为广大币圈朋友提供币圈基础入门专业知识!
当前位置首页 > 区块链知识> 正文

区块链子链和主链链的区别,区块链子链和主链哪个好

发布时间:2023-12-06-13:47:00 来源:网络 区块链知识 区块   链子

区块链子链和主链链的区别,区块链子链和主链哪个好

近年来,区块链技术已经成为一种重要的新型技术,它不仅可以帮助企业实现数据安全和可信赖的网络环境,还可以帮助企业提高效率和减少成本。在区块链技术中,有两种主要的技术——子链和主链,它们之间有着重要的区别。今天,我们就来聊聊区块链子链和主链之间的差异以及哪种技术更加适合拓展。

区块链子链是指一种基于区块链技术的分布式数据库,它是一种独立的区块链网络,可以与其他区块链网络进行交互。子链的优势在于它可以让每个网络中的节点运行自己的协议,而不受其他网络的影响,因此可以更快地处理数据,并且可以更自由地实现功能。另外,由于子链的规模比较小,可以更快地实现可信赖的网络环境。

主链是一种基于区块链技术的分布式数据库,它是一种可以与其他区块链网络进行交互的独立区块链网络。主链的优势在于它可以让所有网络中的节点运行相同的协议,从而可以更好地保护网络的安全性和可靠性。另外,由于主链的规模比较大,可以更好地保护网络的可靠性和安全性。

拓展是指企业通过技术手段来扩大其网络规模,以实现更多的应用场景和更多的功能。在拓展的过程中,企业可以选择使用区块链子链或主链。

如果企业要快速实现拓展,则应该选择区块链子链。由于子链的规模比较小,可以更快地实现可信赖的网络环境,并且可以更自由地实现功能,因此可以更快地实现企业的拓展目标。

如果企业需要更长久地拓展,则应该选择主链。由于主链的规模比较大,可以更好地保护网络的可靠性和安全性,因此可以更好地保护企业的拓展成果。

总之,区块链子链和主链分别具有自己的优势,企业在选择这两种技术时,应根据自身的实际情况来选择更适合的技术,以更好地实现其拓展目标。


请查看相关英文文档

1. What are the blockchains?

Blockchain mainly solves the trust and security issues of transactions, so it proposes four technological innovations to address this issue:< br />(1) Distributed ledger means that transaction accounting is completed by multiple nodes distributed in different places, and each node records a complete account, so they can all participate in supervising the legality of the transaction and also can jointly testify for it.
Different from traditional distributed storage, the uniqueness of blockchain distributed storage is mainly reflected in two aspects: First, each node of the blockchain stores complete data according to the block chain structure. Traditional distributed storage generally divides data into multiple parts for storage according to certain rules. Second, the storage of each node in the blockchain is independent and of equal status, relying on the consensus mechanism to ensure storage consistency, while traditional distributed storage generally synchronizes data to other backup nodes through the central node. [8]
No node can record ledger data independently, thus avoiding the possibility of a single bookkeeper being controlled or bribed to record false accounts. Also because there are enough accounting nodes, theoretically speaking, the accounts will not be lost unless all nodes are destroyed, thereby ensuring the security of the accounting data.
(2) Asymmetric encryption and authorization technology. The transaction information stored on the blockchain is public, but the account identity information is highly encrypted and can only be accessed with the authorization of the data owner, thus Data security and personal privacy are guaranteed.
(3) Consensus mechanism is how all accounting nodes reach a consensus to determine the validity of a record. This is both a means of identification and a means of preventing tampering. Blockchain proposes four different consensus mechanisms, which are suitable for different application scenarios and strike a balance between efficiency and security.
The consensus mechanism of the blockchain has the characteristics of "the minority obeys the majority" and "everyone is equal". "The minority obeys the majority" does not entirely refer to the number of nodes, but can also be computing power, the number of shares, or other factors. A characteristic quantity that a computer can compare. "Everyone is equal" means that when a node meets the conditions, all nodes have the right to give priority to the consensus result, which will be directly recognized by other nodes and may eventually become the final consensus result. Taking Bitcoin as an example, it uses proof of work. Only when more than 51% of the accounting nodes in the entire network are controlled, it is possible to forge a non-existent record. When there are enough nodes joining the blockchain, this is basically impossible, thus eliminating the possibility of fraud.
(4) Smart contracts, smart contracts are based on these trustworthy and non-tamperable data and can be automated Enforce some predefined rules and terms. Take insurance as an example. If everyone's information (including medical information and risk occurrence information) is true and trustworthy, it will be easy to automate claims settlement in some standardized insurance products.

