirements for the theoretical technology and subsequent application development of blockchain technology. Do a good job in basic theoretical research on blockchain, Focusing on conquering a number of key core technologies and truly shouldering the burden of technology research and development is the key to the current development of blockchain.
2. Enhance international voice and rule-making power.
Different from previous information technologies, blockchain technology is highly scalable, or aggressive. Its rules or right to speak determine its scope of influence, because every business on the chain is Individuals or institutions must obey the rules set by the blockchain, whether at home or abroad. For example, when using the Windows system, everyone must obey the rules of Windows, but Windows only stipulates the rules for information interaction for users, which is acceptable to us, while the blockchain stipulates industry governance rules. With its distributed characteristics, the governance rules of the blockchain can quickly transcend national borders and geographical restrictions.
In order to achieve the above two points, we must strengthen the construction of the talent team, establish and improve the talent training system, create various forms of high-level talent training platforms, and cultivate a group of leaders and high-level innovation teams.
Blockchain, as an architectural innovation technology, has a huge demand for comprehensive talents, requiring practitioners to master a variety of professional and technical knowledge involving cryptography, information science, basic mathematics, etc. To develop blockchain, we must strengthen the construction of a talent team with deep cross-integration of disciplines, and establish a talent cultivation system in a forward-looking and systematic manner from the aspects of basic research, applied research and development, and industrial integration.
Blockchain technology is an important part of the future digital economy and has rich advantages for all walks of life. Although we have entered the 3.0 era, the vertical application of blockchain in various industries has just begun.
What do you think of the future of blockchain?
D. Blockchain in the past 12 years: In what fields has it been applied?
#「 Shining Moment」Theme Essay Issue 2#
People have said this countless times Talking about the applicable scenarios and application opportunities of blockchain. But in fact, it is very stupid and ridiculous to simply and crudely bundle blockchain with all businesses.
If you just use the word "blockchain" (rather than the technology behind it) to hype it, the result will be in vain. But if used properly, blockchain can indeed promote the development of certain economic sectors.
To achieve this goal, you need to take it slowly, step by step. Gartner experts believe that blockchain is currently on the verge of “escape from fantasy” stage. At this stage, its technical shortcomings were fully exposed, and most media from all walks of life were critical.
So, are there any good products that are truly based on blockchain? If so, in what areas?
First of all, financial services are a good choice. After all, many traditional intermediaries suffer from low transparency and high commissions. Currently, many large banks are already researching and testing decentralized solutions. So what are the options available on the market now?
Netting is a good example. It is based on Hyperledger Fabric and is capable of offsetting multiple positions or payments resulting from transactions between two or more parties. Often used to determine which party should receive remuneration in a multi-party agreement. Netting, as a general concept, has many more specific uses in financial markets (in securities trading).
In addition, there is endless discussion about blockchain bonds, mortgages and bank guarantees. Almost all big banks including Islamic banks, are all trying this approach.
Hyperledger Fabric and Corda blockchain technologies are also often used in other use cases, but the prospects require us to draw final conclusions through continued follow-up and observation.
Bank of America, Goldman Sachs, Citibank, Morgan Stanley, JPMorgan Chase, Bank of China and Commonwealth Bank of Australia have all achieved good results in 2019. In addition, in the banking industry, people often talk about cross-border financial transactions, and there is even an intention to get rid of SWIFT.
Some people believe that blockchain technology has great prospects in copyright protection and combating data fraud. For example, for the purpose of copyright protection, the startup Sputnik DLT developed the Depositor service on the Waves platform.
Likewise, Emernotar is a similar solution based on Emercoin, using the SHA-512 algorithm. According to the developers, businesses and lawyers can use the Emernotar service to sign contracts, use online services to collect user consents, and creative industry representatives to confirm copyright.
The democracynotary.org platform, powered by Emercoin technology, aims to protect important election-related information. Although the blockchain cannot yet guarantee the anonymity of voting during the election process, it can at least guarantee the authenticity of voting.
The effectiveness of this platform was recently put to the test in a Macedonian referendum on ratifying a treaty with Greece that called for changing the country’s name to “North Macedonia.” ". The platform notarized public reports from the referendum process, thereby blocking the spread of false information.
Blockchain use cases are extremely promising in the registration of real estate transactions. Last year, there were attempts to leverage smart contracts on the Ethereum blockchain to conduct such buy/sell transactions in jurisdictions. While not all local legislatures understand what lawyers are doing, there have been and will be attempts.
For example, the most famous example was a deal to sell 10 acres of land through a decentralized Propy marketplace in California, conducted entirely in Bitcoin and using blockchain To register. Since then, the EU has also completed its first blockchain real estate sale.
In December 2018, the Swiss Financial Market Supervisory Authority approved the business model of the blockchain company “Blockimmo Real Estate Company”. Currently, the Blockimmo platform is in a testing phase and is available to residents of Switzerland and Liechtenstein. After that, the company plans to enter other markets throughout Europe.
Some experts are very optimistic about the application prospects of blockchain in the wholesale and logistics fields; but at the same time, some experts believe that it has no use in this field. However, as consumers, we should recognize the success that has been achieved in the industry.
In the late autumn of 2018, oil giants BP and Shell, as well as large banks and companies, launched the Vakt blockchain platform, which aims to optimize the commodity transaction process - including converting paper documents into smart contracts .
At the same time, the UAE is also using blockchain technology in the field-Maqta Gateway LLC launched the first blockchain logistics solution in Abu Dhabi. The Silsal blockchain technology developed by the company can improve logistics and freight efficiency. Maqta Gateway hopes to use DLT technology to reduce paperwork, facilitate real-time status updates and speed up information sharing.
