区块链账本设计与实现实验报告,区块链账本技术

区块链账本技术是一种分布式账本技术，它通过分布式账本的方式记录和管理数据，可以更加有效地实现资产的存储和交易。本文将介绍三个与区块链账本技术相关的关键词：共识机制、去中心化应用和智能合约。

共识机制

共识机制是指在区块链网络中，多个节点之间通过一种特定的算法来协商达成一致，从而达成共识的一种机制。共识机制是区块链网络的核心技术，它可以确保网络中的数据可靠、安全、可追溯。最常见的共识机制有比特币的工作量证明机制（POW）和以太坊的权益证明机制（POS）。

去中心化应用

去中心化应用（DApp）是基于区块链技术的应用，它无需中心化的第三方机构来管理，而是通过分布式账本的方式来进行数据的存储和管理。去中心化应用的特点是安全、可靠、去中介、可追溯，它可以被广泛应用于金融、支付、法律、政府等领域。

智能合约

智能合约是一种特殊的计算机程序，它可以实现自动化执行合同的功能。智能合约可以根据设定的规则，在区块链上进行自动执行，它可以实现以太坊上的去中心化应用，也可以用于智能投资、智能保险等领域。智能合约的优势在于它可以节省时间、降低成本、提高效率，是区块链技术发展的重要组成部分。

以上是三个与区块链账本技术相关的关键词：共识机制、去中心化应用和智能合约，它们是区块链技术发展的重要组成部分，可以使区块链技术在金融、支付、法律、政府等领域的应用更加广泛。

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1. "Blockchain Principles, Design and Applications" pdf download and read online, please ask for Baidu Netdisk cloud resources

"Blockchain Principles, Design and Applications" ( Yang Baohua) E-book network disk download for free online reading

Resource link:

Link: https://pan..com/s/1DdjQcCL5D84cnoqm-HcBjg Extraction code: 8u8b

Book title: Blockchain Principles, Design and Application

Author: Yang Baohua

Douban score: 7.2

Publisher: Machinery Industry Press

Publication year: 2017-8-21

Number of pages: 366

Content introduction:

This book is designed by Hyperledger Core Written by a developer, it is a professional guide to blockchain development and implementation. From the shallower to the deeper, it systematically introduces the essence of Hyperledger Fabric design, application development, etc. The book is divided into two parts: theory and practice; Chapters 1 to 3 introduce the origin, core ideas and typical application scenarios of blockchain technology; Chapters 4 to 5 focus on introducing a large number of distributed technologies that appear in blockchain technology. System technology and cryptographic security technology; Chapters 6 to 8 introduce three typical open source projects in the blockchain field: Bitcoin, Ethereum and Hyperledger; Chapters 9 to 11 take the Hyperledger Fabric project as an example to explain in detail Installation and deployment, configuration management, and practical experience in using Fabric CA for certificate management; Chapter 12 focuses on the core architecture design of the Hyperledger Fabric project; Chapter 13 introduces relevant techniques and examples of blockchain application development; Chapter 14 introduces The design and development of the blockchain service platform, and the relevant knowledge of building a service platform using the Hyperledger Cello project. This book covers the latest technologies in the field of blockchain and distributed ledgers, helping readers deeply understand the core principles and typical design implementations of blockchain, as well as efficiently develop distributed applications based on blockchain platforms.

About the author:

Yang Baohua

Ph.D., graduated from Tsinghua University. Chairman of the Hyperledger Greater China Technical Working Group, Chief Consultant of IBM Greater China Blockchain Technology Community, and Senior Researcher. He has presided over the architecture design and R&D implementation of multiple large-scale system platforms. He is an early researcher and practitioner of blockchain, cloud computing, big data and other technologies. He loves open source technology and has contributed to open source projects such as OpenStack and OpenDaylight. He is the core designer and developer of the Hyperledger Fabric project and the initiator of the Cello and Fabric-SDK-Py projects. The personal homepage is https://yeasy.github.com.

