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A. How to define blockchain and what are its application scenarios

Many people now think that blockchain is a universal technology that can do anything. It’s a bit of a myth about blockchain technology!
Regarding the definition of blockchain technology, American scholar Melanie Swann defined blockchain technology as an open, transparent and decentralized technology in her book "Blockchain: A New Economic Blueprint and Introduction" database.

Definition of Blockchain: Narrow VS Broad

As for the application scenarios of blockchain technology, it is natural to combine the differences between blockchain and other technologies. In terms of system characteristics.

Blockchain technology features include:

Blockchain is a global A database storage system that can be operated collaboratively in various places is different from traditional database operations where read and write permissions are in the hands of a company or a centralized authority (a characteristic of centralization). Blockchain believes that anyone with the ability to set up a server can participate. Nuggets from all over the world have deployed their own servers locally and connected to the blockchain network to become a node in this distributed database storage system; once joined, the node enjoys exactly the same rights as all other nodes and obligations (decentralized, distributed characteristics).

At the same time, people who provide services on the blockchain can perform read and write operations on any node in the system. In the end, all nodes around the world will complete the process again and again according to a certain mechanism. Synchronize in sequence to achieve complete consistency of data in all nodes in the blockchain network.

At the beginning of this year, the term blockchain began to enter everyone’s lives. From national leaders to aunts who dance square dances, everyone knows this term. This term is widely known by Bit Brought by coins.

As we all know, the first few dozen bitcoins could only be exchanged for one pizza. At its peak, it was more than 20,000 US dollars each, which has skyrocketed by more than a thousand times, which has also benefited a large number of wealthy people. Currently, there are blockchain The virtual currency generated by technology is gradually entering into everyone's life, and many people have joined the ranks of currency speculation. I often hear people say that if you buy the right currency a hundred times, a bicycle will become a sports car, and one coin will turn a young model. You can imagine how many of them are involved. Attractive.

Since 2008, various games applying blockchain technology have also become popular, such as development games (Network Letts Dog, 360 Block Cat), mining games (NetEase Planet, Virtual Earth, Gongxinbao), these are attracting everyone to join in the name of blockchain, and of course there are some that are really reliable, which requires everyone to identify them carefully.

Blockchain is a system that connects data blocks in an orderly manner and cryptographically ensures that they cannot be tampered with.Distributed ledger (database) technology that cannot be changed or forged. In layman's terms, blockchain technology can achieve openness, transparency, non-tampering, non-forgery, and traceability of all data information in the system without the need for third-party endorsement. As an underlying protocol or technical solution, blockchain can effectively solve the problem of trust and realize the free transfer of value. It has broad prospects in the fields of digital currency, financial asset transaction settlement, digital government affairs, and certificate deposit and anti-counterfeiting data services.

Digital currency

After experiencing physical objects, precious metals, banknotes and other forms, digital currency has become the development direction of the digital economy era. Compared with physical currency, digital currency has the characteristics of easy portability and storage, low circulation cost, convenient use, easy anti-counterfeiting and management, breaking geographical restrictions, and better integration.

Bitcoin technically implements an electronic cash system in which both parties to the transaction can directly transfer funds to each other without the need for third-party transfer or arbitration. In June 2019, the Internet giant Facebook also released a white paper on its cryptocurrency Libra. Whether it is Bitcoin or Libra, the underlying technology they rely on is blockchain technology.

my country began the development of central bank digital currency as early as 2014. my country's digital currency DC/EP adopts a two-tier operating system: the central bank does not directly issue digital currency to the public. Instead, the central bank redeems the digital currency to various commercial banks or other legal operating institutions, and then these institutions exchange it for public supply. its use. In early August 2019, the central bank held a video conference on work for the second half of the year. The meeting called for accelerating the pace of research and development of the national legal digital currency.

