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㈠ What are the application prospects of blockchain?

The application prospects of blockchain are mainly in the financial field, Internet of Things and logistics, public services, digital copyright, and insurance. field.

1. Blockchain has huge potential application prospects in financial fields such as international exchange, letters of credit, equity registration 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.

2. Blockchain can also be naturally combined in the Internet of Things and logistics fields. This field is considered to be a promising application direction of blockchain. Establishing credit resources in the blockchain can double improve the security of transactions and improve the convenience of IoT transactions. Save time and cost for smart logistics model applications.

3. Blockchain is closely related to people’s production and life in public management, energy, transportation and other fields. The decentralized and fully distributed DNS service provided by the blockchain can realize domain name query and resolution through point-to-point data transmission services between various nodes in the network.

4. Through blockchain technology, works can be authenticated, proving the existence of text, video, audio and other works, and ensuring the authenticity and uniqueness of ownership. After the rights of the work are confirmed on the blockchain, subsequent transactions will be recorded in real time, realizing full life cycle management of digital copyright, and can also be used as a technical guarantee in judicial evidence collection.

5. In terms of insurance claims, insurance institutions are responsible for fund collection, investment, and claims settlement, and often have high management and operating costs. Through the application of smart contracts, there is no need for the policy holder to apply or the insurance company to approve it. As long as the claim settlement conditions are triggered, the insurance policy can automatically settle claims.

(1) Nete blockchain business extended reading:

Core technology of blockchain

1. Consensus mechanism, Through the voting of special nodes, the verification and confirmation of the transaction can be completed in a very short time; for a transaction, if several nodes with unrelated interests can reach a consensus, it can be considered that the entire network can also reach a consensus on it. The goal of the blockchain consensus mechanism is to enable all honest nodes to maintain a consistent view of the blockchain.

2. Asymmetric encryption requires two keys for encryption and decryption. These two keys are the public key and the private key. The public key corresponds to the private key. When the public key is used in the encryption process of data, it can only be decrypted by using the corresponding private key. On the contrary, when the private key is used in encrypting the data, only the corresponding private key can be used to decrypt the data. Only the corresponding public key can be decrypted.

㈡ What industries are suitable for blockchain?

Industries suitable for blockchain include financial industry, copyright protection, traceability and anti-counterfeiting, energy industry, sharing economy, Internet of Things, etc.
my country’s blockchain industry has developed over the past ten years. Basically, a relatively mature industrial chain has been formed. Under the conditions of national policy promotion and increasing demand in downstream application fields, the market size of my country's blockchain industry continues to grow.development, with a high degree of geographical concentration and obvious industrial cluster effects.
With the increasing maturity of blockchain technology, the blockchain industry is entering the 3.0 stage as a whole, with good performance in finance, logistics, copyright protection and other fields. In order to promote my country's digital construction, accelerate The Digital China process has made a huge contribution.