Chen Chang

Graduated from Tsinghua University. CTO of Zhigui Technology, former senior executive of IBMSenior researcher. Technical directions include cloud computing, blockchain, machine learning, etc. He is an early researcher and promoter of blockchain technology and a core developer of the Hyperledger project. He has rich practical experience in blockchain applications. He was responsible for the architecture design and implementation of blockchain solutions in the financial industry, and led the development of several blockchain service platforms.

2. Blockchain Graduation Project Proposal

Background of the project research:

With the development of modern technology and information industry At this stage of development, the fourth industrial revolution is beginning to take shape. The world is about to enter a technological era with new technologies such as the Internet and artificial intelligence as the core. At the same time, blockchain technology has emerged as the times require and has become the focus of many international governments and industries. hotspot object. Blockchain technology has been regarded as the core technology with the greatest potential to trigger the fifth round of disruptive revolution after steam engines, electricity, information and Internet technology. In the past 10 years, with the strong support of the government and policies, the development situation of my country's philanthropy has been relatively optimistic. However, as the scale of charity continues to develop and expand, my country's public welfare undertakings have gradually revealed some shortcomings. The biggest problems existing in traditional public welfare undertakings are insufficient credibility, imperfect internal management of charitable organizations, and high costs. However, many Internet public welfare service companies are currently actively using the new technology of blockchain to solve this problem. Blockchain technology has the characteristics of decentralization, information traceability and non-tampering, openness and transparency, and smart contracts. It can make up for the shortcomings of traditional public welfare undertakings such as opaque information and low management efficiency. Blockchain technology will enter public welfare undertakings and will Bring new development opportunities to the charity industry.

The main content of the research: This topic mainly includes the following three aspects:

[if !supportLists] 1. [endif] Combination of blockchain technology and public welfare Problems that arise and solved.

[if !supportLists] 2. [endif] Make a public welfare query webpage based on blockchain technology

[if !supportLists] 3. [endif] The query system Application issues and explanation

Purpose of the research:

As the scale of my country’s public welfare continues to develop and expand, our shortcomings have also been exposed. Insufficient credibility, charitable organizations There is a lack of management, and the use of blockchain technology can solve this problem. This technology will track and store data and behaviors throughout the donation process, realize the complete disclosure of the public welfare chain, enable donors to effectively supervise, avoid shortcomings such as low efficiency and clear fund flows, and control risks for public welfare projects, improving Credibility and transparency of public welfare projects promote the development and progress of public welfare projects and enhance trust between people. Public welfare enterprise based onThe attributes and characteristics of the blockchain system can implement full-cycle tracking, evidence storage and auditing of data and behavior in the public welfare process, so that all parties involved in public welfare projects can conduct full-process tracking and effective supervision of the project, and avoid human-related corruption in public welfare. Reduce the shortcomings of efficiency, thereby providing rational methods for controlling risks and judging effects for public welfare projects, improving the transparency of public welfare undertakings, and promoting public welfare development.

Significance of the project research: This project intends to develop an open and transparent system for tracking public welfare donations based on blockchain technology and combined with the actual development of public welfare undertakings in my country. Through in-depth analysis of blockchain technology and charity business, we found that blockchain technology has natural advantages in solving the problem of public welfare transparency. Blockchain technology can be understood as a distributed accounting method that can record all transaction information and ensure that it cannot be tampered with. This determines that wherever justice, fairness, and integrity are required, blockchain has great technology. Room to play. At the same time, the addition of smart contracts directly solves the business problem of earmarked funds.