2. How to explain blockchain in a popular way

“Blockchain technology is considered to be the next generation of disruptive core technology after steam engines, electricity, and the Internet. If steam engines release people's productivity, electricity solves people's basic living needs, and the Internet completely changes the way information is transmitted, then blockchain, as a machine that builds trust, will likely completely change the way value is transmitted in the entire human society. ”


I have just come into contact with the blockchain, and there are too many basic knowledge that need to be understood and known. Don’t worry, today I will popularize this knowledge for you. Today let’s first take a look at what public chain, private chain, alliance chain and side chain are.

3. What are side chain and main chain in blockchain? Chain

Main chain: that is, an officially launched, independent blockchain network. It can be said that the entity that stores data in the blockchain is generally considered to be the main chain network itself. For example, BTC main network, ETH The main network and the EOS main network are both main chains.

Side chain: First of all, the essence of the side chain protocol is a cross-blockchain solution. Simply put, through this solution, data information can be Transfers between two blockchains. The original proposal of sidechains was based on the transfer of Bitcoin and other digital assets between multiple blockchains.

In layman’s terms, sidechains are like It is a channel that connects different blockchains to each other to achieve the expansion of the blockchain. The side chain is completely independent of the main chain, but the two ledgers can "interoperate" and achieve interaction.

Sidechain protocol - Sidechain protocol refers to (taking Bitcoin as an example): it allows Bitcoin to be safely transferred from the Bitcoin main chain to other blockchains, and can be safely transferred from other blockchains A protocol that returns the main chain of Bitcoin. The same principle applies when converting Bitcoin to Ethereum or other blockchains. So why do we need side chains, or what are the benefits of side chains?
< /p>

The functions that the main chain lacks are provided by the side chain.

For example, the Bitcoin network does not have the function of smart contracts, but this function can be realized through the side chain.< /p>

If the operating efficiency of the main chain is low, some functions of the main chain can be transferred to the side chain for implementation.

For example, the transfer speed of the main chain is very slow and there is no way to meet the requirements. For daily payment needs, we can develop the Lightning Network as a side chain to meet daily payments. Also due to low performance, Ethereum cannot support large-scale commercial-level DAPP (decentralized applications), which can be achieved through side chain development.< /p>

If you put aside the technical rigor, you can use another simpler way to understand side chains. All networks that provide support or services for the original main network can be called side chains. Don’t worry. Whether this side chain uses blockchain technology. For example:

Third-party payment network (Alipay/WeChat), you can imagine the bank network as the main chain, and third-party payment is a side chain.

Cryptocurrency trading considers free networks such as Bitcoin and other virtual currencies as the main chain, and the exchange can be regarded as a side chain.

RSK and Loom are separately developed side chains for the Bitcoin and Ethereum main chains respectively.

In the first application, the main chain and side chain are centralized

In the second application, the main chain is decentralized and the side chain is Centralized

The third application, the main chain is decentralized, and the side chain is also decentralized. With the deepening of blockchain technology, we can see human value exchange activities , will slowly transition from the first application to the third application.


The Xueshuo Innovation Blockchain Technology Workstation under Lianqiao Education Online is a school planning and construction development project of the Ministry of Education of China. The "Smart Learning Workshop 2020-Master's Degree Innovation Workstation" launched by the center is the only approved "blockchain technology professional" pilot workstation. The professional base is based on providing students with diversified growth paths, promoting the reform of the training model integrating professional degree research, production, and research, and building an applied and compound talent training system.

4. What are the different types of blockchains

The different types of blockchains are as follows

1. Divided by degree of openness: public chain, alliance chain , Private chain

2. Divide by application scope: basic chain, industry chain
There is a saying that currency is about consensus, and chain is about ecology.

3. Divide by original program: original chain, forked chain
This division may be more niche, and maybe there is such an understanding

Four , divided according to the degree of independence: main chain, side chain
There is another way to divide the blockchain according to whether the blockchain is independent enough.

5. Division by hierarchical relationship: parent chain, sub-chain
The last division method is also relatively niche, and let’s give a simple definition.

