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Blockchain six pdf
Publish: 2021-05-11 14:51:41
1. blockchain world is proced by Jingtong technology< Make complaints about br / > block chain
2.
< Introction to cognition & gt
publication time: 2016
recommendation: this book is mainly for programmers. Combined with API programming, we can tell you the principle and usage of cryptocurrency, as well as how to develop related software. For non programmer readers, the first few chapters of this book are still applicable as in-depth introction of bitcoin Book pdf download: https://quant.la/Download
3.
< Introction to cognition & gt Download link is attached at the end of the article)
new economy blueprint and guide
publication time: 2016
recommendation: this book is mainly for programmers. Combined with API programming, we can tell you the principle and usage of cryptocurrency, as well as how to develop related software. For non programmer readers, the first few chapters of this book are still applicable as in-depth introction of bitcoin. Book download
4. What is blockchain technology? What is blockchain
what is blockchain technology? Blockchain is a kind of distributed shared accounting technology. What it needs to do is to enable all parties involved to establish a trust relationship at the technical level. Blockchain can be roughly divided into two levels, one is to do the underlying technology of blockchain; The second is to do the upper application of blockchain, that is, the transformation, optimization or innovative application based on blockchain. What is the core meaning of the blockchain? Our understanding is that the core meaning of the blockchain is to establish data credit between the participants, create unilateral ecology under clear provisions through unilateral confrontation, and jointly guarantee complete opportunities. This is a system, and this kind of construction can end the problems before the blockchain, When data is shared, it is impossible to achieve new sharing. Even if you do orientation, it only gives you an interface. After the blockchain is established, the participants can realize credit sharing
blockchain has been applied in several fields. In the first field of digital assets, in addition to some points and check-in cards we have seen, it also includes various other assets, which have the process of asset digitization
the second area is trade finance, because trade finance is originally a way of multi link participation and multi-party participation, blockchain can greatly improve the efficiency of the middle, making many of the original procts achieve the effect of substitutes
the third area uses equity, which is the company's equity. Like some regional equity trading centers, the purpose is to solve the convenience between equity and trading, and to make a relatively convenient circulation. At present, the multi center blockchain system can indeed improve efficiency and rece costs
Introction to Bubi blockchain
Bubi blockchain is mainly positioned to provide commercial level blockchain infrastructure services, mainly including building a blockchain system and building a supporting system with high scalability on the blockchain system. And the support system above is the application of all walks of life. Bubi focuses more on the underlying technology of the blockchain. In the past three years or so, almost all the energy of the team of more than a dozen people has been devoted to the research and development of the underlying technology. The reason why Bubi blockchain chooses points has something to do with the promotion method of the market. As we all know, blockchain is a very suitable technology for digital asset issuance and trading. Integral is a kind of natural legal and compliant digital asset, which has little impact because of its small amount. So it's a very suitable choice to take points as the first attempt of digital asset issuance. Issuing points based on blockchain can also bring great help to the circulation and exchange of points
blockchain has many entry points in improving the financial system. Which link is the easiest to break through in different links
it is difficult to find a particularly good answer to which link is the easiest to cut in. But generally speaking, clearing and settlement, equity, various digital assets and other links are definitely the scope of application of blockchain. Every field is cutting in at the same time. At present, a realistic entry path is to graally evolve from incremental and peripheral to core components, and it is unlikely to enter the core at the beginning
the so-called peripheral, take clearing and settlement as an example, it is impossible to replace clearing and settlement system immediately at the beginning, but we can take some partial clearing and settlement business as a proof of concept, and graally we can replace and upgrade some large systems. This may be a relatively long process. Now it is difficult to give a time point for blockchain to be applied to clearing and settlement system on a large scale, It depends on the development trend
blockchain does not necessarily have no center. The so-called decentralization is more about establishing a multi center system to better overcome the original decentralized structure of each center
in fact, most of the links in the current financial system have their own centers, and it is almost impossible to share data with trust between each other - although it can connect systems and APIs, it is impossible to share data with trust. Blockchain can help these participants to set up multiple centers, realize joint trust, improve efficiency and rece costs. Therefore, the decentralization of the blockchain is by no means without a center or anti center. It is more multi center or sub center, and the decentralized center is the participants of each business. This is the next step that blockchain will change the financial system the most, and truly build a trusted multi center system
what is blockchain technology? After a certain application analysis, we will go back to the starting point. The definition of blockchain technology will become more and more abundant with the development of application. People will find more mysteries of blockchain technology.
