如何分别好的区块链和网络,如何区分区块链

区块链和网络是两个相关的但又有所区别的概念，本文将介绍如何分别好的区块链和网络，以及三个相关关键词：区块链技术、分布式账本和去中心化应用。

区块链技术是一种分布式的数据存储技术，它可以让数据在多个节点之间进行安全的共享和交换。区块链技术可以确保数据的完整性和可靠性，因为它使用了加密技术来确保数据的安全性。区块链技术也可以让用户实现去中心化，因为它不需要中央服务器来保存数据，而是将数据分散存储在每个节点上。

分布式账本是一种基于区块链技术的数据存储系统，它可以让数据存储在多个节点上，从而实现安全可靠的数据共享。分布式账本可以让用户实现去中心化，因为它不需要中央服务器来保存数据，而是将数据分散存储在每个节点上。此外，分布式账本还可以提供安全性和可靠性，因为它使用了加密技术来确保数据的安全性。

去中心化应用是一种基于区块链技术的应用，它可以让用户实现去中心化，因为它不需要中央服务器来保存数据，而是将数据分散存储在每个节点上。去中心化应用可以提供安全性和可靠性，因为它使用了加密技术来确保数据的安全性。此外，去中心化应用还可以实现数据的共享和交换，从而让用户可以安全地进行交易。

总之，区块链和网络是两个相关但又有所区别的概念。区块链技术、分布式账本和去中心化应用是三个相关的关键词，它们可以帮助用户实现安全可靠的数据共享和交换，从而让用户可以安全地进行交易。

⑴Which one is better, blockchain application type or research type?

Application type is better. High efficiency and high safety factor.
1. High efficiency. Application-based blockchains can significantly improve the efficiency of banks in payment and settlement, while research-based blockchains cannot.
2. High safety factor. For the logistics industry, application-based blockchains can ensure the safety of goods, avoid express delivery warehouse explosions and package losses, and can also help solve the financing difficulties of small, medium and micro enterprises in the logistics supply chain, while research-based blockchains cannot achieve this. Such effect.

⑵ Classification of blockchains

Currently blockchains are divided into three categories, among which hybrid blockchains and private blockchains can be regarded as: generalized private chains, public blocks chain public blockchain. This means that any individual or group in the world can send transactions, the transactions can be effectively confirmed by the blockchain, and anyone can participate in its consensus process. Public blockchain is currently the earliest blockchain and the most widely used blockchain. Each virtual digital currency of the Bitcoin series is based on a public blockchain, and there is only one blockchain in the world corresponding to this currency.
Extended information
1. Industrial blockchain industry blockchains: multiple pre-selected nodes in the group are designated as bookkeepers, and the generation of each block is jointly decided by all pre-selected nodes (pre-selected nodes participate in the consensus process), others Access nodes can participate in transactions but do not interfere with the accounting process (essentially, it is managed bookkeeping, but it becomes distributed bookkeeping). How many pre-selected nodes and how to determine the bookkeeper for each block become the main risk points of the blockchain ), anyone else can make limited queries through the blockchain’s open API. Private Blockchain Private Blockchain ((privateblockchains)): Only the general ledger technology of the blockchain is used for accounting. It can be a blockchain with exclusive written permission from a company or individual. This chain is not much different from other distributed storage solutions. At present (December 2015), conservative giants (traditional finance) want to try private blockchains, while the applications of public chains, such as Bitcoin, have been industrialized, and the application products of private chains are still being explored. Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms. Blockchain is an important concept of Bitcoin. Essentially, it is a decentralized database.
2. At the same time, as the underlying technology of Bitcoin, it is a series of data blocks associated with encryption methods. Each data block contains a batch of Bitcoin network transaction information, verify the validity of its information (anti-counterfeiting) and generate the next block. In fact, the word blockchain does not appear in the original English Bitcoin white paper, but appears in blockchain. In the earliest Bitcoin white paper, blockchain was translated as blockchain. This is the time when the Chinese word "blockchain" first appeared. The Cyberspace Administration of China issued the "Blockchain Information Service Management Regulations" on January 10, 2019.It will come into effect on February 15, 2020. In a narrow sense, a blockchain is a chained data structure that combines data blocks in chronological order, and a tamper-proof and forgery-proof distributed ledger guaranteed by cryptography. Broadly speaking, blockchain technology is a new distributed infrastructure and computing method that uses blockchain data structures to verify and store data, distributed node consensus algorithms to generate and update data, and cryptography to Ensure the security of data transmission and access, using smart contracts composed of automated script code to program and operate data.

⑶ How to choose a blockchain and which one is better?

Everyone must pay attention to the strength and effectiveness of the team before cooperation, and understand what Bakerchain does in terms of blockchain. Good. It's highly rated in the industry.

⑷ What are the technical classifications of blockchain?

1. Public chain has no official organization or management agency, no central server, and participating nodes can freely access the blockchain in accordance with system rules. It enters the network without control, and 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.

⑸ How to identify the real blockchain digital currency

Whether a certain digital currency is a valuable currency is basically in the "angel round" stage at present. There are three judgment criteria, one is the team, the other is the economic model, and the third is industry demand.