5. What is the value of the main chain in the blockchain, and what is its role in the implementation of the blockchain?

The main chain is the bottom layer of all blockchain applications. The technical foundation is like chips and operating systems. Whoever can become the main chain of the basic layer of the blockchain and accumulate a large number of users and scenarios may become giants such as Apple and Microsoft in the future.
However, for most scenarios of using and developing blockchain, it is not necessary to recreate a blockchain, but to develop its own applications based on the existing blockchain underlying layer or technical framework. Therefore, you only need to have a basic understanding of encryption algorithms, P2P technology, consensus algorithms, etc., and no in-depth research is required.
The primary goal of blockchain application development is to find a relatively mature blockchain bottom layer as the basis for application development. The blockchain bottom layer needs strong supporting facilities.Easy-to-use development interface or development framework, scalability, transaction frequency, etc.
Rongdu Technology is a listed financial technology company that currently provides main chain construction and development services. Those who are interested can learn more: http://www.erong.com/new/blockchain/backbone/index.html

6. 2018-10-05 Xiaobai learns about blockchain - what is a sub-chain

1. What is a sub-chain

Relative to the parent chain The simple understanding of the concept is that it is a blockchain built on the underlying parent chain, and the chain within the chain is the child chain.

2. Characteristics of sub-chains

1. Sub-chains are representatives of various industries or vertical fields of the blockchain, and they also subdivide various blockchain projects in various fields. collectively.

2. When a sub-chain is created, the relevant information of the sub-chain will be recorded in the parent chain, that is, the data uploaded to the chain must rely on the parent chain for preservation, validation, traceability, etc.

3. The sub-chain has the characteristics of efficient processing capabilities, convenience and wide coverage.

3. Application of sub-chain

Press one may be a relatively well-known sub-chain based on Mixin Network. It is mainly a sub-chain for identity authentication and data uploading. Chain is the first sub-chain connected to NULS. It is a blockchain project that uses blockchain technology to combat counterfeit products and provides brand merchants with the most credible technology to protect their brand image.

7. Popular explanation of what blockchain is

Question 1: What is blockchain? Can you explain the principle of 10-point blockchain in plain language: Go Centralized distributed accounting system
The core of blockchain technology is that all currently participating nodes jointly maintain transactions and databases. It makes transactions based on cryptographic principles rather than trust, so that any two parties who reach an agreement can Conduct payment transactions directly without the involvement of a third party.
?
Technically speaking, a block is a data structure that records transactions, reflecting the flow of funds for a transaction. The blocks of transactions that have been reached in the system are connected together to form a main chain, and all nodes participating in the calculation record the main chain or part of the main chain. A block contains the following three parts: transaction information, hash hash formed by the previous block, and random number. Transaction information is the task data carried by the block, specifically including the private keys of both parties to the transaction, the number of transactions, the digital signature of electronic currency, etc.; the hash formed by the previous block is used to connect the blocks to realize the past The order of transactions; random numbers are the core of transaction completion. All miner nodes compete to calculate the answer to the random number. The node that gets the answer fastest generates a new block and broadcasts it toAll nodes are updated and a transaction is completed.
1.1 What is Blockchain
Blockchain (BlockChain) refers to a technical solution that collectively maintains a reliable database through decentralization and trustlessness. This technical solution mainly allows any number of nodes participating in the system to associate and generate a series of data blocks (blocks) using cryptographic methods. Each data block contains all the information exchange data of the system within a certain period of time, and generates The data fingerprint is used to verify the validity of its information and chain to the next database block.
?
In layman’s terms, blockchain technology refers to a way for all people to participate in accounting. Behind all systems there is a database, which is a big ledger. Then who will keep this ledger becomes very important. At present, it is whoever owns the system who keeps the accounts. Each bank’s account books are kept by each bank, and Alipay’s account books are kept by Alibaba. But now in the blockchain system, everyone in the system has the opportunity to participate in accounting. If there are new transaction data changes within a certain period of time, everyone in the system can do accounting. The system will judge the person who has the fastest and best accounting during this period, write the recorded content to the ledger, and Send the contents of the ledger during this period to all other people in the system for backup. In this way, everyone in the system has a complete ledger. Therefore, this data becomes very safe. A tamperer needs to modify more than half of the system node data at the same time to truly tamper with the data. Such tampering would be extremely costly, making it nearly impossible. For example, Bitcoin has been running for more than 7 years. Countless hackers around the world have tried to attack Bitcoin, but so far there have been no transaction errors. It can be considered that the Bitcoin blockchain has been proven to be a safe and reliable system.
?
1.2 Why is there blockchain innovation?
Human beings need to communicate during their activities, and communication is based on information. In the past, information circulation was not convenient enough to satisfy market participants. There is a demand for information, so intermediaries and centers are born. This centralized system has problems such as high cost, low efficiency, value dispersion, "information islands" and insecure data storage. However, due to technical and environmental factors, this system continued to operate for many years until the emergence of the Internet. The starting point of the first generation of the Internet is the TCP/IP protocol, which is an open code that implements a unified format for peer-to-peer transmission of information by all nodes on the network, and brings the basic values ​​of freedom and equality required by a global unified market into programmed, protocol-based, and reliably Execution. The Internet eliminates low-value, high-cost intermediate chains and achieves low-cost and high-efficiency global information transmission in a decentralized manner.
?
However, the first generation of the Internet did not solve the problem of information credibility. Activities that can be decentralized on the Internet must be activities that do not require credit endorsement, and those that require credit guarantees must be centralized and third-party intermediaries.with activities. Therefore, Internet technology that cannot establish global credit has encountered great obstacles in its progress - people cannot participate in any value exchange activities on the Internet in a decentralized manner. To realize value exchange, people still need third-party intermediaries based on credit (such as banks, clearing agencies, exchanges). The global centralized credit system still has problems such as high operating costs, low efficiency, and vulnerability to attacks and damage. For example, each country's legal currency has different credit values ​​and incompatible clearing systems, which adds a lot of cost to global trade.
?
Therefore, what the second generation Internet must break through is: how to establish global credit in a decentralized manner? Let...>>