Financial asset transaction settlement

Blockchain technology naturally has financial attributes, and it is causing disruptive changes in the financial industry. In terms of payment and settlement, under the blockchain distributed ledger system, multiple market participants jointly maintain and synchronize a "general ledger" in real time. Payment, clearing, and settlement that currently take two or three days can be completed in just a few minutes. tasks, reducing the complexity and cost of cross-bank and cross-border transactions. At the same time, the underlying encryption technology of the blockchain ensures that participants cannot tamper with the ledger, ensuring that transaction records are transparent and safe. Regulators can easily track transactions on the chain and quickly locate high-risk capital flows. In terms of securities issuance transactions, traditional stock issuance has long procedures, high costs, and complex links. Blockchain technology can weaken the role of underwriting institutions and help all parties establish fast and accurate information exchange and sharing channels. Issuers handle issuance on their own through smart contracts, and regulatory authorities With unified review and verification, investors can also bypass intermediaries and conduct direct operations. In terms of digital bills and supply chain finance, blockchain technology can effectively solve the financing difficulties of small and medium-sized enterprises. It is difficult for current supply chain finance to benefit small and medium-sized enterprises in the upper reaches of the industrial chain, because they often do not have direct trade relations with core enterprises, and it is difficult for financial institutions to evaluate their credit qualifications. Based on blockchain technology, we can establish a consortium chain network covering core enterprises, upstream and downstream suppliers, financial institutions, etc., core enterprises issue accounts receivable vouchers to their suppliers. The bills can be transferred between suppliers after being digitized on the chain. Each level of supplier can use the digital bill certificate to realize the corresponding amount. Financing.

Digital Government Affairs

Blockchain can make data run and greatly streamline the service process. The distributed technology of blockchain can allow government departments to be centralized on one chain, and all service processes are delivered to smart contracts. As long as the service personnel pass the identity authentication and electronic signature in one department, the smart contracts can be automatically processed and transferred, and the subsequent steps can be completed in sequence. All approvals and signatures. Blockchain invoice is the earliest application of domestic blockchain technology. The tax department launched the "Tax Chain" platform for blockchain electronic invoices. The tax department, the issuer, and the payee join the "Tax Chain" network through unique digital identities, truly realizing "instant invoicing for transactions" and "instant reimbursement after invoicing" - in seconds Level invoicing and minute-level reimbursement accounting significantly reduce tax collection and management costs, and effectively solve problems such as data tampering, over-reporting of one ticket, and tax evasion. Poverty alleviation is another practical application of blockchain technology. Utilize the characteristics of openness, transparency, traceability, and non-tampering of blockchain technology to achieve transparent use, precise investment, and efficient management of poverty alleviation funds.

Evidence-based anti-counterfeiting

Blockchain can prove the existence of a file or digital content at a specific time through hash timestamps, and it is open, non-tamperable, and traceable. It provides perfect solutions for judicial forensics, identity certification, property rights protection, anti-counterfeiting and traceability, etc. In the field of intellectual property, the digital signature of blockchain technology and on-chain certificates can confirm the rights of text, pictures, audio and video, etc., and create and execute transactions through smart contracts, allowing creators to regain pricing power and preserve data formation in real time. The evidence chain covers the three major scenarios of rights confirmation, transaction and rights protection. In the field of anti-counterfeiting and traceability, blockchain technology can be widely used in various fields such as food and medicine, agricultural products, alcohol, and luxury goods through supply chain tracking.

Data services

Blockchain technology will greatly optimize existing big data applications and play a huge role in data circulation and sharing. In the future, the Internet, artificial intelligence, and the Internet of Things will generate massive amounts of data. The existing centralized data storage (computing model) will face huge challenges. Edge storage (computing) based on blockchain technology is expected to become a future solution. Furthermore, the non-tampering and traceability mechanism of blockchain ensures the authenticity and high quality of data, which becomes the basis for all data applications such as big data, deep learning, and artificial intelligence. Finally, blockchain can realize multi-party collaborative data calculations while protecting data privacy, and is expected to solve the problems of "data monopoly" and "data islands" and realize the value of data circulation. In response to the current blockchain development stage, in order to meet the blockchain development and application needs of general business users, many traditional cloud service providers have begun to deploy their own BaaS ("Blockchain as a Service") solutions. The combination of blockchain and cloud computing will haveEffectively reduce enterprise blockchain deployment costs and promote the implementation of blockchain application scenarios. In the future, blockchain technology will also play an important role in many fields such as charity, insurance, energy, logistics, and the Internet of Things.

