区块链技术保护病人隐私吗,区块链技术保护病人隐私的措施

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A. Blockchain applications include

Blockchain applications include:

(1) Blockchain + Medical: In the medical field, blockchain can use its anonymity, decentralization and other characteristics to protect patient privacy. Electronic health records (EHR), DNA wallets, drug anti-counterfeiting, etc. are all possible application areas of blockchain technology. IBM predicted in last year's report that 56% of medical institutions around the world will invest in blockchain technology by 2020.

(2) Blockchain + Internet of Things: The Internet of Things is a very broad concept. If communications, energy management, supply chain management, sharing economy, etc. are included, the IoT of blockchain technology Networked applications will become a very important application field.

(3) Blockchain + IP Copyright & Culture and Entertainment: The Internet is developing better and better, and digital music, digital books, digital videos, digital games, etc. have gradually become mainstream . The rise of the knowledge economy has made intellectual property rights a core element of market competition. However, intellectual property infringement is serious in the current Internet ecosystem, and the copyright protection of digital assets has become a pain point in the industry.

Blockchain has the characteristics of disintermediation, consensus mechanism, and non-tampering. Using blockchain technology, it can effectively integrate all aspects of the cultural and entertainment value chain, accelerate circulation, and shorten the value creation cycle; at the same time , can realize the value transfer of digital content, ensure the credibility, auditability and transparency of the transfer process, and effectively prevent piracy and other behaviors.

(4) Blockchain + Public Services & Education: In the fields of public services, education, charity and public welfare, issues such as file management, identity (qualification) certification, and public trust all exist objectively. Traditional The method is to rely on a credible third party for credit endorsement, but problems such as fraud and deficiencies still exist. Blockchain technology can ensure the integrity, permanence and unchangeability of all data, and thus can effectively solve the difficulties and pain points in these industries in terms of certificate storage, tracking, association, and backtracking.

B. How blockchain technology protects the privacy and rights of information subjects

Privacy protection methods can be divided into three categories:
First, the privacy protection of transaction information; Privacy protection for senders, transaction recipients and transaction amounts, including currency mixing, ring signatures and confidential transactions.
The second is privacy protection for smart contracts, and protection solutions for contract data, including zero-knowledge proof, multi-party secure calculation, homomorphic encryption, etc.
The third is the privacy protection of data on the chain, which mainly includes solutions such as ledger isolation, private data and data encryption authorized access.
Extended information:
1. Blockchain encryption algorithm isolates identity information and transaction data
1. Transaction data on the blockchain, including transaction address, amount, transaction time, etc., are open, transparent and queryable . However, the identity of the user corresponding to the transaction address is anonymous. Through the blockchain encryption algorithm, the separation of user identity and user transaction data is achieved. In data protectionBefore storing it on the blockchain, the user's identity information can be hashed, and the resulting hash value is used as the user's unique identifier. The user's hash value is stored on the chain instead of the real identity data information, and the user's transaction data Bundled with hash values ​​rather than user identity information.
2. Therefore, the data generated by users is real. When using these data for research and analysis, due to the irreversibility of the blockchain, no one can restore the name, phone number, and email address of registered users through hash values. and other private data, playing a role in protecting privacy.
2. Blockchain "Encrypted Storage + Distributed Storage"
Encrypted storage means that a private key must be provided to access data. Compared with ordinary passwords, private keys are more secure and almost impossible to be cracked by violence. . Distributed storage and decentralized features reduce the risk of all data being leaked to a certain extent. However, with centralized database storage, once the database is attacked by hackers, all data can easily be stolen. Through "encrypted storage + distributed storage", users' data privacy can be better protected.
3. Blockchain consensus mechanism prevents individual risks
The consensus mechanism is a mechanism for blockchain nodes to reach a consensus on block information across the entire network, which can ensure that the latest blocks are accurately added to the blockchain and node storage The blockchain information is consistent and unforked, which can resist malicious attacks. One of the values ​​of the blockchain lies in the consensus governance of data, that is, all users have equal management rights to the data on the chain. Therefore, the risk of individual mistakes is first eliminated from the operation. Data decentralization is solved through the network-wide consensus of the blockchain, and zero-knowledge proofs can be used to solve verification problems and realize the scenario of using user privacy data in a public decentralized system. While meeting the needs of the Internet platform, it also So that part of the data is still only in the hands of the user.
4. Blockchain Zero-Knowledge Proof
Zero-knowledge proof means that the prover can make the verifier believe that a certain assertion is correct without providing any useful information to the verifier, that is, proof The investor can fully prove that he is the legal owner of certain rights and interests without leaking relevant information, that is, the "knowledge" given to the outside world is "zero". By applying zero-knowledge proof technology, data correlation verification can be achieved in the context of ciphertext, and data sharing can be achieved while ensuring data privacy.