Eventually, trust between citizens will be enhanced, donation channels will be accelerated, and the development of social donations will be promoted

2. Literature review (current status and development of relevant research at home and abroad Trend)

[if !supportLists] (1) [endif] Current status of foreign blockchain-related industries

China and Europe are gradually occupying the world in blockchain industry policies, and the EU is The European Blockchain Observation Forum has been established in February 2018. Its main responsibilities include: policy determination, industry-university-research linkage, cross-border BaaS

(Blockchain as a Service) service construction, standard open source formulation, etc. Investing 5 million euros in Horizon2020 as a blockchain research and development fund (before December 19, 2018), it is expected that investment in blockchain will reach 340 million euros within three years (2018-2020). In the United States, due to different policies among states, although blockchain is still a craze among American start-ups, the promotion of industrial policy has been slow. The Middle East, led by Di Pai, is leading the trend of blockchain. The government is taking the lead and enterprises are cooperating to explore new technology applications of blockchain. Japan and South Korea are also relatively active in the Asia-Pacific region. Japan is dominated by NTT and the government provides support. South Korea uses finance as an entry point to explore blockchain applications. Isism is also a constant threat to all areas of Chinese society. A comprehensive review of the development status of new media culture in major foreign developed countries, summarizing experiences, and drawing lessons have certain implications for the development of new media culture in China.

[if !supportLists] (2) [endif] Current status of domestic new media research

China’s State Council issued the “Thirteenth Five-Year Plan for National Informatization”, and new technologies such as blockchain, big data, artificial intelligence, and machine deep learning have become the focus of the country’s layout. The People's Bank of China issued the "Thirteenth Five-Year Plan for the Development of Information Technology in China's Financial Industry", which clearly proposed to actively promote research on the application of new technologies such as blockchain and artificial intelligence, and organize pilot projects for national digital currencies. In October 2017, the Ministry of Industry and Information Technology released the "White Paper on China's Blockchain Technology and Application Development", which is the first official guidance document for blockchain.

Governments across the country, especially in coastal areas, have established blockchain experimental sites and research institutes. At present, the governments of Shenzhen, Hangzhou, Guangzhou, Guiyang and other places are actively establishing blockchain development zones and providing special support policies. China Guangzhou officially released 10 Guangzhou blockchain strategies in December 2017 to create a blockchain enterprise technology innovation zone in Huangpu District and Development Zone. In March 2018, the Shenzhen Municipal Economic, Trade and Information Commission issued the "Notice of the Municipal Economic, Trade and Information Commission on Organizing and Implementing the Second Batch of Support Plan for the New Generation Information Technology and Information Security Transformation of Shenzhen's Strategic Emerging Industries in 2018". The district Blockchain is on the list of support directions. This is the fifth local government in China to introduce support policies for blockchain after Guangzhou, Guiyang, and Gehangzhou.

(3) Current status of blockchain in the open source field

Hyperledger (Hyperledger)

Hyperledger (Hyperledger) is developed by the Linux Foundation The open source project to promote blockchain digital technology and transaction verification, launched in 2015, has attracted the participation of many companies including IBM, Intel, Fujitsu, UPS, Cisco, Huawei, Redhat, Oracle, Samsung, Tencent Cloud, Internet Finance, etc. Currently, There are already more than 200 member units, and Bran Behlendorf, founder of the Aache Foundation, serves as the executive director of the ledger project.

The goal of the Hyperledger project is to allow members to work together to build an open platform to meet user cases from many different industries and simplify business processes. Process Ledger has multiple blockchain platform projects, including the Fabric project contributed by BIM, the Sawtooth project contributed by Intel, and Iroha, Burrow, Indy, etc.

The development status of blockchain in the field of standards

ITU-T

ITU-T (International Telecommunication Union Standardization Organization) from 2016 to 2017 At the beginning of the year, SG16 (Study Group), SG17 and SG20 respectively launched research on the overall needs and security of distributed ledgers to attract application in the Internet of Things. Established three focus groups (Focus Group on Distributed Ledger (FG DLT), Focus Group on Data Processing and Management (FG DPM), and Focus Group on Fiat Digital Currency (FG DFC)), focusing on blockchain and distributed ledger respectively. Technology application and service research, establishing a trustworthy Internet of Things and smart city data management framework based on blockchain, and carrying out standardization work on blockchain applications based on digital currency. Huawei serves as the chairman of the Architecture Group of the Focus Group on Distributed Ledger (FG DLT) and the Blockchain Group of the Focus Group on Data Processing and Management (FGDPM).