The three words "blockchain" were completely ignited during the Spring Festival that just passed. The limelight overshadowed everything. Some people said that this was the arrival of a new era. The past It has become a classic, and some people say that it is all hype and is ultimately a bubble.

In fact, blockchain technology is not a new concept. It has been applied to many industries, such as electronic signatures, as early as the past two years. Recently, the third-party electronic signature platform eShanbao revealed the latest progress of blockchain applications to NewSeed.

Currently, blockchain technology is mainly used in e-signing products for certificate deposit and certificate issuance. The application scenarios include copyright protection and online signing. , web page forensics, phone recording, email storage of evidence, etc.

Take the rights protection of online works as an example. Since online rights protection generally adopts the method of collecting evidence after the fact, real-time confirmation of rights is not carried out in the process of evidence generation, so the entire confirmation process is difficult. The copyright process is time-consuming, difficult and costly to obtain evidence, and extremely difficult to prove and trace the source. It cannot meet the characteristics of rapid dissemination and large quantity of online works.

eShanbao's new intellectual property protection solution based on timestamp + blockchain starts from the user's real-name authentication and solidifies the information generated in the process in real time. Electronic data, and through the time source service synchronized with the National Time Service Center, online works are stamped with legally valid timestamps to prove that electronic files have not been tampered with in a certain period of time. Blockchain technology can establish point-to-point trust in the network, ensuring that all blockchain nodes can record complete copyright confirmation and transaction records, and can trace their origins, truly realizing anti-repudiation and anti-tampering, and realizing a kind of distribution. trust infrastructure.

Founder and CEO Jin Hongzhou believes that the application of decentralized blockchain technology has greatly improved the efficiency of data storage and certification, and The credibility of the identity of the parties reduces the cost of trust, but it cannot replace the original centralized public key encryption technology. The two should complement each other. Through the combination of the two, it can provide users with real-time and reliable Confirmation plan.

Next, e-Shanbao will also focus on building a smart contract platform based on blockchain technology. Jin Hongzhou said that data storage, Issuing certificates is only a relatively superficial application based on blockchain technology. It is the first step to implement blockchain technology, and the realization of real smart contracts is the second step. “Smart contracts cannot simply be understood as electricitySub-contract refers to a process, from the conclusion of the contract to the confirmation to the final execution. "Jin Hongzhou explained.

From a technical perspective, blockchain is not a brand-new technology, but an integration of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm, smart contract and other computer technologies. New application model. Specifically, blockchain technology is a technical solution that collectively maintains a reliable database in a decentralized, high-trust manner.

Due to the characteristics of "decentralization" and "distribution" With advantages such as "automatic data storage", "traceability", "tamper resistance", and "openness and transparency", blockchain technology can effectively solve the problems of data authenticity, security and openness in the data field. A data management environment to prevent and avoid various data management problems such as data fraud, tampering, and loss, and promote efficient sharing and application of data. In the process of practical exploration, the application scope of blockchain technology continues to expand, especially in the field of public resource transactions. Empower public resource transaction management services.

Promote transaction data sharing and transaction witness

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Promote transaction data sharing

Currently, the data of different trading centers are not interoperable, and the subject information of different trading centers needs to be entered repeatedly. During the bid evaluation process, it is difficult to verify the off-site performance provided by the bidders, and the same personnel are duplicated. Problems such as difficulty in troubleshooting as a project manager and low cost of breach of trust by transaction entities. Establishing a cross-regional entity database based on blockchain can well alleviate the above problems.

The distributed ledger features based on blockchain can Effectively guaranteeing the real-time or quasi-real-time sharing of data, it can reduce repeated entry operations of subject information; the use of blockchain information that cannot be tampered with can ensure the authenticity of the data flow process on the chain. The performance of bidders in the regional alliance is directly taken from the data on the chain. This makes it impossible to hide false performance. At the same time, the sharing of bidding behavior data through the blockchain provides a data basis for the development of "joint punishment of dishonest enterprises".

