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Blockchain note issue 9
Publish: 2021-05-15 15:11:52
1. blockchain has developed in five stages
1. Germination stage: the real germination stage of blockchain was from 2007 to 2009. In 2008, a Japanese American with the pseudonym of Nakamoto first expounded a new fantasy report on electronic money in the form of a synonym on the cryptography discussion group, and bitcoin came out. As early as 2007, Nakamoto began to explore a series of new technologies to create a new currency. On October 31, 2008, bitcoin white paper was released, and on January 3, 2009, bitcoin system officially began to operate
the main technologies supporting bitcoin system include hash function, distributed ledger, blockchain and asymmetric encryption; It can be seen that these technologies build the initial version of the blockchain, and it can also be said that the blockchain is the underlying technology of bitcoin. During the three years from 2007 to 2009, bitcoin was an experimental stage in which a very small number of people participated, and the real commercial activities had not really started
2. "Geek" niche stage: here, "geek" refers to people who are crazy about Internet technology and take technological innovation as fashion and life. On February 6, 2010, the first exchange of bitcoin appeared. On May 22 of the same year, someone bought two hamburgers with 10000 bitcoins. On July 17 of the same year, the exchange Mt. GOx was established, marking the official inflow of bitcoin into the market. Nevertheless, the only people who can really understand and enter the market to participate in bitcoin trading are geeks who are keen on Internet technology. They discuss bitcoin technology on the forum, mine for bitcoin on their own computers, and then buy and sell bitcoin on Mt. GOx. Now these geeks have become billionaires
3. Market brewing stage: the price of bitcoin was $13 at the beginning of 2013, but on March 18 of the same year, the government of Cyprus closed the bank and stock market e to the financial crisis, which made the price of bitcoin soar, and the highest price rose to $266 in April. On August 20 of the same year, the German government confirmed the currency status of bitcoin. On October 14, China network announced the opening of bitcoin payment channel. In November, the US Senate hearing also confirmed the legitimacy of bitcoin. On November 19, the price of bitcoin rose to US $1242, forming a new high. Nevertheless, the foundation for blockchain to enter the mainstream social economy is not yet available, and the soaring price of bitcoin is only e to over optimistic expectations. The containment of China's banking system, the collapse of Mt. GOx and other events made the price of bitcoin continue to fall. At the beginning of 2015, the price of bitcoin has dropped below $200. From 2013 to the beginning of 2015, the public began to understand bitcoin and blockchain
4. The mainstream period of blockchain: on June 23, 2016, the United Kingdom left the European Union, the fifth nuclear test of North Korea in September, Trump's election in November and other events, the uncertainty of the world's mainstream economy led to the recovery of bitcoin with the function of risk aversion. The market demand was large, and the increase of trading volume made the price of bitcoin soar from $400 in 2016 to $20000 in 2017, The wealth effect of bitcoin and the transaction overflow caused by network congestion of bitcoin have led to the outbreak of other series of virtual currencies, as well as a variety of blockchain applications, resulting in the emergence of a large number of blockchain assets that are 100 times, even 1000 times and 10000 times, which has aroused the crazy pursuit of the world, Subsequently, the Chicago Mercantile Exchange launched bitcoin futures trading, marking that bitcoin has officially entered the mainstream investment proct series, and bitcoin and blockchain have entered the global attention
5. Instry landing stage: after the market frenzy in 2017, the virtual currency and blockchain have been adjusted in terms of market, supervision, cognition, etc. in 2018, returning to rationality. In 2017, many blockchain projects that follow the blockchain technology will graally die out with the cooling of the market, and the projects with real blockchain applications will be initially implemented. 2018 is not only the first year of the blockchain, but also a gold rush period for the blockchain. After the waves wash away the sand, what remains is relatively good gold
from the perspective of the history of blockchain development, blockchain technology is not yet mature and is currently in the growth period. The specific practical application of blockchain is only used in the financial field. It still needs a long way to go to apply blockchain from other instries. However, we should grasp the trend of blockchain and actively learn from the new field of blockchain.
