Blockchain ordering

A. What are the application scenarios of blockchain technology

The application scenarios of blockchain technology are diverse. Once popularized, the whole society will benefit greatly.
1. Financial Services
The application of blockchain in the financial field has already been rolled out, and it is not a new thing. The application of blockchain in financial technology has been widely concerned and highly valued all over the world.
In mainland China, China UnionPay signed a mobile payment strategic cooperation agreement with Bank of China in early 2018, and explored cooperation in the field of blockchain, and then cooperated with JD.com to jointly launch a blockchain-based “Internet financial payment”. Security Alliance Risk Information Sharing (Distributed Query) Platform”.
In Hong Kong, China, the Hong Kong Monetary Authority is one of the first regulators to launch a sandbox to support financial innovation experiments including blockchain technology; the Hong Kong Monetary Authority has also joined hands with the banking industry to launch “Trade Linkage” (eTradeConnect), which is the first large-scale trade finance information sharing platform in the Hong Kong banking industry using blockchain technology.
2. Judicial Deposit
On September 18, 2018, Hangzhou Internet Court was officially launched on the blockchain, becoming the first court in the world to use blockchain for trial.
It is understood that the complainant can submit the contract, rights protection process, service process details and other electronic evidence online through the online appeal portal, and witness the notary office, judicial appraisal center, CA/RA agency, court and other on-chain nodes together. , joint endorsement, to provide one-stop service for the plaintiff. Zhejiang Hangzhou Internet Court issued a public verdict on a case of infringement of the right to disseminate information on the Internet, and for the first time confirmed the legal validity of electronic data stored using blockchain technology.
3. Intellectual Property
Blockchain and related distributed ledger technologies offer possibilities for the protection and registration of intellectual property rights and as evidence at the registration stage or in court proceedings. These technologies can also speed up the protection and registration process of the aforementioned intellectual property rights in a cost-effective manner.
4. Logistics field
At the beginning of 2018, Cainiao and Tmall International jointly announced that they have used blockchain technology to track, upload and verify the logistics full-link information of cross-border imported goods.
After all nodes of the logistics chain are on the blockchain, the goods can be traced from the producer to the consumer, forming a complete chain; the more links the goods are missing, the higher the probability that they are fake and inferior products will be exposed. Big.
5. Electronic invoices
On August 10, 2018, Shenzhen International Trade Revolving Restaurant issued the first blockchain electronic invoice in the country. It is understood that this blockchain electronic invoice was issued by Shenzhen It is led by the Municipal Taxation Bureau and created by Tencent with the underlying technology and capabilities.
Different from traditional electronic invoices and simple electronic invoices on the chain, this blockchain electronic invoice combines “capital flow and invoice flow” into one, and combines invoice issuance with online payment to open up invoice application. The whole process of receiving, invoicing, reimbursement, and tax declaration.
In addition to the above-mentioned fields, the application of blockchain has broad prospects in the blue ocean. In the future, the application and development of new technologies will emerge in all walks of life, and the blockchain will develop vigorously.

B. Can the ordering platform use blockchain technology?

Yes, Jinwowo uses blockchain technology to provide qiye with the process of providing products and services, and using blockchain technology The immutability of the chain technology to ensure the authenticity of the data source

C. What are the relevant terms about the blockchain industry

1, utility token

utility token is a kind of A utility token that acts as the right to use a specific service.

Term usage examples

Utility tokens are premised on using the service.

Details

You can pay for items and meals instead of cash, and you can access it by having cloud storage. For utility tokens, no audit report classification is required.

6. Public chain

A public chain is a blockchain with a high degree of “publicity”, and anyone can freely participate in the network.

Example of term usage

As an infrastructure project mediating data exchange between blockchains, a mechanism for exchanging data on public blockchains will be established.

Detailed description

In a blockchain used to record transaction information of encrypted assets (virtual currencies), a mechanism used by an unspecified number of Consensus builds transaction information without a specific management entity. It is very safe to prevent falsification of transaction information, but it requires a lot of computation, so it has the disadvantage that it takes a long time to complete the transaction when there are many participants.

7. Scalability Issues

Scalability issues refer to the “scalability” issues of delayed transaction processing.

Example of term usage

Surge in gas prices highlights Ethereum’s scalability issues.

Details

Due to the nature of blockchains, there is a processing delay due to the limited amount of transaction data that can be written in a block. Remittances may require� Over time, this results in higher transaction fees. Bitcoin, the first cryptocurrency to be born, has been considered a particular problem, but efforts to solve it have been implemented, such as leveraging other technologies such as the Lightning Network and developing new blockchains.