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Blockchain-based transaction witness

The document "Guiding Opinions on Deepening the Integration and Sharing of Public Resource Trading Platforms" (State Office Letter [2019] No. 41) points out the need to optimize witness, venue, Information, archives, expert extraction and other services. However, at present, public resource transaction process witnessing is mainly based on manual on-site witnessing, which has limited witnessing strength, high occupation of human resources, and limited witnessing effect. Due to its centralized characteristics, the traditional digital witnessing system is easy to collect data afterwards Be tampered with, and the data is easily damaged or lost during the storage and migration process, which has certain flaws in terms of security and usability.

Utilize the distributed, difficult to tamper, and traceable characteristics of the blockchain to verify each transaction The data generated in the link are solidified and stored as evidence, and are processed through timestamp technology and summary calculation.Law, electronic signature technology accurately records the time, content and data source of data generation. According to the technical characteristics of the blockchain, simple structured data can be directly saved on the blockchain. For unstructured layout files, videos, audio and other large files, the summary information and original files can be saved through the blockchain. Save via a distributed file storage service. When there are disputes or problems in a transaction, the blockchain can provide a set of credible transaction process data and clarify the responsibilities of all parties involved in the transaction. Achieve the goals of risk prevention and control in all aspects, traceability of the entire process, and improvement of all-round services.

Promote the rationalization of electronic guarantee rates

Promote financial services and corporate financing for bidding companies

Promote the rationalization of electronic guarantee rates

At present, electronic bidding deposit guarantee letters have certain applications in the field of bidding, solving the problem of bidding deposit funds for bidding companies. Occupancy issues. However, because financial institutions currently do not have reliable historical bidding behavior data of bidders, they are unable to judge the default risks of different bidders. As a result, the guarantee services charged to bidders adopt fixed rates, which makes a small number of bids with high default risks The cost of personal guarantee is allocated to most bidders with low default risk, which increases the guarantee rates for most bidders to a certain extent.

At present, it is up to the bidder to choose whether to use an electronic letter of guarantee, and the rate is the main choice basis for the bidder. If the bidder performance records are shared through the blockchain and the performance risks of different bidders are analyzed, it will be Different bidders provide different guarantee rates, which not only reduces the risks of financial institutions, but also reduces the use costs of most bidders and promotes the use of bid guarantees. To a certain extent, it can also encourage bidders to abide by their promises and maintain the order of the bidding market. .

Promote financial services for bidding companies

The bidding behavior of bidders is scattered in various trading centers, and the data is simply aggregated In a centralized information system, there is a risk of data tampering (untrustworthy), and valuable bidder transaction behavior data cannot be gathered and shared safely and reliably. Through blockchain technology, bidders from multiple trading centers are gathered, and historical bidding, winning bids, defaults, violations and other behavioral records provide data support for financial institutions to evaluate the bidders' credit in the bidding sub-sector.

Solving the financing problems of successful bidders

Traditional corporate loans mainly evaluate the company's solvency: collateral, audit There are requirements for accurate financial statements and sustainable profitability, but most small and medium-sized enterprises cannot produce these "proofs" at all. Difficulty and expensive financing have become a problem for many small and medium-sized enterprises in bidding activities.facing problems. Using the methods of the past will no longer work. To solve the financing difficulties of small and medium-sized enterprises, we can only rely on new technologies and new tools. With the help of the non-tamperable characteristics of blockchain, primary business data from multiple trading centers are gathered, and big data analysis technology is combined to build a portrait of a credible bidder. On the one hand, it improves the risk control level of financial institutions and taps high-quality bidding companies. On the other hand, it lowers the loan threshold for bidding companies and optimizes the service experience.

Drawing on the supply chain finance model, the bidder is a core enterprise with good credit in government departments, national enterprises and institutions, and the winning contract obtained by the winning bidder as a supplier is considered by financial institutions to be a high-quality asset. Apply for a loan from a financial institution. Under the traditional paper-based model, there is a risk of order and contract fraud and the process is cumbersome. Centralized information systems require operators to have strong authority. The distributed ledger and difficult-to-tamper characteristics of the blockchain will help solve the above problems. The contract signing between the tenderer and the bidder and the subsequent financial service links will be realized on the blockchain, which not only solves the problem of data trustworthiness but also reduces the risk of corruption. The entire system relies on a centralized authority.