1. Germination stage: the real germination stage of blockchain was from 2007 to 2009. In 2008, a Japanese American with the pseudonym of Nakamoto first expounded a new fantasy report on electronic money in the form of a synonym on the cryptography discussion group, and bitcoin came out. As early as 2007, Nakamoto began to explore a series of new technologies to create a new currency. On October 31, 2008, bitcoin white paper was released, and on January 3, 2009, bitcoin system officially began to operate
the main technologies supporting bitcoin system include hash function, distributed ledger, blockchain and asymmetric encryption; It can be seen that these technologies build the initial version of the blockchain, and it can also be said that the blockchain is the underlying technology of bitcoin. During the three years from 2007 to 2009, bitcoin was an experimental stage in which a very small number of people participated, and the real commercial activities had not really started
2. "Geek" niche stage: here, "geek" refers to people who are crazy about Internet technology and take technological innovation as fashion and life. On February 6, 2010, the first exchange of bitcoin appeared. On May 22 of the same year, someone bought two hamburgers with 10000 bitcoins. On July 17 of the same year, the exchange Mt. GOx was established, marking the official inflow of bitcoin into the market. Nevertheless, the only people who can really understand and enter the market to participate in bitcoin trading are geeks who are keen on Internet technology. They discuss bitcoin technology on the forum, mine for bitcoin on their own computers, and then buy and sell bitcoin on Mt. GOx. Now these geeks have become billionaires
3. Market brewing stage: the price of bitcoin was $13 at the beginning of 2013, but on March 18 of the same year, the government of Cyprus closed the bank and stock market e to the financial crisis, which made the price of bitcoin soar, and the highest price rose to $266 in April. On August 20 of the same year, the German government confirmed the currency status of bitcoin. On October 14, China network announced the opening of bitcoin payment channel. In November, the US Senate hearing also confirmed the legitimacy of bitcoin. On November 19, the price of bitcoin rose to US $1242, forming a new high. Nevertheless, the foundation for blockchain to enter the mainstream social economy is not yet available, and the soaring price of bitcoin is only e to over optimistic expectations. The containment of China's banking system, the collapse of Mt. GOx and other events made the price of bitcoin continue to fall. At the beginning of 2015, the price of bitcoin has dropped below $200. From 2013 to the beginning of 2015, the public began to understand bitcoin and blockchain
4. The mainstream period of blockchain: on June 23, 2016, the United Kingdom left the European Union, the fifth nuclear test of North Korea in September, Trump's election in November and other events, the uncertainty of the world's mainstream economy led to the recovery of bitcoin with the function of risk aversion. The market demand was large, and the increase of trading volume made the price of bitcoin soar from $400 in 2016 to $20000 in 2017, The wealth effect of bitcoin and the transaction overflow caused by network congestion of bitcoin have led to the outbreak of other series of virtual currencies, as well as a variety of blockchain applications, resulting in the emergence of a large number of blockchain assets that are 100 times, even 1000 times and 10000 times, which has aroused the crazy pursuit of the world, Subsequently, the Chicago Mercantile Exchange launched bitcoin futures trading, marking that bitcoin has officially entered the mainstream investment proct series, and bitcoin and blockchain have entered the global attention
5. Instry landing stage: after the market frenzy in 2017, the virtual currency and blockchain have been adjusted in terms of market, supervision, cognition, etc. in 2018, returning to rationality. In 2017, many blockchain projects that follow the blockchain technology will graally die out with the cooling of the market, and the projects with real blockchain applications will be initially implemented. 2018 is not only the first year of the blockchain, but also a gold rush period for the blockchain. After the waves wash away the sand, what remains is relatively good gold
from the perspective of the history of blockchain development, blockchain technology is not yet mature and is currently in the growth period. The specific practical application of blockchain is only used in the financial field. It still needs a long way to go to apply blockchain from other instries. However, we should grasp the trend of blockchain and actively learn from the new field of blockchain.
2. However, after the emergence of the computer and Internet, the status of paper is no longer unshakable
ten years ago, my article was written on a black notebook. Now, all the words in my mind are entered into notebook, becoming 0 and 1, which is the change
from the present point of view, the disadvantages of paper are too obvious:
not environmentally friendly
not easy to save
for paper, long-distance transmission is very troublesome (such as information transmission)
the cost is high
easy to modify and forge
when there is a better choice in front of me, if I don't use it, isn't it a loss for me
have you ever thought that one day we won't need paper for our money
you may say:
"yes, I use Alipay and online banking every day, and no paper is used. Is this not achieved?"
indeed, Alipay's payment system is to digitize paper currency and store it in a huge database, but after all, it still needs paper money. The central bank does not print banknotes. The figures in the bank database are not too outrageous. Do you say yes or no?
can we say that the amount of money in the bank account book is the amount of cash? Of course not, because of the existence of bank loans, credit cards and other procts, the number in the bank database will only be much larger than the amount of cash, and this account book is not open, and the specific data deviation is only known to a few people
is there any payment system that does not rely on paper money, has high transparency, and no one can tamper with it
not to mention, it's really possible. Why is it possible? It's just a relatively mature experiment (with a market value of US $5 billion). In 2007, Satoshi Nakamoto, an anonymous big God or organization, began to conceive a magic project. After more than a year of careful elaboration, Nakamoto completed the white paper of the project (bitcoin: a peer-to-peer electronic cash system, Chinese Name: bitcoin: a peer-to-peer electronic cash system), In early 2009, the project was successfully launched
for the explanation of the principle of the system, I don't want to be a teacher here. For those who are interested, please refer to the information of the college channel or library. It's a very good place for you to understand these things
we just need to know that this e-cash system has nothing to do with paper. It is very transparent. Everyone can access and query this payment account book, and everyone can really control their own bookkeeping rights, that is, bitcoin token. As long as the Internet exists, someone is maintaining this account book (using mining machine operation), Then this kind of payment system can exist forever
well, you say it so well, this kind of system should be very popular, right? Of course not, because it is still in the experimental stage, there are still many defects in this kind of account book. For example, its token value fluctuates greatly, which is not suitable for pricing goods for the time being. For example, it has the problem of scalability. Maybe 100000 people use this system every day, and 10 million people use it to block and collapse. For example, it needs a lot of learning costs, People who don't have relevant knowledge are easy to lose money and so on. In short, there are a lot of problems
can we solve so many problems? Theoretically, it's very possible, because it's open source. Open source means that everyone can review and participate in improvement