What exactly is blockchain

What is blockchain?
Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. The so-called consensus mechanism is a mathematical algorithm that establishes trust and obtains rights and interests between different nodes in the blockchain system [1].
Blockchain is an important concept of Bitcoin. It is essentially a decentralized database and serves as the underlying technology of Bitcoin. The blockchain is a series of data blocks generated using cryptographic methods. Each data block contains information about a Bitcoin network transaction and is used to verify the validity of its information (anti-counterfeiting) and generate the next block.
Blockchain was born from Satoshi Nakamoto’s Bitcoin. Since 2009, various Bitcoin-like digital currencies have appeared, all based on public blockchains.
The current situation of digital currency is that a hundred flowers are blooming. Here are some common ones: bitcoin, litecoin, dogecoin, dashcoin. In addition to currency applications, there are also various derivative applications, such as Ethereum, Asch and other underlying application development platforms, as well as NXT , SIA, BitShares, MaidSafe, Ripple and other industry applications.
On January 20, 2016, the People’s Bank of China Digital Currency Seminar announced that it had achieved phased results in digital currency research. The meeting affirmed the value of digital currency in reducing the issuance of traditional currency and stated that the central bank is exploring the issuance of digital currency. The expression of the People’s Bank of China’s Digital Currency Seminar has greatly enhanced the confidence of the digital currency industry. This is the first time that the five central bank ministries and commissions have expressed a clear attitude towards digital currencies since they issued a notice on preventing Bitcoin risks on December 5, 2013. [4]
On December 20, 2016, the Digital Currency Alliance - China FinTech Digital Currency Alliance and FinTech Research Institute were officially established, with Huobi being one of the co-initiators. [5]
Some areas where blockchain can be used are:
▪ Smart contracts
▪ Securities trading
▪ E-commerce
▪ Internet of Things
▪ Social communication
▪ File storage
▪ Proof of existence
▪ Identity verification
▪ Equity crowdfunding
We can divideThe development of blockchain is analogous to the development of the Internet itself. In the future, something called finance-internet will be formed on the Internet, and this thing is based on blockchain. Its precursor is Bitcoin, that is, traditional finance starts from private chains and industry chains. (Local Area Network), the Bitcoin series starts from the public chain (Wide Area Network), both express the same concept - digital assets (Digital Asset), and eventually converge to an intermediate balance point.
The evolution of blockchain is:
▪ Blockchain 1.0 - digital currency
▪ Blockchain 2.0 - digital assets and smart contracts
▪ Blockchain 3.0 ——The implementation of distributed applications in various industries
Blockchain is divided into three categories, which is introduced in detail in the book "Blockchain: Defining the New Pattern of Future Finance and Economics" [2] issued by Currency, < br />Hybrid blockchains and private blockchains can be considered as broad private chains:
Public Blockchains (PublicBlockChains)
Public blockchains refer to: any individual or group in the world Transactions can be sent and effectively confirmed by the blockchain, and 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 all major bitcoins series are based on the public blockchain. There is only one blockchain corresponding to this currency in the world. .
Consortium (Industry) Blockchain (ConsortiumBlockChains)
Industry Blockchain: Multiple preselected nodes are designated within a certain group as bookkeepers, and the generation of each block is jointly performed by all preselected nodes. Decision (pre-selected nodes to participate in the consensus process), other access nodes can participate in transactions, but do not participate in the accounting process (essentially still managed accounting, just become distributed accounting, how many pre-selected nodes, how to determine the number of each block The bookkeeper becomes the main risk point of the blockchain), and anyone else can conduct limited queries through the open API of the blockchain.
Private Blockchain (privateBlockChains)
Private Blockchain: Only uses the general ledger technology of the blockchain for accounting. It can be a company or an individual, and has exclusive access to the writing of the blockchain. With access permissions, this chain is not much different from other distributed storage solutions. (Dec2015) Conservative giants (traditional finance) all want to experiment with private blockchains, while public chain applications such as Bitcoin have been industrialized, and private chain application products are still being explored.

㈣ What is blockchain

What is blockchain? We need to understand the essence of blockchain:
First of all, we need to understand a concept. The so-called blockchain refers to computers such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms.New application models of technology. The so-called consensus mechanism is a mathematical algorithm that establishes trust and obtains rights and interests between different nodes in the blockchain system.
Blockchain was born from Satoshi Nakamoto’s Bitcoin. Since 2009, various Bitcoin-like digital currencies have appeared, all based on public blockchains.
Essentially, it is a decentralized database, which is the underlying technology and infrastructure of Bitcoin that is currently very popular. Of course, having said this, perhaps everyone still doesn’t quite understand what this is. Roughly speaking, blockchain is a machine that builds trust. It may change the way value is transmitted throughout human society.
Let’s start with a brief explanation. Recently, Tencent is vigorously promoting a software called TIM. This software is similar to QQ, but its biggest feature is that all participants can edit documents online, which is similar to a block. chain. It’s just that there is no single user in the blockchain that controls this document. Instead, all participants in the blockchain system can jointly maintain the update of the document, which can only be modified according to strict rules and consensus.

㈤ What does blockchain mean and how to understand it

Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm.

Blockchain is an important concept of Bitcoin. It is essentially a decentralized database. As the underlying technology of Bitcoin, it is a series of related data generated using cryptography methods. Each data block contains a batch of Bitcoin network transaction information, which is used to verify the validity of the information (anti-counterfeiting) and generate the next block.

Notes

1. Blockchain Originated from Bitcoin, on November 1, 2008, a person claiming to be Satoshi Nakamoto published the article "Bitcoin: A Peer-to-Peer Electronic Cash System", which elaborated on P2P network technology, encryption technology, The architectural concepts of electronic cash systems such as timestamp technology and blockchain technology mark the birth of Bitcoin.

Two months later, the theory came into practice, and on January 3, 2009, the first genesis block with serial number 0 was born. A few days later, block number 1 appeared on January 9, 2009, and was connected to the genesis block number 0 to form a chain, marking the birth of the blockchain.

2. In order to realize the great leap forward development of blockchain finance, in order to promote the new development of China’s economy, accelerate the circulation of global assets, and realize the dream of rejuvenation that generations have been striving for, Puyin Group launched the On the 9th, a Puyin Blockchain Finance Guiyang Strategy Release Ceremony was held in Guizhou. At the meeting, the digital circulation of assets through blockchain, the blockchain financial transaction model, and the application of blockchain services and social public industries will be discussed. Explore.

