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❶ How to make money with blockchain? Is it a scam?

It is not a scam. Generally speaking, the blockchain is still in its infancy, and many projects have not yet been implemented. Only by respecting the growth Only by being steadfast and cultivating step by step under the premise of discipline can it gradually mature. Technology is neutral, but it is human nature that determines the direction and outcome of technology. How blockchain and digital currency will develop in the future depends on the values ​​​​and civilization of the controller.
Blockchain can allow you to make money in this industry, but it can also make you bankrupt. Therefore, I would like to remind users that they need to be cautious when investing. Don’t let yourself get involved without making money, and the gain outweighs the loss. There are also many blockchain scams. We must also be more vigilant to avoid being deceived and causing unnecessary economic losses.
Expand information
Pre-loan stage
Blockchain technology can first be applied to the logistics supply chain to help banks and other lending institutions more comprehensively and accurately grasp the real main business, transaction background, and financing of small and micro enterprises. Downstream affiliated enterprises, as well as their negotiating position in the supply chain, product sales, rhythm and path of payment, etc., on the one hand, help more light-asset, high-growth high-quality enterprises obtain financing support through transaction bills, logistics documents, etc. On the one hand, it prevents problematic enterprises from falsifying their business background and capital needs to obtain loans.
In addition, blockchain can also be applied to the provident fund interconnection to help banks understand the actual payment status of social security, provident fund, etc. of shareholders, executives, and ordinary employees of borrowing companies, so as to reasonably evaluate the size of the company's personnel and operating conditions, and provide credit and loans. Provide sufficient basis for approval decisions.
Loan stage
Blockchain technology can be applied to corporate loan information review and mortgage and pledge review to help banks improve approval efficiency and ensure approval quality. In the financing process of enterprises, especially small and micro enterprises, they often need to provide contracts and other necessary materials. Paper-based contracts with multiple signatures and seals are not only inefficient, but also have a series of problems such as forgery, alteration, and false signatures, which bring problems to bank approval. Greater counterfeiting, fraud and credit risks.
With the support of blockchain technology, relevant real-name information subjects, orders and ordering processes, electronic contracts, agreement signing processes, subsequent supplementary agreements, and photo materials can be preserved in real time, and all stored certificates cannot be tampered with. Ensure that the bank quickly authenticates and approves, and efficiently resolves disputes when they arise. In addition to traditional real estate, other assets owned by enterprises and business owners, including bank financing and other financial assets, can also be used for transfer and pledge, becoming a qualified basis for credit enhancement that can be accepted by banks, improving the availability and immediacy of corporate credit. .
Post-loan stage
Blockchain technology can be applied to the timely assessment of an enterprise's production and operation status and ability to perform repayments, helping banks to effectively grasp credit risks and adjust post-loan risk control strategies at any time. In the past business practice, banks often neither fully understand the true market value of mortgages and pledges, nor can they well judge the impact of the company's operations in warehousing and exiting on the market value of the remaining mortgages and pledges. Pledge of warehouse receipts, etc.New loan types have relatively low control capabilities.
After switching to digital warehouse receipts supported by blockchain technology, product quality, quantity, specifications, photos and other information can be completely and standardized on the chain. Authenticity and traceability are fully guaranteed, and banks can technically prevent Enterprises and warehousing institutions fabricate warehouse receipts and inconsistencies between warehouse receipts and warehouse entry and exit information to ensure that post-loan management is effective. In addition, information such as factory buildings and office building leasing of borrowing companies can also be fully shared with banks, upstream and downstream enterprises and other intermediary service agencies through blockchain technology, minimizing the risk of money being lost and other issues such as "people leaving the building empty".

❷ What is the public chain in the blockchain?

The public chain is also called the "public chain", which means that anyone in the world can enter the system at any time to read Fetch data, send transactions, and compete for accounting on the blockchain. Public blockchains are generally considered "completely decentralized" because no individual or institution can control or tamper with the reading and writing of data in it. In terms of application, public blockchain chains mainly include Bitcoin, Ethereum, Hyperledger, most altcoins, and smart contracts. The ancestor of the public blockchain chain is the Bitcoin blockchain, which has the following characteristics ：

1. The code is open source

The code is uploaded to github, and everyone can download the complete blockchain data and accept the test of the public.

2. Complete decentralization

Anyone can become a node, every node is public, everyone can participate in the calculation of the blockchain, and any node can It is not permanent, but periodic, and no center is mandatory for nodes. Anyone can read and send transactions, and transactions can be effectively confirmed on the blockchain, and anyone can participate in the consensus process. The consensus process determines which block can be added to the blockchain, and its exact current state. Everyone can receive financial rewards, proportional to their contribution in the consensus process. These public chains are often considered to be “completely decentralized.”