C. SHS uses blockchain to further explore the development of medical insurance

Insurance has high risks, strong dispersion and high sensitivity, which are naturally consistent with the attributes of blockchain . The traceability feature of blockchain technology can make the medical insurance service process more transparent; the security capabilities of blockchain can well solve the privacy protection and commercial information security issues in data transmission; and the consensus mechanism of blockchain can The credibility of the transaction is further guaranteed from the source. Due to the above-mentioned characteristics of blockchain, it can largely help the medical insurance industry to realize information sharing and connection of a large number of dispersed nodes within the industry, between industries and between users, thereby greatly accelerating the space and speed of medical insurance innovation.

With blockchain technology, each participant can now individually and digitally load information relevant only to their shared contract. This way, when a transaction is being executed, everyone involved can view the status, history, and process of being authorized. Peer-to-peer (P2P) transmission and open and transparent blockchain technology are becoming very potential value propositions in the industry.

Because blockchain permanently records all transactions between its participants, it is able to provide a level of transparency that current paradigms in the insurance sector do not offer.

SHS (Smart Health Sandbox) selects the SHA-256 encryption mechanism to encrypt the data in the chain. The transaction data and trader information between users are only available to the transaction parties and users with corresponding permissions. Can be viewed. Medical insurance based on blockchain smart contracts will provide a more optimized insurance model. Users do not need to pay expensive insurance management costs, but directly establish intelligent insurance contracts on the blockchain, with management costs close to zero, allowing users to Insurance funds are completely managed and controlled by the user. Medical institutions on the chain can also seamlessly connect with mutual medical insurance, data connectivity, and economic connectivity, allowing people to obtain better medical insurance services.

The third level of blockchain technology development is the process of common development and mutual promotion. Especially for the insurance industry, the application of blockchain technology will greatly improve business efficiency and reduce business risks.

D. How is the application of blockchain technology

Blockchain technology is a decentralized distributed ledger database, which is characterized by decentralization and data Open and transparent, information is transparent and difficult to tamper with.
Currently, blockchain technology has been applied in many scenarios such as supply chain, manufacturing, social welfare, and public services. Blockchain technology can be applied to smart contracts, securities, record preservation, etc.

E. What does blockchain technology service look like

Blockchain can be involved in solving all aspects of our lives. Let’s briefly talk about some of the things we care about in our daily lives
:
Blockchain technology is a decentralized consensus mechanism that maintains a complete, distributed, and non-tamperable ledger database. It allows participants in the blockchain to implement a unified ledger system without establishing a trust relationship.
In the future, blockchain will be applied in any field and will have a great impact on human life. Blockchain technology is regarded as one of the main protocols for the next generation of value Internet. Blockchain technology will be useful in any area of ​​production and life that lacks trust. It can be widely used in fields ranging from digital currency to securities and financial contracts, medical treatment, games, artificial intelligence, smart contracts, Internet of Things, identity verification, asset trading, e-commerce, social communication, file storage and other fields.
Medical aspects
Use blockchain technology to save personal medical records, and you will have a personalMedical historical data can be understood as electronic medical records on the blockchain. Data will be available for future medical treatment or health planning, and the real owner of this data is the patient himself, not the hospital or a third-party organization. In addition, these data have strong privacy, and the use of blockchain technology can also help protect patient privacy.
Payment System
Compared with the existing traditional payment system, blockchain technology can avoid complicated systems and conduct transactions directly between the two parties without involving intermediaries. Even if part of the network is paralyzed, it will not Will affect the operation of the entire system. This method is low-cost, fast, and requires no intermediate handling fees.
Banking
As a digital, secure and tamper-proof account, blockchain realizes the core function of the banking industry: a secure storage and transfer center for value. Some banks with a keen sense of smell in the world have begun to actively plan and join the blockchain research and application army, hoping to gain the initiative in the fierce competition in the future.
Blockchain Identity Authentication
Blockchain has the feature that everyone can check it. Everyone can query block information anywhere there is a network. The highly transparent feature also makes the block The chain is full of charm. In the future, ID cards and household registration books will be basically unnecessary, because every identity information can be written into the blockchain. When you need to verify information, you only need to look it up to find it.
Election
Based on voting transactions on the blockchain, it can be confirmed that no votes have been modified or deleted, and there will be no improper votes.
Real Estate
Blockchain technology can change the way the real estate market operates. It can merge many complex processes and cases that real estate companies usually deal with, speed up transaction processes, reduce fraud, and provide benefits for every participant. Provide more transparent and secure transactions. Provides a way to achieve paperless and fast transaction needs.
Securities issuance and trading
General stock and other securities transactions have a high probability of various errors, requiring manual error correction, which prolongs the time required for transaction settlement. Transactions through distributed ledgers can automate the entire process and improve security and efficiency. The identity of the transaction party, transaction volume and other information are recorded on the blockchain in real time, coupled with an open, transparent and traceable system. It is conducive to market maintenance by securities issuers and regulatory authorities, and can reduce the occurrence of black-box operations, insider trading, etc.
Blockchain has unique technical advantages, shows unique charm, and has great application imagination in scenarios where it is relatively closed, has multi-party trust issues, and carries value transfer. At the current stage, blockchain is worth exploring in some scenarios.