Question 2: What is blockchain? What does it mean in layman’s terms? What is China’s attitude towards blockchain? What can blockchain do? Blockchain, a great technology that accompanied the birth of Bitcoin, is currently being used in the financial field to significantly reduce transaction costs and improve efficiency, which is enough to excite Wall Street. However, this is just the tip of the iceberg. Its potential applications are very broad and will subvert every aspect of our lives in the future.
Blockchain is an important concept of Bitcoin. It is essentially a decentralized database and serves as the underlying technology of Bitcoin. One of the most basic characteristics of Bitcoin is decentralization. In recent months, financial giants have gradually begun to pay attention to Bitcoin's technology and used it in non-monetary fields, such as stock trading, election voting, etc. (1) Art Industry
Artists can use blockchain technology to declare ownership and issue numberable, 100% edition works in digital form for any type of artwork. It even includes a marketplace where artists can buy and sell through their website without the need for any intermediary services.
(2), Real estate industry
Use blockchain technology to solve various problems faced by everyone involved in real estate, including the naming process, land registration, agency intermediaries, etc.
(3), Insurance Industry
The financial industry has always been the most sensitive to advanced technology. Traditional banking and securities industry giants have been involved in the booming blockchain venture capital investment since 2014, with total global investment reaching US$1 billion within two years.
(4) P2P wallet
Personal assets can be traded through this P2P wallet in the future without going through any central institution, such as Bitcoin.
Most blockchains are in their infancy, mainly overseas. There are very few good domestic blockchain projects, so it is not recommended for any non-professionals to invest in blockchain projects. If you are very interested in blockchain technology and have a technical or financial background, it is recommended that you consider starting a business in this area. Agreement on the blockchainIn terms of system, the lowest layer is the underlying technology of the blockchain, including the technical protocols of the blockchain, as well as some platform routing and basic algorithms; in the middle layer, it is necessary to solve some application interfaces and the issuance and verification of some certificates, including Some industry platform services, big data analysis, etc. This is a very rough classification, and there should be more detailed classifications; the top ones are some applications of blockchain, including some financial applications and other aspects. Some applications, Internet of Things, etc.
Introduction to Bubi Blockchain
Bubi Blockchain has been focusing on the research and development and innovation of blockchain technology and products since its establishment. It has a number of core technologies and has achieved substantial results in many aspects. Radical innovation has resulted in a number of core technological achievements, such as: mathematically provable distributed consensus technology, fast large-scale ledger access technology, multi-chain general ledger technology that supports business expansion, and interconnection technology between heterogeneous blockchains. wait. On April 25, "Gege Points" introduced the concept of blockchain into the points system, jointly opened it up with multiple parties, issued and redeemed points, and promoted the circulation of points. Each cooperative institution can jointly participate in transaction verification, ledger storage, and real-time settlement; the third-party payment platform of the enterprise points issuer makes the entry and exit of points more flexible. Bubi has developed its own basic blockchain service platform, which has been applied in equity, supply chain, points, credit and other fields. Bubi has been committed to building an open value circulation network with decentralized trust as the core, allowing digital assets to flow freely.
A simple understanding of blockchain is a technology at the bottom of Bitcoin, which is also a peer-to-peer electronic cash system that can realize peer-to-peer value delivery. We should distinguish between Bitcoin, Bitcoin blockchain, blockchain and blockchain. Blockchain technology and other concepts. In countries with relatively developed finance in the past, finance and blockchain technology have a long history, and the legislation of digital currencies and blockchain networks is also very important. With the advent of the financial era, large financial institutions are studying blockchain technology. They have their own teams and conceptual technologies. Slowly, banks in various regions are also participating in digital currency discussions. The application and support of this technology are not only that. The influence of blockchain on enterprises is also huge. For larger domestic enterprises, Bubi Blockchain is also used in various equity, supply chain, points and other fields. Major domestic financial institutions and enterprises have taken a fancy to the new industry. value, they have developed their own blockchain platforms, and blockchain has instantly become a new innovative industry in China. In terms of overseas internationalization, the United States has already obtained 15 blockchain patents at the end of last year compared to China. Blockchain financial applications are entering a new stage in an all-round way. Various applications will become more and more in-depth, and related changes will also become more and more profound. It has attracted more and more attention and will form a huge new trend... >>