what is blockchain technology? Blockchain is a kind of distributed shared accounting technology. What it needs to do is to enable all parties involved to establish a trust relationship at the technical level. Blockchain can be roughly divided into two levels, one is to do the underlying technology of blockchain; The second is to do the upper application of blockchain, that is, the transformation, optimization or innovative application based on blockchain. What is the core meaning of the blockchain? Our understanding is that the core meaning of the blockchain is to establish data credit between the participants, create unilateral ecology under clear provisions through unilateral confrontation, and jointly guarantee complete opportunities. This is a system, and this kind of construction can end the problems before the blockchain, When data is shared, it is impossible to achieve new sharing. Even if you do orientation, it only gives you an interface. After the blockchain is established, the participants can realize credit sharing
blockchain has been applied in several fields. In the first field of digital assets, in addition to some points and check-in cards we have seen, it also includes various other assets, which have the process of asset digitization
the second area is trade finance, because trade finance is originally a way of multi link participation and multi-party participation, blockchain can greatly improve the efficiency of the middle, making many of the original procts achieve the effect of substitutes
the third area uses equity, which is the company's equity. Like some regional equity trading centers, the purpose is to solve the convenience between equity and trading, and to make a relatively convenient circulation. At present, the multi center blockchain system can indeed improve efficiency and rece costs
Introction to Bubi blockchain
Bubi blockchain is mainly positioned to provide commercial level blockchain infrastructure services, mainly including building a blockchain system and building a supporting system with high scalability on the blockchain system. And the support system above is the application of all walks of life. Bubi focuses more on the underlying technology of the blockchain. In the past three years or so, almost all the energy of the team of more than a dozen people has been devoted to the research and development of the underlying technology. The reason why Bubi blockchain chooses points has something to do with the promotion method of the market. As we all know, blockchain is a very suitable technology for digital asset issuance and trading. Integral is a kind of natural legal and compliant digital asset, which has little impact because of its small amount. So it's a very suitable choice to take points as the first attempt of digital asset issuance. Issuing points based on blockchain can also bring great help to the circulation and exchange of points
blockchain has many entry points in improving the financial system. Which link is the easiest to break through in different links
it is difficult to find a particularly good answer to which link is the easiest to cut in. But generally speaking, clearing and settlement, equity, various digital assets and other links are definitely the scope of application of blockchain. Every field is cutting in at the same time. At present, a realistic entry path is to graally evolve from incremental and peripheral to core components, and it is unlikely to enter the core at the beginning
the so-called peripheral, take clearing and settlement as an example, it is impossible to replace clearing and settlement system immediately at the beginning, but we can take some partial clearing and settlement business as a proof of concept, and graally we can replace and upgrade some large systems. This may be a relatively long process. Now it is difficult to give a time point for blockchain to be applied to clearing and settlement system on a large scale, It depends on the development trend
blockchain does not necessarily have no center. The so-called decentralization is more about establishing a multi center system to better overcome the original decentralized structure of each center
in fact, most of the links in the current financial system have their own centers, and it is almost impossible to share data with trust between each other - although it can connect systems and APIs, it is impossible to share data with trust. Blockchain can help these participants to set up multiple centers, realize joint trust, improve efficiency and rece costs. Therefore, the decentralization of the blockchain is by no means without a center or anti center. It is more multi center or sub center, and the decentralized center is the participants of each business. This is the next step that blockchain will change the financial system the most, and truly build a trusted multi center system
what is blockchain technology? After a certain application analysis, we will go back to the starting point. The definition of blockchain technology will become more and more abundant with the development of application. People will find more mysteries of blockchain technology.
5.
Dahua blockchain is a book published by Tsinghua University Press in September 2019, written by Zhang Yingping. This book is a blockchain book that comprehensively explains bitcoin, Ethereum, super ledger and EOS, a blockchain development guide from engineer basic skills, development language to smart contract development, and a blockchain engineer guide from technology, project to career development planning
"Dahua blockchain"
"Dahua blockchain" is a blockchain book that pays equal attention to theory and practice, easy to understand and professional. The blockchain technology guide (the first three chapters) mainly explains the concept of blockchain, blockchain applications, bitcoin, Ethereum, super ledger, EOS and other mainstream blockchain technologies. Through learning, each reader can fully understand the implementation principles of mainstream blockchain technologies and understand the future development trend of blockchain. The practical part of development (the last two chapters) starts from the basic skills of blockchain, simulates the development of real blockchain projects, and explains in detail the design, development and deployment of smart contract and DAPP. Through learning, every reader can master the development of blockchain
6.