8. GAS fees

GAS fees are (network) transaction fees on the Ethereum blockchain.

Example of Terminology Usage

This week, there have been multiple cases of high gas bills being paid on the Ethereum blockchain despite small remittances.

Details

The GAS fee of the amount specified by the user is a secondary reward. The virtual currency Ethereum (ETH) is used for payments. Since transactions with higher fees are processed first, GAS fees may increase with the number of transactions.

9. Liquidity Mining (Liquidity Mining)

Considering the provision of liquidity (currency pairs), liquidity mining refers to granting governance tokens in addition to interest to attract those who enforce yield checks and balances .

Example of term usage

Liquidity mining is accelerating and lucrative.

Details

In liquidity mining, by storing a specific asset in a liquidity pool and providing liquidity that traders can buy and sell, the swap fee at that time can be used as a Income earned. These liquidity mining originated from the largest decentralized exchange “Uniswap”, and many liquidity mining contracts such as Curve Finance and Balancer were born.

10. DeFi (distributed finance)

DeFi (decentralized finance) refers to financial services or systems that utilize blockchain and are provided without a central administrator.

Example of Terminology Usage

The DeFi market has grown rapidly since June 2020.

Details

The acronym for “decentralized finance”. Financial services offered by DeFi include issuing stable coins, lending money, and cryptocurrency exchanges. Many platforms use the Ethereum blockchain.

11. PoS (Proof of Stake)

PoS is a consensus algorithm that gives you the right to approve and generate new blocks based on the percentage (stake) of virtual currency you own.

Example of term usage

Ethereum co-founder Vitalik Buterin said that migrating ETH’s consensus algorithm from PoW to PoS would improve security and scalability.

Details

Abbreviation for Proof of Stake. The holding period of virtual currency can also be considered. It was born as an alternative to the “Proof of Work (PoW)” consensus algorithm, which requires high-performance computers to approve transactions and consumes a lot of energy. If approved, you can receive newly issued virtual currency as a reward.

12. dApps

dApps are applications developed using open source blockchains.

Example of Terminology Usage

Korea’s largest Samsung Electronics app store “Galaxy Store” has started processing dApps using Tron’s blockchain.

Details

Abbreviation for “decentralized application”, which is called “decentralized application” in Japanese. A major feature is that there is no centralized administrator. The most popular is the Ethereum blockchain, where applications such as games and decentralized exchanges (DEXs) are being developed.

D. What are the application examples of blockchain?

1. Judicial deposit evidence

On September 18, 2018, Hangzhou Internet Court was officially launched on the chain , becoming the first court in the world to use blockchain for trial.

It is understood that the complainant can submit the contract, rights protection process, service process details and other electronic evidence online through the online appeal portal, and the notary office, judicial appraisal center, CA/RA agency, court and other on-chain nodes. Come to jointly witness and jointly endorse, and provide one-stop service for the plaintiff. Zhejiang Hangzhou Internet Court issued a public verdict on a case of infringement of the right to disseminate information on the Internet, and for the first time confirmed the legal validity of electronic data stored using blockchain technology.

2. Logistics field

At the beginning of 2018, Cainiao and Tmall International jointly announced that they have enabled blockchain technology to track, upload and verify the logistics of cross-border imported goods. link information.

After all nodes of the logistics chain are on the blockchain, the goods can be traced from manufacturers to consumers, forming a complete chain; the more links the goods are missing, the more fake and inferior goods will be exposed Product is more likely.

3. Electronic invoices

On August 10, 2018, Shenzhen Guomao Revolving Restaurant issued the first blockchain electronic invoice in the country. It is understood that this block issued The chain electronic invoice is led by the Shenzhen Municipal Taxation Bureau, and Tencent provides the underlying technology and capabilities.

Different from traditional e-invoices and simple e-invoices on the chain, this blockchain e-invoice combines “capital flow and invoice flow” into one. The combination of online payment has opened up the whole process of invoice application, invoicing, reimbursement and tax declaration.

There are still many practical applications of blockchain, you can learn more about the relevant information.

E. Taobao will be blockedWill Chain+ replace it?

The core of Blockchain+ is to gradually eliminate all industries that require intermediaries for trust. Many central nodes and service platforms of the current Internet are essentially trust intermediaries. Users complete shopping, travel, ordering, and payment through trusted intermediaries such as Taobao, Didi, Uber, Meituan, Alipay, and WeChat Pay.

