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Mainframe and blockchain
Publish: 2021-04-24 00:57:13
1.
1. blockchain: it is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. The so-called consensus mechanism is a mathematical algorithm to establish trust and obtain interests between different nodes in the blockchain system
blockchain is an important concept of bitcoin. According to the 2014-2016 global bitcoin Development Research Report issued by the Internet Finance Laboratory of Wukou School of finance, Tsinghua University and Sina Technology, blockchain is the underlying technology and infrastructure of bitcoin [2]. In essence, it is a decentralized database, as well as the underlying technology of bitcoin. Blockchain is a series of data blocks generated by cryptography. Each data block contains the information of a bitcoin network transaction, which is used to verify the validity of the information (anti-counterfeiting) and generate the next block
2. Big data: refers to the data set that cannot be captured, managed and processed by conventional software tools within a certain period of time. It is a massive, high growth rate and diversified information asset that needs new processing mode to have stronger decision-making power, insight and discovery power and process optimization ability
2. Blockchain technology brings new growth possibilities to these fields. For example, in the insurance field, combined with blockchain technology, we can see growth opportunities for reinsurance in the future; In the field of health care, the integration of medical data and file management can also be realized through distributed ledger technology; The combination of supply chain and blockchain technology will create more financing opportunities
all of the above are potential application fields of blockchain technology, but if the first large-scale application field of blockchain technology, I think it will be in the fields of insurance and health care
because the current data in these two fields are very scattered and chaotic, they can be integrated systematically through blockchain technology. In the future, a lot of business opportunities can be found after specific analysis of these data
some excellent digital currencies have begun to appear in China, such as Puyin, a tea standard digital currency launched by Puyin group. Puyin is a high-quality Tibetan tea asset that is stored, identified, evaluated and authorized by three parties, and a standard digital currency that is issued through encryption and digitization.
all of the above are potential application fields of blockchain technology, but if the first large-scale application field of blockchain technology, I think it will be in the fields of insurance and health care
because the current data in these two fields are very scattered and chaotic, they can be integrated systematically through blockchain technology. In the future, a lot of business opportunities can be found after specific analysis of these data
some excellent digital currencies have begun to appear in China, such as Puyin, a tea standard digital currency launched by Puyin group. Puyin is a high-quality Tibetan tea asset that is stored, identified, evaluated and authorized by three parties, and a standard digital currency that is issued through encryption and digitization.
3. Chongqing jinwowo analysis: with its trustworthiness, security and non tamperability, blockchain liberates more data and promotes the massive growth of data.
4. The official way of purchase will be announced, including player cloud, extreme route, Xiaomi and 360. At present, I am paying attention to the recent jCG K3 blockchain route. Compared with the playing method of digital currency, the revenue of shared CDN business is stable, which is linked to the broadband upload speed, and mining is converted into currency. Compared with the old mining area, mining in the new mining area will be much easier, mainly because of the old brand and high reliability. But we also need to consider the risk, it depends on indivial decision-making.
5. The relationship between blockchain and big data storage is as follows:
first, data security: blockchain makes data flow "at ease"
with its trustworthiness, security and non tamperability, blockchain liberates more data. A typical case is used to illustrate how blockchain promotes the generation of big data for gene sequencing. Blockchain sequencing can use the private key to limit access rights, so as to avoid the legal restrictions on indivial access to gene data, and use distributed computing resources to complete the sequencing service at low cost. The security of blockchain makes sequencing an instrialized solution, realizing global scale sequencing, thus promoting the massive growth of data< Second, data open sharing: blockchain guarantees data privacy
the government has a large number of high-density and high-value data, such as medical data, population data, etc. The opening of government data is the general trend, which will have an inestimable impetus to the development of the whole economy and society. However, the main difficulty and challenge of data opening is how to open data while protecting personal privacy. Data desensitization technology based on blockchain can ensure data privacy and provide a solution for data opening under privacy protection. Data desensitization technology mainly uses hash processing and other encryption algorithms. For example, enigma based on blockchain technology can protect the privacy of data and eliminate information security problems in data sharing by computing data without accessing the original data. For example, employees of a company can safely open the path to access their salary information and jointly calculate the average salary within the group. Each participant can know his or her relative position in the group, but he or she knows nothing about the salaries of other members< The schematic diagram of data hash desensitization processing
3. Data storage: blockchain is a kind of database storage technology that can not be tampered with, full history, strong endorsement
blockchain technology, through all nodes in the network participate in the calculation together, and verify the authenticity of their information to achieve the consensus of the whole network, it can be said that blockchain technology is a specific database technology. So far, our big data is still in a very basic stage. The data based on the consensus of the whole network and the reliable blockchain data are tamperable and historical, which makes the quality of the data gain unprecedented strong trust endorsement, and also makes the development of the database enter a new era< Data analysis: blockchain ensures data security