Does it have to be PDF? There are a series of blockchain books on hand. You can go to
7. There are six hierarchical structures in the blockchain, which are from bottom to top: data layer, network layer, consensus layer, incentive layer, contract layer and application layer
1. Data layer
the data layer is the lowest layer in the six hierarchies of the blockchain. We can understand the data layer as a database, but for the blockchain, this database is a tamperable and distributed database, which is what we call "distributed ledger"
in the data layer, that is, the "distributed ledger", the data information on the blockchain is stored, and the blockchain structure, asymmetric encryption technology, hash algorithm and other technical means of the block are encapsulated to ensure the security of the data in the case of the whole network being open. The specific method is:
in the blockchain network, nodes use consensus algorithm to maintain the consistency of data layer (that is, the distributed database), and use asymmetric encryption and hash algorithm in cryptography to ensure the non usurpation and traceability of the distributed database
This constitutes the bottom data structure of blockchain technology. However, it is not enough to have a distributed database. We also need to let the data information in the database be shared and exchanged. Next, we will introce the upper layer of the data layer - the network layer
Second, network layer
the network system of blockchain is essentially a P2P (point-to-point) network. Point to point means that there is no need for an intermediate link or centralized server to control the system. All resources and services in the network are distributed in the hands of each node, and the transmission of information is also a direct communication between the two nodes. However, it should be noted that P2P
(peer-to-peer) was not invented by Nakamoto, and the blockchain only integrates this technology
therefore, the network layer of blockchain is actually a particularly powerful point-to-point network system. In this system, each node can not only proce information, but also receive information, just like sending e-mail. You can write your own e-mail, and you can also receive the e-mail sent to you by others
in the blockchain network, nodes need to jointly maintain the blockchain system. Every time a node creates a new block, it needs to notify other nodes in the form of broadcast. After receiving the information, other nodes verify the block, and then create a new block on the basis of the block. In this way, the whole network can jointly maintain and update the general ledger of the blockchain system
however, what rules should the whole network follow to maintain and update the general ledger of the blockchain system? This involves the so-called "laws and regulations" (rules), which we will introce next: the consensus layer
Third, consensus layer
in the world of blockchain, consensus simply means that the whole network should maintain and update the general ledger of blockchain system according to a unified and agreed rule, which is similar to the rule of updating data. It is one of the core technologies of blockchain and the governance mechanism of blockchain community to let highly dispersed nodes reach consensus efficiently in the decentralized blockchain network
at present, the mainstream consensus mechanism algorithms include: proof of work of bitcoin (POW), proof of rights and interests of Ethereum (POS), proof of rights and interests of EOS (dpos), etc
we now introce the data layer, network layer and consensus layer. These three layers ensure that there are data, networks and rules for updating data on the network. However, there is no free lunch in the world. How can nodes actively participate in the maintenance of the blockchain system? Here is the incentive layer, which we will introce next: incentive layer< 4. Incentive layer
incentive layer is the so-called mining mechanism, which can be understood as incentive mechanism: you can get as much reward as you contribute to the blockchain system. With this incentive mechanism, the whole network nodes can be encouraged to participate in the data recording and maintenance on the blockchain
mining mechanism and consensus mechanism are actually the same truth. Consensus mechanism can be understood as the company's general rules and regulations, while mining mechanism can be understood as the reward rules for what you do well in the general rules and regulations
just like the consensus mechanism POW of bitcoin, it stipulates that more work pays more. Whoever can find the correct hash value first can get a certain amount of bitcoin reward
and Ethereum's POS stipulates that the older the holder is, the more likely he or she will be rewarded
it should be noted that the incentive layer is generally only available for the public chain, because the public chain must rely on the nodes of the whole network to jointly maintain data, so there must be a set of incentive mechanism to encourage the nodes of the whole network to participate in the construction and maintenance of the blockchain system, so as to ensure the security and reliability of the blockchain system
the blockchain is safe and reliable, and it is not intelligent enough, right? The contract layer we will introce next can make the blockchain system more intelligent
v. contract layer
Contract layer mainly includes various scripts, codes, algorithm mechanisms and smart contracts, which is the basis of block chain programming. What we call "smart contract" is at the contract level
if the bitcoin system is not intelligent enough, the "smart contract" proposed by Ethereum can meet many application scenarios. The principle of the contract layer is to embed the code into the blockchain system, in this way to realize the smart contract that can be customized. In this way, on the blockchain system, once the terms of the smart contract are triggered, the system can automatically execute commands< Finally, the application layer. The application layer is very simple. As the name suggests, it is a variety of application scenarios and cases of blockchain. What we now call "blockchain +" is the so-called application layer. At present, the blockchain applications that have been implemented are mainly various blockchain applications built on
eth, EOS and other public chains. There are more applications of gambling and games, and the real practical applications have not yet appeared.
