Blockchain applied by Social Security Institute
financial field
blockchain has great potential application value in international exchange, letter of credit, equity registration, stock exchange and other financial fields. The application of blockchain technology in the financial instry can save the third-party intermediary link and realize the point-to-point direct docking, so as to greatly rece the cost and quickly complete the transaction payment
in the field of 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. This field is considered as a promising application direction of blockchain
in the field of public service
blockchain is closely related to people's proction and life in the fields of public management, energy, transportation, etc., but the centralization of these fields also brings some problems, which can be transformed by blockchain. The decentralized and fully distributed DNS service provided by the blockchain can realize domain name query and resolution through the point-to-point data transmission service between nodes in the network. It can be used to ensure that the operating system and firmware of an important infrastructure have not been tampered with. It can monitor the status and integrity of the software and detect bad tampering, And ensure that the data transmitted by the system using the Internet of things technology has not been tampered with
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. After the works are confirmed on the blockchain, the subsequent transactions will be recorded in real time to realize the full life cycle management of digital rights, and can also be used as a technical guarantee in judicial evidence collection
in the field of insurance
in terms 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
public welfare
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
1. Financial field. Blockchain has great potential application value in international exchange, letter of credit, equity registration, stock exchange and other financial fields. The application of blockchain technology in the financial instry can save the third-party intermediary link and 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. This field is considered as a promising application direction of blockchain
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. The decentralized and fully distributed DNS service provided by the blockchain can realize domain name query and resolution through the point-to-point data transmission service between nodes in the network. It can be used to ensure that the operating system and firmware of an important infrastructure have not been tampered with. It can monitor the status and integrity of the software and detect bad tampering, And ensure that the data transmitted by the system using the Internet of things technology has not been tampered with< 4. Digital rights. 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. After the works are confirmed on the blockchain, the subsequent transactions will be recorded in real time to realize the full life cycle management of digital rights, and can also be used as a technical guarantee in judicial evidence collection. For example, mine labs, a start-up company in New York, developed a metadata protocol based on blockchain. This system called mediachain uses IPFs file system to realize right protection of digital works, mainly for right protection applications of digital pictures
5. Insurance. In terms 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. A typical application case is lenderbot, which was launched by the blockchain enterprise stratumdeloitte and payment service provider lemonway in 2016. It allows people to register customized micro insurance procts through the chat function of Facebook messenger to insure the high value items exchanged between indivials, and the blockchain replaces the third party role in the loan contract< 6. Public welfare. 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.
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.
What are the current problems of human resources? Externally, it includes the identification of the authenticity of candidates' information, internally, it includes the lack of personnel growth records, and so on. In essence, blockchain is a shared database, in which the data or information has the characteristics of "unforgeability", "trace in the whole process", "traceability", "openness and transparency" and "collective maintenance", The data built on it has the basis of "trust", which is more reliable for enterprises
this sounds wonderful, but it will take time from theory to practice. Just as bitcoin's popularity depends on the participation of a large number of miners, the construction of blockchain + human resources needs the extensive participation of human resources organizations (future, Zhilian, etc.) and employers. Otherwise, it will only be a gimmick rather than a utility.
Blockchain technology also has incomparable advantages in the insurance instry. From the perspective of data management, the application of blockchain technology can effectively improve the risk management and control ability of insurance companies, including the risk supervision of insurance companies and the risk management of policyholders
The application of 
blockchain technology in insurance instry can strengthen the internal risk supervision of insurance companies. Blockchain technology can record the daily operation process of insurance company on the node, realize the in-process control of the company's capital flow, investment situation, compensation amount and other business, and improve the company's risk management and control ability
in addition, the blockchain technology is safe, reliable and can not be tampered with at will, which ensures that the information obtained by the policyholder is true and effective, and enhances the risk management ability of the policyholder