Last fall also launched the IBM Food Trust Blockchain Platform - based on Hyperledger Fabric technology and designed to regulate the food industry supply chain. Well-known companies such as Carrefour, Nestle, Dole Food, Tyson Foods, Kroger, Unilever, and Walmart are among the Platform members. Monthly fees for IBM blockchain services range from $100 to $10,000, which explains why these industry giants are willing to invest in this area.
The decentralized Shelf.Network auction protocol was launched in the fall of 2017. Car dealers can conduct car sales and leasing transactions through the platform.
A year later, the auction network received investment from Japanese IT giant Broadleaf. At the same time, Broadleaf has also obtained a license to supply Shelf.Network technology to establish a trading network for automobile and parts sales in Southeast Asian countries (including Japan, Myanmar, Thailand, Indonesia, Vietnam, Laos, Australia, India and Singapore).
By the end of 2018, 60,000 vehicles from the United States had joined the service network. Shelf.Network also implements interaction with the Carfax web service, through which vehicle history reports can be provided to individuals and businesses. For example, startup Auto1 Group GmbH recorded the purchase of a car in Germany through blockchain for loan and insurance products, significantly speeding up the transaction (which would have taken two weeks to complete with traditional paperwork).
All walks of life in the industry believe that DLT technology can simplify and speed up mutual settlement processes, eliminate various financial risks, and automate processes. As in the field of wholesale logistics, this technology also has important application significance in the field of transportation.
Blockchain technology is also gradually penetrating into the public sector and is widely used in document authentication processes. For example, the Proofstack service is able to archive files with the owner’s personal signature, date and time stamp, and then writes the archive hash to the blockchain. Users can also select the country that affects the type of timestamp, as well as the storage location (computer, cloud) required to generate the archive. Created archives allow people to identify when and by whom a file was archived. At the same time, the application of blockchain in the judicial system is becoming more and more popular. For example, ServeManager and Integra have applied blockchain technology to services that track subpoena delivery.
In China, government-backed blockchain solutions continue to develop rapidly. Its judicial blockchain system "Tianping Chain" has collected about 1 million pieces of online evidence data just three months after its release. All materials submitted on the platform are DLT certified, totaling 190,000 documents. The platform electronic evidence system was jointly developed by the Beijing Internet Court, the China Industrial Control System Emergency Response Team (CICS-CERT), the Research Center of the Ministry of Industry and Information Technology, the Network Internet Group and the TrustDo blockchain startup. The platform is based on the hyperchain infrastructure of the Internet giant network, optimizes the evidence collection and storage process, and ensures the authenticity of the data through the blockchain. In addition, the platform also achieves the purpose of saving time and resources by reducing Internet-related litigation costs.
As a global leader in container shipping, Maersk began using Insurwave blockchain solutions last spring. The marine insurance platform was jointly developed by consulting firms EY and Guardtime and is based on Microsoft Azure cloud technology. In the first year of cooperation with Insurwave, Maersk plans to insure 1,000 ocean-going vessels, and the total number of digital transactions will exceed 500,000.
Currently, platform users include Willis Towers Watson, XL Catlin and MS Amlin. Developers are trying to expand Insurwave's capabilities to expand insurance into the aviation and energy sectors.
Calastone, a British financial technology company specializing in investment flow management, announced that it will transfer all calculations to the blockchain. The company expects the technology to help cut billions of dollars in costs across its global settlement division. Calastone provides risk assessment management services, IT infrastructure and payment solutions to more than 1,700 companies, with clients including JP Morgan Asset Management, Schroders and Invesco.
If the enterprise's goal is to achieve transparency of transactions and information entered into the DLT registry, this will create an excellent application scenario for blockchain; however, if the enterprise is pursuing anonymity or "tracking "In financial transactions, there is no opportunity for blockchain to exert its influence.
Singapore Power Group has launched a blockchain trading market for renewable energy (REC) certificates. Its company representatives said the "in-house developed" platform was designed to improve the security, reliability and traceability of such certificate transactions.
REC certificates are certificates that certify the amount of energy released by solar panels and are sold by Cleantech Solar Asia and LYS Energy Solutions. City Developments Limited and DBS Bank, who are interested in purchasing certificates, are both very interested in the platform. Katoen Natie Singapore has also joined the platform and plans to launch renewable electricity production capacity soon.
KT Corporation, South Korea’s largest telecommunications company, has also launched its own blockchain network, with distributed registration technology involved in user authentication and improving international roaming services. This enables KT to securely transfer customer data to its partners. Network bandwidth can handle 100,000 transactions per second.
Time will tell whether these initiatives gain mass market acceptance. Likewise, the applications of blockchain in power, data, and user-identified accounts/records/transactions are old news.
At the end of 2017, the Massachusetts Institute of Technology (MIT) used the Blockcerts wallet, which can issue a "verifiable, tamper-proof" authentication certificate, to more than a hundred people through the Bitcoin blockchain. Graduates were issued digital diplomas.
The pilot project is supported by software company Learning Machine, which was involved in the development of Blockcerts together with Media Lab.
The purpose of this is to allow students to become the true owners of their own files. LEarning Machine CEO Chris Jagers said that even if the agency ceases to exist one day, people will be able to extract important official information stored in it.
The same approach is used by Tbilisi University of Business and Technology: the university uses a similar blockchain platform, Trusted Diploma, through a partnership with Emercoin. The platform is able to restore registration data (subjects studied, quality of training and scores obtained) with the help of blockchain. From this point of view, in the future, blockchain may be useful in further promoting digital learning methods.
