Blockchain medical record sharing

3. Of course, this is OK
first of all, blockchain is actually a centralized database or a decentralized database, and all technical units are for better maintenance of the public database. Each node keeps a of data independently. Consensus algorithm is used to achieve the data consistency of the node's account book, and cryptographic algorithm is used to ensure the data can not be tampered, and the data can not be tampered and the security of data sending and receiving; Through the script system, the expression scope of account data is expanded
secondly, financial sharing center involves a large amount of financial data. We can combine the technical characteristics of blockchain with Financial Sharing Center. Next, I will combine the technical characteristics of blockchain with Financial Sharing Center
① distributed storage is a distributed database of the blockchain, and each node keeps a of the data independently. If this is combined with the Financial Sharing Center, The users who can join the "financial data on the chain" in the financial sharing chain are equivalent to the "nodes" in the blockchain network, and each user can keep a of the financial data separately, so as to achieve the purpose of sharing
② tampering is not allowed. A very important feature of blockchain technology is that the data cannot be tampered, To ensure the security of a data in the Financial Sharing Center, we need to consider the security as long as the financial data is involved.
of course, before doing the Financial Sharing Center, you must determine your specific needs, if necessary, first write a framework of the whole project, and then find a formal blockchain development team according to the needs, To help you develop this "Financial Sharing Center", we must pay attention to that before formal cooperation is reached, don't disclose the information of your project casually, in order to prevent the same kind from being copied.

4. With the emergence of cryptocurrencies such as bitcoin, this time tested financial framework is likely to be changed. With the power of blockchain and the rise of this new data based currency, the whole concept of money has been reversed. Although our current understanding of money has changed over the past few decades, thanks to credit cards and fiat money, cryptocurrency is the logical next step in this evolution
this is understandable for accountants, but what does it mean for entrepreneurs? Well, anyone interested in starting or maintaining a successful business will need a competent accounting team. With the change of financial environment, the experience and insight that business accountants need will also change. Understanding this coming paradigm shift can better help entrepreneurs prove their organization in the future, and may even help them save money on business expenses related to accounting
overview of bitcoin modern accounting
the current financial paradigm regards bitcoin, Ethernet and all other cryptocurrencies as assets. In the United States, for example, any form of cryptocurrency is considered property, not money. Although the IRS recognizes that bitcoin can be used as a "medium of exchange", bitcoin is not classified as currency because it usually has the function of "unit of account and value storage space"
as a result of this classification, changes in the value and quantity of cryptocurrencies are taxed as capital gains or losses. Mining or buying a lot of bitcoin will lead to capital increase, which will make bitcoin subject to capital gains tax. The same is true for trading or selling cryptocurrency, as these events are treated as taxable capital gains and losses. Therefore, the accounting treatment of the holding amount of the comparative currency or other high-end stocks is roughly the same as that of other forms of equity (such as real estate or stocks)
forecast of bitcoin and accounting in the future
e to the legitimacy of blockchain and cryptocurrency in the financial sector, the accounting nature of bitcoin and other advanced currencies will also change. Although many potential changes are too far away to be accurately predicted, one aspect of accounting is bound to change dramatically, which will inevitably affect all entrepreneurs and business organizations. This aspect refers to audit
here's how blockchain and cryptocurrency are used to brutally disrupt the audit process, and what it means for companies that employ auditors? Because bitcoin is currently classified as the property that must pay capital gains tax, the audit method of its value is called immediate forensics analysis. However, the immediate verifiability of blockchain technology makes this audit method obsolete

when you track these changes and developments, please discuss with your organization's accountant or financial advisor. They can help you understand the further meaning of these events; In some cases, they can even show you what actions you can take to deal with these events, so as to increase your profits, rece your costs, and open up a new development path for your enterprise
on the other hand, if your accountants and auditors are at a loss about your research, consider updating your finance team.