F. Application of Blockchain

1. Blockchain + Medical: In the medical field, blockchain can use its anonymity, decentralization and other characteristics to protect patient privacy. . Electronic health records (EHR), DNA wallets, drug anti-counterfeiting, etc. are all possible application areas of blockchain technology. IBM last yearThe report predicts that 56% of the world's medical institutions will be...
2. Blockchain + Internet of Things: The Internet of Things is a very broad concept. If communications, energy management, and supply chain management are combined , sharing economy, etc., the Internet of Things application of blockchain technology will become a very important application field.
3. Blockchain + IP copyright & cultural entertainment: The Internet is developing better and better, and digital music, digital books, digital videos, digital games, etc. have gradually become mainstream. The rise of the knowledge economy has made intellectual property rights a core element of market competition.

Extended information:
1. Current application cases of blockchain
1. Application case 1: Tami Chain is a consortium chain platform based on Super Ledger, which realizes the non-linear transformation of Chinese state-owned enterprises. On-chain services for investment, financing and M&A transactions of target asset projects. The universal points management system (TamiDou) forms an internal reward mechanism, mobilizes production enthusiasm, and promotes the conversion of rights and data interoperability between various objects in the Tamichain ecosystem. The objects of shared points can be members of the corporate ecosystem such as trading institutions, investors, intermediary service partners, etc. Different issuance mechanisms and circulation mechanisms can also be formulated for different members to achieve positive interactions among blockchain digital points, business goals, and participants. The construction content includes: 1. Blockchain basic platform; 2. Points system; 3. Data circulation platform; 4. Certificate storage system; 5. Other subsystems on the chain. Project address: Enterprise M&A and Financing Information Service Platform_Tamigo
2. Application Case 2: Xuyuan Art Digital Asset Trading Service Platform is a trading platform for art copyrights and a discovery platform for global art values. A truly decentralized high-end service platform for the international art market. Based on the blockchain token, the platform implements an encrypted digital currency based on the world's outstanding artworks to exchange the value of artworks. Functions include copyright certification: artists and creators can perform copyright certification on the platform. Asset tokenization: Art creators divide the artistic copyright into tokens, and investors invest according to their subscription shares and receive income. Usage rights trading: Artists and creators place the rights to use artworks on the chain for transactions, and trigger smart contracts, allowing buyers to obtain the rights to use artworks (including various transactions such as leasing, exhibitions, etc.).

G. How to define blockchain and what are the application scenarios of blockchain?

Nowadays, many people think that blockchain is a universal technology that can do anything. Blockchain technology is a myth!
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.

The characteristics of blockchain technology include:

Blockchain is a distributed system that can The collaborative operation of the database storage system is different from the traditional database operation - the read and write permissions are in the hands of a company or a centralized authority (centralization characteristics). The 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.

The three words "blockchain" were completely ignited during the Spring Festival that just passed, and the limelight overshadowed everything else. Some people said that this was the arrival of a new era, and the past has become classic, while others said To say that everything is hype 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, and does not confirm the rights in real time during the generation of evidence, the entire rights confirmation process takes a long time, and the evidence collection is difficult and costly. , it is extremely difficult to provide evidence and trace the source, and 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 electronic contracts. They refer to a process, from the conclusion of the contract to the confirmation to the final execution." Jin Hongzhou explained.

Through the following limited cases, I hope everyone can understand the actual performance of blockchain technology, thereby stimulating interest in such solutions.

1. Administrative Services

Over the centuries, the roles and responsibilities of public administration have not changed significantly – or rather, what has changed dramatically is actually the size of the data and the specific ways in which public agencies handle it. Although various digital technologies already exist to help collect and process data, issues such as anonymization, portability, and the immutability of large amounts of data remain unresolved.