Through further analysis, we found that credit sales are currently prevalent among domestic enterprises, and the upstream suppliers of the winning bidder have a large funding gap. The credit of the bidder can only be passed to the winning bidder (the winning contract cannot be split or transferred), and the upstream suppliers Business owners are unable to obtain high-quality loans from financial institutions. If the winning contract is converted into a "pass" on the chain, the "pass" can be split, and the winning bidder holding the "pass" can pay part or all of the voucher to the upstream supplier, making it discountable and financing. The "tokens" on the chain can be split and transferred from first-level suppliers to second-level (and multi-level) suppliers, thereby allowing core enterprise credit to be transferred to multi-level suppliers. The shortage of funds from suppliers due to credit sales has been solved, improving the business environment; through value transfer through the blockchain, the financing cycle has been greatly shortened; the cost of supplier loans has been reduced, which will help reduce the production costs of raw materials or intermediate products, and ultimately Increase bidders' profit margins and indirectly reduce bidders' costs.

Regarding blockchain, we can imagine a decentralized management model and technical processing method.

Let me give you an example. There are five people in your family, and they have never been able to figure out how to arrange work and handle family relationships.

So, you and your family discuss it together and simply use voting to solve the problem.

Then this way of voting to solve problems can be called the most elementary blockchain.

Decentralization solves problems.

What application scenarios can blockchain have?

In fact, many of our families and many organizations use blockchain management forms every day

However, this kind of blockchain application for organizational relationships cannot produce Economic Value.

Blockchain can have economic benefitsWhat applications?

The first type is used for tax deposit certificates, bank transfers, etc.

Make full use of the traceability function of the blockchain so that all records can be retrieved and queried at any time

The second type is applied to enterprise operation and management

Enterprises using blockchain management can better solve the problems of enterprise development and allow enterprises to Able to develop faster and make more money.

Summary: The application scenarios of blockchain include taxation, bank transfers, etc., and can also be applied to business operations.

The characteristics of blockchain are distributed accounting and decentralization, but the ultimate goal is to make people get along more equally. Technology is meaningful only when it serves human values, and technology that meets human value needs will develop. Therefore, blockchain is in line with human pursuit of freedom and equality, so its trend to become mainstream is unstoppable.

Currently, there are many blockchain gimmicks, which are basically used to issue coins. The newly launched ono is a decentralized, free and global social platform. Due to decentralization, your chat communication information is peer-to-peer and cannot be viewed by others. In other words, your every word and deed will no longer be recorded and reviewed at any time like it is now on WeChat, QQ, and Facebook, freeing you from the trouble of surveillance.

In fact, blockchain technology can be used in any field. Information that previously required third-party confirmation can be completed online and confirmed at multiple nodes, making it difficult (almost impossible) to delete.

At present, blockchain is still in its infancy, and the technology is not mature enough, but it is also a better time to enter.

Blockchain is a decentralized technology. Blockchain can be applied to all products currently covered by the Internet.

The most popular application industry at present is the financial industry.

An application that has been implemented is product traceability. Alibaba and JD.com are already using blockchain technology to fully trace the origin of some of the products they sell. Consumers can trace the origin of the purchased products. There are also many blockchain applications in the digital advertising industry. Since traffic fraud in digital advertising causes losses of tens of billions of dollars every year, there are already blockchain application projects based on digital advertising, such as DCAD, which is based on blockchain. The digital advertising application of blockchain technology mainly solves the problem of traffic fraud

In the future, as the application of blockchain technology becomes more mature, it will be applied in many industries, creating a new ecosystem based on technological trust. Mode

What is blockchain

If you explain blockchain in non-technical terms, blockchain is a place where data is stored. However, the data stored in the blockchain is safe and reliable and does not need to be managed by anyone. So in the Internet, a place where data and information explode, how can there be such a thing?This place will be like a magical treasure land.

What can the blockchain do?