data analysis is the core of realizing data value. In data analysis, how to effectively protect personal privacy and prevent core data leakage has become the primary consideration. For example, with the application of fingerprint data analysis and the popularization of genetic data detection and analysis, more and more people worry that once personal health data is leaked, it may lead to serious consequences. Blockchain technology can prevent this kind of situation through multi signature private key, encryption technology and secure multi-party computing technology. When the data is hashed and placed on the blockchain, the use of digital signature technology can enable those authorized people to access the data. The private key not only ensures the privacy of data, but also can be shared with authorized research institutions. The data is stored on the decentralized blockchain and analyzed without accessing the original data. It can not only protect the privacy of the data, but also provide it to the global scientific research institutions and doctors for sharing. As the basic health database of all mankind, it will bring great convenience to solve the sudden and difficult diseases in the future
v. data circulation: blockchain protects the rights and interests related to data
for valuable data assets of indivials or institutions, blockchain can be used to register them. Transaction records are recognized, transparent and traceable throughout the network, making clear the source, ownership, use right and circulation path of big data assets, which is of great value to data asset transaction
on the one hand, blockchain can break the threat of intermediary ing data, which is concive to the establishment of a trusted data asset trading environment. Data is a very special commodity, which is essentially different from ordinary commodities. It is mainly characterized by unclear ownership and "being owned after seeing and ing", which also determines that the traditional commodity intermediary transaction method can not meet the needs of data sharing, exchange and transaction. Because the intermediary center has the conditions and the ability to and save all the flowing data, it is extremely unfair to the data procers. This threat can not be eliminated only by commitment, and the existence of this threat has become a huge obstacle to the flow of data. Based on the decentralized blockchain, it can break the threat of ing data in the intermediary center and protect the legitimate rights and interests of data owners
on the other hand, blockchain provides a traceable path, which can effectively solve the problem of data right confirmation. Through multiple nodes participating in the calculation in the network, blockchain can participate in the calculation and recording of data together, and verify the effectiveness of their information. It can not only carry out information anti-counterfeiting, but also provide a traceable path. The transaction information of each block is strung together to form a complete detailed list of transactions. The context of each transaction is very clear and transparent. In addition, when people have doubts about the "value" of a block, they can easily trace back the historical transaction records, and then judge whether the value is correct, and identify whether the value has been tampered or recorded incorrectly
with the protection of blockchain, big data will naturally become more active
the tokens of crowdfunding projects on coin Ying China platform are all developed based on blockchain technology, and relevant information will be recorded on the blockchain.
first, data security: blockchain makes data flow "at ease"
with its trustworthiness, security and non tamperability, blockchain liberates more data. A typical case is used to illustrate how blockchain promotes the generation of big data for gene sequencing. Blockchain sequencing can use the private key to limit access rights, so as to avoid the legal restrictions on indivial access to gene data, and use distributed computing resources to complete the sequencing service at low cost. The security of blockchain makes sequencing an instrialized solution, realizing global scale sequencing, thus promoting the massive growth of data< Second, data open sharing: blockchain guarantees data privacy
the government has a large number of high-density and high-value data, such as medical data, population data, etc. The opening of government data is the general trend, which will have an inestimable impetus to the development of the whole economy and society. However, the main difficulty and challenge of data opening is how to open data while protecting personal privacy. Data desensitization technology based on blockchain can ensure data privacy and provide a solution for data opening under privacy protection. Data desensitization technology mainly uses hash processing and other encryption algorithms. For example, enigma based on blockchain technology can protect the privacy of data and eliminate information security problems in data sharing by computing data without accessing the original data. For example, employees of a company can safely open the path to access their salary information and jointly calculate the average salary within the group. Each participant can know his or her relative position in the group, but he or she knows nothing about the salaries of other members< The schematic diagram of data hash desensitization processing
3. Data storage: blockchain is a kind of database storage technology that can not be tampered with, full history, strong endorsement
blockchain technology, through all nodes in the network participate in the calculation together, and verify the authenticity of their information to achieve the consensus of the whole network, it can be said that blockchain technology is a specific database technology. So far, our big data is still in a very basic stage. The data based on the consensus of the whole network and the reliable blockchain data are tamperable and historical, which makes the quality of the data gain unprecedented strong trust endorsement, and also makes the development of the database enter a new era< Data analysis: blockchain ensures data security
