Block chain application of social security

1.

I have seen your question. In which aspects can blockchain be applied? Below by the small series to answer for you

bitcoin is the first specific application of blockchain. It was proposed in a paper by one person or a group of people in 2008. Bitcoin uses blockchain to send digital messages to bitcoin, and the name of bitcoin is bitcoin, without the intervention of a third party middleman

However, bitcoin is not the only application of blockchain, as follows:

1. Financial field: the application of blockchain technology in the financial instry can eliminate the third-party intermediary link, realize the point-to-point direct docking, so as to greatly rece the cost and quickly complete the transaction payment

2. Internet of things and logistics: blockchain can also be naturally combined in the field of Internet of things and logistics. Through blockchain, we can rece logistics costs, trace the proction and delivery process of goods, and improve the efficiency of supply chain management

3. Public service: blockchain is closely related to people's proction and life in public management, energy, transportation and other fields, but the centralization of these fields also brings some problems, which can be transformed by blockchain

4. In the field of digital right: through blockchain technology, works can be authenticated to prove the existence of text, video, audio and other works, and ensure the authenticity and uniqueness of ownership

5. In the field of insurance claims, insurance institutions are responsible for fund collection, investment and claims settlement, and often have higher management and operation costs. Through the application of smart contract, there is no need for the applicant to apply or the insurance company to approve. As long as the claim conditions are triggered, the automatic claim settlement of the policy can be realized

6. Public welfare field: the data stored on the blockchain is highly reliable and tamperable, which is naturally suitable for social public welfare scenarios. The relevant information in the public welfare process, such as donation project, collection details, fund flow, recipient feedback, etc., can be stored on the blockchain, and can be made transparent and public, which is convenient for social supervision

the above is for your reference only, hope you can adopt it, thank you

2. 1. What is blockchain? In a word
A: blockchain is an encrypted database chain, that is, the transaction data in multiple timestamps / events are encrypted and linked together, and the data can not be tampered with or shared
2. Performance and logic:
A. external operation forms: bank deposit and withdrawal, remittance, account in and out, shopping, currency issuance, capital transaction, etc
B. internal logic processing (software program): after human operation, the data will be encrypted first and then stored in the database. After the program, the data will be divided into regions, such as the data in the event and time stamp will be classified and put together into a region. Multiple events and data in timestamps are associated to form a blockchain. The encrypted data can be shared, but not tampered with
C. forms of sharing: querying personal information, auditing, etc. Query permission / sharing permission: different permissions can query different data. For example, the bank can query the information of all people, and the indivial can only query the indivial
3. Most of the examples are different, but the logic processing ideas are the same, but the implementation methods and operations are different
4. Blockchain: it has the characteristics of encrypted data, tamperable data and shared data
5. Blockchain Technology: the technology of encrypting, partitioning and sharing data with editing programs
there are suggestions for guidance
application fields: finance, it, commodity sales, online shopping, etc.

3.

A: the main application fields of blockchain technology are finance, Internet of things and logistics, public service, digital right, insurance and public welfare

First, in the field of finance,

blockchain has great potential application value in international exchange, letter of credit, equity registration, stock exchange and other financial fields

Second, the Internet of things and logistics

blockchain can also be naturally combined in the field of Internet of things and logistics. Through blockchain, we can rece logistics costs, trace the proction and delivery process of goods, and improve the efficiency of supply chain management

Third, in the field of public service, blockchain is closely related to people's proction and life in the fields of public management, energy and transportation. However, the centralization of these fields also brings some problems, which can be transformed by blockchain

Fourthly, in the field of digital right, through blockchain technology, works can be authenticated to prove the existence of text, video, audio and other works and ensure the authenticity and uniqueness of ownership

In the field of insurance, insurance institutions are responsible for fund collection, investment and claim settlement, and often have higher management and operation costs

Sixth, the data stored on the public welfare field

blockchain is highly reliable and tamperable, which is naturally suitable for social public welfare scenarios. The relevant information in the public welfare process, such as donation project, collection details, fund flow, recipient feedback, etc., can be stored on the blockchain, and can be made transparent and public, which is convenient for social supervision

