Internet blockchain in the field of science and technology

1. 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.

2.

A: application fields of blockchain technology

I. financial field

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 the blockchain, we can rece the logistics cost, trace the proction and transportation 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

3. Blockchain is the core supporting technology of digital cryptocurrency system represented by bitcoin. The core advantage of blockchain technology is decentralization. It can realize point-to-point transaction, coordination and cooperation based on decentralized credit in a distributed system without mutual trust by means of data encryption, time stamp, distributed consensus and economic incentive, so as to solve the common high cost, low cost and low cost of centralized institutions Low efficiency and data storage insecurity provide solutions
the application fields of blockchain include digital currency, token, finance, anti-counterfeiting traceability, privacy protection, supply chain, entertainment, etc. with the popularity of blockchain and bitcoin, many related top domain names have been registered, which has a great impact on the domain name instry.

4. A: blockchain technology has been applied in many fields
I. financial field
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. This field is considered as a promising application direction of blockchain
Third, 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
IV. 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
in terms of insurance claims, insurance institutions are responsible for fund collection, investment and claims settlement, and often have higher management and operation costs< 6. In the field of public welfare, the data stored on the blockchain is highly reliable and tamperable, which is naturally suitable for social public welfare scenarios.

5. In the past, it used to be Internet technology, Internet mode and Internet platform. With the popularity of blockchain, the development trend now is blockchain technology, blockchain mode and blockchain platform. All regions are vigorously developing blockchain, and blockchain platform also arises at the historic moment. However, the situation of each platform is also uneven, including speculation and transaction currency, When you invest, you should have a clear view. This year, a SMIC blockchain service platform project has been set up in Changsha credit instry park, which is for enterprise users to solicit cooperation on the chain. This official initiative should be more reliable.

6. First of all, popularize: the new retail lies in new experience, new scene and new operation efficiency. Compared with the traditional retail, the new retail uses more advanced technology to optimize from these three aspects< br /> 
1 new experience: on the consumer side, new retail can greatly enhance the user experience of consumers< br /> 
2 new scenarios: new retail enterprises try their best to discover and mine more new customer application scenarios to meet customers' consumption needs to the maximum extent

3 new operation efficiency: new retail uses Internet tools and methods to improve the efficiency of traditional retail and realize integration< br /> 
two years after the new retail concept was put forward, it has entered a mature and stable state. The concept of blockchain + new retail will be the future development direction of new retail. As an emerging technology field, blockchain is also the development direction of Internet technology in the future< br /> 
the smart contract, digital wallet, digital currency payment, commodity traceability and other features in the blockchain are combined with the new retail. Using the characteristics of blockchain in these application fields, retail instry can get more application fields, let users experience different payment methods, and improve the operation efficiency of retailers. Capture technology has set foot in the blockchain + new retail field in advance. With its advantages in the blockchain technology field, it can solve the above three technical problems for the new retail field and meet more development needs of the retail instry.

7. Multinet is one of them