E. How to introduce blockchain in 3 minutes in a simple and easy-to-understand manner and what its commercial value will be in the future
There is a real story about an engineer from Ant Financial. I wrote a blind date resume, and the job description in it was "code farmer", but no one clicked it for a long time. Later, he changed his work experience to "blockchain" and received 381 love letters at once.
From workers in high-tech industries to square dancing aunties, it seems that everyone is participating in the blockchain carnival. So what exactly is the seemingly mysterious blockchain? After reading the following content, you will have completed the journey from beginner to beginner.
1. What is blockchain?
To put it bluntly, the blockchain is "everyone keeps accounts together." Any database needs a big housekeeper to be responsible for "accounting" (maintaining the system and entering data). But after using blockchain technology, the concept of this "central steward" disappears, and each of us can participate in accounting. So the question is, whose record will ultimately prevail? Of course, it is the person who completes the work well and quickly. A system that strictly adheres to fairness will select this person based on the algorithm, write the contents of his records into the ledger, and send the contents of the ledger during this period to everyone in the system. of others to make backups.
Any new thing must have unique advantages if it wants to develop rapidly, and the same is true for blockchain technology. First of all, blockchain technology ensures the security of the system. In the absence of a central steward, everyone is a defender of the home, which means that destroying some nodes has no impact on the system at all. Second, the recording process cannot be cheated. In the blockchain systemEveryone has the same ledger and the entire process is open and transparent. The system will determine the final result based on the opinions of the majority. It is difficult for an individual to hack into so many computers at the same time, and it is meaningless to just modify one's own results. Who would do such a thankless task? Third, and most importantly, the blockchain completely abandons the existence of "credit intermediaries". Credit intermediaries are the platforms we must pass through when transferring money, such as traditional banks. Now any two strangers can directly complete mutual trust transfers, and the efficiency has been improved not only a little!
3. What is the use of blockchain technology? ?
As mentioned above, the main advantages of blockchain are that it does not require intermediary participation, the process is efficient and transparent, the cost is very low, and the data is highly secure. That is to say, any industry that has needs in these three aspects can use blockchain technology. Here are a few examples:
In the banking industry, the use of blockchain technology is equivalent to updating a digital, secure and tamper-proof General ledger books. In fact, Swiss bank UBS and Barclays Bank in the UK have already begun experiments, hoping to use it as a way to accelerate back-end system functions and clearing and settlement capabilities. Some institutions in the banking industry claim that blockchain may reduce middleman costs by 20 billion.
In terms of car rental, blockchain also has great potential. A future customer selects the car they want to lease, entering it into the blockchain's public ledger; then, sitting in the driver's seat, the customer signs the lease agreement and insurance policy, while the blockchain updates the information simultaneously. This is a foreseeable future for car sales and car registrations.
In terms of medical and health care, blockchain technology allows hospitals, patients and all parties in the medical benefit chain to share data in the blockchain network, and Don’t worry about data security and integrity. This means more accurate diagnosis, more effective treatment, and an improvement in the health system’s overall ability to deliver cost-effective care.
Blockchain is not cold-blooded. It has been implemented in applications that are closely related to our lives. For example, the application of Ant blockchain ranges from public welfare, to mutual insurance, to traceability of product authenticity, to traceability of rental housing.
In 2018, blockchain will "return to the world."
Blockchain, do you really understand it? Since it says three minutes, let’s give a simple answer.
1. What is blockchain;
2. What are the benefits of blockchain;
3. What are the uses of blockchain;
< p> 4. Blockchain technology and existing problems;Let’s first look at the first question: What is blockchain
Let’s look at it literally, blockchain Chain is called Blockchain in English. This is a very good word. The English name is well chosen and the Chinese translation is also very beautiful.
1. What is a "block"?
You can think of it as a record, or anything, which forms such a record during the production stage. This thing can be any physical or virtual object in the Internet of Everything.
For example, if you generate a Bitcoin, which is a thing, it actually corresponds to a block. This block is a record of what it is.
When you produce a bottle of medicine in the future, a block is actually generated when this bottle of medicine is produced. When it leaves the factory, it needs to be recorded once, and this corresponds to it one-to-one.
This is the first dimension.
To make it easier to understand, for example, each of us is born with a unique identifier, which is our DNA. All species in the world have different DNA. Every individual's DNA is different.
Your parents can name you Zhang San, Li Si, Wang Wu. These names can be repeated, just like a bottle of medicine, whether it is aspirin or penicillin, these can also be repeated. famous. However, human DNA is different. Even if you have identical brothers and sisters, your DNA is different, so this is your unique identifier. And once your DNA is formed, it cannot be changed. This is a benefit of the blockchain.
2. What is "chain"? The chain is actually a process. You can think of it as a transaction process. After this bottle of medicine leaves the factory, it enters the warehouse from the workshop and passes through a certain door, and it will record the process.
Of course, this requires automatic computer recording, and the cost of human recording is too high. Then, packing is a process, and transportation to the cargo transfer station is another process. Then it is loaded into a car and transported to the wholesale station, which is the next process.
Every step of the process is recorded. It is a process to go from the wholesale station to the store, it is another process for the people in the store to receive this batch of medicines and put them on the shelves, and it is still a process for you to buy them. Finally, when the whole process is connected, you will have a way to track the entire process of this bottle of medicine and know its authenticity, because once this bottle of medicine is produced, it will be bound to the blockchain, as well as to people and people. The same is true for DNA binding, which cannot be changed, but it can be seen and detected.