4. To answer this question, let's first introce the core technology of blockchain and the current insurance instry<

Introction to the core technology of blockchain
blockchain mainly solves the trust and security problems of transactions, so it proposes four technological innovations to solve this problem:
the first one is called distributed ledger, which is that transaction bookkeeping is completed by multiple nodes distributed in different places, and each node records complete accounts, Therefore, they can participate in the supervision of the legitimacy of the transaction, but also can jointly testify for them. Different from the traditional centralized accounting scheme, no single node can record accounts separately, so as to avoid the possibility that a single bookkeeper is controlled or bribed to record false accounts. On the other hand, because there are enough accounting nodes, in theory, unless all nodes are destroyed, the accounts will not be lost, thus ensuring the security of the account data
the second is called symmetric encryption and authorization technology. The transaction information stored on the blockchain is public, but the account identity information is highly encrypted, which can only be accessed under the authorization of the data owner, thus ensuring the data security and personal privacy
the third mechanism is called consensus mechanism, which is how to reach a consensus among all accounting nodes to determine the validity of a record. This is not only a means of identification, but also a means of preventing tampering. Blockchain proposes four different consensus mechanisms, which are suitable for different application scenarios and achieve a balance between efficiency and security. Taking bitcoin as an example, the workload proof is adopted. Only when more than 51% of the accounting nodes in the whole network are controlled can a nonexistent record be forged. When there are enough nodes to join the blockchain, this is basically impossible, thus eliminating the possibility of fraud
the fourth technical feature is called smart contract, which is based on these trusted and tamperable data and can automatically execute some pre-defined rules and terms. Take insurance as an example. If everyone's information (including medical information and risk occurrence information) is true and reliable, it is easy to carry out automatic claim settlement in some standardized insurance procts<

risk management of policyholders
in the current insurance business, disputes between insurance companies and policyholders occur from time to time, either the policyholders provide false personal information to defraud insurance, or there are differences in the determination of exemption clauses when settling claims. The key to these problems lies in the lack of a real and reliable data collection and storage means for the personal information of the insured
with the advancement of national systematic projects such as medical information digitization and personal credit system, more and more authoritative data sources appear. If these data can be introced and stored on the blockchain, it will become the digital identity of everyone. The data above is authentic, can't be tampered with, real-time synchronization and life-long validity, It will bring great benefits to the risk management of the insured
the first is to get through the data between different companies and refer to each other, so as to discover the information of repeated insurance and historical claims in time, and discover high-risk users in time
secondly, introcing data from different instries into the blockchain can improve the accuracy and efficiency of underwriting and claims verification. For example, if you can query all the medical records of the insured, even the medical records of the immediate family members, on the blockchain, you will have first-hand information about the current physical condition, disease history and family history of the insured, effectively eliminating the insurance with diseases
for example, at present, China's first network mutual aid platform using blockchain technology as the core is concentric mutual aid. On the basis of traditional mutual aid platform, with the help of blockchain technology, it realizes decentralized information sharing, innovates and realizes comprehensive and transparent operation, and builds a fair, just, open, safe and efficient open mutual aid information service platform for the public.

5. What's your calculation power? Now, if you don't have 100g computing power, don't dig bitcoin. The money is not so easy to earn. And the difficulty of mining increases by 20% every 14 days

6. Mutual insurance is also called network mutual aid, and network mutual aid is a combination of the original insurance form and the Internet. By using the information matching function of the Internet, members promise to bear each other's risk and loss through agreement. In order to avoid indivial overburden, it is agreed that the single mutual aid fund should not exceed several yuan, and the solvency problem is avoided<
the current problems of online mutual aid are as follows:
1. The operation is not transparent
there may be problems such as the platform fabricating mutual aid events to obtain users' funds
2. User privacy
the online mutual aid platform is generally carried by technology companies and lacks supervision and public credit endorsement, so it is easy to be questioned
3. Low efficiency
the compensation process is slow
the emergence of blockchain technology provides solutions to these problems. The network mutual aid application based on blockchain platform can maximize the absolute security of funds, protocols and information, and improve the ability of risk control
the flow of funds is transparent
all the details of the flow of funds are recorded on the blockchain, and the data can not be forged or tampered to ensure the authenticity and validity of the data. All regulatory units, public media and ordinary users can view and supervise the implementation of the rules at any time
the rules are efficient
all the funds are transferred according to the open and tamperable smart contract, Once determined, it can be executed accurately, no one can intervene, no legal person can misappropriate or intervene, which improves the efficiency of rule execution
user information security
all personal sensitive information is highly encrypted and stored, unless authorized by the user, Other people can't access and steal
the service will never be down
the network mutual assistance running on the public chain does not depend on whether a central server is online, which can ensure that the service provided will never be down

7. Taking Tongxin mutual aid platform as an example, the network mutual aid application based on the blockchain platform can maximize the absolute security of funds, protocols and information, and improve the risk control ability, which is shown in the following aspects:
the flow of funds is transparent
all the details of the flow of funds are recorded on the blockchain, The data can not be forged and tampered to ensure the authenticity and effectiveness of the data. All regulatory units, public media and ordinary users can view and supervise the data at any time
efficient rule execution
all fund transfers are executed in accordance with open and tamperable smart contracts. Once determined, they can be executed accurately. No one can intervene, and no legal person can misappropriate or intervene, which improves the efficiency of rule execution
user information security
all personal sensitive information is highly encrypted storage, unless authorized by the user, other people can not access and steal
services will never be down
network mutual assistance running on the public chain does not depend on whether a central server is online, which can ensure that the services provided will never be down
to sum up, the blockchain technology is fully applied to the network mutual aid to ensure the security of users' sensitive information to the maximum extent, at the same time, enhance the transparency of network mutual aid, and enhance the trust between mutual aid workers, mutual aid workers and companies, mutual aid workers and third-party organizations.