of course, it's not to deceive you into buying bitcoin. This is not the purpose of my writing. Talking about bitcoin is just to introce a kind of technology, or an idea. What is it? In other words, blockchain (Chinese name is blockchain) is too popular now. Maybe you don't feel much about it at home. In foreign financial circles, it's no exaggeration to say that this word is the same as Dabao's advertising words
nowadays, foreign companies talk about "blockchain has the potential to subvert xxoo", which is like a common occurrence. Every once in a while, some giant set up a blockchain laboratory, and even the chief economist of the Bank of England raised the possibility of issuing national digital currency based on blockchain
we can't help asking, what is the basis of blockchain? What magic is driving or "deceiving" these institutions to lose their position for such a rising concept
blockchain originated from bitcoin. At present, the most successful blockchain is also bitcoin's blockchain. The reason why blockchain makes people reverie is that it has the characteristics of high transparency, unchangeable and no middleman
suppose I brainstorm and apply these features of blockchain to various applications in other instries, will it proce disruptive effects? Well, it's like now you have a new drug, which can cure all kinds of diseases in theory. Does that mean it's really suitable for treatment? You have to try, because you don't know the side effects! Now the blockchain is in such a stage. It seems to be able to cure all kinds of instries, but in fact it is only in the theoretical stage
when it comes to theory, I have to talk about it
first of all, what is the biggest difference between paper ledger and blockchain ledger
the former accounts by people, while the latter accounts by computer. Because people are too "smart", so bookkeeping is easy to be unexpected, and the efficiency is also very low, but computers are different, computers are "stupid", it is to act according to instructions, and the efficiency will be very high, there is also scalability. Ordinary database is a proct between paper account book and blockchain account book. It can save the system's partial dependence on human beings, but there are also problems in ordinary database. For example, it has access rights, such as the pension you pay. Can you know where they are going
therefore, companies, institutions or indivials with some ideas have gone to study blockchain technology.
ten years ago, my article was written on a black notebook. Now, all the words in my mind are entered into notebook, becoming 0 and 1, which is the change
from the present point of view, the disadvantages of paper are too obvious:
not environmentally friendly
not easy to save
for paper, long-distance transmission is very troublesome (such as information transmission)
the cost is high
easy to modify and forge
when there is a better choice in front of me, if I don't use it, isn't it a loss for me
have you ever thought that one day we won't need paper for our money
you may say:
"yes, I use Alipay and online banking every day, and no paper is used. Is this not achieved?"
indeed, Alipay's payment system is to digitize paper currency and store it in a huge database, but after all, it still needs paper money. The central bank does not print banknotes. The figures in the bank database are not too outrageous. Do you say yes or no?
can we say that the amount of money in the bank account book is the amount of cash? Of course not, because of the existence of bank loans, credit cards and other procts, the number in the bank database will only be much larger than the amount of cash, and this account book is not open, and the specific data deviation is only known to a few people
is there any payment system that does not rely on paper money, has high transparency, and no one can tamper with it
not to mention, it's really possible. Why is it possible? It's just a relatively mature experiment (with a market value of US $5 billion). In 2007, Satoshi Nakamoto, an anonymous big God or organization, began to conceive a magic project. After more than a year of careful elaboration, Nakamoto completed the white paper of the project (bitcoin: a peer-to-peer electronic cash system, Chinese Name: bitcoin: a peer-to-peer electronic cash system), In early 2009, the project was successfully launched
for the explanation of the principle of the system, I don't want to be a teacher here. For those who are interested, please refer to the information of the college channel or library. It's a very good place for you to understand these things
we just need to know that this e-cash system has nothing to do with paper. It is very transparent. Everyone can access and query this payment account book, and everyone can really control their own bookkeeping rights, that is, bitcoin token. As long as the Internet exists, someone is maintaining this account book (using mining machine operation), Then this kind of payment system can exist forever
well, you say it so well, this kind of system should be very popular, right? Of course not, because it is still in the experimental stage, there are still many defects in this kind of account book. For example, its token value fluctuates greatly, which is not suitable for pricing goods for the time being. For example, it has the problem of scalability. Maybe 100000 people use this system every day, and 10 million people use it to block and collapse. For example, it needs a lot of learning costs, People who don't have relevant knowledge are easy to lose money and so on. In short, there are a lot of problems
can we solve so many problems? Theoretically, it's very possible, because it's open source. Open source means that everyone can review and participate in improvement
of course, it's not to deceive you into buying bitcoin. This is not the purpose of my writing. Talking about bitcoin is just to introce a kind of technology, or an idea. What is it? In other words, blockchain (Chinese name is blockchain) is too popular now. Maybe you don't feel much about it at home. In foreign financial circles, it's no exaggeration to say that this word is the same as Dabao's advertising words
nowadays, foreign companies talk about "blockchain has the potential to subvert xxoo", which is like a common occurrence. Every once in a while, some giant set up a blockchain laboratory, and even the chief economist of the Bank of England raised the possibility of issuing national digital currency based on blockchain
we can't help asking, what is the basis of blockchain? What magic is driving or "deceiving" these institutions to lose their position for such a rising concept
blockchain originated from bitcoin. At present, the most successful blockchain is also bitcoin's blockchain. The reason why blockchain makes people reverie is that it has the characteristics of high transparency, unchangeable and no middleman
suppose I brainstorm and apply these features of blockchain to various applications in other instries, will it proce disruptive effects? Well, it's like now you have a new drug, which can cure all kinds of diseases in theory. Does that mean it's really suitable for treatment? You have to try, because you don't know the side effects! Now the blockchain is in such a stage. It seems to be able to cure all kinds of instries, but in fact it is only in the theoretical stage
when it comes to theory, I have to talk about it
first of all, what is the biggest difference between paper ledger and blockchain ledger
the former accounts by people, while the latter accounts by computer. Because people are too "smart", so bookkeeping is easy to be unexpected, and the efficiency is also very low, but computers are different, computers are "stupid", it is to act according to instructions, and the efficiency will be very high, there is also scalability. Ordinary database is a proct between paper account book and blockchain account book. It can save the system's partial dependence on human beings, but there are also problems in ordinary database. For example, it has access rights, such as the pension you pay. Can you know where they are going
therefore, companies, institutions or indivials with some ideas have gone to study blockchain technology.