㈥ What is blockchain

Blockchain is a term in the field of information technology. Blockchain is an uninterrupted digital ledger of economic transactions that can be programmed to record not just financial transactions, but almost anything of value. Simply put, it is a decentralized, distributed database of immutable records that is managed by a cluster of computers but does not belong to any single entity. Blockchain is stored as a database or flat file.

㈦ What is blockchain

Concept: Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm.

The essence of the blockchain is a distributed public ledger. Anyone can verify this ledger, but no single user can control it. Participants in a blockchain system jointly maintain a ledger: it can only be modified according to strict rules and consensus.

The development of blockchain has gone through three stages:

1. Incubation period: 2009-2012, the economic form was dominated by Bitcoin and its industrial ecology.

2. Embryonic period: The period is from 2012 to 2015. Blockchain entered the public eye with Bitcoin, new wallet payment and remittance companies appeared, and the blockchain economy spread to the financial field. The underlying technology of blockchain continues to innovate. Blockchain technology is divorced from the Bitcoin system.

3. Development period: In 2016, industry applications began to be explored, and a large number of blockchain startups emerged. The popularity of ICO in 2017 brought unprecedented attention to blockchain.

(7) Nete blockchain business extended reading:

Three characteristics of the three blockchains:

1. The core idea of ​​the blockchain is decentralization: in the blockchain system, the rights and obligations between any nodes are equal, and all nodes have the ability to vote using computing power, thus ensuring a recognized result. It is the result recognized by more than half of the nodes. Even if it suffers a severe hacker attack, as long as the number of nodes controlled by the hacker does not exceed half of the total number of global nodes, the system will still be able to operate normally and the data will not be tampered with.

2. The biggest disruption of blockchain lies in the establishment of credit: in theory, blockchain technology can make WeChat Pay and Alipay no longer valuable. The Economist made a vivid metaphor for blockchain: simply put, it is “a machine that creates trust.” Blockchain allows people to collaborate without trusting each other and without a neutral central authority. Combating counterfeit currency and financial fraud will no longer be needed in the future.

3. The collective maintenance of blockchain can reduce costs: In a centralized network system, the maintenance and operation of the system rely on the operation, maintenance and operation of platforms such as data centers, and costs cannot be omitted. Anyone can participate in the nodes of the blockchain. While participating in the recording, each node also verifies the correctness of the recording results of other nodes, improving maintenance efficiency.,Reduce costs.

In one sentence, blockchain touches money, trust and power, which are the fundamental foundations on which human beings rely for survival.

㈧ What are those working in the blockchain industry doing?

In recent years, blockchain-related concepts have become extremely popular, attracting many people to join the industry. What about these What are the people who are really involved in the blockchain industry doing?

Usually what we call "blockchain industry" is a general term that includes three pillar industries that are interrelated and independently formed: currency circle, mining circle, and chain circle. At this stage, the best "money" scene is the currency circle, followed by the mining circle, and finally the chain circle.

Currency Circle

Currency Circle mainly focuses on the issuance, payment, and securities of digital currency (also known as virtual currency, cryptocurrency).

The earliest and most successful digital currency is Bitcoin (BTC). The Bitcoin white paper and software released by the still anonymous tycoon Satoshi Nakamoto in 2008~2009 marked the After the birth of Bitcoin, there are three main ways to issue digital currencies: forks, self-research, and tokens:

1. Among common currencies, BCH, LTC, DCR, and DASH , ZEC, etc. all came from forking BTC, mainly because they have some different propositions in terms of performance, privacy, encryption algorithms, etc.

2. ETH, EOS, etc. are relatively successful self-research projects. They are often not satisfied with issuing a new currency, but try to create a set of public projects that support the development of smart contracts and decentralized applications. platform.

3. Token issuance mainly relies on the capabilities of the aforementioned public platforms to issue new currencies in a very fast and easy way. These new currencies usually have some innovations at the business level. Or integration; Token has opened the door to a new world of digital currency issuance. Project crowdfunding (I-C-O), stable coins (USDT, etc.), platform coins, I-E-O, etc. are taking turns. It can be said that a hundred flowers are blooming and a mixture of good and bad.

Payment is the basic function of currency. In order to make digital currency faster and more convenient for transactions and circulation, many excellent products have been born, such as online or offline wallets that support many currencies, and peer-to-peer support. Or a settlement system for guaranteed transactions, a platform that supports the mutual exchange of digital currencies and legal currencies, etc.