Doctors can also determine whether this person is you by testing DNA.. So in terms of nature, if we virtualize it, it is actually a smart contract. You have signed a sales relationship with one of your customers. Once this happens, it cannot be changed. Then everyone can only execute it. This execution process is the same as the tracking of drugs I just talked about.
Second question: What are the benefits of blockchain?
1. Mathematically speaking, it is very beautiful. It changes from the past that you had to own something before you could know its properties to that you don’t own it, but you can ask questions Learned many details about it.
Mathematically speaking, this is a perfect asymmetric situation. You can tell whether it's true or false, but you can't change it.
2. Theoretically speaking, blockchain is very safe. For example, if you participate in the process of a bottle of medicine, others cannot see this information. That is to say When you buy this bottle of medicine, you can know where it comes from, but others cannot.
For the same reason, for example, if we sign a contract, others can verify the contract. If you go to a bank for a loan, he can ask you the amount.
However, he cannot obtain this contract, and he cannot steal this contract from your computer.
Blockchain also has some very interesting properties. For example, a block chain can be divided into two at will, or several can be combined into one, etc.
3. Blockchain is transparent, which means that everyone abides by this algorithm and there is no special agreement in private. So, if you believe in this algorithm, it means you believe in me and believe that I didn't do anything fishy. I will not secretly do anything in the contract to make you suffer losses.
This is a beautiful place theoretically and mathematically.
In the third block, let’s take a look at the uses of blockchain
1. Bitcoin is a cryptocurrency, and the Ethereum currency that everyone uses now is also a cryptocurrency. Of course, you can make another one based on it, either Zhang three coins or Li four coins. As for whether it can replace the currency of the future, this is doubtful.
2. Financing, we used to divide financing into three stages: the first stage is to get a loan from the bank. If you want to open a restaurant, you need to mortgage something. The second stage is that you issue some stocks and I sell 10% of the stocks, so that I can obtain part of the funds.
The third stage is actually crowdfunding. For example, if I want to write a book, it may cost 50,000 yuan for the publishing house to publish it. If any of you can give me 50 yuan at the beginning, I will use it in the future. Once the book is written, give everyone a copy. You will get the book, and of course I will publish it. But there is a problem. For example, if I sell this book for 100 yuan and you get it for 50 yuan, what if my book sells well?I bought 100,000 copies, but you don’t seem to have benefited from me. What should I do?
Is there a fairer way to measure everyone's contribution? One way is to issue a cryptocurrency (ICO). When the business we do becomes bigger in the future, you can benefit from it.
3. Smart contract, for example, sign a contract. In the future, the smart contract can become like this. All the nodes in the middle are determined when the contract is signed, such as building or decorating a house for you. , your payment must be given to me at any stage of the decoration. If you accept it, no problem, the payment will be automatically given to me.
You can even sign with my supplier, which means that as soon as my money arrives in my account, I will give it to my supplier immediately. This will eliminate many triangular debt problems in the future, including the problem of arrears to migrant workers.
Blockchain can also be used for property registration, car registration, etc. Of course, another great use is gambling. In fact, gambling is the most willing to adopt new technologies because it is closely related to money.
After talking about the benefits of blockchain, let’s take a look at the technology and existing problems of blockchain.
Today’s blockchain is basically the second generation and the first generation. It is the Bitcoin generation. It has many problems. It is not a platform, but is actually a specific application.
The second generation is represented by Ethereum. It is a platform on which you can issue your own coins, and it removes the concept of mining machines, so its transaction costs will be much lower. . The reason why ICOs are everywhere today is because with Ethereum, you can issue coins. Unlike in the past with Bitcoin, you had to completely copy its formula and copy it again. Today you are on Ethereum. , it is easy to issue your own currency, just like you can easily make your App on the Android operating system today.
There are three problems with Bitcoin transactions
1. The transaction delay is very long. I asked people who specialize in Bitcoin transactions and the delivery time ranges from two hours to two hours. Days wait, so it is very inconvenient for you to use it to launder money. After the RMB is converted into US dollars, it may fall by 20% in two days, and you will lose 20% of your money.
2. It cannot be distributed. Like Bitcoin, the early people took away a lot of its shares, so how to distribute it in the future is also a problem. No one knows clearly, so it is difficult to use it as a currency. a currency. Because if it really becomes a currency that everyone uses, it will be equivalent to the first few people taking away a large part of the world's property.
3. Transaction costs are high. For example, a cup of coffee at Starbucks in the United States costs $2.50 on average. You usually pay money at the counter, and the transaction time is only one minute. If you want to use Bitcoin, you have to wait two hours before you can get coffee, and the transaction costs are extremely high.The electricity bill is $20. In other words, if you pay $2.50 for coffee, the transaction cost of electricity is $20, so this is unrealistic.
Blockchain has high risks. This risk is not only a technical risk, but also a policy risk. In fact, this is also an opportunity. Whoever solves this problem will get the opportunity. Its transaction costs are also very high, so whoever can develop new underlying technologies and reduce this transaction cost will make a lot of profits in the future.
Some people say it is the next generation of the Internet. I don’t agree with this, but it will definitely be a supplement to the Internet. Some people say whether it can subvert the central bank, but this is not certain, because there is no reason why the central bank or these big banks cannot do this themselves, so those who expect it to subvert the central bank may be too happy too early.
Perhaps in the end it was these large financial institutions in the past that used the blockchain to update themselves.
Talk in the vernacular and get useful information!
Literally, blockchain is blocks and chains, and some relationship between them. It is essentially a distributed accounting method and a network database system that cannot be tampered with.
