区块链中分分类账簿包括以下哪几种,区块链分类账与普通分类账有何不同

区块链分类账簿包括以下几种：资产账户、智能合约账户、挖矿账户、投票账户、收费账户等。

区块链分类账与普通分类账有一些不同，首先是去中心化，区块链分类账是一种去中心化的账本，它不由任何中心化机构控制，而是由多个节点组成的分布式网络来控制，每个节点都有一份完整的账本记录，只有当多数节点同意才能更改账本，因此更加安全。

其次是不可篡改，一旦账本被写入，数据将不可篡改，因为数据是由多个节点组成的去中心化网络来控制，只有当多数节点同意才能更改账本，而普通分类账是由中心化机构控制，任何一个人都可以更改账本，因此不可篡改。

最后是安全性，区块链分类账由多个节点组成的去中心化网络来控制，只有当多数节点同意才能更改账本，因此更加安全。而普通分类账是由中心化机构控制，任何一个人都可以更改账本，因此不够安全。

区块链分类账簿有资产账户、智能合约账户、挖矿账户、投票账户、收费账户等，与普通分类账有一些不同，它具有去中心化、不可篡改、安全性等优势，是一种新型的分类账簿，有望在未来成为主流。

Ⅰ What are the classifications and applications of blockchain projects

From the current mainstream blockchain projects, blockchain projects mainly fall into four categories: Category 1 : Coin type; second type: platform type; third type: application type; fourth type: asset tokenization.

Coins mainly serve as the "medium of exchange" in the field of blockchain assets. The medium of exchange refers to general equivalents, such as gold and silver notes in the past. (Trade blockchain assets on "Bihui Exchange")

Platform projects refer to the establishment of technology platforms to meet the development of various blockchain applications, which can reduce the cost of developing applications on the blockchain. threshold.

The scope of application projects is relatively wide, covering many fields such as finance, social networking, games, property rights protection, etc. It is also the fastest growing field of blockchain assets at present.

The asset tokenization project refers to the blockchain mapping of physical assets, that is, the physical assets are put on the chain. Currently, there are no more than 10 varieties.

01 Currency

The first category is currency projects, which are also the earliest blockchain projects. Currency projects mainly include projects such as Bitcoin and Litecoin. In addition, there is another type of asset that has the characteristics of anonymity. Its main functions include realizing payment while protecting the privacy of both parties. The well-known ones include Dash, Monero and Big Zero that use zero-knowledge proof. Coin (Zcash), etc. Currency mainly serves as the "medium of exchange" in the blockchain asset field. The medium of exchange is the general equivalent that you use to exchange for goods. For example, in the past, gold, silver, and banknotes could be used as media of exchange. There are currently more than 2,100 types of digital assets in the world, and the number of currency blockchain projects has grown rapidly recently. As of June 2018, Bitcoin still has the largest market value.

02 Platform Category

The second category is platform blockchain projects. The main function of platform blockchain projects is to establish a technology platform to meet the needs of various blockchain application development. The required technical requirements; simply put, platform applications allow developers to directly issue digital assets on the blockchain, write smart contracts, etc. A smart contract is a computer program that runs on a blockchain database and can be automatically executed under conditions set by its source code.

For example, if you develop a smart contract based on a house rental agreement on the blockchain, when the owner receives the rent, it will trigger automatic execution and give the apartment's security key to the tenant.

The main function of platform blockchain projects is to establish an underlying technology platform to allow developers to develop applications on the underlying technology platform. A considerable number of platforms are still under development. As of June 2018 , the one with the largest market value is Ethereum.

03 Application Category

The third category is application blockchain projects. Application projects are developed based on blockchain development platforms (such as Ethereum) and can solve various problems in the real economy. Blockchain projects that address many issues in the field.

For example, the blockchain-based prediction platform Augur, the blockchain-basedGolem, a computing power trading platform, VeChain, a luxury goods traceability platform based on blockchain, and OmiseGo, which provides asset exchange and transfer services based on blockchain. Using blockchain technology, these projects can better solve trust issues, cross-border circulation and other issues. At the same time, using smart contracts and tokens on the blockchain, automatic execution can be better realized, greatly improving the efficiency of social and economic activities. efficiency. The scope of applied blockchain projects is relatively wide, covering many fields such as finance, social networking, games, property rights protection, etc. It is also the field where the market value of blockchain projects is increasing the fastest.

04 Asset Tokenization

The fourth category is asset tokenization blockchain projects. Asset tokenization refers to linking blockchain assets to physical assets such as gold and U.S. dollars. , is a blockchain mapping of physical assets. As of February 2018, there are no more than 10 varieties. The more typical representatives are USDT, which is benchmarked against the US dollar, and Digix Dao, which is benchmarked against gold. Each DigixDAO token represents 1 gram of London gold. Silver Market Association certified gold. Asset tokenization has the advantages of convenient transactions and safekeeping. First, asset tokenization makes transactions easier. Because blockchain assets can be split, they have better liquidity.