data analysis is the core of realizing data value. In data analysis, how to effectively protect personal privacy and prevent core data leakage has become the primary consideration. For example, with the application of fingerprint data analysis and the popularization of genetic data detection and analysis, more and more people worry that once personal health data is leaked, it may lead to serious consequences. Blockchain technology can prevent this kind of situation through multi signature private key, encryption technology and secure multi-party computing technology. When the data is hashed and placed on the blockchain, the use of digital signature technology can enable those authorized people to access the data. The private key not only ensures the privacy of data, but also can be shared with authorized research institutions. The data is stored on the decentralized blockchain and analyzed without accessing the original data. It can not only protect the privacy of the data, but also provide it to the global scientific research institutions and doctors for sharing. As the basic health database of all mankind, it will bring great convenience to solve the sudden and difficult diseases in the future
v. data circulation: blockchain protects the rights and interests related to data
for valuable data assets of indivials or institutions, blockchain can be used to register them. Transaction records are recognized, transparent and traceable throughout the network, making clear the source, ownership, use right and circulation path of big data assets, which is of great value to data asset transaction
on the one hand, blockchain can break the threat of intermediary ing data, which is concive to the establishment of a trusted data asset trading environment. Data is a very special commodity, which is essentially different from ordinary commodities. It is mainly characterized by unclear ownership and "being owned after seeing and ing", which also determines that the traditional commodity intermediary transaction method can not meet the needs of data sharing, exchange and transaction. Because the intermediary center has the conditions and the ability to and save all the flowing data, it is extremely unfair to the data procers. This threat can not be eliminated only by commitment, and the existence of this threat has become a huge obstacle to the flow of data. Based on the decentralized blockchain, it can break the threat of ing data in the intermediary center and protect the legitimate rights and interests of data owners
on the other hand, blockchain provides a traceable path, which can effectively solve the problem of data right confirmation. Through multiple nodes participating in the calculation in the network, blockchain can participate in the calculation and recording of data together, and verify the effectiveness of their information. It can not only carry out information anti-counterfeiting, but also provide a traceable path. The transaction information of each block is strung together to form a complete detailed list of transactions. The context of each transaction is very clear and transparent. In addition, when people have doubts about the "value" of a block, they can easily trace back the historical transaction records, and then judge whether the value is correct, and identify whether the value has been tampered or recorded incorrectly
with the protection of blockchain, big data will naturally become more active
the tokens of crowdfunding projects on coin Ying China platform are all developed based on blockchain technology, and relevant information will be recorded on the blockchain.
6. At present, the exchange rate between vnd and RMB is about 2600:1. You can exchange the money for 7 yuan and 23 cents. The price of a bowl of beef powder is not enough in some places..
7. Supply and demand
when compared with other virtual currencies, bitcoin always mentions "21 million fixed output". In the early years, bitcoin had not been exposed to investors in a large area. It proced a lot and g a lot, but there was no demand. But now purchase bitcoin, the price is expensive, the output is small, the demand is big
we believe that when there is an imbalance between supply and demand, the price of goods will be affected. Influenced by the policy, many bitcoin holders are now keeping a wait-and-see attitude. The decrease of bitcoin in circulation in the market and the increasing demand for bitcoin in the market are bound to push the price up, but in fact, it will not be the investment speculators who come into the market at this high level who will benefit in the end
popularization of regional chain
the report released by professional institutions mentioned the problem of regional chain technology. The report shows that by 2027, the global investment value of regional chain technology will reach 300 billion to 400 billion US dollars. And the regional chain as an infrastructure development, will be applied to more and more scenarios
at that time, whether the popularity of regional chain will raise the price of bitcoin is also full of uncertainty
investor confidence remains unchanged
although many institutions and financial giants are short of bitcoin, investors are still confident in the future value of bitcoin. After all, in history, is there any trading proct that can soar 7.54 million times in eight years
professional agency analysts said that 10 years ago, the impact of the financial crisis had so far failed to get rid of the shadow of many countries, and the share price bubble continued to expand. Investors would worry whether the original financial system would collapse again. Bitcoin, which has a strong performance, will attract more investors with capital inflows, thus driving up prices. In a way, bitcoin is already a safe haven
although the trading of bitcoin was suspended by China in September 2017, bitcoin surged by more than 233% after de Sinicization< In November 2017, bitcoin began to hard bifurcate, that is to say, dividing the regional chain into two, which is equivalent to doubling the issue of bitcoin, which means that the value of bitcoin will be diluted. Affected by the impending start of hard bifurcations, bitcoin started on November 9, 2017 and has been in a state of decline for four days
the suspension of the 2x fork originally scheled for November 16, 2017 has eased the anxiety of the whole bitcoin instry chain over capacity expansion, and the market is a little relieved of the possible collapse crisis caused by the fork.