The current development directions include digital currency, payment, smart contracts, defi finance, web3 and so on. It is still in the initial stage of development and is a back-end technology. Most projects are still speculating and financing.
Today’s Afghanistan may best prove the value of Bitcoin, and there is no problem with value storage
Blockchain is not just a technology, it is a way of trust transfer, value The way it is delivered may have huge potential in the future.
Keywords: block, chain, database, ledger, Afghanistan, currency speculation, value, technology, market
First, what is a blockchain? Blocks and chains are an accounting method and a form of network data storage.
Literally speaking, blockchain refers to blocks and chains. This block actually records the transaction records of the entire network, or the execution result data of smart contracts, etc.
Every once in a while, the entire network will produce a block. This block records all transfer data, and the blocks need to be connected by some kind of "chain".
This chain is an encryption algorithm. Some information of the previous block is used to calculate and obtain certain information of the next block. They are linked together. The latter block can trace back to the previous block and needs to be modified. The next block must modify the previous block, all the way to the first block. Regarding the details of these issues, I have written many articles before. If you are interested, you can go back and take a look.
Blockchain is actually an accounting method, or a database storage method. Please pay attention to what I say below. The whole process is the operating mechanism of blockchain.
Each node in the entire network has the same status, run the same program. This program is used to collect, encapsulate and package all transaction record data records that occurred in the entire network within a period of time. Then broadcast it to the entire network
Let’s take Bitcoin as an example. Once this packaging and encapsulation is completed, you can obtain the right to produce the block. A certain amount of Bitcoin can be issued every time a block is produced. Since the nodes in the entire network run the same program, there is no center to control everyone. Therefore, the currency issued is irrevocable and cannot be changed.
How to decide who has the right to make a block? This requires the use of the so-called consensus mechanism, which is to establish a rule and use who produces the block as the benchmark to solve the problem of network consistency. The mainstream consensus mechanisms include POW mechanism and POS mechanism. Proof of work and proof of stake. Proof of work, who does more work, and proof of equity, who stakes more assets
Pow means that everyone calculates a difficult mathematical problem together, whoever calculates it Whoever comes out has the right to produce the block. Pos means that everyone takes out their family assets as mortgage, and whoever mortgages more. It is possible to be selected as a block producing node.
The essence of this approach is that you have to pay a certain price and receive a certificate of investment, which essentially builds a kind of trust.
When all these tasks are completed, a block can be produced, and the block will be connected to the previous block one by one. This is the entire block sequence. Note that the entire blockchain world will produce many blocks, connected to one chain after another, but everyone will only recognize the longest chain, and short chains will be discarded.
To put it simply, each network node uses a program to package transactions within a period of time, and then connects the transaction blocks one after another and saves them in each node, but an encryption algorithm will be used in the process. Ensure that node information is not leaked, ensure that user information is encrypted, and ensure that the information in the block is not cracked or tampered with
Second, the block The current development of the chain, various projects and significance, at this stage are more about currency speculation, and there is no problem with value storage.
Blockchain has been developing for twelve or three years since the Bitcoin white paper in 2008. It has also experienced various evolutions and developments.
For example, now it has gone from being able to issue currency in a distributed way to now having huge functional expansion. The landmark event is the birth of the Ethereum smart contract.
I have explained many times that a smart contract is an automated contract signed by two or three parties. It will be automatically executed as long as the conditions are met. It is essentially a program with infinite possibilities and the judge in the blockchain world. Various functions can be input into the program, and the program exists. Blockchain has become rich and colorful.
Current blockchain applications mainly include the following aspects:, smart contract class, payment class, cross-chain asset class, oracle class, defi class, web3 storage class, etc. I will briefly give two examples to talk about its commercial applications.
For example, defi applications are quite popular on Ethereum now. Defi is decentralized finance. Abbreviation for decentralized finance.
What does it probably mean? It is to move all financial-related businesses in real life, such as mortgages, insurances, and loans, onto the blockchain.
This field is very popular now, and the reason is simple. It is very suitable for blockchain. As I said, a smart contract on the blockchain is a contract. If the contract conditions are met, execution can be automatically triggered.
In the past, it might have been very troublesome for you to go to the bank to apply for a loan. You had to sign various signatures and verify them, and the bank might not be open on weekends and nights
But with blockchain The network operates 24 hours a day. If you want to run various assets on it and do various mortgage transactions, you only need to click and there is a software terminal.
Of course, the real assets will be frozen in the process and mapped to virtual assets. After the transaction is completed, they will be exchanged for real assets. Cross-chain technology and oracle technology may also be used in this process, which I have written in detail in other articles.
It roughly means cutting off banks through decentralization, and direct point-to-point transactions. The security of transactions is guaranteed by blockchain technology, code and cryptography.
There is also the current web3 storage class. For example, the leading project fil. His vision is to take out all the scattered hard drives. Break all the data and information that need to be stored on the network into small pieces
and then distribute them to the entire network. When we want to use network data in the future, we no longer need large network database or server. In this way, Internet giants cannot charge high service fees. There is no way to maintain a monopoly.
If you want to obtain stored information, just take a taxi online like dd. You pay for a taxi, so that information on the Internet can flow freely. Costs will drop significantly.
Of course, these visions are grand and huge, and the current blockchain development is still in its early stages. There are still some technical difficulties to be overcome and some underlying systems to be established, but there is no problem in this direction.
The original digital asset projects like Bitcoin have now been proven to be very safe. Just like this situation in Afghanistan, the first thing that comes to my mind is Bitcoin. He is the first violent and unplunderable asset.