3. Blockchain is the biggest trend in the next decade
if you look at the problem with the thinking of 30 years ago, you will think that others are crazy, but in fact you are out of date
the concept of blockchain can be traced back to the end of 2008. In the forum, a mysterious personage named "Nakamoto Tsung" published a paper "bitcoin: a peer-to-peer e-cash system" and proposed the concept of blockchain for the first time
on January 3, 2009, the first block of the blockchain was born, which is called the "Founding block"
almost with the birth of blockchain technology, bitcoin became the first thing to play its role. In the following years, bitcoin graally swept the world. In 2017, its crazy market made blockchain technology known to all
the idea of blockchain first appeared in the famous bitcoin open source project. In the process of its birth and development, bitcoin project draws on the technical achievements from digital currency, cryptography, game theory, distributed system, cybernetics and other fields. It can be said that bitcoin project is good at all. As its core supporting structure, blockchain technology is a remarkable innovation achievement
blockchain is a distributed database system with different nodes, which is an open ledger system<
three characteristics of blockchain
compared with the traditional centralized scheme, blockchain technology mainly has the following three characteristics:
the core idea of blockchain is decentralization
in the blockchain system, the rights and obligations between any node are equal, and all nodes have the ability to vote with computing power, Thus, the result recognized by more than half of the nodes is guaranteed. Even under serious hacker attacks, as long as the number of nodes controlled by hackers does not exceed half of the total number of nodes in the world, the system can still operate normally and the data will not be tampered with
block chain's biggest subversive is the establishment of credit
the collective maintenance of blockchain can rece the cost
in the centralized network system, the maintenance and operation of the system depend on the operation and operation of platforms such as data center, and the cost cannot be omitted. Anyone can participate in the nodes of the blockchain. Each node can verify the correctness of the results of other nodes' records while participating in the records, which improves the maintenance efficiency and reces the cost
in a word, blockchain touches money, trust and power, which are the fundamental basis for human survival< Its development has gone through three stages
1. Brewing period: from 2009 to 2012, bitcoin and its instrial ecology are the main economic forms
2. Embryonic period: from 2012 to 2015, with bitcoin entering the public view, new wallet payment and remittance companies appeared, and blockchain economy spread to the financial field. The underlying technology of blockchain is constantly innovated. Blockchain technology is separated from bitcoin system
3. Development period: in 2016, we began to explore instry applications, and a large number of blockchain start-ups appeared. The popularity of ICO in 2017 has given blockchain unprecedented attention
"blockchain 2.0 era" is coming
the application service layer is the driving force for the sustainable development of blockchain, which is divided into three stages of application: 1.0, 2.0 and 3.0
programmable currency: blockchain 1.0 application
programmable currency is the digital currency represented by bitcoin, but it is not the legal tender of any country or region, and there is no government authority to provide guarantee for it
programmable Finance: blockchain 2.0 application& quot; Smart contract& quot; Using program algorithm to replace the concept of contract execution. This enables blockchain to expand from the original monetary system to the registration and transfer of equity, creditor's rights and property rights, the transaction and execution of securities and financial contracts, and even the financial fields of gambling and anti-counterfeiting
programmable Society: blockchain 3.0 application
blockchain is the core of value Internet, which can confirm, measure and store the property rights of information and bytes representing value in each Internet. It can not only record the transactions of the financial instry, but also record almost anything valuable that can be expressed in the form of code. Its application can be extended to any field with demand, and then to the whole society
at present, the application of blockchain has begun to surpass bitcoin (blockchain 1.0), enter the era of blockchain 1.5, and transition to the financial field (blockchain 2.0)
in the next 3-5 years, blockchain may go beyond the financial field and enter the field of social notarization and intelligence (blockchain 3.0), including identity authentication, notarization, arbitration, audit, domain name, logistics, medical care, mail, visa, voting and other fields. Its application scope will be expanded to the whole society, and blockchain technology is likely to become a new technology& quot; All things are connected& quot; It's the lowest level protocol
at present, blockchain technology has been recognized by the world, and its development has become an inevitable trend. Accompanied by more people's attention, "in the next 30 years, new technologies will be integrated into all aspects of traditional instries, and human society will turn upside down. No matter who you are, no matter where you are, all of us will be a part of this great change."