But the Internet will never stand still, continuous evolution is the norm, and people will have new trust and reliance in the future. Since the records of the blockchain cannot be tampered with and are authentic and credible, people’s trust in the blockchain gradually exceeds the trust in centralized companies. With the joint efforts of many blockchain companies and some traditional industries, the world will gradually transition from being driven by centralized trust to systems driven by algorithms and data as the core. When the centralized trust intermediary is gradually weakened, the system represented by the blockchain will gradually take over the operation of the entire world, and finally form a “disintermediation” system trust.
Therefore, blockchain is not only a technology, but also a story about the paradigm shift in the operation of the world. Although this story is still a little far away from the current point of view, it has already germinated and preliminary development.

Blockchain Internet will start from the industries most closely related to trust and traceability, and gradually expand and expand until most industries are blockchainized and blockchain+.
Puyin is a high-quality Tibetan tea asset that has been stored, identified, evaluated and confirmed by three parties, and is a standard digital currency issued through encryption and digitization. Puyin strictly follows its operating guidelines – “White Paper on Standard Digital Currency” Practice the concept and create a standard for asset digitization

F. Give examples of other practical applications of blockchain

Starting from November 8, the Walmart Jinhai Road branch in Bao’an, Shenzhen will Provide users with blockchain electronic invoice issuance services, and the issued electronic invoices will directly enter the consumer’s WeChat card package. This is the first time that electronic invoices have been applied to the super field of large chain retailers.

In fact, on August 10th this year, the Guomao Revolving Restaurant in Shenzhen has issued the country’s first blockchain electronic invoice. So, what are the characteristics of blockchain electronic invoices that make Shenzhen, a national pioneer city, willing to take it as an important “Internet + tax” in the “Intelligent Tax” innovation laboratory of Shenzhen Taxation Bureau and Tencent this year What about landing products?

1. It is more convenient to issue invoices

In the past, invoices were issued in supermarkets, and it was necessary to check out at the cashier, and then go to the service counter to queue up to issue invoices according to the shopping receipt. At this time, if the user provides wrong information, it is very troublesome to void the invoice and re-open the meeting. The emergence of blockchain electronic invoices allows enterprises to apply for invoices on the blockchain; users can issue invoices on the chain, and after the transaction is completed, they can apply for invoicing by themselves by scanning WeChat on their mobile phones, and the receipt of invoices can be realized electronically. And convenience, to achieve “transaction is billed”, the whole process is more convenient and fast.

2. Supervision is more convenient

Because the blockchain electronic invoice is issued directly in the system, there are fewer human intervention factors, and for the tax regulator and the tax bureau of the management party It can achieve scientific and technological innovation of full-process supervision, realize paperless intelligent tax management, and make the tax process more controllable.

3. Financial information is more authentic and reliable

Due to the addition of the underlying technology of the blockchain, the information on the electronic invoice has become immutable, which makes the internal financial statistics of the enterprise, It avoids various opportunities for fraud, optimizes the process of financial reimbursement, and improves work efficiency.

It is almost foreseeable that with the addition of global giants such as Walmart, electronic invoices will be applied in more fields. In the context of this year’s tax reform, the development of technology will also provide greater support for the tax system of Shenzhen, an international metropolis.

G. Will the high interest rate of the frontier blockchain deceive people?

Anyway, I think it is very likely to be deceived. You should pay attention to prevent being deceived.

H. What is Blockchain

I. What are the technical classifications of blockchain?

1. Public chain, no official organization and management agency, no central server, participating nodes freely access the network according to system rules, no Under the control, the nodes work based on the consensus mechanism. (Subversive: absolutely credible and open)
Typical case: digital currency represents Bitcoin
2. Private chain, built within a group, the operating rules of the system are set according to the group’s requirements, modified�� or read permissions are limited to a certain extent, while retaining the authenticity and partial decentralization of the blockchain. (relatively credible and open)
Typical case: R3
3. The 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 Express Chain may be public or partially public, that is to say, multiple pre-selected nodes are designated as bookkeepers internally, and the pre-selectors compete for bookkeeping rights, and other access nodes can participate in transactions But don’t ask about the billing process. (The ability of the pre-selected people cannot be uneven). ?
(relatively credible and public)
Existing case: Hyperledger
Example: ?For loan diversion, after the user jumps to the other party’s webpage through our link to register, The docking party can choose to lie and say that the request for user registration has not been received. 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.

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