Two committees of CCSA (China Communications Standards Association) have established subgroups and projects respectively:

CCSA TC10 (Internet of Things Technical Working Committee) Established in October 2017, the Internet of Things Blockchain Subgroup: Responsible for the application research and standardization of blockchain technology in the Internet of Things and its covered areas such as smart cities, Internet of Vehicles, edge computing, Internet of Things big data, Internet of Things industry applications, logistics and intelligent manufacturing, and is led by China China Unicom technical experts serve as team leaders, and Huawei technical experts serve as deputy team leaders.

The Blockchain and Big Data Working Group under CCSA TC1 (Internet and Application Technology Working Committee) completed two blockchain industry standards: "Blockchain: Part 1 Overall Technical Requirements for Blockchain ” and “Blockchain: Part 2 Evaluation Indicators and Evaluation Methods”, in which Huawei actively participated.

JPEG

During the 78th JPEG Conference in February 2018, the JPEG Committee organized a special session on blockchain and distributed ledger technology and their impact on the JPEG standard. Meeting. Taking into account the potential impact of technologies such as blockchain and distributed ledgers on future multimedia, the committee decided to establish an ad hoc group to explore use cases and standardization needs related to blockchain technology in a multimedia environment, with a focus on imaging and multimedia applications. standardization work.

IETF

The "Decentralized Internet Infrastructure ProposedRG

(Research Group) was established at the IETF99 meeting in June 2017, planning to study the blockchain architecture. and corresponding standards. In 2018, IETF will likely pay more attention to the implementation and development of blockchain interconnection standards on blockchain.



3. The research to be carried outResearch methods (plans, technical routes, etc.) and feasibility demonstration

This topic mainly studies the research methods adopted in conjunction with the application of blockchain technology in charitable donations:

1 , Use the literature method to collect relevant theories, use information retrieval, screening and other methods to collect literature materials and related theories, understand the current situation of blockchain technology, and master the blockchain decentralization technology.

2. Combine the technology with public welfare by combining theory and practice. Complete improvements to the system.

3. Use the method of comparative analysis to discuss the current development status of new media operations from both domestic and foreign aspects, as well as existing problems in the development of my country's new media operation models, and look forward to the development prospects of this technology field.

Feasibility demonstration:

1. Technical feasibility. The research goals involved in this topic already have considerable theoretical foundations at home and abroad. Through literature survey, we can learn about actual, reliable and useful information data, and the actual requirements are not difficult.

2. Economic feasibility. The research on this topic can be done by accessing literature and materials through the Internet and libraries. It is convenient and feasible and does not require a lot of economic consumption. Therefore, from an economic point of view, it is completely feasible.

3. Operational feasibility. This topic requires the combination of blockchain technology and public welfare, especially the tracing of these applications. A comprehensive analysis of the graduation project system on this topic can be achieved through the analysis of both Study the literature and study the existing information documents, use the data you collected to organize and analyze, apply what you have learned, and complete this project completely. From an operability point of view, it is completely feasible.

4. Expected results (or expected results)

1. Through research on the data, clarify the relevant concepts of blockchain technology, skillfully use dapp, and create a web page.

2. Through distributed applications, creating a system that allows the public to quickly browse and understand the public welfare process will increase convenience for the further development of my country's public welfare undertakings.

3. I hope that I can continue to learn and make progress from the process of writing this paper. Being able to master the relevant knowledge of blockchain will be helpful to your future career.

3. What are the characteristics of blockchain

Characteristics of blockchain

One of the four characteristics of blockchain: non-tampering

The most easily understood feature of blockchain is that it cannot be tampered with.