when compared with other virtual currencies, bitcoin always mentions "21 million fixed output". In the early years, bitcoin had not been exposed to investors in a large area. It proced a lot and g a lot, but there was no demand. But now purchase bitcoin, the price is expensive, the output is small, the demand is big
we believe that when there is an imbalance between supply and demand, the price of goods will be affected. Influenced by the policy, many bitcoin holders are now keeping a wait-and-see attitude. The decrease of bitcoin in circulation in the market and the increasing demand for bitcoin in the market are bound to push the price up, but in fact, it will not be the investment speculators who come into the market at this high level who will benefit in the end
popularization of regional chain
the report released by professional institutions mentioned the problem of regional chain technology. The report shows that by 2027, the global investment value of regional chain technology will reach 300 billion to 400 billion US dollars. And the regional chain as an infrastructure development, will be applied to more and more scenarios
at that time, whether the popularity of regional chain will raise the price of bitcoin is also full of uncertainty
investor confidence remains unchanged
although many institutions and financial giants are short of bitcoin, investors are still confident in the future value of bitcoin. After all, in history, is there any trading proct that can soar 7.54 million times in eight years
professional agency analysts said that 10 years ago, the impact of the financial crisis had so far failed to get rid of the shadow of many countries, and the share price bubble continued to expand. Investors would worry whether the original financial system would collapse again. Bitcoin, which has a strong performance, will attract more investors with capital inflows, thus driving up prices. In a way, bitcoin is already a safe haven
although the trading of bitcoin was suspended by China in September 2017, bitcoin surged by more than 233% after de Sinicization< In November 2017, bitcoin began to hard bifurcate, that is to say, dividing the regional chain into two, which is equivalent to doubling the issue of bitcoin, which means that the value of bitcoin will be diluted. Affected by the impending start of hard bifurcations, bitcoin started on November 9, 2017 and has been in a state of decline for four days
the suspension of the 2x fork originally scheled for November 16, 2017 has eased the anxiety of the whole bitcoin instry chain over capacity expansion, and the market is a little relieved of the possible collapse crisis caused by the fork.
8. Big data, artificial intelligence (AI) and blockchain are hot topics at present. These emerging technologies will change our future life all the time. So, for HR practitioners, what impact will these emerging technologies have on HR
big data
big data refers to the data set that can not be captured, managed and processed by conventional software tools within a certain period of time. It is a massive, high growth rate and diversified information asset that needs new processing mode to have stronger decision-making power, insight and process optimization ability
in the past, when recruiting personnel, it was first to establish a competency model based on theory. This model is based on certain experience, logic and hypothesis, and does not test whether it is really correct and effective in practice, but pays more attention to the logical inference before and after. However, the core of big data is to speculate what may happen in the future through massive data, rather than establishing causality. It comes from the summary of past practice. Google can be said to be the pioneer of employing big data technology. Google first let all employees complete a questionnaire with hundreds of questions, and then use big data analysis to get a set of mathematical model, so as to find the right talents according to the mathematical model. In this way, Google will not only judge the ability of job seekers based on their diplomas and grades, but also find those job seekers with great potential who are not good at school and grades
at present, big data is used in HR, mainly to digitize the behavior characteristics of the company's existing personnel, and to establish the competency model through big data and algorithms. The difficulty of application lies in how to conct data and how to establish mathematical model<
artificial intelligence, abbreviated as AI, is to study the law of human intelligence activities, construct artificial systems with certain intelligence, and study how to make the computer complete the work that needs human intelligence in the past, that is, to study the basic theory of how to use computer software and hardware to simulate some human intelligent behaviors Methods and techniques. For example, our common intelligent search is a kind of AI application
predictive algorithms and machine learning, as a tool to identify the best candidates, are emerging rapidly, and many AI + recruitment companies are emerging. By using AI to quickly evaluate the personal quality of job seekers, through the investigation of language preference, micro action, psychological emotion and social media language, the conclusion is drawn. You can also use AI tools to filter resumes and search in the database to save recruiters' time and sell jobs to qualified candidates automatically. AI recruitment software can be used in the early stage of recruitment to narrow the range of candidates. In the late stage of recruitment, employers often choose face-to-face communication and artificial judgment. This software improves the efficiency of recruitment and reces the bias of screening
at present, the application of AI in HR is mainly in the external recruitment software services, and the internal establishment of recruitment based on AI costs a lot
blockchain
blockchain is an encrypted general ledger of digital records, which are organized into a group of data, called "blocks", and distributed on a network. These blocks are located on the server and are called "nodes" that are chained together. Whenever a new transaction occurs, the blockchain will be authenticated on the network. Therefore, the authentication of each node is required to add the block to the chain. Blockchain creates trust because a of the chain showing each transaction is held by the entire network. It's a way to distribute data, only with the people you want to share it with, and the data can only be modified or deleted by its owner. It's encrypted, and it's almost impossible to change unless you're the validation owner of the data
the immutability and openness of information in blockchain make this data storage method very reliable. In the past, we need to spend a lot of time to verify the authenticity of ecation certificates, the effectiveness of skills, and even need to verify the relevant information through external background investigation agencies. Similarly, job seekers are reluctant to disclose personal information for fear of disclosure. Blockchain technology can help recruiters verify candidates' certificates in a highly secure way, rece the possibility of certificate being changed or forged, and effectively protect job seekers' information. In this way, we will rece the time of information verification and improve the efficiency of recruitment
at present, the application of blockchain is only a creation and conception. It requires a large number of people and organizations to participate in it. Only in this way can it be applied in the field of HR in the future.