this is the current situation. Blockchain has given the post-90s an opportunity. However, if you want to control blockchain technology without being affected by negative factors, the most important thing is to have a clear understanding of it, whether it is regulators, researchers, speculators or bystanders
it's time to devote more energy to blockchain technology
in China, the average annual salary of blockchain positions has reached more than 300000, and that of some enterprises has reached more than 1 million. The monthly salary of blockchain instry graates in Beijing, Shanghai and other places has exceeded 20K! If the post-90s seize the bonus of the times, they may become the next Alibaba in the future! If you miss it, you may regret it for ten years.
if you look at the problem with the thinking of 30 years ago, you will think that others are crazy, but in fact you are out of date
the concept of blockchain can be traced back to the end of 2008. In the forum, a mysterious personage named "Nakamoto Tsung" published a paper "bitcoin: a peer-to-peer e-cash system" and proposed the concept of blockchain for the first time
on January 3, 2009, the first block of the blockchain was born, which is called the "Founding block"
almost with the birth of blockchain technology, bitcoin became the first thing to play its role. In the following years, bitcoin graally swept the world. In 2017, its crazy market made blockchain technology known to all
the idea of blockchain first appeared in the famous bitcoin open source project. In the process of its birth and development, bitcoin project draws on the technical achievements from digital currency, cryptography, game theory, distributed system, cybernetics and other fields. It can be said that bitcoin project is good at all. As its core supporting structure, blockchain technology is a remarkable innovation achievement
blockchain is a distributed database system with different nodes, which is an open ledger system<
three characteristics of blockchain
compared with the traditional centralized scheme, blockchain technology mainly has the following three characteristics:
the core idea of blockchain is decentralization
in the blockchain system, the rights and obligations between any node are equal, and all nodes have the ability to vote with computing power, Thus, the result recognized by more than half of the nodes is guaranteed. Even under serious hacker attacks, as long as the number of nodes controlled by hackers does not exceed half of the total number of nodes in the world, the system can still operate normally and the data will not be tampered with
block chain's biggest subversive is the establishment of credit
the collective maintenance of blockchain can rece the cost
in the centralized network system, the maintenance and operation of the system depend on the operation and operation of platforms such as data center, and the cost cannot be omitted. Anyone can participate in the nodes of the blockchain. Each node can verify the correctness of the results of other nodes' records while participating in the records, which improves the maintenance efficiency and reces the cost
in a word, blockchain touches money, trust and power, which are the fundamental basis for human survival< Its development has gone through three stages
1. Brewing period: from 2009 to 2012, bitcoin and its instrial ecology are the main economic forms
2. Embryonic period: from 2012 to 2015, with bitcoin entering the public view, new wallet payment and remittance companies appeared, and blockchain economy spread to the financial field. The underlying technology of blockchain is constantly innovated. Blockchain technology is separated from bitcoin system
3. Development period: in 2016, we began to explore instry applications, and a large number of blockchain start-ups appeared. The popularity of ICO in 2017 has given blockchain unprecedented attention
"blockchain 2.0 era" is coming
the application service layer is the driving force for the sustainable development of blockchain, which is divided into three stages of application: 1.0, 2.0 and 3.0
programmable currency: blockchain 1.0 application
programmable currency is the digital currency represented by bitcoin, but it is not the legal tender of any country or region, and there is no government authority to provide guarantee for it
programmable Finance: blockchain 2.0 application& quot; Smart contract& quot; Using program algorithm to replace the concept of contract execution. This enables blockchain to expand from the original monetary system to the registration and transfer of equity, creditor's rights and property rights, the transaction and execution of securities and financial contracts, and even the financial fields of gambling and anti-counterfeiting
programmable Society: blockchain 3.0 application
blockchain is the core of value Internet, which can confirm, measure and store the property rights of information and bytes representing value in each Internet. It can not only record the transactions of the financial instry, but also record almost anything valuable that can be expressed in the form of code. Its application can be extended to any field with demand, and then to the whole society
at present, the application of blockchain has begun to surpass bitcoin (blockchain 1.0), enter the era of blockchain 1.5, and transition to the financial field (blockchain 2.0)
in the next 3-5 years, blockchain may go beyond the financial field and enter the field of social notarization and intelligence (blockchain 3.0), including identity authentication, notarization, arbitration, audit, domain name, logistics, medical care, mail, visa, voting and other fields. Its application scope will be expanded to the whole society, and blockchain technology is likely to become a new technology& quot; All things are connected& quot; It's the lowest level protocol
at present, blockchain technology has been recognized by the world, and its development has become an inevitable trend. Accompanied by more people's attention, "in the next 30 years, new technologies will be integrated into all aspects of traditional instries, and human society will turn upside down. No matter who you are, no matter where you are, all of us will be a part of this great change."
this is the current situation. Blockchain has given the post-90s an opportunity. However, if you want to control blockchain technology without being affected by negative factors, the most important thing is to have a clear understanding of it, whether it is regulators, researchers, speculators or bystanders
it's time to devote more energy to blockchain technology
in China, the average annual salary of blockchain positions has reached more than 300000, and that of some enterprises has reached more than 1 million. The monthly salary of blockchain instry graates in Beijing, Shanghai and other places has exceeded 20K! If the post-90s seize the bonus of the times, they may become the next Alibaba in the future! If you miss it, you may regret it for ten years.