Your house may be occupied and blown up, and your gold may be robbed. And if you have Bitcoin, it's much easier. He can't snatch this thing away, because the mnemonic phrase and private key are in your mind, and he doesn't even know it.I don’t know if you have this in your mind. If you want to pass it on to your child, just ask him to memorize the key and mnemonic phrase.
It is precisely because we are now in a stage of financing and bubbles that all the news you see on the Internet is still speculation.
Also, this thing is a back-end technology. For example, Guangdong Province already has blockchain invoices. For example, there are already some blockchain apps for judicial certification, but for the front-end For you, you can't feel it. There is an extra string of hash codes on the invoice, can you tell the difference?
This is why when it comes to blockchain now, everyone is speculating on coins, but in fact it has certain applications and future technical logic.
Third, it is essentially a mechanism of trust, a method of value transmission, and an exploration of social governance methods.
What is the essential value of blockchain? The most important thing is that it is a way of credit transfer. Because there is enough credit, real-life assets and property values can be spread on the Internet in the form of information codes.
Mainly in these aspects.
First, before Bitcoin, people did not know how to protect a piece of information, because information on the Internet can actually be copied. Bitcoin solves the problem of uniqueness of information assets. With scarcity, there is value in transactions and storage.
The second is decentralization and disintermediation. We used to do everything. All require some kind of intermediary. For example, when you borrow money, a bank acts as an intermediary, and when you buy a house, various institutions and real estate agencies act as intermediaries.
You cannot buy or sell directly. Because you don't have enough credit. We usually come to find a third party, but the third party is usually made up of people and may also do evil.
For example, the master who could whip five lightning whips a while ago. If he calls you all kinds of names at the beginning, you may be frightened. You won't know he is a liar until he is punched and lying straight there. This is human credit, which is unreliable
Blockchain ensures credit through code, cryptography, and consensus mechanisms. We no longer need a powerful third party. Note that this third party will often become a monopoly boss.
The third is to reduce the cost of coordination, communication and entry barriers.
If we want to become richer, we need to trade in the market. And transactions require coordination and division of labor. Essentially, the companies and organizations we work for are intermediaries.
You have to integrate your resources through this kind of intermediary, transform your labor force, your brain power, and your ingenuity into final products and sell them on the market.
The smart contract technology of blockchain technology can break up these contracts in a decentralized manner. People in the market can combine freely,Establish a new type of organization that is completely transparent and cannot tamper with the rules, that is, a blockchain autonomous organization. The future of this kind of organization may be more promising than that of ordinary joint-stock companies.
You can join or quit an organization at will, and the trust between you and others has been resolved. You can cooperate with others and sign smart contracts to complete joint collaboration and complete a certain product. We no longer have to worry about some big capitalist taking advantage of everyone and getting the bulk of the profits.
So the Bitcoin blockchain is essentially a big social experiment, through the consensus mechanism, the decentralized decision-making method, and the distributed signing of smart contracts. Gradually and completely change the original appearance of our society. Restore the original ideal of market economy, peer-to-peer, direct transactions between people.
To summarize. Blockchain is a block of information connected together through an encryption algorithm. It is essentially an accounting method and a network data structure
Through decentralization, you can do finance, storage, and decentralize many things, but now it is still very In the initial stage, most projects are still in the stage of speculation, financing and concept development.
The value storage capability of the blockchain has been proven to be problem-free, very safe, and cannot be plundered by violence.
The essence of blockchain solves the problem of credit intermediary, and at the same time can reduce the cost for people to work together, lower the threshold for enterprise entry, improve social efficiency, make social transactions larger, and allow We are richer.
I recommend the book linked below, it is easy to understand. Like You Pump tells the history of the birth of blockchain, the underlying technical logic of blockchain, and some mainstream projects. Learn some knowledge about blockchain, feel more at ease, and no longer worry about whether it is a scam.
F. Introduction to Blockchain What you need to know!
What is a blockchain?
Literally: a blockchain is a chain composed of small blocks that record various information, similar to what we will Bricks are stacked one after another, and they cannot be removed after being stacked. Each brick also has various information written on it, including: who stacked it, when it was stacked, what material the brick was made of, etc. You can use this information There is no way to modify it.
From a computer perspective: Blockchain is a relatively special distributed database. A distributed database stores data information on each computer separately, and the stored information is consistent. If one or two computers in Taiwan are broken, the information will not be lost, and you can still view it on other computers.
Blockchain is distributed, so it has no central point. Information is stored in all nodes that join the blockchain network, and the data of the nodes is synchronized. A node can be a server, laptop, mobile phoneMachine etc.
What you need to know is that the data stored in these nodes are exactly the same.
Blockchain Features
Decentralization: Because it is distributed storage, there is no central point. It can also be said that each node is a central point. Applications in life do not require a third-party system (bank , Alipay, real estate agencies, etc. are all third parties).
Openness: The system data of the blockchain is open and transparent, and everyone can participate. For example, when renting a house, you can know the previous rental information of the house and whether there have been any problems. Of course, some individuals here Private information is encrypted.
Autonomy: The blockchain adopts consensus-based specifications and protocols (such as a set of open and transparent algorithms), and then each node operates according to this specification, so that everything is done by machines, and there is no human touch. Element. This changes trust in people to trust in machines, and any human intervention has no effect.
Information cannot be tampered with: If the information is stored in the blockchain, it will be saved permanently and there is no way to change it. As for the 51% attack, it is basically impossible to achieve.