If you ask what the blockchain can do, it is better to say what applications require the use of the blockchain. As mentioned earlier, blockchain is a safe place, so wherever data needs to be protected securely on the Internet, blockchain technology needs to be used. For example:

Because the use of blockchain technology can better protect the data of policyholders, in today’s Internet, data is value and wealth, so value protection and value transmission are the future development directions of the Internet. And blockchain technology can really do just that.

If there are any deficiencies, you are welcome to comment and correct me.

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

The two parties involved in the transaction do not need to know who the other party is, nor do they need a third party for trust endorsement. They only need to trust a common algorithm to establish mutual trust and conduct direct transactions.

Its characteristics are trustlessness and decentralization. The destruction of each node's ledger has no impact on the entire blockchain. The blockchain runs point-to-point payments without a center that may cheat, and the security is greatly improved. Improved, the entire transaction network has changed from a star structure to a point-to-point P2P structure.

In the future, blockchain will be used in many fields and will have a great impact on human life. . It can be widely used in fields ranging from digital currency to securities and financial contracts, medical care, games, artificial intelligence, smart contracts, Internet of Things, e-commerce, file storage and other fields.

1. Cloud storage

This is the statistics of current cloud storage on the Internet. In terms of volume, Google has the largest volume, which is 8,000PB. So what if we share the idle data on the Internet?

Starlight Cloud builds a blockchain data computing and storage lake through Starlight Chain, with a total storage capacity of 15,000P (approximately 15.72864 billion G) in the future. This will be more than 10 times that of Alibaba Cloud's 1500PB! It is also more than four times the size of the Taizhou Storage Center, the largest storage lake in the world after expansion.

2. Medical aspects

Using blockchain technology to save personal medical records also retains personal medical historical data, which can be used when seeing a doctor or planning for your own health in the future. Historical data can be called directly. These data are highly private, and the use of blockchain technology also helps protect patient privacy.

B. What are the applications of blockchain that have been implemented?

As far as I know, blockchain has been implemented in social banking, environmental protection technologytechnology in these industries. Take social banking.

GSN Social Bank - the establishment of decentralized credit
Theoretically speaking, the credit establishment mechanism of blockchain is likely to be more cost-effective than centralized credit in terms of global costs. The establishment cost is even lower, which is in line with the trend of global market evolution!

The significance of GSN social banking is to establish a distributed, point-to-point, open and transparent trust system with technical guarantee. As a global distributed database, GSN stores data blocks generated using cryptographic methods. Each data block contains information about each network transaction and is used to verify the validity and authenticity of the information.

GSN delivers value through technical architecture, making every recorded transaction absolutely credible and cannot be tampered with. From this point of view, the subversive significance of GSN lies in the establishment of a decentralized, open and transparent trust system guaranteed by technology. GSN no longer relies on a central node, but automatically realizes trust and delivers value through the technical architecture. This is the advantage of GSN.

Four major advantages of the GSN social banking user credit system
1. GSN reduces the cost of credit reporting, allowing unlimited use and sharing of trust data. GSN can greatly reduce the false problems of massive data, making data collection, processing and use more convenient.

2. GSN expands the coverage of credit assessment, expands the scale of the community, and uses distributed technology to collect data information on user groups that cannot be taken into account through surveys and other methods under the traditional model. At the same time, GSN can conduct credit assessments for special groups, that is, those who do not have registered bank accounts but have access to the Internet, which can well expand the scope of credit product services.

3. GSN reduces the cost of credit product management, allowing credit evaluation, pricing, contracts, etc. to be automatically executed and managed without additional manual participation, thus greatly reducing the cost of credit product management. , and at the same time, it can also significantly increase the bank's credit business processing scale.

4. GSN improves the ability of credit to create value. Through the trust mechanism on the chain, the entire process of credit products can be equipped with dynamic programming capabilities, which effectively expands the ability of credit products to create value. space.
Distributed peer-to-peer technology will redefine the financial ecosystem

The business model of GSN Social Bank can flatten the existing business model, so the role of "middleman" is no longer needed.
GSN’s peer-to-peer technology allows users to verify and execute transactions without the need for intermediary organizations. This has a disruptive impact on the financial business, and many roles in the financial ecosystem will also be redefined. definition.