Question 3: What is blockchain technology? What exactly is blockchain? What is blockchain? 1. Data blockchain is an important concept in the Bitcoin financial system, which records transaction record data on the entire Bitcoin network, and thisThese data are shared by all Bitcoin nodes. Through the data blocks, we can query the history of each Bitcoin transaction. 2. Example: There are three persons A, B, and C. All funds of A and B are kept by C. And every financial transaction must be recorded by C. Now assume that A and B each have 1 million in custody of C. Then: A spends 80,000 yuan to B, then C's account book record will subtract 80,000 yuan from A's name, and add 80,000 yuan to B's name. If B transfers 50,000 yuan to A, C will add 50,000 yuan to A's name and subtract 50,000 yuan to B's name in the account book. A spends 50,000 yuan to B, then C's account book record will subtract 50,000 yuan from A's name, and add 50,000 yuan to B's name. 3. The role of the data blockchain is similar to that of C’s account record book. It records the user’s ownership of Bitcoin and the records of all users’ Bitcoin transactions. It’s just that this “account record book” is recorded by the mining software of every Bitcoin miner on the network. If a Bitcoin transaction is confirmed by the data blockchain, the relevant information will be recorded in the data blockchain. Bitcoin’s “account record book” is called the data blockchain. All data blockchains on the network form Bitcoin’s distributed network database system. 4. The essence of data blockchain technology is a decentralized and distributed structure of data storage, transmission and certification methods. It uses data blocks to replace the current Internet's dependence on central servers, so that all data changes or transaction items are recorded. On a cloud system, the self-certification of data during data transmission is theoretically realized. In a far-reaching sense, this transcends the traditional and conventional information verification paradigm that relies on a center and reduces the cost of establishing global "credit." This point-to-point verification will produce a "basic protocol", which is a new form of distributed artificial intelligence and will establish a new interface and shared interface between human brain intelligence and machine intelligence.

Question 4: What is blockchain: This explanation of blockchain is more understandable. Blockchain refers to a technology that collectively maintains a reliable database through decentralization and trustlessness. plan.
In layman’s terms, blockchain technology refers to a way for all people to participate in accounting. There is a database behind all systems. You can think of the database as a big ledger. Then who will keep this ledger becomes very important. Currently, whoever owns the system keeps the accounts. Tencent keeps the accounts of WeChat, and Alibaba keeps the accounts of Taobao. But now in the blockchain system, everyone in the system has the opportunity to participate in accounting. If there are any data changes within a certain period of time, everyone in the system can do accounting. The system will judge the person who has the fastest and best accounting during this period, write his recorded content into the ledger, and record this Within a period of time, the contents of the ledger are sent to all other people in the system for backup. In this way, everyone in the system has a complete ledger. In this way, we call it blockchain technology.
Blockchain technology has become the darling of the financial community in China and has become a hot topic. Domestic Puyin Group has launched Puyin, a tea-based digital currency.