The randomness of the team is too great and will not be discussed here. This article first conducts a detailed analysis of the economic model of digital currency. In subsequent articles, the author will analyze some digital currencies according to different industries.

Strictly speaking, the economic model involved in this article is not completely equivalent to the concepts described in economics. Specifically refers to the currency’s consensus mechanism and incentives in digital currency.incentive mechanism.

1. Consensus Mechanism

The consensus mechanism is the strategy and method for each node in the blockchain system to reach agreement, and should be flexibly selected according to the system type and application scenarios.

Commonly used consensus mechanisms mainly include PoW, PoS, DPoS, PBFT (and their variants), etc. In addition, based on the different application scenarios of blockchain technology and the characteristics of various consensus mechanisms, this article evaluates the technical level of various consensus mechanisms according to the following dimensions:

a) Compliance supervision: whether it supports Super The authority node supervises the nodes and data of the entire network;

b) Performance efficiency: the efficiency of transactions reaching consensus and being confirmed;

c) Resource consumption: the CPU, Network input, output, storage and other computer resources;

d) Fault tolerance: the ability to prevent attacks and fraud.

1 Industry background

Find industry pain points: Asset management requires a professional team and knowledge, but most digital currency investors now do not have it; digital The currency market fluctuates greatly, and investors are unable to preserve the value of their assets when the market falls.

2 Own advantages

Having been deeply involved in the stock and futures markets for many years, it has a mature and high-quality asset management team; the AI ​​big data team has strong technical strength.

3 Market Research

After conducting market research, it is estimated that the market value of asset management will be approximately US$1 billion in the next five years.

4 Total amount of digital currency

After considering the expected market value of asset management, development cycle and difficulty, consider issuing 2 billion digital currency XT based on Ethereum ERC20, and will never issue more .

5 Distribution method

Early investors hold 10%, the team holds 20%, business operations 10%, community construction 10%, and investors hold 50%.

6 Digital Currency Release/Repurchase Mechanism

The release mechanism is divided into three categories:

Category 1: The currency holding part for business operations is fully unlocked, and the purpose Limited to business and operational activities;

The second category: the release mechanism of the community construction part is that community members release exclusive information, cooperation platforms release exclusive project progress, etc., and based on the number of participating IDs, the corresponding proportion of XT is released (Publishers and participants each receive 50%) until all releases are completed (after the release is completed, subsequent rewards come from the platform profit pool);

The third category: investors hold mainstream digital currencies and are on the platform Asset management is carried out in the platform, and a certain amount of XT is released according to the exchange ratio. Early investors and the team hold part of it in synchronization, and it is unlocked in proportion;

The repurchase mechanism is: 50% of the profit earned (calculated in XT) % will be returned to currency holders; the remainder will enter the platform profit pool, and 50% of the XT in the profit pool will be destroyed on a monthly basis until the total amount of XT reaches 1 billion; the rest will be used as platform ecological construction funds;

7 Digital Currency Rights and Interests

Profit Sharing: Holding XT is a platform user and can enjoy 50% of the platform’s profits;

Platform Governance: Participation Platform activities enjoy XT rewards and airdrop activities from other project parties;

Function customization: based on platform AI big data, investors can purchase services optimized for personal trading strategies

⑹ Chain classification of blockchain

Two days ago, a friend asked many questions about blockchain on WeChat. One of the questions was how to classify the chain of blockchain. Blockchain can currently be divided into four categories: public chain, private chain, alliance chain and side chain. Beijing Muqi Mobile Technology Co., Ltd., a professional blockchain outsourcing development company, welcomes discussions for cooperation. The following will help you understand the characteristics of these blockchain chains and how to apply them. I hope it will be helpful to you.

1. Public chain - everyone can participate

Public chain means that anyone can read it, anyone can send transactions, and transactions can be effectively confirmed A blockchain in which anyone can participate in the consensus process.

The public chain adopts the proof-of-work mechanism (POW), proof-of-stake mechanism (POS), and share authorization proof mechanism (DPOS), and combines economic rewards and encrypted digital verification. And establish a principle that the economic rewards that each person can obtain are proportional to the workload. These blockchains are often considered to be completely decentralized.

Features:

1. Open source, because the operating rules of the entire system are open and transparent, this system is an open source system; 2. Protect users from the influence of developers, in the public domain Program developers in the chain have no right to interfere with users, so the blockchain can protect users who use the programs they develop; 3. The access threshold is low and anyone with sufficient technical capabilities can access it, that is, as long as there is a computer that can connect to the Internet Computers can meet the access conditions; 4. All data is public by default, although all associated participants hide their true identities. This phenomenon is very common. They generate their own security through their public nature, where every participant can see all account balances and all their transaction activity.

Case: There are many familiar figures in the public chain: BTC, ETH, EOS, AE, ADA, etc.

2. Private chain - rights are in the hands of a few people

A private chain refers to a blockchain whose write permission is only in the hands of one organization. Read permissions are either open to the public or arbitrarily restricted. Relevant applications include database management, auditing, and even a company. Although in some cases it is desirable to have public auditability, in many cases public readability is not a requirement.necessary.