The emergence of exchanges has given digital currencies strong security attributes. Common exchanges usually support OTC (C2C) trading, currency trading, contract trading and other functions provide investors with 7x24 hours real-time online digital currency trading services. There are more investors participating in transactions, and investment services such as quantification, funds, lending, etc. have also been derived. Along with several rounds of bull markets, digital currency has been recognized, accepted and participated in investment by more and more people, and the securities function has developed much more powerfully than the payment function.

Mining Circle

With the development of technology and intensified competition, mining machines, mining pools, mining pools and cloud computing power services integrating the first three have become the core of the mining circle. Main business models.

In a popular sense, mining is the process of generating new digital currencies through computers. Early digital currencies, especially Bitcoin, which has the largest market capitalization, usually used a proof-of-work (POW) mechanism to ensure the normal operation of the decentralized network and give participants digital currency rewards. As the value of digital currencies increases, competition in mining continues to intensify, and the computing power required to generate new coins is also constantly and significantly increasing: the earliest Bitcoins can be mined through the CPU of a personal computer, and later the computing power is stronger The GPU replaced the CPU, and in the future, dedicated mining machines, especially ASIC (Application Specific Integrated Circuit) mining machines, became the protagonist. The most important thing in developing ASIC mining machines is the development of dedicated high-performance chips, which represent the most cutting-edge technical capabilities; the second is the stability and energy efficiency ratio of the mining machines. The production of mining machines is usually through foundries, but strong supply chain, logistics management, marketing promotion, after-sales service and other capabilities are also essential.

A mine is a place where mining machines are deployed centrally. The ideal mine is built according to data center standards, but it is almost impossible to achieve it due to cost considerations. The most basic mine construction requires cheap and stable power supply, safe and spacious site, professional operation and maintenance team and other conditions. It also needs to be equipped with rack cabinets, temperature adjustment, noise isolation and other facilities. As the most important resource, cheap and stable electricity is usually owned by a few people (companies). They usually resell resources or build mines for self-operated mining and provide mining machine hosting services.

The emergence of mining pools is also due to the increasing difficulty of mining. Even if you have a state-of-the-art ASIC mining machine, the probability of directly mining coins is very low. Mining pools can unite many mining machines to form a huge computing power pool, increasing the probability of obtaining mining rewards. The main principle is to split the same mining task and send it to the mining machine connected to the mining pool, and receive and verify the calculation results submitted by the mining machine. If it meets the mining requirements, it will be submitted to the chain to obtain rewards. Different mines will also be counted. The computing power of the machine is distributed according to the computing power.

Due to the professionalism and high entry threshold of mining machines, mining pools, and mining pools, only large-scale and well-funded groups can participate in mining.Teams and institutions, and cloud computing power can directly deliver computing power of a specified size by integrating high-quality resources such as mining machines, mines, mining pools, etc., and package it into simple and easy-to-use mining services for ordinary users to purchase directly, greatly reducing the cost The capital, time, resources, and energy costs for ordinary users to participate in mining.

Chain Circle

Blockchain was born out of the underlying implementation of Bitcoin. In a narrow sense, blockchain is a way to connect data blocks in sequence in chronological order. A chained data structure composed of , is a technology that uses cryptography to ensure a decentralized ledger that cannot be tampered with or forged.

Blockchain is the carrier technology of digital currency. At the same time, after more than ten years of development, people have gradually realized that the advantages and characteristics of blockchain technology can be applied to wider fields, so they There are so many people who are devoted to the research, development and promotion of blockchain technology, which mainly include three parts: chain building, DAPP development, and blockchain+.

The popularity of blockchain technology has led to the development of many blockchains. The carrier chains of digital currencies such as BTC, BCH, ETH, EOS, etc. are usually released to the public network and developed by the open source community. A blockchain that is maintained and can be used by anyone can be called a public chain. Application-oriented chains led by commercial companies such as FaceBook, Internet, and Tencent are developed and deployed on intranets and are often called private chains.

DAPP refers to decentralized applications developed on the blockchain through smart contracts and other technologies. Most of them are applications for ordinary users on the public chain, such as electronic pets, gambling games, and decentralized applications. Exchanges, light games, etc. Blockchain+ is more of a commercial application developed by commercial companies based on private chains combined with a certain business field, such as points system, copyright certificate, decentralized storage, bank securities, etc.

With the development of blockchain technology, I believe that more and more chains and excellent chain-based applications will be born.

Risk warning: All digital currencies mentioned in this article are not investment recommendations.

Original link: https://mp.weixin.qq.com/s/KuhawYVYG0SG2v19O3qxcg