3. Develop decentralized applications

Program developers can easily develop decentralized applications through this public chain. Public chains can protect users’ rights and interests from the influence of program developers.

❸ What does blockchain igo mean?

ICO (Initial Coin Offering), initial coin offering, refers to the first time a blockchain project is issued to the public Tokens, raise mainstream cryptocurrencies such as Bitcoin and Ethereum to obtain funds for project operations.
IFO (Initial Fork Offerings), the first fork issuance, refers to the generation of new tokens by forking mainstream cryptocurrencies such as Bitcoin.
IEO (Initial Exchange Offerings), initial trading issuance, refers to the issuance of tokens with the exchange as the core; tokens skip the ICO step and go directly to the marketonline exchange.
IMO (Initial Miner Offerings), initial mining machine issuance, refers to the first issuance of tokens through the sale of hardware/mining machines.
Extended information:
1. 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.
2. From a technological perspective, blockchain involves many scientific and technical issues such as mathematics, cryptography, Internet and computer programming. From an application perspective, simply put, blockchain is a distributed shared ledger and database, which has the characteristics of decentralization, non-tampering, full traceability, traceability, collective maintenance, openness and transparency. These characteristics ensure the "honesty" and "transparency" of the blockchain and lay the foundation for creating trust in the blockchain. The rich application scenarios of blockchain are basically based on the fact that blockchain can solve the problem of information asymmetry and achieve collaborative trust and consistent action among multiple subjects
3. Blockchain is a distributed data storage, point-to-point New application models of computer technologies such as transmission, consensus mechanisms, and encryption algorithms. Blockchain is an important concept of Bitcoin. It is essentially a decentralized database. As the underlying technology of Bitcoin, it is a series of data blocks generated using cryptographic methods. Each The data block contains information about a batch of Bitcoin network transactions, which is used to verify the validity of the information (anti-counterfeiting) and generate the next block

❹ The three major public chains of blockchain are What

The three major public chains of the blockchain refer to BTC, ETH, and ADA
The blockchain public chain is also called the blockchain public chain. The public chain means anyone The data in the system can be read at any time. Public chains are often completely decentralized. This feature prevents everyone and institutions from controlling or tampering with the data on the chain.
Extended information:
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.
Types
1. Public Blockchains
Public Block Chains means: any individual or group in the world can send transactions, and the transactions can be effectively confirmed by the blockchain , anyone can participate in its consensus process. The public blockchain is the earliest blockchain and the most widely used blockchain. The virtual digital currencies of major bitcoins seriesAll currencies are based on public blockchains, and there is only one blockchain corresponding to this currency in the world.
2. Consortium (Industry) Blockchains
Industry Blockchains (Consortium Block Chains): Multiple preselected nodes are designated within a certain group as bookkeepers, and each block is generated by all preselected nodes. Nodes jointly decide (pre-selected nodes participate in the consensus process), other access nodes can participate in transactions, but do not participate in the accounting process (it is essentially still managed accounting, but becomes distributed accounting, how many pre-selected nodes, how to decide each The bookkeeper of the block becomes the main risk point of the blockchain), and anyone else can conduct limited queries through the open API of the blockchain.
3. Private Blockchain
Private Block Chains: Only use the general ledger technology of the blockchain for accounting. It can be a company or an individual, and the blockchain can be used exclusively With write permissions, this chain is not much different from other distributed storage solutions. Traditional finance is trying to experiment with private blockchains, while applications of public blockchains such as Bitcoin have been industrialized, and application products of private blockchains are still being explored.

❺ What is blockchain technology? What exactly is blockchain? A chain data structure composed of sequential connections, and a cryptographically guaranteed distributed ledger that cannot be tampered with or forged.

Broadly speaking, blockchain technology uses block chain data structures to verify and store data, uses distributed node consensus algorithms to generate and update data, and uses cryptography to ensure data transmission and access. It is a new distributed infrastructure and computing method that uses smart contracts composed of automated script codes to program and operate data securely.

