Steps of certificate storage of Ethereum blockchain
what is Ethereum:
Ethereum is an innovation based on the application of technologies and concepts in bitcoin to computers. Ethereum itself imitates a lot of bitcoin technology to maintain the computer platform. blockchain technology is one of them
Ethereum platform can safely run any program users want
advantages of Ethereum over other competitive currencies before Ethereum appeared, some digital currencies imitated bitcoin. However, these projects have their own shortcomings, they can only support one or several specific applications at the same time< However, the reason why Ethereum can surpass the limitations of these projects in the past is because of the core idea of Ethereum
what Ethereum wants to implement is a blockchain protocol with built-in programming language. Since it supports programming language, in theory, any blockchain application can be defined with this language, and then run on Ethereum's blockchain protocol as an application
The design of Ethereum is very flexible and adaptable
Ethereum target sets the advantages of blockchain technology, in order to add the advantages of blockchain, such as decentralization, openness and security, to almost all computing fields
blockchain applications of Ethereum
Ethereum has many blockchain applications, such as digital applications of gold and stocks, financial derivatives applications, DNS and digital authentication, etc
Ethereum has achieved more than 100 blockchain applications by many start-ups
Ethereum has also been closely watched by some financial institutions, banking consortia (such as R3), as well as large companies like Samsung, Deloitte, RWE and IBM. As a result, a number of blockchain applications such as simplified and automated financial transactions, merchant loyalty index tracking, and gift cards designed to achieve decentralization of electronic transactions have emerged
the relationship between Ethereum and blockchain:
Ethereum is a programmable blockchain
Ethereum does not give users a series of preset operations (such as bitcoin transaction), but allows users to create complex operations according to their own wishes
in this way, Ethereum can be used as a platform for various types of decentralized blockchain applications, including but not limited to cryptocurrency
like other blockchains, Ethereum also has a peer-to-peer network protocol. Ethereum blockchain database is maintained and updated by many nodes connected to the network. Each network node runs the Ethereum simulator and executes the same instructions. Therefore, people sometimes call Ethereum "world computer"
blockchain developers should establish effective channels to collect the deficiencies of the current blockchain and make targeted improvements. This process is called improvement proposals: bitcoin isolation witness (composed of a series of BIPS) is a good example. Application layer developers can use IP process to feed back the problems found in the use process to developers, forming a virtuous circle. And IP process should not be limited to the technical field, but should go deep into the business layer
the Xueshuo innovation blockchain Technology Workstation of Lianqiao ecation online is the only approved "blockchain Technology Specialty" pilot workstation of "smart learning workshop 2020 Xueshuo innovation workstation" launched by the school planning, construction and development center of the Ministry of ecation of China. Based on providing diversified growth paths for students, the professional station promotes the reform of the training mode of the combination of professional degree research, proction, learning and research, and constructs the applied and compound talent training system.
Innovation is the driving force of development, and the protection of intellectual property rights is to protect and encourage innovation, so as to promote the progress and development of economy and society
take the example of micro right, a blockchain intellectual property protection platform of e-baoquan, which combines intellectual property protection with digital technology, and uses the characteristics of stable and tamper resistant blockchain storage to store work data on the blockchain in the form of hash encryption for blockchain confirmation, so as to help users register relevant information of works in the blockchain

at present, financial management is mainly carried out by information system, including LIS system, PACS system and OA system in addition to his system [5]. At present, except for the hospitals with advanced technology in some developed areas, most hospitals have not yet achieved a high degree of integration between the systems. Therefore, the differences in basic operation algorithms, data collection and feedback methods lead to the poor timeliness of information disclosure of each mole of the financial system, which can not meet the requirements of government departments for financial transparency. With the support of blockchain technology, the hospital's various mole systems can operate in an integrated way, and the system data of different sectors can be extracted and shared in time, which lays a solid foundation for the integration of hospital's financial system accounting, budget implementation, capital revenue and expenditure, financial analysis, etc
2. Deepen the content of financial management
with the continuous deepening of medical reform, the business volume of medical institutions has increased, and the more refined the financial management is required. However, the current hospital financial management is far from enough segmentation. Under the diversified changes of medical insurance and expenditure, the lag of information statistics seriously hinders the accurate and automatic operation of the financial system. Strictly speaking, hospital financial management only includes budget management, cost management and other contents, and subsequent other expenses are easy to be connected in the calculation process, which can not meet the needs of financial function integration process. Therefore, we should sort out the existing financial work, take the financial budget, revenue and expenditure as the source of management, and bring the medical project research funds, operating funds, expenditure approval into the scope of financial management. The introction of blockchain technology into the hospital financial management system can not only realize the above financial management steps, but also investigate and track the use of funds in real time, so as to realize the traceability of the source and the clarity of the direction of funds in the process of investigation. In this way, the horizontal development of financial content can fully improve the efficiency of hospital financial management