Features:

1. Fast transaction speed. The transaction speed of a private chain can be faster than any other blockchain, or even close to not being a blockchain. the speed of a conventional database. This is because even a small number of nodes have a high degree of trust, and each node does not need to verify a transaction. 2. Good privacy, giving better privacy protection The private chain makes the data privacy policy on that blockchain exactly the same as in another database; there is no need to deal with access permissions and use all the old methods, but at least it says , this data is not publicly available to anyone with an internet connection. 3. Low transaction costs. Transaction costs are significantly reduced or even zero. Transactions can be carried out completely free or at least very cheaply on the private chain. If one entity controlled and processed all transactions, they would no longer need to charge fees for their work.

Case: The Linux Foundation, R3CEV Corda platform, and Gem Health network’s Hyperledger project are either developing or using private chains.

3. Alliance chain - partial decentralization

The degree of openness and decentralization of the alliance chain is limited. The participants are screened out in advance or designated directly. The read permission of the database may be public, or it may be limited to the participants of the system like the write permission.

Features:

1. Low transaction costs, transactions only need to be verified by a few trusted high-computing nodes without the need for confirmation by the entire network; 2. Nodes Easy to connect, if something goes wrong, the consortium chain can be quickly repaired through manual intervention, and allows the use of consensus algorithms to reduce block times, thereby completing transactions faster; 3. Flexible, if necessary, run a private blockchain community or Companies can easily modify the rules of this blockchain, revert transactions, modify balances, etc.

Case: Ripple has established an alliance chain for international remittances between Japan and South Korea and inter-bank remittances in Japan. At the same time, Xunlei Link, which has been popular for a while, is also a semi-open alliance chain.

4. Side chain - extended protocol

Strictly speaking, "side chain" is not a blockchain itself, but can be understood as an extension of the blockchain. Protocol. The early "side chain" was to solve the limitations of Bitcoin blockchain technology. Side chains are like pathways that connect different blockchains to each other to achieve the expansion of the blockchain. Side chains Completely independent of the Bitcoin blockchain, but the two ledgers can "interoperate" and interact.

Features:

1. Independence, side chain The benefit of architecture is codeIt is independent of data, does not increase the burden on the main chain, and avoids excessive data expansion. The side chain has an independent blockchain, an independent trustee or witness, and an independent node network. That is to say, the blocks generated by a side chain will only be broadcast among all nodes where the side chain is installed. . 2. Flexibility. All blockchain parameters of the side chain can be customized, such as block intervals, block rewards, transaction fee destinations, etc. Advanced users can also modify the consensus algorithm.

Case: LSK, RDN, ARDR and other currencies use side chain technology.

For the entire digital currency field, this year may still be a competition for the underlying public chain projects. The reason is that the current public chain as the infrastructure of the blockchain still has obvious shortcomings and cannot be realized yet. Truly safe, reliable and efficient. This also obviously restricts the development of the entire blockchain industry.

⑺Which blockchain wallet is easier to use

With the development of the blockchain industry to this day, the underlying layer and technology have become very mature. So the blockchain wallets of each company will not be very different.

Whether it is easier to use, in fact, it mainly depends on security, supported currencies and optimization of experience. Essentially, blockchain wallets are divided into two categories: hot wallets and cold wallets (hardware wallets).

1. Hot wallets can be equivalent to software wallets to a certain extent.

The advantage is that it is simple to operate and easy to manage, and is more suitable for entry-level users.

But the disadvantages are also obvious. Every transaction requires online verification, and data security cannot be guaranteed.

The relatively well-known hot wallets on the market such as imToken, Math Wallet, etc.

2. Cold wallets generally refer to hardware wallets.

The private key of the cold wallet will never touch the Internet, and the private key will never enter the network. A hardware wallet is a specialized electronic device used to store encrypted assets. Its function is to store private keys in an internal chip. The private keys never leave the device, so they are safe. Therefore, general hardware wallets are cold wallets.

Advantages: The private key is generated through a mnemonic phrase and is permanently retained inside the hardware wallet. It will not be leaked out, so security is high.

Disadvantages: It’s not very convenient to use, it doesn’t matter if you receive it or not, you just need to provide an address for the removal. To send, you need to connect the device to your computer or mobile phone. So it is not as convenient to use as a hot wallet.

The first consideration when choosing to use a hardware wallet is security, so generally if you want to truly protect your assets, you must prepare a hardware wallet.

Currently, there is no hardware wallet with particularly complete currency coverage on the market, but there is a blockchain wallet called TJ Wallet, which is the first safe and reliable software and hardware ecological wallet supported by Filecoin in China. Triple hardware encryption supports BTC, ETH, Filecoin and other mainstream currencies, and supports the expansion of all currencies.Considering convenience and security, it is a good blockchain wallet. The questioner can pay attention~

⑻ The technical classification of blockchain mainly includes

1. Public chain, no official organization, no management organization, and no central server. Participating nodes freely access the network in accordance with the rules of the system. There is no control and the nodes work based on a consensus mechanism. (Subversive: absolutely credible and open)