4.
Anti counterfeiting, such as frog coin and Weilian the source and process of frozen food monitoring of final procts such as imported milk powder and luxury goods: red wine, bags and refrigerators, because it is impossible to cheat by writing into the blockchain Back modification is being implemented or has been implemented (only the chain's partners are very strong)
smart contract or intellectual property rights, such as publishing a song. In the blockchain, you own the song, use the smart contract to sell and protect the property rights, such as Neo and Ethereum. Game development or program development: for example, cryptokitties are free to breed and trade different kinds of cats without age or rarity (the closer the age is, the more expensive it is)
the evolutionary version of ICO IPO raised $40 billion in 2017, which is the securities of any company or indivial to support its development of e-money Platform (polymeth)
free trade of game items under development
5. Blockchain mainly solves the trust and security problems of transactions, so it proposes four technological innovations to solve this problem:
(1) distributed ledger, that is, transaction bookkeeping is completed by multiple nodes distributed in different places, and each node records complete accounts, so they can participate in monitoring the legitimacy of transactions, At the same time, they can testify together
different from traditional distributed storage, the uniqueness of distributed storage of blockchain is mainly reflected in two aspects: one is that each node of blockchain stores complete data according to block chain structure, while traditional distributed storage generally stores data in multiple copies according to certain rules. Second, the storage of each node in the blockchain is independent and has the same status, which relies on the consensus mechanism to ensure the consistency of storage, while the traditional distributed storage generally synchronizes data from the central node to other backup nodes[ 8]
no single node can record the account data separately, so as to avoid the possibility that a single bookkeeper is controlled or bribed to record false accounts. In theory, unless all the nodes are destroyed, the accounts will not be lost, so as to ensure the security of the account data
(2) asymmetric 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
(3) consensus mechanism is how to reach a consensus among all accounting nodes to determine the validity of a record, which 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
the consensus mechanism of blockchain has the characteristics of "the minority is subordinate to the majority" and "everyone is equal", in which "the minority is subordinate to the majority" does not completely refer to the number of nodes, but also can be the computing power, the number of shares or other characteristics that can be compared by computers“ "Everyone is equal" means that when the nodes meet the conditions, all nodes have the right to put forward the consensus results first, and then directly recognized by other nodes, and finally may become the final consensus results. 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 in the blockchain, this is basically impossible, thus eliminating the possibility of fraud.
(4) smart contract, which is based on these trusted and tamperable data, 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
(1) distributed ledger, that is, transaction bookkeeping is completed by multiple nodes distributed in different places, and each node records complete accounts, so they can participate in monitoring the legitimacy of transactions, At the same time, they can testify together
different from traditional distributed storage, the uniqueness of distributed storage of blockchain is mainly reflected in two aspects: one is that each node of blockchain stores complete data according to block chain structure, while traditional distributed storage generally stores data in multiple copies according to certain rules. Second, the storage of each node in the blockchain is independent and has the same status, which relies on the consensus mechanism to ensure the consistency of storage, while the traditional distributed storage generally synchronizes data from the central node to other backup nodes[ 8]
no single node can record the account data separately, so as to avoid the possibility that a single bookkeeper is controlled or bribed to record false accounts. In theory, unless all the nodes are destroyed, the accounts will not be lost, so as to ensure the security of the account data
(2) asymmetric 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
(3) consensus mechanism is how to reach a consensus among all accounting nodes to determine the validity of a record, which 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
the consensus mechanism of blockchain has the characteristics of "the minority is subordinate to the majority" and "everyone is equal", in which "the minority is subordinate to the majority" does not completely refer to the number of nodes, but also can be the computing power, the number of shares or other characteristics that can be compared by computers“ "Everyone is equal" means that when the nodes meet the conditions, all nodes have the right to put forward the consensus results first, and then directly recognized by other nodes, and finally may become the final consensus results. 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 in the blockchain, this is basically impossible, thus eliminating the possibility of fraud.
(4) smart contract, which is based on these trusted and tamperable data, 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
6. QQ coin is a kind of virtual currency issued by Tencent in order to facilitate users to purchase the virtual goods and services it provides. Its official price is: 1q coin = 1 yuan. However, if the amount of recharge is large, there will be a certain amount of discount on some recharge platforms
it should be noted that this is the recharge price. If it's selling q-coin, because q-coin recycling is now done by some third-party platforms, there will be a certain cost. Therefore, the recovery price of Q coin is generally lower than the recharge price, remember!
it should be noted that this is the recharge price. If it's selling q-coin, because q-coin recycling is now done by some third-party platforms, there will be a certain cost. Therefore, the recovery price of Q coin is generally lower than the recharge price, remember!