5. In view of the security characteristics and shortcomings of the existing blockchain technology, we need to build a security system around the physical, data, application system, encryption, risk control and other aspects to improve the security performance of the blockchain system as a whole
1. Physical security
the network and host running the blockchain system should be in a protected environment. According to the regulatory requirements of specific business, the protection measures can be used to protect the physical network and host by means of VPN, firewall, physical isolation, etc
2. Data security
in principle, the data exchange between nodes of the blockchain should not be transmitted in clear text. For example, asymmetric encryption can be used to negotiate key, and symmetric encryption algorithm can be used to encrypt and decrypt data. The data provider should also strictly evaluate the sensitivity and security level of the data, decide whether to send the data to the blockchain, whether to desensitize the data, and adopt strict access control measures
3. Application system security
application system security needs to start from the aspects of identity authentication, authority system, transaction rules, anti fraud strategy, etc.
relevant personnel, transaction nodes and transaction data involved in application operation should be controlled in advance and auditable afterwards. Taking financial blockchain as an example, consensus algorithm with stronger fault tolerance, anti fraud and higher performance can be adopted to avoid joint fraud of some nodes
4. Key security
to encrypt the communication data between the blockchain nodes and the key to encrypt the data stored on the blockchain nodes, the plaintext should not exist on the same node, and the private key should be properly saved by the encryption machine. When the key is lost or leaked, the system can identify the relevant records of the original key, such as account control, communication encryption, data storage encryption, etc., and implement response measures to make the original key invalid. The key should also be managed strictly in the life cycle, and should not be permanently valid. It needs to be replaced after reaching a certain time cycle
5. Risk control mechanism
there should be careful detection measures for the network layer, host operation, data access of application system, transaction frequency and other dimensions of the system. For any suspicious operation, alarm, record and verification should be carried out. If illegal operation is found, loss assessment should be carried out, remedial measures should be taken at the technical and business levels, and security measures should be strengthened, And trace the source of illegal operation to prevent further attacks

Article source: white paper on blockchain technology and application development in China

6. Generally speaking, the essence of blockchain should be weak control, sub center, autonomous mechanism, network architecture and coupling connection. The essence of blockchain should be a new social structure in the era of information society, which is completely different from the instrial society. The five core points of blockchain are in common with sharing economy to some extent. The essence of the sharing economy is to abandon the old development mechanism, no longer focus on concentration, and instead use the decentralized social resources in a point-to-point way to let the participants participate in, and pay and benefit in different ways
the two Internet hotspots, blockchain and sharing economy, happen to have sufficient "cooperation space". With the development from theory to practice, the instry has made a lot of bold explorations about the two, and even some challenges to the traditional business model have emerged. In this way, the sharing economy with blockchain will be a new business model and a new subversion of interpersonal relationship. I plan to invest in the blockchain instry. After all, in the Internet era, I searched Guangzhou Xuanling Technology Co., Ltd. on the Internet and looked at the webpage. They are a company engaged in software blockchain intelligent contract development. There are many development cases, and the team is also strong.

7. There are many blockchain projects, and few of them have practical applications. The development of blockchain is still in the early stage of development! If you want to engage, you'd better understand the strength of the project party and the team's belief and attitude towards the blockchain
I learned about a project on the Internet before: akso health chain, which is engaged in blockchain health care project! Committed to solving the problem of health care data island! You can understand and pay attention to it (for reference only, no investment suggestions, thank you)

8. A lot! Finance, project application and human resource management are all resources that can be shared. Please pay attention to "SMIC blockchain service platform" for details

9.

Layer 2 is concerned with the protocols on the chain and off the chain. It is mainly responsible for the message passing, intelligent contract programming and application related functions on the chain and off the chain. That is, the auxiliary framework or protocol built on the existing blockchain system (layer1). If we use the analogy of legal structure, layer1 is like the constitution, which is the basis of all laws. The formulation of laws cannot violate the constitution

by layer 2 protocol, the "state generation" of blockchain transactions can be independent of layer 1, so these protocols can also be called "off chain" expansion schemes. One of the main advantages of using the offline expansion scheme is that it can rece the limitations of layer1 and does not need to change the protocol of the blockchain itself. The layer2 expansion scheme achieves high-throughput state generation without sacrificing the security of the blockchain network

extended data

application direction:

1. Payment: for example, in terms of time, traditional cross-border remittance takes 10 minutes or several days, while blockchain cross-border remittance, e to decentralization, can achieve remittance in seconds. In terms of convenience, traditional cross-border remittance needs to wait until the next day after 19:00, while blockchain cross-border remittance only needs one mobile phone to realize all-weather remittance

2. Sharing medical records: the medical data blockchain sharing platform can achieve many application scenarios. Patient history data and other information can be linked, and medical history and image data can be viewed by personnel entering the system. These medical data can also be used for modeling and machine learning