3. Improve the efficiency and accuracy of hospital financial management
hospital financial management plays an important role in the daily operation of the hospital, and also determines the accuracy of hospital financial information. The hospital should focus on improving the financial management to prevent and control the economic crisis caused by the financial management failure. In terms of the current enterprise financial management, the application of blockchain technology and AI intelligence is the overall development trend. Therefore, the combination of blockchain technology is an important grasp to upgrade the hospital financial management system. Affected by the characteristics of the hospital instry and the limitations of technical means, in the past, the financial management was mainly based on post inspection accounting, and the financial changes were involved early and the control was relatively lacking. In the face of increasingly detailed cross department financial data, the traditional financial management audit mode needs a lot of manpower in the aspects of evidence query, audit judgment and financial budget. The distributed bookkeeping technology and weak centralization of blockchain technology make it automatic and efficient to record financial transaction data after the verification of blockchain network nodes There are complete and remarkable characteristics in time and space. The hospital financial system built by blockchain technology can collect all kinds of effective financial data in real time and conct dynamic analysis according to the smart contract, which greatly improves the efficiency and precision of hospital financial management_ To ensure the safety of financial management in all departments of the hospital
4. Strengthen financial budget management
traditional hospital financial management is usually based on the past frequency of equipment use and the range of drug use. Some hospital financial managers think that it is only necessary to allocate resources according to the requirements of higher authorities, which leads to the intelligent financial system can not be well implemented in the hospital financial budget management system. The smart contract part in the blockchain technology can effectively enhance the control of hospital funds. The so-called smart contract is a program that automatically processes assets based on blockchain technology according to preset conditions. Blockchain technology is characterized by significant independence from the participation of third parties, so it is only necessary to input the funds allocated to the budget into the blockchain from the source, and the traceability and whereabouts of the budget funds can be presented clearly and transparently [7]. Smart contract mechanism can ensure the reasonable use of budget funds, and obviously eliminate the illegal use. In addition, blockchain technology can monitor the budget execution in real time and give early warning to the budget data changes with different usage. With the help of the self settlement (clearing) function in the smart contract, the transaction settlement (clearing) can be automated and fast, which can significantly rece the error rate of financial personnel and improve the budget implementation effect
source: Source: Friends of Accountants (issue 03, 2021)
We mainly apply blockchain technology to the field of electronic data distributed storage, including contract storage, e-mail storage, file storage, structured data storage, etc
the specific forms of electronic evidence in judicial practice are becoming more and more diversified, and the frequency and amount of electronic data are increasing significantly. Different types of electronic evidence have different forms of formation, but they are easy to die out, easy to tamper with, and highly dependent on technology. Compared with traditional physical evidence, it is more difficult to determine the authenticity, legitimacy, and relevance of electronic evidence through judicial review
in the whole life cycle of the generation, collection, transmission and storage of electronic data, blockchain technology can be used to protect electronic data, prevent tampering, and leave traces of data operation, so as to provide effective means for relevant institutions to review. Using blockchain technology to preserve electronic evidence, the electronic data that needs to be preserved is recorded in the form of transaction, stamped with time stamp, and recorded in the block, so as to complete the process of data preservation and preservation. In the process of data storage, multiple participant nodes witness together and maintain a distributed ledger, which greatly reces the possibility of data loss, tampering and attack. The combination of blockchain and electronic data storage can rece the cost of electronic data storage, facilitate electronic data collection and evidence identification, and improve the litigation efficiency in the field of judicial storage
blockchain 1.0 mainly refers to bitcoin. Blockchain 2.0 extends to all assets, while blockchain 3.0 goes beyond currency, finance, even commerce, and all areas of our lives, including politics, social relations, ecation, medical care, etc. According to the prediction and conception of people in the instry, the era of blockchain 3.0 will be realized in the next five years. At that time, blockchain will be recognized and accepted by all the public like the Internet, thus completely subverting our lives
McKinsey has submitted a technical report on blockchain to the Federal Insurance Advisory Committee of the United States. The report calls 2009-2016 the "Dark Age" and believes that all blockchain solutions ring this period are based on bitcoin, and the new era of blockchain will begin in 2016. At that time, the application of blockchain will become unprecedented. Applying an original sentence in McKinsey report: Based on the current development speed of blockchain, we believe that blockchain solutions may realize their full potential in the next five years.