Question 5: Explain in an easy-to-understand manner what blockchain is. Blockchain can be understood as a database system in a sense. The development of blockchain can be divided into 1.0 and 2.0
1.0 is represented by Bitcoin, and its main application is virtual currency or digital currency application. The blockchain at this time can only be used for simple digital currency transactions.
2.0 is represented by the now popular ethereum (Ethereum) and the upcoming hyperledger. The blockchain at this stage can not only meet the corresponding digital currency transactions, but also use smart contracts to customize currency or asset transactions. If we use the database analogy, the emergence of smart contracts can be understood as allowing users to define functions or stored procedures in the database and call and execute them.
Different from traditional databases, the blockchain introduces consensus mechanism, incentive mechanism, p2p (network), hash and other specific elements, making it open, decentralized and non-tamperable. characteristic.

Question 6: What is blockchain? Can anyone explain it in simple terms? Blockchain is the underlying technology of Bitcoin. It is like a ledger that records all transactions. It is decentralized. What is decentralization? For example, when you buy something on Taobao, you place an order and pay in Alipay. Alipay will not transfer the money to the seller until you receive the goods. Alipay is the third party in that center. Without it, it means decentralization, just like buying things offline. If you pay with one hand and get the goods with the other hand, there is no third party.
The blockchain itself is a series of cryptographically related data blocks generated.
Look carefully to see if it looks like a ledger. The pieces one by one are blocks, and connected together they are the blockchain.
Many companies are developing this technology, including ours, and its prospects are incredible. For details, you can go to our official website and hope to adopt it, thank you

Question 7: What is blockchain technology? What is blockchain? How to explain the concept of blockchain? People in each industry have different understandings, and relevant explanations are gradually emerging due to more and more real-life applications. With the popularization of this blockchain technology, the related results are getting bigger and bigger. If we want to understand this technology, we must have an in-depth understanding of reality.
In the past six months, the concept of blockchain has gradually become popular in China, and a blockchain whirlwind has taken off in the financial circle. Blockchain has attracted the attention and favor of more and more people in the industry due to its unique technical advantages. It is decentralized (or multi-centralized), highly transparent, and cannot be tampered with., no single point of failure and other characteristics are entering the vision of financial institutions and enterprises, at least in many fields such as digital currency, payment and exchange, registration and settlement, digital assets, traceability and anti-counterfeiting, supply chain, Internet of Things, etc. Discussion moves toward practical application.
"Blockchain" was first introduced with "Bitcoin" released in early 2009. Blockchain has become the basic protocol and technical application for the launch, recording, and circulation of Bitcoin. Although Bitcoin has been controversial since its inception and cannot even be regarded as a "currency" by governments and monetary authorities, the blockchain technology used in Bitcoin has been recognized by governments, including governments and monetary authorities. extensive attention.
Why has blockchain become a rapidly heating up hot technology and topic?
The most important of these may be that the launch of Bitcoin based on blockchain technology has opened up a new relationship with traditional society ( The exploration and attempt of new technologies and rule systems such as Internet user identity verification, wealth confirmation, transaction records, notarization and verification, which have little connection with offline) and are completely applied to the online world (online), provide people with the opportunity to adapt to the Internet society. Development provides alternative paths and unlimited imagination.
Judging from its application in Bitcoin, blockchain is a set of new network blocks (BLOCK, also called communities) formed by combining encryption technology with the Internet. Bitcoin configuration, netizen identity verification, and Bitcoin (value) confirmation formed by mining, Bitcoin transaction records, and extended encryption of Bitcoin cross-block flow (value transfer) (added block and transaction time identification, etc. Internet protocol rules and accounting (Ledger) system including block chain, full encryption, mutual authentication, etc., including factor) registration and verification. Precisely because Bitcoin is not a substitute for offline legal currency, but is issued and managed by non-legal currency authorities, mainly imitating the model of gold, and is completely new and decentralized protected and supported by basic Internet protocols and strict encryption technology. Internet currency (virtual currency) has thus formed a new set of currency rules and systems that are different from and not subject to real social laws, and can be bought, sold or exchanged with legal currency. It has been more than 8 years since Bitcoin was launched. There has been no record of funds or user information being stolen. Its security has been verified, and its efficiency and cost of fund settlement also have obvious advantages. This has made people's confidence in the blockchain technology used in Bitcoin continue to increase, and people have become more and more aware that although blockchain is a technology and protocol pioneered and applied by Bitcoin, the blockchain Chain is not the same as Bitcoin, and its application is by no means limited to Bitcoin. The application of blockchain can be decentralized or centralized; it can be a public chain model or a private chain model. Therefore, after Bitcoin, blockchain technology is also constantly developing and innovating, and constantly exploring new application areas, especially in the financial field.use.
The reason why blockchain is valued highly by more and more people is because the development and widespread application of the Internet have caused more and more economic exchanges and transaction activities to be conducted online, and the online world (or online world) society) is rapidly expanding, enriching and active, and online transactions must solve the efficiency and security protection issues of the parties' identity verification, value verification, transaction records, inspection and verification, etc., and require strict intermediaries and agreements (rules or constitutions). In this regard, traditional thinking and customary practices are to follow the development trajectory of the transfer of offline transactions to online and push the common rules and practices of the real (offline) society to the online (network) society. However, in practice, it is increasingly It is difficult to adapt to the needs of online transactions.
For example, for the identity verification of the parties, the natural choice is to use the information on the identity documents protected by the laws of various countries as the basis, and then add account or transaction passwords, as well as facial recognition, iris, fingerprints and other biometrics to conduct online transactions. Verification, but this method first makes the citizen identity information in the cross-border interconnected online world subject to the administrative jurisdiction of real society... >>