7.
Blockchain is a special network account book. The core of blockchain technology is digital encryption. As early as 1991, a group of young people invented a new set of mutual authentication encryption technology in order not to tamper with the date of electronic documents. By means of cryptography, they concatenated and protected the concatenated text records (also known as blocks)
blockchain stores data in blocks, and each block is queued in strict order to form a "chain". If someone wants to change the content of a block, the unique characteristics of the block will also change, and the following blocks will not recognize it immediately, and the "fake" block will have to break away from the chain
extended data
users all over the world can connect their servers to the blockchain network and become an independent node in the distributed database storage system. Once joined, the node will enjoy the same rights and obligations as all other nodes
therefore, people who carry out services on the blockchain can read and write to any node in the system. All nodes in the world will synchronize again and again according to some mechanism, so that the data of all nodes in the blockchain network is completely consistent
because of the two characteristics of immutability and decentralization. Blockchain is a good solution to the problem of trust in modern commercial society. It has emerged in financial services, Internet of things, public services, social welfare and supply chain management
8. Cornerstone stage refers to token based on blockchain technology, which is in the first stage of ICO. It's similar to the first round of angel investment.
9. Talking about blockchain is like people talking about the Internet in the 1990s. No one knows that the Internet will bring such a profound and extensive impact. Just like now, no one can explain how the blockchain will change our lives, and everything is in the ascendant. What we can do is to keep understanding it, keep thinking and keep trying
decentralized blockchain technology may play a real value at that time, monitoring and supervising the common internet giants of human society. In other words, blockchain technology is the best choice when it is necessary to vote on major issues of giants such as social networks, search engines and e-commerce. Because it's the only way to prevent voting from being controlled on a large scale
one response to this centralization is to impose government regulation on large Internet companies. This response presupposes that the Internet is similar to previous communication networks such as telephone, radio and television networks. But in the past, hardware based network is different from software based Internet. Once the hardware based network is established, it is almost impossible to rewrite, but the software based network can be rewritten through enterprise innovation and market forces
decentralization is a commonly misunderstood concept. For example, some people sometimes think that the reason why crypto networks advocate and praise decentralization is to resist government censorship, or because of liberal political views. But this is not the main value of decentralization
let's take a look at the problems of the centralized platform. The centralized platform follows a predictable life cycle. When they start running, they will make every effort to recruit users and third-party personnel, such as developers, enterprises and media organizations. They do this to make their services more valuable, because the platform (by definition) is a system with multifaceted network effects. With the S-curve growth of platform adoption, their impact on users and third parties is also rising steadily
when they reach the top of the S-curve, their relationship with network participants decreases to near zero. The simplest way for a centralized platform to continue to grow is to extract data from users and compete with competitors in terms of audience and profit
historical examples include Microsoft vs. Netscape, Google vs. yelp, Facebook vs. Zynga, and twitter vs. third-party clients. Operating systems such as IOS and Android perform better. Although they still have to pay 30% tax, they refuse applications for seemingly arbitrary reasons and arbitrarily incorporate the functions of third-party applications into their own platforms
for the third party, the change from cooperation to competition is like a kind of t. As time goes on, the best entrepreneurs, developers and investors are becoming cautious about creating on a centralized platform. We now have decades of evidence that this will ultimately be disappointing. In addition, users can only let the platform to collect their own data, there is no way to protect their privacy, and the centralized platform is often attacked because of security vulnerabilities. These problems of centralized platform may become more prominent in the future
the Internet is a software based network, which consists of a relatively simple core layer and connects billions of fully programmable computers. Software is just the code of human thinking, so it has almost unlimited design space. Computers connected to the Internet are generally free to run any software of their owners' choice. Whatever you think of, with the right incentives, it can spread quickly through the Internet. It can be said that the Internet architecture is a platform for the integration of technological innovation and incentive design
now the Internet is still in its infancy. When bitcoin and Ethereum were first introced, it was proposed that the underlying internet protocol would be rewritten by encryption algorithm in the next few decades. Distributed network integrates the best features of the first two Internet times. Through community management and decentralized network, its function will eventually surpass the most advanced centralized service
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.