C. BlockchainWhat fields can it be applied to?

According to incomplete statistics from Capital Lab, there will be a total of 1,290 global blockchain application cases in 2021. The number of cases is basically the same as the 1,304 cases in 2020. These cases cover three major application types: financial applications, government applications and industry applications. Among them, financial applications accounted for 25% and government applications accounted for 12%; except for the financial industry, applications in other industries accounted for 63%. Blockchain technology is accelerating its expansion into the industrial application market.
Take the blockchain unicorn company Qulian Technology as an example. Qulian Technology’s products are widely used in key fields such as finance, people’s livelihood, government affairs, justice, energy, manufacturing and other key fields. With 180+ typical applications, it is the industry leader. The blockchain enterprise with the richest implementation scenarios. In the financial field, Qulian Technology has implemented cases such as accounts receivable, asset securitization, credit insurance, digital warehouse receipts, and comprehensive foreign trade services; in the government affairs field, Qulian Technology has deeply explored the field of government affairs and provided smart government and digital services for government affairs. Identity, electronic certificates, provident fund interconnection, trusted data storage and other infrastructure; in the field of people's livelihood, Qulian Technology uses the characteristics of blockchain technology to build platforms for house rental, pension custody, vaccine traceability, lottery notarization, charity traceability and other platforms; In the judicial field, Qulian Technology empowers the judiciary with blockchain technology, providing solutions such as electronic evidence platforms, blockchain electronic contracts, and prison scoring assessment platforms; in the energy field, Qulian Technology uses blockchain technology to fit the energy needs In response to the value transfer needs of the Internet, platforms such as distributed power trading and new energy charging piles have been developed.
Currently, Qulian Technology has established a number of joint ventures with well-known enterprises such as Haier Group, China Enterprise Cloud Chain, and Shulan Group to deploy blockchain + finance, Internet of Things, medical care, justice, smart government affairs, and smart In the fields of cities, life services and other fields, we actively build industry ecology and help the digital transformation of society.

D. Definition of blockchain

Blockchain is a series of verified blocks, each of which is connected to the previous block until Genesis block.

1. Blockchain (BlockChain)

Blockchain is a series of verified blocks, each of which is connected to the previous block. to the genesis block. Blockchain is the underlying technology of digital currencies such as Bitcoin. It is a decentralized distributed shared ledger. Blockchain, artificial intelligence, and big data are known as the three major directions of financial technology. Ma Chajue

In 2009, he built an open source project for the Bitcoin system and officially announced the birth of Bitcoin. But when Bitcoin gradually became popular, Satoshi Nakamoto quietly left and disappeared from the Internet.

E. What are the practical applications of blockchain technology

Answer: The practical applications of blockchain technology

1. Financial field

Blockchain has potential huge application value in financial fields such as international exchange, letters of credit, equity registration and stock exchanges.value.

The application of blockchain technology in the financial industry can eliminate the need for third-party intermediaries and achieve direct point-to-point connection, thereby greatly reducing costs and quickly completing transaction payments.

2. Internet of Things and Logistics Fields

Blockchain can also be naturally combined in the Internet of Things and logistics fields. Through blockchain, logistics costs can be reduced, the production and delivery process of items can be traced, and the efficiency of supply chain management can be improved. This field is considered a promising application direction of blockchain.

3. Public service fields

Blockchain is closely related to people’s production and life in public management, energy, transportation and other fields, but the centralized nature of these fields also brings Some problems can be solved using blockchain.

4. Digital copyright field

Through blockchain technology, works can be authenticated, prove the existence of text, video, audio and other works, and ensure the authenticity and uniqueness of ownership. sex.

5. Insurance field

In terms of insurance claims, insurance institutions are responsible for fund collection, investment, and claims settlement, and often have high management and operating costs.

6. Public welfare fields

The data stored on the blockchain is highly reliable and cannot be tampered with, so it is naturally suitable for use in social welfare scenarios.

F. What are the current applications of blockchain?

Financial applications, government applications, banking applications, cross-border payment applications, asset securities chemical applications, supply chain applications.