Question 8: Easy to understand Explain clearly what is blockchain. The English name of blockchain is Blockchain. Block literally means block, block, and chain means chain, chain. Therefore, together they are translated into blockchain.
1. Use cryptography technology to encrypt and decrypt so that records cannot be tampered with. Common blockchain encryption methods include hash algorithm, RSA algorithm, elliptic curve algorithm, etc.;
2. The huge amount of calculation needs to be supported by a reasonable reward mechanism. Because every transaction must be recorded, Bitcoin’s blockchain has more than 60 gigabytes so far. Every new transaction requires confirmation of the information related to the trading account to ensure that the transaction is valid. The huge amount of calculation requires a computer with powerful computing power to complete.
In order to encourage the participation of powerful computing power, Bitcoin provides two rewards: one is to issue a certain number of Bitcoins to these computers every day; instead, all transfer fees are awarded to these computers. (The technical term for these computers is "mining machines", and the people who hold the mining machines are called "miners".)
Biying China is working hard on the digitization of assets and has launched the digital currency crowdfunding platform Biying China.

Question 9: What is the so-called "blockchain"? Blockchain itself is a tool called decentralization and trustlessness. For example, when you graduate from university, the current practice is to have a certificate recognized and issued by an authoritative agency as your certificate. This setting is more troublesome, because this is a piece of paper, and paper can be forged, so there will be various gaps. The issuing authority is also a person, and there will be various gaps in the middle. As long as it is related to people, whoever There are various possibilities related to media. districtThe blockchain provides a great opportunity. As soon as you graduate, you will have a record on the blockchain. No one can change this record. This thing exists objectively. As a physical existence, you As a data entity, the blockchain was born. In this case, anyone who wants to check where you graduated can easily solve the problem. This is similar to the big data often involved in social networking (WeChat) and payment platforms (Alipay, Yibao).