1. Data layer
the data layer is the lowest layer in the six hierarchies of the blockchain. We can understand the data layer as a database, but for the blockchain, this database is a tamperable and distributed database, which is what we call "distributed ledger"
in the data layer, that is, the "distributed ledger", the data information on the blockchain is stored, and the blockchain structure, asymmetric encryption technology, hash algorithm and other technical means of the block are encapsulated to ensure the security of the data in the case of the whole network being open. The specific method is:
in the blockchain network, nodes use consensus algorithm to maintain the consistency of data layer (that is, the distributed database), and use asymmetric encryption and hash algorithm in cryptography to ensure the non usurpation and traceability of the distributed database
This constitutes the bottom data structure of blockchain technology. However, it is not enough to have a distributed database. We also need to let the data information in the database be shared and exchanged. Next, we will introce the upper layer of the data layer - the network layer
Second, network layer
the network system of blockchain is essentially a P2P (point-to-point) network. Point to point means that there is no need for an intermediate link or centralized server to control the system. All resources and services in the network are distributed in the hands of each node, and the transmission of information is also a direct communication between the two nodes. However, it should be noted that P2P
(peer-to-peer) was not invented by Nakamoto, and the blockchain only integrates this technology
therefore, the network layer of blockchain is actually a particularly powerful point-to-point network system. In this system, each node can not only proce information, but also receive information, just like sending e-mail. You can write your own e-mail, and you can also receive the e-mail sent to you by others
in the blockchain network, nodes need to jointly maintain the blockchain system. Every time a node creates a new block, it needs to notify other nodes in the form of broadcast. After receiving the information, other nodes verify the block, and then create a new block on the basis of the block. In this way, the whole network can jointly maintain and update the general ledger of the blockchain system
however, what rules should the whole network follow to maintain and update the general ledger of the blockchain system? This involves the so-called "laws and regulations" (rules), which we will introce next: the consensus layer
Third, consensus layer
in the world of blockchain, consensus simply means that the whole network should maintain and update the general ledger of blockchain system according to a unified and agreed rule, which is similar to the rule of updating data. It is one of the core technologies of blockchain and the governance mechanism of blockchain community to let highly dispersed nodes reach consensus efficiently in the decentralized blockchain network
at present, the mainstream consensus mechanism algorithms include: proof of work of bitcoin (POW), proof of rights and interests of Ethereum (POS), proof of rights and interests of EOS (dpos), etc
we now introce the data layer, network layer and consensus layer. These three layers ensure that there are data, networks and rules for updating data on the network. However, there is no free lunch in the world. How can nodes actively participate in the maintenance of the blockchain system? Here is the incentive layer, which we will introce next: incentive layer< 4. Incentive layer
incentive layer is the so-called mining mechanism, which can be understood as incentive mechanism: you can get as much reward as you contribute to the blockchain system. With this incentive mechanism, the whole network nodes can be encouraged to participate in the data recording and maintenance on the blockchain
mining mechanism and consensus mechanism are actually the same truth. Consensus mechanism can be understood as the company's general rules and regulations, while mining mechanism can be understood as the reward rules for what you do well in the general rules and regulations
just like the consensus mechanism POW of bitcoin, it stipulates that more work pays more. Whoever can find the correct hash value first can get a certain amount of bitcoin reward
and Ethereum's POS stipulates that the older the holder is, the more likely he or she will be rewarded
it should be noted that the incentive layer is generally only available for the public chain, because the public chain must rely on the nodes of the whole network to jointly maintain data, so there must be a set of incentive mechanism to encourage the nodes of the whole network to participate in the construction and maintenance of the blockchain system, so as to ensure the security and reliability of the blockchain system
the blockchain is safe and reliable, and it is not intelligent enough, right? The contract layer we will introce next can make the blockchain system more intelligent
v. contract layer
Contract layer mainly includes various scripts, codes, algorithm mechanisms and smart contracts, which is the basis of block chain programming. What we call "smart contract" is at the contract level
if the bitcoin system is not intelligent enough, the "smart contract" proposed by Ethereum can meet many application scenarios. The principle of the contract layer is to embed the code into the blockchain system, in this way to realize the smart contract that can be customized. In this way, on the blockchain system, once the terms of the smart contract are triggered, the system can automatically execute commands< Finally, the application layer. The application layer is very simple. As the name suggests, it is a variety of application scenarios and cases of blockchain. What we now call "blockchain +" is the so-called application layer. At present, the blockchain applications that have been implemented are mainly various blockchain applications built on
eth, EOS and other public chains. There are more applications of gambling and games, and the real practical applications have not yet appeared.
8.
Blockchain Society: decoding global application and investment cases of blockchain
all formats are available
Author: Gong Ming
9.
There are e-books of this book, which can be shared with you. How to get the book and look at the pictures
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