Sasha Ivanov, founder, entrepreneur and CEO of Waves Platform and Vostok projects, said, "What the public administration currently lacks is a more convenient user experience (UX) for data use. To improve the user experience , we should introduce some kind of layer into it that acts as a trusted public environment with transparentData can be stored transparently and anonymously in an immutable manner. ”

Governments around the world are gradually facing the existence of such problems by launching federal agency and enterprise-level programs such as the U.S. Federal Blockchain Initiative. The United States held the first federal district conference in July 2017. Blockchain Forum, and the U.S. General Services Administration currently has more than 200 related use case repositories. Ivanov explained, "Distributed systems can really help us establish such a reliable environment, improve our big data work, and even Bringing all emerging technologies together—including artificial intelligence, the Internet of Things, and more. In fact, whenever we face any kind of technology, it always embodies the sum of other technologies. ”

Now, the system supported by the blockchain can actually work - this view has been unanimously recognized by all experts and has become the most important theoretical basis. In other words, next we have to What we do is to create more production-ready solutions.

2. Payment services

The government needs to process transactions, many of which involve the exchange of funds with citizens. District Blockchain technology has huge potential application value in reducing the cost of fund transfers - including using new blockchain-based cryptocurrencies as intermediate transaction carriers, or using blockchain as a means of fund transfer, etc. Once a perfect solution is found , the business opportunities contained therein will be endless - especially for those who need to conduct frequent cross-border or Internet transactions.

The Jasper project was developed by the Bank of Canada to help it further think about central banks And how other financial institutions should implement payment operations between different banks based on distributed ledgers. The Bank of Canada has also developed its own digital currency variant "CAD Coin" to test the use of a certain national currency on top of the blockchain The feasibility of it.

This project brings an interesting conclusion, that is, we should say no to the proof-of-work public chain system. In an article titled "Jasper Project: Is a distributed batch payment system feasible?" "In the paper, the author observed that "Proof-of-work systems are not suitable for such large transaction processing systems because they assume that all transactions in the system require publicity and observability to a certain extent. ”

3. Digitization and Intellectual Property

The government is responsible for maintaining copyright records and databases. These records prove the ownership of intellectual property. A blockchain-based system allows various artists, Performers and writers can time-stamp their works and theoretically detect copyright infringements and even retain permanent records of rights. In fact, many governments have taken important exploratory steps in this direction.

Iran recently announced that it will deploy this technology. "Iran Financial Tribune" quoted Morteza Mousavian as saying that "the Ministry of Culture Digital MediaThe Ministry of Public Security has reached an agreement with a blockchain company to jointly design a system that can be used to protect online copyrights. "He also added, "Relevant programs will soon be released to users in an easy-to-use manner. ”

This work is still in the early stages of exploration, but it provides corporate customers with the possibility of preserving records through replication technology. From a theoretical level, companies can use blockchain solutions for financial accounting, And discover the errors in real time.

4. Welfare distribution

The government has the responsibility to create a level playing field for citizens. Citizens who are chronically poor or economically disadvantaged certainly Government support and assistance is needed to ensure that they are able to maintain their lives and acquire the ability to continue to develop. However, welfare distribution is neither simple nor often straightforward. Problems such as corruption and imposters have been seriously undermining government programs. Various distribution channels.

In China, the National Council of Social Security Fund is conducting early research on how to use blockchain technology to improve the delivery of national benefits to citizens. At the same time, India is also taking action , Andhra Pradesh and Telangana are already using blockchain to support their civilian resource supply systems.

It is said that many companies, including Microsoft, are also considering using the same technology. These solutions, which will touch individual employees and functional roles, are expected to gradually appear in small businesses in the near future.

5. Tendering activities

In order to build public infrastructure or provide For related services, governments hope to achieve economies of scale and competitive gains through tendering as much as possible. However, the tendering process is often not fair or transparent. Public procurement has long been a major scene of rampant corruption around the world. Transparency International pointed out, “Many governments will award project contracts to one supplier in the absence of fair competition. This allows companies with greater political resources to unfairly outcompete competitors; or companies in the same industry negotiate bids in advance to ensure that each company gets a piece of the tender pie. This will significantly increase the cost of delivering services to the public – we have found that corruption issues can increase project costs by 50%. ”

So, how can blockchain technology solve the bidding problem? According to Ivanov, “Unlike decentralized centralized systems, independent ledgers powered by blockchain will be able to improve bidding or Transparency of any other financial processes that need to be tracked. The intervention of blockchain technology will help track the use of funds and ensure that they are paid out as expected and within the allowed time. ”

Currently, Japan’s Ministry of Interior and Communications has announced a blockchain-based bidding system, which means that in industries with serious collusion problems, small and medium-sized enterprises are expected to usher in a more transparent bidding method and brighterbright development prospects.