Question 10: What does blockchain mean? Regarding blockchain, I think you have already seen the concept on the Internet. Let me explain it based on my understanding!
First, let’s talk about its characteristics: 1. Openness and transparency 2. Decentralization 3. Anonymity 4. Information cannot be tampered with, eliminated 5. No trust cost
Blockchain is like a public ledger , everyone has the right to record and read, and everyone will jointly supervise to ensure its accuracy, and the recorded content will be permanently saved, and can only be added but not deleted! However, as the number of blocks continues to increase, costs will increase and efficiency will decrease. (I’m not sure whether technology can be used to make up for this. I hope someone who understands technology can point it out.)
Blockchain is divided into public chain, private chain, and alliance chain. Public chain: accessible to everyone, everyone has read and write permissions, completely open, transparent and decentralized. Private chain: Open to individuals or institutions, in which the owner of the private chain can set various permissions to make it partially centralized. Alliance chain: Open to specific organizations or groups, it is also "partially decentralized". According to the ledger at the beginning, members can view and transact, but cannot record and confirm bills, or require permission from the alliance. (The latter two do not have cost and efficiency issues)
Regarding blockchain, countries have begun to recruit talents in this area. For this, you can search online for "Central Bank Recruiting Digital Currency R&D Personnel". In addition, you can increase your understanding of blockchain by understanding its existing applications. What we usually refer to generally refers to public chains. Currently, those used abroad include Bitcoin, Ethereum and other domestic blockchains. Chain
1. Open and transparent: Every piece of data is verified by everyone and can be viewed by everyone at any time.
2. Decentralization: For example, when we shop on Taobao, we conduct transactions through the intermediary Taobao, and blockchain allows both supply and demand parties to directly contact each other for direct transactions through blockchain technology.
3. Anonymity: No personal privacy information is required to complete transactions on the blockchain, only your unique alphanumeric signature is required.
4. Information cannot be tampered with or deleted: Once the data has been verified and recorded, no one has the authority to modify it, let alone delete it!
5. No trust cost: The trust crisis in reality will not appear in the blockchain. In the blockchain transaction, you do not need to trust the other party, as long as you have enough "digital information" for the transaction."Production" can only be carried out, and it is supervised by the entire network, and the transaction will not break the contract. If you have no idea about the cost of trust, think about how many intermediaries there are in your city, or just think about Jack Ma, you will know how big the cost of trust is.
I am still learning more about blockchain. I am Li Ailin. If you have any questions, you can discuss and learn together!

8. On-chain SimpleChain’s main and sub-chain tokens What is the circulation relationship?

Under the SimpleChain system, tokens are mainly divided into three categories: main chain tokens, sub-chain stable tokens and sub-chain non-stable tokens. Stable tokens are divided into three categories: Issuance anchored to credit currency, real assets or digital assets allows currencies, stable tokens and non-stable tokens to form a mutually convertible circulation relationship, as shown in the figure below:

Among them, stable tokens conform to the definition and function of currency, while non-stable tokens come from the "credit creation" of blockchain projects. In such a peer-to-peer circulation system, "bank" intermediaries do not need to exist. D relationship and credit guarantee are more direct. Monetary theory is still valid under corresponding conditions and is worthy of reference.

9. Blockchain types can be basically divided into Main chain, test chain.
When talking about the prospects of blockchain, people will list how it can change finance, current energy, retail, culture, social networking, games, Internet of Things, etc., but the meaning of blockchain’s existence is Lianxin will continue to empower the real economy, continuously drive the development of the real economy, and promote the development of the digital economy. For this ideal, Lianxin will move forward without forgetting the original intention of Zhenxing, so that Yuanlvzai can always succeed.

< p>10. 2018-10-02 Xiaobai learns about blockchain - what is the main chain

1. What is the main chain

The main chain can be understood as the officially launched, An independent blockchain network. It is a trusted blockchain network recognized by the blockchain community, and its transaction information is recognized by all members. Valid blocks will be appended to the main network after passing the consensus of the blockchain network. The blockchain on the block ledger.

2. Characteristics of the main chain

1. Compared with the test network, the main chain is the effective area that is officially launched. Blockchain is an independent blockchain network.

2. The first blockchain originally created can be called the main chain, and contracts and agreement blockchains can be deployed on the chain.< br />
3. Application of main chain

The most successful application of main chain is Ethereum.Most crowdfunding projects on the market are developed based on Ethereum, and their tokens are also tokens issued on Ethereum. It can be understood as: Ethereum is a computer operating system, similar to the Windows system, and in The various tokens on Ethereum are equivalent to various software on our computers. Developers can pay Ethereum to run projects on Ethereum.

博客主人唯心底涂
男,单身,无聊上班族,闲着没事喜欢研究股票,无时无刻分享股票入门基础知识,资深技术宅。
  • 37323 文章总数
  • 3637271访问次数
  • 3078建站天数