Anonymity: There is no personal information on the blockchain, because it is all encrypted and is a string of letters and numbers, so your ID card information and phone number will not be resold. Phenomenon.
Block structure
A block contains two parts:
1. Block header (Head): records the meta-information of the current block
2. Block body (Body): actual data
>Contains data as shown below:
How blockchain works
Let’s take transfer as an example:
Currently our transfers are centralized, and the bank is a centralized ledger. For example, there is 400 in account A There are 100 yuan in account B.
When A wants to transfer 100 yuan to B, A needs to submit a transfer application through the bank. After the bank verification is passed, 100 yuan will be deducted from A's account and 100 yuan will be added to B's account.
After calculation, the balance of account A after deducting 100 is 300 yuan, and the balance of account B after adding 100 is 200 yuan.
The steps for transferring money on the blockchain are: A wants to transfer 100 yuan to B. A will tell everyone about the transfer on the Internet, and everyone will check whether there is enough money in A's account. To complete the transfer, if the verification is passed, everyone will record this information in the blockchain on their computers, and the information recorded by everyone will be synchronized and consistent, so that A will successfully transfer 100 yuan to on B’s account. You can see that there is no bank involved.
Related questions
What is the relationship between blockchain and Bitcoin?
Bitcoin was proposed by Satoshi Nakamoto in 2009, and then the blockchain technology was refined with reference to the implementation of Bitcoin.
If Bitcoin is noodles, then blockchain is flour. Later, everyone discovered that flour can not onlyYou can also make steamed buns and steamed buns when making noodles.
Why do I need to help you store block information?
I don’t have time to do it without profit. To put it simply, you help me store information and I will give you corresponding rewards.
Key technical points that need to be understood in blockchain?
Use Hash and asymmetric encryption to ensure that data cannot be tampered with:
Hash: y = hash(x), perform a hash operation on x to obtain y , the original information x can be hidden, because you cannot calculate x through y, thus achieving anonymity.
Asymmetric encryption: The public key and the private key are a pair. If the public key is used to encrypt the data, only the corresponding private key can be used to decrypt it; if the private key is used to encrypt the data, then only It can be decrypted with the corresponding public key.
Consensus algorithm: Ensure data consistency between nodes.
Is there a sentence or two that can explain the blockchain?
Yes.
Mahjong is a traditional Chinese blockchain project. A group of four miners work together. The miner who first collides with the correct hash value of 13 numbers can obtain the accounting rights and be rewarded.
G. Which blockchain real estate company is good?
At present, the domestic blockchain is doing better, and only Lanfang Chain is doing better. It is a real estate blockchain solution provider. If you want to find out about this, you can go to the official website of Lanfang Chain and you will know that there is information in this regard on the Internet.
H. What are the classifications and applications of blockchain projects
From the current mainstream blockchain projects, blockchain projects mainly fall into four categories: Category 1: Coin type; second type: platform type; third type: application type; fourth type: asset tokenization.
Coins mainly serve as the "medium of exchange" in the field of blockchain assets. The medium of exchange refers to general equivalents, such as gold and silver notes in the past. (Trade blockchain assets on "Bihui Exchange")
Platform projects refer to the establishment of technology platforms to meet the development of various blockchain applications, which can reduce the cost of developing applications on the blockchain. threshold.
The scope of application projects is relatively wide, covering many fields such as finance, social networking, games, property rights protection, etc. It is also the fastest growing field of blockchain assets at present.
The asset tokenization project refers to the blockchain mapping of physical assets, that is, the physical assets are put on the chain. Currently, there are no more than 10 varieties.
01 Currency
The first category is currency projects, which are also the earliest blockchain projects. Currency projects mainly include projects such as Bitcoin and Litecoin. In addition, there is another type of asset that has the characteristics of anonymity. Its main functions include realizing payment while protecting the privacy of both parties. The well-known ones include Dash, Monero and Big Zero that use zero-knowledge proof. Coin (Zcash), etc. Currency mainly serves as the "medium of exchange" in the blockchain asset field. The medium of exchange is the general equivalent that you use to exchange for goods, such as gold and silver in the past., banknotes can be used as a medium of exchange. There are currently more than 2,100 types of digital assets in the world, and the number of currency blockchain projects has grown rapidly recently. As of June 2018, Bitcoin still has the largest market value.
02 Platform Category
The second category is platform blockchain projects. The main function of platform blockchain projects is to establish a technology platform to meet the needs of various blockchain application development. The required technical requirements; simply put, platform applications allow developers to directly issue digital assets on the blockchain, write smart contracts, etc. A smart contract is a computer program that runs on a blockchain database and can be automatically executed under conditions set by its source code.
For example, if you develop a smart contract based on a house rental agreement on the blockchain, when the owner receives the rent, it will trigger automatic execution and give the apartment's security key to the tenant.
The main function of platform blockchain projects is to establish an underlying technology platform to allow developers to develop applications on the underlying technology platform. A considerable number of platforms are still under development. As of June 2018 , the one with the largest market value is Ethereum.
03 Application Category
The third category is application blockchain projects. Application projects are developed based on blockchain development platforms (such as Ethereum) and can solve various problems in the real economy. Blockchain projects that address many issues in the field.
For example, the blockchain-based prediction platform Augur, the blockchain-based computing power trading platform Golem, the blockchain-based luxury traceability platform VeChain, and the blockchain-based asset exchange and transfer services OmiseGo. Using blockchain technology, these projects can better solve trust issues, cross-border circulation and other issues. At the same time, using smart contracts and tokens on the blockchain, automatic execution can be better realized, greatly improving the efficiency of social and economic activities. efficiency. The scope of applied blockchain projects is relatively wide, covering many fields such as finance, social networking, games, property rights protection, etc. It is also the field where the market value of blockchain projects is increasing the fastest.