For example, currently the real estate needs to be transferred as a whole. If the real estate can be tokenized, it can be purchased in pieces, making transactions more convenient. Secondly, tokenization of physical assets is more conducive to safekeeping. In physical transactions such as gold, it is easy to cause wear and tear and cause losses. However, after tokenization of physical assets, there is no need for physical transfer, which is more conducive to the custody of physical assets.

Ⅱ Blockchain, 4 types, how much do you know

——Hello, I am mentality, focusing on sharing my understanding of blockchain and investment thinking. hope this helps.

Based on different usage requirements and scenarios, blockchain is divided into 4 types: public chain, alliance chain, private chain and hybrid chain.

1. Public chain

Public chain means that anyone at any node in the world, at any geographical location, can enter the system to read data, send transactions, and compete. Blockchain that participates in consensus such as accounting. No institution or individual can tamper with the data in it, so the public chain is completely decentralized.

Bitcoin and Ethereum are both representatives of public chains. Public chains generally encourage participants to compete for accounting (i.e. mining) by issuing tokens to ensure data security and consensus updates.

Bitcoin generates one block every 10 minutes on average, and its POW mechanism is difficult to shorten the block time. The POS mechanism can shorten the block time relatively speaking, but it is more likely to cause forks. So the transaction needs to wait for more confirmations before it is considered safe.

It is generally believed that a block in Bitcoin is secure enough after 6 confirmations, which takes about an hour. Such a confirmation speed is difficult to meet commercial-level applications. Therefore, ETH and EOS supportPublic chains with more write speeds are constantly developing.

2. Alliance chain

Alliance chain refers to a blockchain that is jointly participated and managed by several institutions, with each institution running N nodes.

The data of the alliance chain only allows different institutions in the system to read, write and trade. The PKI-based identity management system transactions or proposals are initiated through digital certificates and are verified by the joint signature of the participants. A consensus is reached, so there is no need for proof of work (POW), and there is no digital currency (token), which improves the efficiency of transaction completion and saves a lot of computing costs (computing hardware investment and electricity energy consumption).

Normally, nodes participating in the alliance chain will be divided into different read and write permissions, which can support more than 1,000 data writes per second.

3. Private chain

Unlike the public chain, which is completely decentralized, the private chain’s access rights are controlled by an organization, and the participation qualifications of each node are controlled by the organization. Authorization control.

Since the participating nodes are limited and controllable, private chains often have fast processing speeds and can support more than 1,000 data writes per second, while reducing the transaction costs of internal nodes.

Nodes can participate under real names and therefore have financial attributes to confirm identity. The value of the private chain is mainly to provide a safe, traceable, non-tamperable, and automatically executed computing platform, which can prevent both internal and external security attacks or tampering of data, which is difficult to achieve in traditional systems.

The application scenarios of private chains are generally within enterprises, such as inventory management of branches, summary statistics of data from various places, etc. It can also be used in areas that can be supervised by the public, such as government budgeting and execution. Large financial groups are also currently inclined to use private chain technology.

4. Hybrid chain

When the respective advantages of public and private chains are combined, a hybrid chain will appear. The development of hybrid chains is difficult, but the prospects are broad.

In the future market, there will definitely be giant companies that develop underlying technologies and protocols. These giant companies will set up public chains, private chains or alliance chains for different purposes, based on performance and security. and the different needs of application scenarios, and then grafted on applications in different industries. For example, a communication public chain that supports high concurrency, a payment alliance chain that focuses on security, etc.

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Ⅲ The classification of blockchain according to the network includes

Legal analysis: In this application stage, people try to use blockchain to subvert the bottom layer protocol of the Internet and try to Blockchain technology is applied to the Internet of Things, allowingThe entire society has entered the era of intelligent Internet and formed a programmable society. According to the scope of the network, it can be divided into public chain, private chain and alliance chain. The so-called public means that it is completely open to the outside world, and anyone can use it at will. There is no permission setting, and there is no identity authentication. Not only can you participate and use it at will, but all the data that occurs can be viewed at will, and it is completely open and transparent.

Legal basis: "Blockchain Information Service Management Regulations" Article 2 Those who engage in blockchain information services within the territory of the People's Republic of China must comply with these regulations. If laws and administrative regulations provide otherwise, such provisions shall prevail. The term “blockchain information services” as mentioned in these regulations refers to the information services provided to the public through Internet websites, applications, etc. based on blockchain technology or systems.