Immutability is based on the unique ledger of "block + chain": blocks containing transactions are continuously added to the end of the chain in chronological order. To modify the data in a block, all blocks after it need to be regenerated.
One of the important functions of the consensus mechanism is to make it extremely costly to modify a large number of blocks, making it almost impossible. Taking blockchain networks that use proof-of-work (such as Bitcoin and Ethereum) as an example, only 51% of the computing power can regenerate all blocks to tamper with data. However, destroying data is not in the self-interest of players with large computing power, and this practical design enhances the reliability of data on the blockchain.
Generally, the transaction data in the blockchain ledger can be regarded as not being "modified", it can only be "corrected" through approved new transactions. The process of modification will leave traces, which is why the blockchain is said to be tamper-proof. Tampering refers to alteration or distortion by false means.
In commonly used files and relational data, the system itself does not record modification traces unless special design is adopted. The blockchain ledger adopts a different design from files and databases. It draws on the actual ledger design - retaining record traces. Therefore, we cannot "modify" the ledger without leaving traces, but can only "amend" the ledger (see Figure 2).

Figure 6: Bitcoin is organizationally decentralized and logically centralized

In envisioning future organizations At that time, the ideal prototype in our minds was often the Bitcoin organization: a completely decentralized autonomous organization. But in practice, for the sake of efficiency and advancement, we will move slightly closer to a centralized organization and eventually find a suitable balance point.

Now, among blockchain projects that create and issue tokens through Ethereum’s smart contracts and operate in a community or ecological manner, the ideal state of many projects is an organization similar to Bitcoin , but the actual situation is between a completely decentralized organization and a traditional company.

When discussing decentralized self-organization, the fourth feature of blockchain, we are actually moving beyond the world of code to involve human organization and collaboration. Now, various discussions and practical explorations have also revealed the significance of blockchain beyond technology: it may serve as infrastructure to support human production organization and collaborative changes. This is another example that blockchain and the Internet are completely isomorphic. The Internet is not just a technology, it has changed people's organization and collaboration.

In general, Ethereum brings blockchain to a new stage. When discussing Ethereum, if we want to summarize two keywords, then these two keywords are smart contracts and tokens; and if I can only talk about one, I would choose "token". I would rather look to the history of the Internet to find its meaning, repeating the previous analogy: tokens, as representations of value, play a similar role to HTML. After having HTML, what kind of website we build depends entirely on our imagination.

4. What is blockchain technology and how does it change business and financial models

Blockchain technology is a distributedLedger technology that allows multiple participants to jointly maintain a secure, transparent and immutable record on a decentralized network. Blockchain technology was originally designed for the digital currency Bitcoin, but is now widely used in many other fields.

The core features of blockchain technology include:

Decentralization: Blockchain has no central control agency, and data is distributed on various nodes in the network, which makes it decentralized. The centralization feature reduces the risk of single points of failure.

Transparency: Transaction records on the blockchain are public to all participants, and anyone can view these records. This helps increase trust and reduce the risk of fraud.

Immutable: Once a transaction is recorded on the blockchain, it cannot be easily modified or deleted. This guarantees data integrity and security.

Smart contracts: Transactions on the blockchain can be automatically executed to implement "smart contracts", which automatically execute corresponding operations when specific conditions are met. This helps simplify complex business processes and reduce costs.

Blockchain technology has had a profound impact on business and financial models, which is mainly reflected in the following aspects:

Reducing costs: Blockchain technology can reduce intermediary links and reduce costs. transaction costs and operating costs. For example, by adopting blockchain for cross-border payments, remittance fees can be significantly reduced.

Improving efficiency: The automation and smart contract features of blockchain technology help improve the efficiency of business processes, reduce manual intervention, and reduce error rates.

Enhance trust: The transparency and non-tamperability of blockchain technology help to establish a reliable trust system, reduce the risk of fraud, and provide better protection for business activities.

Innovative business models: Blockchain technology has spawned many new business models, such as decentralized finance (DeFi), digital asset trading, supply chain finance, etc. These new business models have brought disruptive changes to existing industries.

