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The nature of blockchain is a huge challenge
Publish: 2021-04-23 21:12:56
1. blockchain is a new application mode of computer technology, such as distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and so on. As an important concept of bitcoin, blockchain is essentially a decentralized database. At the same time, as the underlying technology of bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains a batch of bitcoin network transaction information, which is used to verify the validity of the information and generate the next block
this is a passage in Alibaba's documentary dreamer. When ps: is repeated many times, it can explain the term "third parties" very well. This is also the beginning of Taobao and Alipay's birth. In other words, at that time, Ali was forced to act as a "third party" because no company could play such a role, so Ali became a center of trust. Businesses and users chose to give money to Ali because of "trust". But what if Ali absconds with money (though impossible...) or if the financial operator has problems (after all, it's human...)? If only there was a machine or a "super system" to do these things! Today, more than ten years after the replacement of Internet technology, blockchain appears in front of us, right! It's the super system;! A machine of trust
with blockchain, things start to change
traditional centralized mode:
decentralized mode under blockchain network:
in decentralized network, each user can be directly contacted without any third party's participation, and the transfer between users is like hand-in-hand cash, which is why bitcoin is called "e-cash"
well, now that a has transferred the money to B, who will charge the account? Alipay has helped me keep account of accounts, which will be unified in Alipay backstage system. In order to make all the transactions of the users recorded and the accounts are correct, Alipay will make great efforts to this end. Look at Alipay's initial
1000 bills per day. Artificial reconciliation is already very painful. With the volume of Alipay now, there are less than hundreds of thousands of bills per day, even if the system reconciliation is unavoidable, and it is necessary to pay the corresponding manpower and material resources to maintain this very complex revenue and expenditure clearing system. Having said so much, how does the blockchain reconcile? The answer is: no! There is no need for reconciliation and zero clearing in the blockchain network, because every node in the blockchain (a computer or a user) has its own account book, which is updated in real time. Any transaction in the blockchain network will be recorded in your own account book. Yes, you also have other people's accounts, But you don't know who this person is, because they all look like this:
this is a passage in Alibaba's documentary dreamer. When ps: is repeated many times, it can explain the term "third parties" very well. This is also the beginning of Taobao and Alipay's birth. In other words, at that time, Ali was forced to act as a "third party" because no company could play such a role, so Ali became a center of trust. Businesses and users chose to give money to Ali because of "trust". But what if Ali absconds with money (though impossible...) or if the financial operator has problems (after all, it's human...)? If only there was a machine or a "super system" to do these things! Today, more than ten years after the replacement of Internet technology, blockchain appears in front of us, right! It's the super system;! A machine of trust
with blockchain, things start to change
traditional centralized mode:
decentralized mode under blockchain network:
in decentralized network, each user can be directly contacted without any third party's participation, and the transfer between users is like hand-in-hand cash, which is why bitcoin is called "e-cash"
well, now that a has transferred the money to B, who will charge the account? Alipay has helped me keep account of accounts, which will be unified in Alipay backstage system. In order to make all the transactions of the users recorded and the accounts are correct, Alipay will make great efforts to this end. Look at Alipay's initial
1000 bills per day. Artificial reconciliation is already very painful. With the volume of Alipay now, there are less than hundreds of thousands of bills per day, even if the system reconciliation is unavoidable, and it is necessary to pay the corresponding manpower and material resources to maintain this very complex revenue and expenditure clearing system. Having said so much, how does the blockchain reconcile? The answer is: no! There is no need for reconciliation and zero clearing in the blockchain network, because every node in the blockchain (a computer or a user) has its own account book, which is updated in real time. Any transaction in the blockchain network will be recorded in your own account book. Yes, you also have other people's accounts, But you don't know who this person is, because they all look like this:
2.
this is the general content of popular science. If you want to know more about it, you can take a look at Nakamoto's paper and the official popular science video below
The price of a bitcoin soared from more than $20000 to $40000. This can not help but arouse my research interest, or simply understand what bitcoin is, what its mechanism looks like, and uncover its mystery. Therefore, after a simple search of some information and some understanding of the special currency, I sorted out the information on hand< (3) purpose: decentralize, rece risk
all servers in the distributed network can store and process data, and each server has equal status, which can store more data and has higher security<
this is the general content of popular science. If you want to know more about it, you can take a look at Nakamoto's paper and the official popular science video below
3. The essence of blockchain is a decentralized distributed ledger. Every transaction is recorded in this account book, and each participating node has one , so as to prevent the account book from being tampered with. Data loss will not be caused by the failure of a single node (such as the centralized server of the bank), and it can exist forever
it establishes a set of consensus mechanism to ensure the authenticity of data, and establishes trust between nodes that do not know each other. The participating nodes work together to maintain the healthy growth of the system
in order to stimulate the enthusiasm of participants, bitcoin, the first application of blockchain, was created.
it establishes a set of consensus mechanism to ensure the authenticity of data, and establishes trust between nodes that do not know each other. The participating nodes work together to maintain the healthy growth of the system
in order to stimulate the enthusiasm of participants, bitcoin, the first application of blockchain, was created.