[Infrastructure]

Generally speaking, the blockchain system consists of data layer, network layer, consensus layer, incentive layer, contract layer and application layer composition. Among them, the data layer encapsulates the underlying data blocks and related basic data and basic algorithms such as data encryption and timestamps; the network layer includes distributed networking mechanisms, data dissemination mechanisms, and data verification mechanisms; the consensus layer mainly encapsulates network nodes Various consensus algorithms; the incentive layer integrates economic factors into the blockchain technology system, mainly including the issuance mechanism and distribution mechanism of economic incentives; the contract layer mainly encapsulates various scripts, algorithms and smart contracts, and is the core of the blockchain The basis of programmable features; the application layer encapsulates various application scenarios and cases of the blockchain. In this model, the chain block structure based on timestamps, the consensus mechanism of distributed nodes, economic incentives based on consensus computing power, and flexible programmable smart contracts are the most representative innovations of blockchain technology.

Extended information:

[Blockchain core technology]

Blockchain mainly solves the trust and security issues of transactions, so it addresses this issueFour technological innovations:

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 all Can participate in supervising the legality of transactions and can also jointly testify for them.

The uniqueness of blockchain's 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 stores The data is divided into multiple parts for storage according to certain rules. Second, the storage of each node in the blockchain is independent and has equal status, relying on the consensus mechanism to ensure the consistency of storage, while traditional distributed storage generally synchronizes data to other backup nodes through the central node.

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. Transaction information stored on the blockchain is public, but account identity information is highly encrypted and can only be accessed with authorization from the data owner. , thus ensuring data security and personal privacy.

3. The 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 the computing power and the number of shares. Or other characteristic quantities that the 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.

4. Smart contracts. Smart contracts are based on these trustworthy and non-tamperable data and can automatically execute 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.

In the daily business of insurance companies, although transactions are not as frequent as those in the banking and securities industries, the reliance on trusted data continues unabated. Therefore, the author believes that using blockchain technology from the perspective of data management can effectively help insurance companies improve their risk management capabilities. Specifically speaking, it is mainly divided into risk management of policyholders and risk supervision of insurance companies.

Blockchain-Network

❻ What industry is blockchain?

It belongs to the information industry, and blockchain is a distributed digital Ledger, records allFor transactions that have occurred and been unanimously approved by the system, each block is like a hard disk that saves all the above information and then encrypts it through cryptography technology. The saved information cannot be tampered with.

It can be applied in different fields, as follows:

1. Financial field

Blockchain can be used in international exchange, letters of credit, and equity registration It has potential huge application value in financial fields such as stock exchanges and stock exchanges. The application of blockchain technology in the financial industry can eliminate the need for third-party intermediaries and achieve direct point-to-point connection, thereby greatly reducing costs and quickly completing transaction payments.

2. Internet of Things and Logistics Fields

Blockchain can also be naturally combined in the Internet of Things and logistics fields. Through blockchain, logistics costs can be reduced, the production and delivery process of items can be traced, and the efficiency of supply chain management can be improved. This field is considered a promising application direction of blockchain.

(6) What is the blockchain in today’s news? Extended reading

The characteristics and development plan of the blockchain

1. Characteristics

1. The biggest characteristic of blockchain technology is that it creates an integrity system in a digital society. In this system, not only is data transmission convenient, but fraud also becomes difficult.

2. Another feature of blockchain technology is that it can realize timely sharing of data and cannot be tampered with. In the field of government services, the blockchain data sharing model can realize the joint maintenance and utilization of government data across departments and regions, promote coordinated business management, and facilitate the public's work.

2. Development Plan

Major countries around the world are accelerating the development of blockchain technology, and my country has a good foundation in the field of blockchain.

The "Thirteenth Five-Year Plan for National Informatization" issued by the State Council included blockchain technology, the "Thirteenth Five-Year Plan for the Development of Information Technology in China's Financial Industry" issued by the People's Bank of China, and the Ministry of Industry and Information Technology The "White Paper on China's Blockchain Technology and Application Development", which was spearheaded by the Ministry of Industry and Information Technology, clearly proposed to strengthen the basic research and development and cutting-edge layout of blockchain technology, and proposed a standardized roadmap for the development of my country's blockchain technology.

❼Is the blockchain Bitcoin?

No, the blockchain and Bitcoin are not equal.
Blockchain knowledge The underlying technology of Bitcoin. Bitcoin is a cryptocurrency issued based on the blockchain. But more people may first know about Bitcoin, so they may mistakenly think that the two are the same thing.
Bitcoin is a type of cryptocurrency created by an individual or group named Satoshi Nakamoto and generated by a large number of calculations. The blockchain is a decentralized distributed ledger. Cryptocurrency transactions on the blockchain will record blocks one by one. These transaction records cannot be tampered with, and all contents are traceable.

The two are different. Crypto Finance. To learn more about blockchain, you can read more related news.