big data
big data refers to the data set that can not be captured, managed and processed by conventional software tools within a certain period of time. It is a massive, high growth rate and diversified information asset that needs new processing mode to have stronger decision-making power, insight and process optimization ability
in the past, when recruiting personnel, it was first to establish a competency model based on theory. This model is based on certain experience, logic and hypothesis, and does not test whether it is really correct and effective in practice, but pays more attention to the logical inference before and after. However, the core of big data is to speculate what may happen in the future through massive data, rather than establishing causality. It comes from the summary of past practice. Google can be said to be the pioneer of employing big data technology. Google first let all employees complete a questionnaire with hundreds of questions, and then use big data analysis to get a set of mathematical model, so as to find the right talents according to the mathematical model. In this way, Google will not only judge the ability of job seekers based on their diplomas and grades, but also find those job seekers with great potential who are not good at school and grades
at present, big data is used in HR, mainly to digitize the behavior characteristics of the company's existing personnel, and to establish the competency model through big data and algorithms. The difficulty of application lies in how to conct data and how to establish mathematical model<
artificial intelligence, abbreviated as AI, is to study the law of human intelligence activities, construct artificial systems with certain intelligence, and study how to make the computer complete the work that needs human intelligence in the past, that is, to study the basic theory of how to use computer software and hardware to simulate some human intelligent behaviors Methods and techniques. For example, our common intelligent search is a kind of AI application
predictive algorithms and machine learning, as a tool to identify the best candidates, are emerging rapidly, and many AI + recruitment companies are emerging. By using AI to quickly evaluate the personal quality of job seekers, through the investigation of language preference, micro action, psychological emotion and social media language, the conclusion is drawn. You can also use AI tools to filter resumes and search in the database to save recruiters' time and sell jobs to qualified candidates automatically. AI recruitment software can be used in the early stage of recruitment to narrow the range of candidates. In the late stage of recruitment, employers often choose face-to-face communication and artificial judgment. This software improves the efficiency of recruitment and reces the bias of screening
at present, the application of AI in HR is mainly in the external recruitment software services, and the internal establishment of recruitment based on AI costs a lot
blockchain
blockchain is an encrypted general ledger of digital records, which are organized into a group of data, called "blocks", and distributed on a network. These blocks are located on the server and are called "nodes" that are chained together. Whenever a new transaction occurs, the blockchain will be authenticated on the network. Therefore, the authentication of each node is required to add the block to the chain. Blockchain creates trust because a of the chain showing each transaction is held by the entire network. It's a way to distribute data, only with the people you want to share it with, and the data can only be modified or deleted by its owner. It's encrypted, and it's almost impossible to change unless you're the validation owner of the data
the immutability and openness of information in blockchain make this data storage method very reliable. In the past, we need to spend a lot of time to verify the authenticity of ecation certificates, the effectiveness of skills, and even need to verify the relevant information through external background investigation agencies. Similarly, job seekers are reluctant to disclose personal information for fear of disclosure. Blockchain technology can help recruiters verify candidates' certificates in a highly secure way, rece the possibility of certificate being changed or forged, and effectively protect job seekers' information. In this way, we will rece the time of information verification and improve the efficiency of recruitment
at present, the application of blockchain is only a creation and conception. It requires a large number of people and organizations to participate in it. Only in this way can it be applied in the field of HR in the future.
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