4. The essence of blockchain is a distributed ledger. For example, the bank system is also the account book, which has a complete set of information system to store various transaction information such as access, loan, exchange and so on. Blockchain has several keywords:
1. Distributed: ledger is not only stored in one place, but in many places
2. General ledger: you can determine that you are not necessarily a machine stored general ledger through the network, but you can at least obtain the general ledger from the network
3. Decentralization: "distributed" is not a general distribution, but a decentralized distribution. No one can control and tamper with it, its accounting rules are based on some designed mathematical method to account for all rights. How to test, how to use, are in accordance with an open method to complete, so in essence is an account book
coin Ying China is the first to introce blockchain into the crowdfunding instry, making crowdfunding more open, transparent and simple.
1. Distributed: ledger is not only stored in one place, but in many places
2. General ledger: you can determine that you are not necessarily a machine stored general ledger through the network, but you can at least obtain the general ledger from the network
3. Decentralization: "distributed" is not a general distribution, but a decentralized distribution. No one can control and tamper with it, its accounting rules are based on some designed mathematical method to account for all rights. How to test, how to use, are in accordance with an open method to complete, so in essence is an account book
coin Ying China is the first to introce blockchain into the crowdfunding instry, making crowdfunding more open, transparent and simple.
5. It doesn't matter. Chain and currency can be separated. Currency is the financing means of R & D chain. But now people are keen on hyping currency. The technology financing of chain has not been well realized, or they simply forget what the purpose of issuing currency is. The result is that the chain or the country takes the lead, and the currency or the country's reputation has real value, The essence of all virtual currency trading is to earn money with national reputation.
6. Blockchain is an important concept of bitcoin. According to the 2014-2016 global bitcoin Development Research Report released by fire coin and Internet Finance Laboratory of Wukou School of finance of Tsinghua University and Sina Technology, blockchain is the underlying technology and infrastructure of bitcoin. 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
in a narrow sense, blockchain is a kind of chain data structure that combines data blocks in chronological order in a sequential way, and it can not be tampered with and forged by cryptography. In a broad sense, blockchain technology is a new distributed infrastructure and computing paradigm, which uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses intelligent contract composed of automated script code to program and operate data
domestic blockchain application platforms include digital currency crowdfunding platform, asset custody system based on blockchain technology, which is jointly developed by coin Ying China, China Post and IBM.
in a narrow sense, blockchain is a kind of chain data structure that combines data blocks in chronological order in a sequential way, and it can not be tampered with and forged by cryptography. In a broad sense, blockchain technology is a new distributed infrastructure and computing paradigm, which uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses intelligent contract composed of automated script code to program and operate data
domestic blockchain application platforms include digital currency crowdfunding platform, asset custody system based on blockchain technology, which is jointly developed by coin Ying China, China Post and IBM.
7. Blockchain is an important concept of bitcoin. In essence, it is a decentralized database and 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
in a narrow sense, blockchain is a kind of chained data structure, which is composed of data blocks connected in sequence according to the time sequence, and is a distributed account that can not be tampered with and forged by cryptography. In a broad sense, blockchain technology is a new distributed infrastructure and computing paradigm, which uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses intelligent contract composed of automated script code to program and operate data
blockchain and big blockchain are not the same concept. Big blockchain should be the name of a company. Bitcoin, Ethereum and decent are all successful cases of blockchain technology.
in a narrow sense, blockchain is a kind of chained data structure, which is composed of data blocks connected in sequence according to the time sequence, and is a distributed account that can not be tampered with and forged by cryptography. In a broad sense, blockchain technology is a new distributed infrastructure and computing paradigm, which uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses intelligent contract composed of automated script code to program and operate data
blockchain and big blockchain are not the same concept. Big blockchain should be the name of a company. Bitcoin, Ethereum and decent are all successful cases of blockchain technology.
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