Although quite a few of the cases mentioned previously are far from finalized, they do provide many possibilities for companies and governments. Of course, the key lies in implementation; and we should also look at all this with optimism, that is, although blockchain technology is often misunderstood, it is and will eventually find a direction in which it can exert its own energy!

< p> In layman's terms, the blockchain is like a dozen beacon towers on the Great Wall. If an enemy comes at one place, they will send out smoke. The other beacon towers will know about it and enter a defensive state together. In technical language, it is a distributed ledger. Each node keeps accounts separately. The failure of one or two nodes will not affect the entire network.

How is this distributed network different from the distributed servers of Google Network? Google Network's distributed servers still belong to Google Network and are controlled by their central scheduling algorithm. The distributed nodes in the blockchain do not know each other and have no legal relationship. You can just go offline and shut down if you want, but because of the currency rewards, there will always be someone who will turn on the machine as a new node to support the network.

After the popular and technical explanation, I hope you understand. So the first application scenario is finance. I put my money in Alipay. If Alipay doesn't recognize it one day, there's nothing you can do. But on the blockchain, it is useless if one node does not acknowledge it, because other nodes still have my records. The second is the contract. Nowadays, contracts are made on paper and are easy to be faked. But if they are put on the blockchain, they cannot be faked.

There are more application scenarios. It is recommended to check the top 100 digital Huobi online to understand the corresponding projects behind them and become a blockchain expert. .

Blockchain technology was first used in Bitcoin. Blockchain provides a reliable and trustworthy means of organizing data for cross-subject business scenarios. JD.com is essentially a supply chain company, and blockchain technology will be first used in many scenarios of the supply chain.

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, with the development of blockchain technologyThe application is becoming increasingly mature and will be used in many industries to create a new ecological model based on technological trust

The characteristics of blockchain are distributed accounting and decentralization, but the ultimate goal is to connect people and 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.

What is blockchain

If you use non-technical terms to explain blockchain, 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 are exploding, having such a place would be like a magical treasure.

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 trading network has changed from a star structure to a point-to-point P2P structure.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.

H. When the medical and health field encounters blockchain + artificial intelligence

Big data, blockchain, artificial intelligence, Internet of Things, etc. are all It has been a hot topic in recent years and has become a hot topic in the market from time to time. With the rapid development of science and technology, the two most important pieces of so-called financial technology are blockchain and artificial intelligence.

The characteristic of blockchain is that it combines distributed storage technology with consensus mechanisms and encryption algorithms, and realizes point-to-point transmission, through which different nodes in the network jointly participate in the recording and storage of data. Distributed storage is gradually decentralized and flattened, making data storage faster, safer and cheaper, which is what various fields are currently pursuing.

While technology continues to mature and improve, the application fields of distributed storage and artificial intelligence are also constantly expanding. Distributed storage can realize massive and efficient data storage, while artificial intelligence can deal with massive data. Analysis of data.

Distributed storage encrypts and stores data on different nodes through data segmentation, which improves the security of data storage and reduces the cost of data storage. At present, a large number of enterprises store data in centralized databases. Once the server is attacked or malfunctions, it will cause problems such as large-scale network paralysis or data loss, especially for some institutions where large amounts of data are concentrated, such as medical institutions, express delivery companies, etc. , more vulnerable to hacker attacks.

Take the analysis of medical institutions. Such institutions always have various troubles with data quality issues, not onlyAttacks by hackers, as well as errors by clinicians, cannot effectively and securely address the storage of medical records, medication certificates, and electronic medical records. Blockchain can use distributed technology and redundancy technology to divide these data into fragments and store them encrypted on different nodes. The data processing speed is greatly improved compared to the previous centralized management. Due to the use of encryption technology, it is further guaranteed Regarding patient privacy, even if a hacker breaks into a certain node, the security of the data will not be affected.

The use of artificial intelligence deep learning to assist patient diagnosis and management, and through the analysis of case medical images, will help doctors make more accurate and efficient treatments. Combining distributed storage with artificial intelligence, artificial intelligence can provide timely health reminders to stored data and maintain correct editing and updating of electronic medical records.

Although the application of artificial intelligence in the medical field has always been controversial, with the in-depth development of machines and technology, and the much less controllability of artificial intelligence in the medical field, in the future, with the help of artificial intelligence applications Diagnosis and health management will also become a trend.

The application of distributed storage in the medical field also has broad prospects. It can not only improve the utilization of storage resources, but also provide a basic guarantee for the security of data storage. Combining distributed storage with artificial intelligence is of great significance to improving medical efficiency.