IV What is Blockchain

In the simplest terms, blockchain is a distributed ledger.

To understand what this means, we first have to look at its opposite: a centralized ledger. Because blockchain technology started with finance, we will also introduce it below using banks as an example.

The following is our process for using bank debit card transactions:

You can swipe your card to purchase goods in stores.

The merchant sends a statement to your bank for the agreed upon amount.

Your bank will verify that you may have authorized the purchase.

The bank sends the money to the merchant.

Finally, the bank records this information in its ledger.

There’s a lot of technology involved here, but that’s basically it. The last step is important - the bank records all transactions made by the customer. This ledger goes all the way back to the first transaction the bank made.

This ledger is kept, maintained and regulated by the bank. You can read it in your online bank account, but you can't change it. The bank has complete control. If it decides to make a change, there's nothing you can do about it.

Crucially, if hackers were able to access a bank’s ledger, that could cause a lot of problems. They can change the account balance to make it look like certain transactions never occurred, etc.

This is why distributed ledgers are so cool.

Blockchain Network Visualization

If a bank operates on a distributed ledger, each member of the bank will have a copy of the ledger, and whenever any member of the bank When they make a purchase, they tell every other member of the bank.

Each member will validate the transaction and add it to the ledger (the added records are called "blocks"). This has some important benefits, as there is no centralized authority that can manipulate records. Hackers accessing one ledger won't be a big problem because other ledgers can easily verify it.

On the other hand, it requires a lot of work. In short, the second system is blockchain (at least in financial scenarios).

As mentioned above, blockchain is a decentralized list of transactions. If I send Xiao Ming 2 Bitcoins, I send a message to everyone in the network saying "I am sending Xiao Ming 2 Bitcoins" and they all record the transaction.

The future of blockchain, how will it change our lives?

One thing that is important about blockchain is that it is a public resource and no one really owns it because everyone owns it.

Blockchain is not just science fiction. We don’t need to understand the mechanism behind this technology, but you do need to understand that it may completely change our lives in the next 20 years.

This may sound bold, but remember, 20 years ago we were browsing the Internet on Netscape, using state-of-the-art Motorola flip phones, and buying our first DVD players. At that time, if we imagined that a computer could be held in our hands and that we could buy cars, make payments, and watch movies, it would have been considered a fantasy.

Although the impact of blockchain may not be as obvious as the Internet, nor as tangible as mobile phones, blockchain will effectively solve many worries in daily life. Such as intermediaries cheating people, transaction delays, etc. In our current lives, middlemen are everywhere and we take them for granted as a part of life. If one day these intermediaries cease to exist, you will find that the world will become a different place.

Imagine that by 2040, blockchain may become a mature and widely used technology. When one day you can't live without the blockchain just like you can't live without the Internet now, you will be surprised to find that this decentralized accounting technology has simplified the complexity and become a part of your lifestyle

Ⅳ What are the classifications of blockchain and what is the structure of blockchain

The concept of blockchain has been quite popular recently, and it comes from the implementation of cryptocurrencies such as Bitcoin. , but now this technology has been gradually used in various fields. So do you know what the classifications of blockchain are? What is the structure of blockchain? Let’s follow us to find out more.
What are the classifications of blockchain?
1. Public Blockchains (PublicBlockChains)
Public Blockchain means: any individual or group in the world can send transactions, and the transactions can be effectively confirmed by the blockchain, and anyone can participate its consensus process. The public blockchain is the earliest blockchain, and it is also the most widely used blockchain at present. The virtual digital currencies of all major bitcoins series are based on the public blockchain. There is one and only one corresponding to this currency in the world. Blockchain.
2. United (Industry) Blockchain (ConsortiumBlockChains)
Industry Blockchain: Multiple pre-selected nodes are designated within a certain group as bookkeepers. The generation of each block is jointly decided by all pre-selected nodes (the pre-selected nodes participate in the consensus process), and other access nodes You can participate in transactions, but you don’t have to worry about the accounting process (it is essentially still managed accounting, but it becomes distributed accounting. How many nodes are pre-selected and how to determine the accountant of each block to become the main owner of the blockchain Risk point), anyone else can conduct limited queries through the API opened by the blockchain.
3. Private Blockchain (privateBlockChains)
Private Blockchain: Only uses the general ledger technology of the blockchain for accounting. It can be a company or an individual, and has exclusive access to the writing of the blockchain. With access permissions, this chain is not much different from other distributed storage solutions. At present (Dec2015), conservative giants (traditional finance) want to experiment with private blockchains, while public chain applications such as Bitcoin have been industrialized, and private chain application products are still being explored.
4. Sidechain (Sidechain)
Sidechain is a blockchain used to confirm data from other blockchains. Through the two-way peg (TwoWayPeg) mechanism, various assets such as Bitcoin and Ripple coins can be Transfers are realized on different blockchains at a certain exchange rate.
What is the structure of blockchain?
1. Basic network layer: The basic network layer consists of a data layer and a network layer. The data layer includes underlying data blocks and related data encryption and timestamp technologies; the network layer includes distributed networking mechanisms, Data dissemination mechanism and data verification mechanism, etc.
2. Intermediate protocol layer: The intermediate protocol layer consists of a consensus layer, an incentive layer, and a contract layer. The consensus layer mainly includes various consensus algorithms of network nodes; the incentive layer integrates economic factors into the blockchain technology system. , mainly including the issuance mechanism and distribution mechanism of economic incentives; the contract layer mainly includes various scripts, algorithms and smart contracts, which is the basis of the programmable features of the blockchain.
3. Extension layer: This layer is similar to a computer driver and is designed to make blockchain products more practical. There are currently two categories. One is various trading markets, which are important channels for exchanging fiat currencies for cryptocurrency. They are simple to implement, get money quickly, and have low costs, but the risks are also high. The second is the expansion implementation in a certain direction. For example, based on the Yishu side chain, it can provide customized services for third-party publishing organizations, forum websites and other content producers.
4. Application service layer: As the most important link in the blockchain industry chain, the application service layer includes various application scenarios and cases of blockchain, including programmable currency, programmable finance and programmable society.
The above are the blockchain classifications brought to you by the editor? What is the structure of blockchain? of the entire content.