In short, blockchain technology, as an emerging technical means, is gradually changing the landscape of business and finance. With the continuous development of technology and the in-depth promotion of applications, blockchain is expected to have a more extensive and far-reaching impact in the future

5. Blockchain technology

Background: The birth of Bitcoin Later, blockchain technology was discovered after the technology was found to be advanced. Bitcoin and blockchain technology were discovered at the same time.

1.1 The purpose of the birth of Bitcoin:

①Currency transactions have records, that is, ledgers;

②The disadvantages of centralized institution accounting - it can be tampered with; Yi Chaofa

Bitcoin solves the first problem: anti-tampering - hash function

1.2 hash function (encryption method)

① Function: convert any String of length, converted to fixedOutput of length (sha256). The output is also called a hash value.

② Features: It is difficult to find two different x and y such that h(x)=h(y).

③Application: md5 file encryption

1.3 Blockchain

①Definition

Block: Split the general ledger into zones Block storage

Blockchain: On each block, add a block header. It records the hash value of the parent block. By storing the hash value of the parent block in each block, all blocks are connected in order to form a blockchain.

②How does the blockchain prevent transaction records from being tampered with?

After the blockchain is formed, tampering with any transaction will cause the hash value of the transaction block to be different from that of its sub-blocks. , tampering was discovered.

Even if you continue to tamper with the hash value in the sub-block header, the hash value in the sub-block will be different from that in the grandchild block, and the tampering will be discovered.

1.4 The essence of blockchain

①The essence of Bitcoin and blockchain: a big ledger visible to everyone, only recording transactions .

②Core technology: Through cryptographic hash function + data structure, it ensures that the ledger records cannot be tampered with.

③Core function: Create trust. Fiat currency relies on government credibility, and Bitcoin relies on technology.

1.5 How to trade

①To conduct transactions, you need an account number and password, corresponding to the public key and private key

Private key: a string of 256-bit binary numbers , no application is required to obtain it, and you don’t even need a computer. You can generate the private key by tossing a coin 256 times.

The address is converted from the private key. The address cannot reverse the private key.

The address is the identity, which represents the ID in the Bitcoin world.

After an address is generated, it can only be known by everyone if it enters the blockchain ledger.

②Digital signature technology

Signature function sign (Zhang San’s private key, transfer information: Zhang San transfers 10 yuan to Li Si) = signature of this transfer

< p> Verify Korean verify (Zhang San’s address, transfer information: Zhang San transfers 10 yuan to Li Si, signature of this transfer) = True

Zhang San uses his own signature function sign() The private key signs this transaction.

Anyone can verify whether the signature was issued by Zhang San himself who holds Zhang San's private key by verifying the Korean vertify(). It returns true, otherwise it returns false.

sign() and verify() are cryptographically guaranteed not to be cracked. ·

③Complete the transaction

Zhang San will provide the transfer information and signature to the entire network. Under the premise that the account has a balance, after verifying that the signature is true, it will be recorded in the blockchain ledger. Once recorded, Zhang San's account will be reduced by 10 yuan, and Li Si's account will be increased by 10 yuan.

Supports one-to-one, one-to-many, many-to-one, and many-to-many transactions.

In the Bitcoin world, private keys are everything! ! !

1.6 Centralized Accounting

① Advantages of Centralized Accounting:

a. No matter which center keeps accounts, don’t worry too much

< p> b. Centralized accounting, high efficiency

②Disadvantages of centralized accounting:

a Denial of service attack

b Stop service after getting tired

p>

c Central institutions are vulnerable to attacks. For example, destroying servers and networks, committing self-intrusion, legal termination, government intervention, etc.

All attempts at confidential currencies with centralized institutions in history have failed.

Bitcoin solves the second problem: how to decentralize

1.7 Decentralized accounting

①Decentralization: Everyone can keep accounts. Everyone can keep a complete ledger.

Anyone can download open source programs, participate in the P2P network, monitor transactions sent around the world, become an accounting node, and participate in accounting.

② Decentralized accounting process

After someone initiates a transaction, it is broadcast to the entire network.