04 Asset Tokenization
The fourth category is asset tokenization blockchain projects. Asset tokenization refers to linking blockchain assets to physical assets such as gold and U.S. dollars. , is a blockchain mapping of physical assets. As of February 2018, there are no more than 10 varieties. The more typical representatives are USDT, which is benchmarked against the US dollar, and Digix Dao, which is benchmarked against gold. Each DigixDAO token represents 1 gram of London gold. Silver Market Association certified gold. Asset tokenization has the advantages of convenient transactions and safekeeping. First, asset tokenization makes transactions easier. Because blockchain assets can be split, they have better liquidity.
For example, currently the real estate needs to be transferred as a whole. If the real estate can be tokenized, it can be purchased in pieces, making transactions more convenient. Secondly, tokenization of physical assets is more conducive to safekeeping. In physical transactions such as gold, it is easy to cause wear and tear and cause losses. However, after the tokenization of physical assets does not require physical transfer, it is more conducive to physical transactions.Custody of Assets.
I. What impact does blockchain technology have on current laws?
The impact of blockchain technology on current laws mainly includes the following points:
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1. Blockchain technology will impact the existing rules of property law. Article 2 of the current Property Rights Law stipulates that the property in this law includes movable property, immovable property and property rights stipulated by law. With the development of blockchain technology, information data, virtual property, digital currency or digital bills generated based on blockchain technology have challenged traditional property rights laws. It is difficult to determine their ownership under current property rights laws. Whether its ownership can be clarified in the future The ownership and implementation of transactions in the financial field are issues worth considering.
In addition, how to establish, change or eliminate the usufructuary rights and security rights of these virtual properties in the decentralized blockchain is also difficult to match the provisions of the current property rights law. In addition, if blockchain technology is used for property rights registration such as real estate, vehicles, ships, etc., it will also change the existing rules and methods of property rights registration. Future property rights laws need to sort out and clarify these issues.
2. Blockchain technology will reshape contract law. Smart contracts generated based on blockchain technology will change the rules of the current contract law. The way in which the intention of a smart contract is expressed will be greatly different from the way in which the parties to a contract enter into an expression of intention in the current contract law. Under what circumstances Issues such as consensus of intention and agreement need to be clarified in contract law. In addition, smart contracts can be automatically executed, or it can be said to replace human performance of contracts. Therefore, the relevant provisions of contract performance under the current contract law may no longer meet the needs of smart contracts, and the rules of contract law may need to be changed or even restructured. Plastic.
3. Blockchain technology may lead to changes in corporate law rules. The application of blockchain technology in company industrial and commercial registration will help simplify the company's industrial and commercial registration process and improve its reliability. The application of smart contracts will lead to the de-manualization of equity changes. The election of company shareholders and directors as well as the resolutions of shareholders' meetings and board of directors can also be written into the blockchain for reliable records. The company law needs to confirm the effectiveness of using blockchain technology for industrial and commercial registration and recording company resolutions.
4. The widespread application of blockchain technology in the financial field will lead to changes in financial laws and regulations such as securities law, currency law, foreign exchange management law, banking law, bill law, and insurance law. Some of them require fundamental changes. changes and system reconstruction, some need to be adjusted according to the specific application of blockchain technology.
J. Why blockchain is needed for second-hand housing transactions
With the rapid development of Internet technology, second-hand housing direct sales platforms have developed rapidly in recent years. Similar to "Lianjia Second-hand House Direct Sales Network" and "I Love My Home Without Intermediary Business", other representative second-hand house self-sale platforms aim to allow house buyers and house sellers to trade more directly, especially in the case of disputes arising from real estate intermediaries and transactions. have been solved to a certain extent. And whether the emergence of these direct sales platforms will allow futureWill second-hand housing transactions become de-intermediated?
Regarding this issue, we need to note that in the context of possible de-intermediation of second-hand housing transactions in the future, in addition to direct sales platforms, more reasons come from the development of blockchain technology. As blockchain technology becomes more mature, a new real estate platform called "Blockchain Real Estate Transaction Registration Platform" has begun to emerge, and its biggest feature is that it completely records housing transaction information on the blockchain. Let buyers and sellers have more security for each other.
From this perspective, the scenario in which second-hand housing transactions may be completely de-intermediated in the future is rather confusing. Because "complete deintermediation" does not mean "cancel the existence of brokers" or "cancel intermediary services", but means that house buyers and house sellers complete the house buying and selling process more directly through transactions on the blockchain platform. , and have more effective protection in terms of information.
But in any case, from the perspective of consumers, the impact of such deintermediation on consumers in the future will be extremely profound. On the one hand, based on blockchain registration, consumers can obtain a more convenient, secure and transparent housing transaction experience. For example, in house purchase and sale transactions, such a system will realize mutual supervision and use blockchain to eliminate unnecessary intervention by intermediaries. On the other hand, it will make consumers' housing transactions safer, and records of fraud that cannot be related to disintermediation will be completely recorded on the Bingzhi blockchain to protect consumers' legitimate rights and interests from infringement.
Taken together, the emergence of second-hand house direct sales platforms and the gradual maturity of blockchain technology will have a profound impact on second-hand house transactions in the future. Second-hand housing transactions may be de-intermediated in the future. In this context, consumers can obtain a more transparent, convenient and secure housing transaction experience, which will expand the development space of China's real estate market and help China's real estate industry become healthier and more stable. Development