VI The technical classification of blockchain mainly includes

1. Public chain, no official organization, no management organization, and no central server. Participating nodesAccess the network freely according to the rules of the system, there is no control, and the nodes work based on a consensus mechanism. (Subversive: absolutely trustworthy and open)

VII What are the technical classifications of blockchain?

1. Public chain, no official organization or management agency, no central server , participating nodes freely access the network in accordance with system rules and are not controlled. The nodes work based on the consensus mechanism. (Subversive: absolutely credible and open)
Typical case: Digital currency represents Bitcoin
2. Private chain is established within a group, and the operating rules of the system are set, modified or modified according to the requirements of the group Read permissions are subject to certain restrictions, while retaining the authenticity and partial decentralization of the blockchain. (Relatively trustworthy and public)
Typical case: R3
3. Alliance chain, jointly initiated by several institutions, is between the public chain and the private chain, and has the characteristics of partial decentralization. The read permission on the District Quick Chain may be public or partially public, that is to say, multiple pre-selected nodes are designated internally as bookkeepers, and the pre-selected people compete for the book-keeping rights, and other access nodes can participate in transactions. But don’t ask about the accounting process. (The abilities of the pre-selected candidates cannot be uneven). ?
(relatively credible and open)
Existing cases: Hyperledger
Example: ?Take loan diversion as an example, when the user jumps to the other party's webpage through our link to register, The docking party can choose to lie and say that it has not received the user's registration request. But if we put the user registration behavior on the block, if the docking party wants to receive the user registration behavior, it must pay us at the same time when receiving it.

Ⅷ The classification of blockchain according to the network includes

The classification of blockchain according to the scope of the network includes public chain, alliance chain, and private chain. The details are as follows: 1. Public chain : Mainly refers to deployment within the Internet. There is no special permission setting, and there are no other conditions for login. Anyone can directly download the node to use it, and anyone can also directly use it through a customer. There are no restrictions on how to connect a node, and the data in it can also be accessed arbitrarily; 2. Alliance chain: It is an alliance network composed of several node members. This type is mainly used in In a business environment, for example, between multiple businesses, government affairs, banking, taxation, etc., they can form an alliance to serve a specific scenario, such as between a company and its customers, suppliers etc. can form an alliance network. Compared with the public chain, the alliance chain generally has an identity authentication. Not everyone can directly join the alliance chain network. It has an identity authentication. rights, and also has more protection for data; 3. Private chain: more within the enterprise, such as a group enterprise, between its various departments, and between its subsidiaries, from this perspective , these three types, theyOne of the main differences is the difference in network deployment based on different application scenarios and the distribution range of a network. It is a flexible concept. The three are based on different network ranges and application scenarios. A division is not a strict definition.

Ⅸ The technical classification of blockchain mainly includes

including public chain, alliance chain, private chain and so on. The emergence of these lead-up technology classifications is mainly to solve different usage scenarios and needs of the public chain. The public chain is relatively transparent, and the security is jointly maintained by network participants. The delay and high handling fee cost caused by its decentralization cannot be tolerated. On the other hand, consortium chains and private chains have more flexible access control and faster network speeds. Blockchain is a decentralized, digital ledger technology that is secure, transparent, and cannot be tampered with.