Each accounting node continues to monitor and continue transactions across the entire network. When a new transaction is received and the accuracy is verified, it is put into the transaction pool and continues to be propagated to other nodes.

Due to network propagation, the transactions of different accounting nodes at the same time are not necessarily the same.

Every 10 minutes, one person is selected from all accounting nodes in a certain way, and his transaction pool is used as the next block and broadcast to the entire network.

Other nodes delete the transactions that have been recorded in their own transaction pool based on the transactions in the latest block, continue accounting, and wait for the next selection.

③ Features of decentralized accounting

A block is generated every 10 minutes, but not all transactions within these 10 minutes can be recorded.

The accounting node that obtains accounting rights,You will be rewarded with 50 Bitcoins. After every 210,000 blocks (approximately 4 years), the reward is halved. The total amount is about 21 million, and it is expected to be mined in 2040.

Recording the reward of a block is also the only way to issue Bitcoin.

④ How to allocate accounting rights: POW (proof of work) method

Compete for accounting rights by calculating mathematical problems on several accounting points.

Find a random number that makes the following inequality true:

There is no other solution except traversing the random numbers starting from 0 and trying your luck. The process of solving the problem is also called mining.

Whoever solves the problem correctly first will get the accounting rights.

If a certain accounting node finds the solution first, it will announce it to the entire network. After other nodes verify that it is correct, a new round of calculation will start again after the new block. This method is called POW.

⑤ Difficulty adjustment

The generation time of each block is not exactly 10 minutes

As Bitcoin develops, the computing power of the entire network does not increase.

In order to cope with changes in computing power, the difficulty will be increased or decreased every 2016 blocks (approximately 2 weeks), so that the average time for each block to be generated is 10 minutes.

#欧易OKEx# #BTC[超话]# #digital currency#

6. What is the blockchain and how to make money with the blockchain

< p>Blockchain is a term in the field of information technology. In essence, it is a shared database, and the data or information stored in it has the characteristics of "unforgeable", "full traces left", "traceable", "open and transparent" and "collectively maintained". Based on these characteristics, blockchain technology has laid a solid foundation of "trust" and created a reliable "cooperation" mechanism, which has broad application prospects.
The ways to make money in the blockchain are as follows:
1. Coin speculation. Coin speculation is like stock speculation. Coin speculation is the lowest threshold for making money in the blockchain;
2. Vendors, district Blockchain is a global market. Like small traders, you can move from a low-price platform to a high-price platform to sell and earn the price difference;
3. Earn commissions for promotion. The blockchain method is to register first Exchange account, generate your own invitation link, and then promote it. If someone registers the exchange through your link and generates transactions, you can get a commission;
4. Mining, "mining" in Bitcoin is The accounting process;
5. Technical support, providing blockchain technical support to some teams and enterprises;
6. Opening a trading website and charging handling fees;
7. Developing wallets and wallets It is the infrastructure of the blockchain, just like the "Alipay" or "WeChat Pay" of the blockchain;
8. Do blockchain projects or infrastructureequipment supplier.

Warm reminder: The above explanation is for reference only and does not make any suggestions. There are risks in entering the market, so investment needs to be cautious. Before making any investment, you should ensure that you fully understand the investment nature of the product and the risks involved. After understanding and carefully evaluating the product, you can make your own judgment on whether to participate in the transaction.
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7. Blockchain Principle

Blockchain is a technology, but it is not a single technology, but the result of the integration of multiple technologies, including cryptography, mathematics, economics, network science, etc. You can think of it as a distributed shared accounting technology, or as a database, but this database is jointly maintained by all nodes on the chain, and each node has a ledger, because all nodes The ledgers are consistent, different nodes can trust each other, and there is no doubt about the data, so everyone says that the blockchain has technically achieved trust. For detailed professional technology, you can consult some professional technology companies. For example: Jinbo Technology, which focuses on developing blockchain-related products, has a professional R&D team and complete after-sales service. You can call for consultation.