decentralized blockchain technology may play a real value at that time, monitoring and supervising the common internet giants of human society. In other words, blockchain technology is the best choice when it is necessary to vote on major issues of giants such as social networks, search engines and e-commerce. Because it's the only way to prevent voting from being controlled on a large scale
one response to this centralization is to impose government regulation on large Internet companies. This response presupposes that the Internet is similar to previous communication networks such as telephone, radio and television networks. But in the past, hardware based network is different from software based Internet. Once the hardware based network is established, it is almost impossible to rewrite, but the software based network can be rewritten through enterprise innovation and market forces
decentralization is a commonly misunderstood concept. For example, some people sometimes think that the reason why crypto networks advocate and praise decentralization is to resist government censorship, or because of liberal political views. But this is not the main value of decentralization
let's take a look at the problems of the centralized platform. The centralized platform follows a predictable life cycle. When they start running, they will make every effort to recruit users and third-party personnel, such as developers, enterprises and media organizations. They do this to make their services more valuable, because the platform (by definition) is a system with multifaceted network effects. With the S-curve growth of platform adoption, their impact on users and third parties is also rising steadily
when they reach the top of the S-curve, their relationship with network participants decreases to near zero. The simplest way for a centralized platform to continue to grow is to extract data from users and compete with competitors in terms of audience and profit
historical examples include Microsoft vs. Netscape, Google vs. yelp, Facebook vs. Zynga, and twitter vs. third-party clients. Operating systems such as IOS and Android perform better. Although they still have to pay 30% tax, they refuse applications for seemingly arbitrary reasons and arbitrarily incorporate the functions of third-party applications into their own platforms
for the third party, the change from cooperation to competition is like a kind of t. As time goes on, the best entrepreneurs, developers and investors are becoming cautious about creating on a centralized platform. We now have decades of evidence that this will ultimately be disappointing. In addition, users can only let the platform to collect their own data, there is no way to protect their privacy, and the centralized platform is often attacked because of security vulnerabilities. These problems of centralized platform may become more prominent in the future
the Internet is a software based network, which consists of a relatively simple core layer and connects billions of fully programmable computers. Software is just the code of human thinking, so it has almost unlimited design space. Computers connected to the Internet are generally free to run any software of their owners' choice. Whatever you think of, with the right incentives, it can spread quickly through the Internet. It can be said that the Internet architecture is a platform for the integration of technological innovation and incentive design
now the Internet is still in its infancy. When bitcoin and Ethereum were first introced, it was proposed that the underlying internet protocol would be rewritten by encryption algorithm in the next few decades. Distributed network integrates the best features of the first two Internet times. Through community management and decentralized network, its function will eventually surpass the most advanced centralized service
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.
10. In just a few years, blockchain has developed from 1.0 era to 3.0 era. The update of each "era" has brought changes to the world. The development of blockchain can be divided into three stages from 1.0 era to 3.0 era: point-to-point transaction, transaction and transaction Smart contract and blockchain application Ecology (token economy)
blockchain 1.0 era: digital currency rate of return is the king
blockchain 2.0 era: smart contract provides infrastructure support for upper application development
blockchain 3.0: the subversion of business lies in the transformation of proction relations
all obstacles to the development of human society, Fundamentally speaking, they are all caused by "mutual distrust", especially various economic and financial crises. If human beings can solve the problem of mutual trust, then human beings will complete a very big leap forward
the development of blockchain has graally laid the foundation for this direction. Human beings are entering the era of "smart contract", which is the process of upgrading human trust mechanism. Once the smart contract is reached, human society is facing a new big upgrade. As a value creator, the value created by each indivial can be accurately recorded and the corresponding return can be obtained, There will be less and less mutual interference, and people are really moving towards independence and equality. Human civilization has evolved from "identity society" to "contract society", and blockchain is expected to lead human beings to transition from "contract society" to "smart contract society"
although blockchain has gone out of the conceptual stage, the current situation of blockchain technology development is that the underlying technology is not mature enough and the application scenarios are relatively limited. On the one hand, consensus algorithm and other core technologies of blockchain still have room for optimization and improvement; On the other hand, the processing efficiency of blockchain is difficult to meet the requirements of some high-frequency application environments in reality. Moreover, the current mainstream blockchain technology platforms are originated from foreign countries. Domestic blockchain technology service providers should patiently start from the bottom development, achieve independent and controllable technology, and strive to lead the global blockchain technology development. It still needs a certain period of time. It can be said that the whole domestic trend is waiting for the emergence of a super level blockchain project
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.
blockchain 1.0 era: digital currency rate of return is the king
blockchain 2.0 era: smart contract provides infrastructure support for upper application development
blockchain 3.0: the subversion of business lies in the transformation of proction relations
all obstacles to the development of human society, Fundamentally speaking, they are all caused by "mutual distrust", especially various economic and financial crises. If human beings can solve the problem of mutual trust, then human beings will complete a very big leap forward
the development of blockchain has graally laid the foundation for this direction. Human beings are entering the era of "smart contract", which is the process of upgrading human trust mechanism. Once the smart contract is reached, human society is facing a new big upgrade. As a value creator, the value created by each indivial can be accurately recorded and the corresponding return can be obtained, There will be less and less mutual interference, and people are really moving towards independence and equality. Human civilization has evolved from "identity society" to "contract society", and blockchain is expected to lead human beings to transition from "contract society" to "smart contract society"
although blockchain has gone out of the conceptual stage, the current situation of blockchain technology development is that the underlying technology is not mature enough and the application scenarios are relatively limited. On the one hand, consensus algorithm and other core technologies of blockchain still have room for optimization and improvement; On the other hand, the processing efficiency of blockchain is difficult to meet the requirements of some high-frequency application environments in reality. Moreover, the current mainstream blockchain technology platforms are originated from foreign countries. Domestic blockchain technology service providers should patiently start from the bottom development, achieve independent and controllable technology, and strive to lead the global blockchain technology development. It still needs a certain period of time. It can be said that the whole domestic trend is waiting for the emergence of a super level blockchain project
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.
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