G. What is the first blockchain application to be implemented

As a virtual asset, games naturally enjoy a linking process that is lighter than physical objects. Various games that directly point to people's hearts make the blockchain Chain games overcome the immaturity of basic technology and first arouse enthusiasm among investors. So, what are the first blockchain applications to be implemented?

Blockchain games mainly refer to applications belonging to the game-type blockchain in Dapp, which require a certain degree of interaction with the public chains of various blockchains. Blockchain games began to rise in November 2017. The development history is extremely short, and compared with mature games, the current gameplay is also quite simple. In the eyes of industry insiders, many games are even just a fund tray wrapped in a game jacket.

According to the classification of Cryptogames, currently Among online blockchain games, hotpotato, collection trading, spinach and ponzi are the main game methods. The most common are hotato games, and the two most popular games recently are both of this type. There are 35 types of collection trading, ranking first The second place is mainly represented by CryptoKitties. There are 17 types of spinach and ponzi, ranking third. The star products are EtherRoll and Etheremon respectively.

The themes used in blockchain games are also diverse. From cats, dogs, dragons, pigs and other animals to people, cars, countries, teams and other themes.

In traditionalIn desktop online games, manufacturers continue to incentivize new players, leading to inflation. The actual value of all assets in a game is often far lower than the player's investment. After the emergence of mobile games, props are bound to accounts, and accounts are bound to ID cards. The model quickly became popular. This also makes players have to give up all virtual assets in the game once they decide to leave a game. The emergence and maturity of blockchain technology will enable the centralized formulation of game rules and the loss of virtual assets. Centralized storage has become technically feasible. The convenience of the virtual asset chain also makes it easier for Kongxun Blockchain to land in game scenarios.

H. What are the practical applications of blockchain

Essentially, blockchain is a distributed database system that applies cryptography technology, is participated by multiple parties, jointly maintained, and continues to grow. It is also called a distributed shared ledger. Its anonymity, decentralization, openness, transparency, and non-tamperability make blockchain technology very popular among enterprises.
What are the practical applications of blockchain?
1. Medical treatment
In the medical field, data sharing between hospitals and hospitals means more accurate diagnosis and more effective treatment, and can also promote the development of the medical system. overall service capabilities. However, the sharing of data also means that the privacy of doctors and patients is exposed. Blockchain technology allows hospitals, patients and all parties in the medical benefit chain to share data in the blockchain network without worrying about the security and integrity of the data. sex.
2. Logistics
At present, the most criticized problems in logistics are missing parts and damaged express items. Blockchain technology can record all links in the process of goods from sending to receiving, and through network consensus , directly locate the problems in the intermediate links of express delivery, ensure the traceability of information, and avoid problems such as express delivery warehouse explosion, package loss, wrong delivery, etc.
3. Big Data
Big data is an indispensable part of the development of modern enterprises, and the security and non-tamperability of blockchain can allow more data to be liberated safely . Trusted blockchain data based on the consensus of the entire network is micro-V-BQ Er Wu Ba Scar Y, which cannot be tampered with and is safe. It also enables the quality of the data to gain unprecedented strong trust endorsement and also enables the development of the database. Entering a new era.
4. Distributed business platform
Combined with the decentralization and distributed ledger advantages of blockchain technology, there are many worthy integration points between this technology and the business platform field. If it can be Blockchain technology is the core supporting technology. In the field of commodity trading, we research and develop transaction models and trading systems based on blockchain technology and conduct direct transactions. In this way, producers can obtain greater benefits and consumers can obtain lower benefits. The product cost is the best of both worlds.

I. What are the practical applications of blockchain technology over the years?

The blockchain financial field is the most widely used

The main applications of my country’s blockchain industry Distributed in finance, supply chain, traceability and hardware, accounting for nearly 65%. According to "BlockchainAccording to the "Blue Book: China Blockchain Development Report (2019)", there are nearly 28,000 blockchain companies in the country. Among them, about 1,000 blockchain companies have been put into production, accounting for only 3.6%. They are mainly concentrated in developed eastern regions such as Beijing, Shanghai, Guangdong, and Zhejiang.

——For more data and analysis, please refer to the "Forward-looking Industry Research Institute" China Blockchain Industry Market Prospects and Investment Strategic Planning Analysis Report".