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⑴ What is the difference between blockchain and supply chain

Blockchain is a decentralized data processing, and supply chain is the internal and external supply of enterprises to maintain normal operation. Relationship, the application of blockchain in supply chain will bring about subversive changes.

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 supply chain refers to the network chain structure formed by upstream and downstream enterprises involved in the provision of products or services to end users in the production and circulation process.

Management methods

Common Supply chain management methods include Quick Response (QR) and Effective Customer Response (ECR).

Quick Response (QR) means that when logistics companies face a buyer's market with multiple varieties and small batches, they do not reserve "products" but prepare various "elements" to respond to user requests. At the same time, the "elements" can be extracted as quickly as possible, "assembled" in time, and the required services or products can be provided. QR is a supply chain management method developed in the U.S. textile and apparel industry.

Reference for the above content: Network-regional chain, network-supply chain

⑵ What is the difference between supply chain and blockchain?

The supply chain is a blockchain an application.
The core analysis:
1. Transparency, 2. Openness, 3. Information cannot be tampered with, 4. Decentralization,
5. Detailed analysis.
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. In a narrow sense, blockchain is a chain data structure that combines data blocks in a sequential manner in chronological order, and is cryptographically guaranteed to be non-tamperable and non-forgeable. distributed ledger.
2. 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. A new distributed infrastructure and computing method that securely uses smart contracts composed of automated script codes to program and operate data.

⑶ What is the concept of blockchain? Read it in three minutes!

On October 25, 2019, Xinwen Broadcast sent a very important signal: the country must vigorously developExhibition of blockchain. After that, blockchain has become an Internet celebrity, and the figure of "blockchain" is floating in the streets and alleys. In fact, many technology companies have already deployed blockchain technology.

Although blockchain is very popular, many people do not know much about blockchain.

What is blockchain?

Let’s first take a look at how Du Niang explained it. Network display: Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms.

Why is blockchain called blockchain?

The blockchain is linked by blocks one by one, and the blocks are storage units one by one, which record the communication information of each block node. The blocks are much like the records of the database. Writing data every time creates a block. With the expansion of information exchange, one block continues with another, and the result is called a blockchain.

What are the characteristics of blockchain?

Blockchain mainly has the following characteristics:

1. Decentralization: In the blockchain system, every node has equal rights. and obligations, there is no central control here. Decentralization has well established trust relationships with each other. Although there is no central management organization, people can collaborate with each other and trust each other. This mainly applies blockchain distributed ledger technology.

2. Openness: Blockchain data is open to everyone. Except for some encrypted information that is not open, everyone can check the data here.

3. Independence: The entire blockchain system does not rely on other third parties. All nodes can automatically and securely verify and exchange data within the system without any human intervention.

4. Security: Blockchain has a certain degree of security and cannot be tampered with. Because everyone in the blockchain system has the same ledger, if someone wants to tamper with it, it is possible to forge a non-existent record only if they control more than 51% of the accounting nodes. Of course, this is basically impossible. This is mainly due to the core technology of the blockchain: the consensus mechanism. The consensus mechanism has the characteristics of "the minority obeys the majority" and "everyone is equal".

5. Anonymity: Many people think that if the blockchain is so open and transparent, will we lose privacy? In fact, no, although the transaction information in the blockchain is open and transparent, the identity information of the account is encrypted and can only be accessed with authorization.

Now let me tell you a story to help you better understand the blockchain.

There are three people in the family, mom, dad, older brother and younger brother. Last year, homeDad is in charge of the account books in the house, and he is responsible for all the income and expenses of the family alone.

However, on the day of Double Eleven, my mother, who has always been frugal, wanted to buy herself a beautiful piece of clothing on a certain online store. When she checked the account book, she found something was wrong. It stands to reason that except for some money deposited in banks and financial management, the whereabouts of the daily consumption money at home are all in this account book, but no matter how you look at it, it is wrong. Some consumption is clearly not recorded, but is recorded.

Later, my father took the initiative to confess that he couldn’t help but buy a pack of cigarettes.

Later, my mother changed her strategy and the whole family kept accounts. Everyone recorded their monthly consumption expenditure in their own account books. Whenever there was a transaction or consumption at home, my mother would shout, "Book it," and everyone would record the transaction in their own books. This is the decentralized accounting model, where everyone is the center and everyone has a ledger.

The previous accounting model for dad was centralized accounting. If dad wanted to do something alone, it would be difficult for anyone to see it. The decentralized accounting model has solved the problem of centralization very well. The disadvantage of bookkeeping is that it is very difficult for dad to tamper with the books.

For example, if dad wants to take some money from the ledger and secretly buy cigarettes, the amount of money is limited, and if he wants to take the money, he has to change the ledger, but he only tampered with his own ledger. No, he had to change the accounts of three people including himself. And this is undoubtedly more difficult than reaching the sky.

So, many times my father had the idea of ​​smoking, but he had no choice but to give up the idea due to the current situation.

Are blockchain and Bitcoin the same thing?

In fact, blockchain and Bitcoin are not the same thing. It is just the underlying technology of Bitcoin. Bitcoin is the first digital currency applied by blockchain.

In 2008, Satoshi Nakamoto first proposed the concept of blockchain. In the following years, it became a core component of the electronic currency Bitcoin, serving as a public account book for all transactions. Blockchain was first applied to Bitcoin.

The origin of blockchain is to solve the problem of trust, and one of the most successful applications of blockchain is digital currency. Bitcoin is arguably the most successful application of blockchain so far.

What are the applications of blockchain?

The application of blockchain is actually very wide. In addition to digital currency, the future applications of Bitcoin are still very extensive. Blockchain technology has been widely used in different industries. Such as product traceability, copyright protection and transactions, payment and settlement, Internet of Things, digital marketing, medical care, etc., promoting different industries to quickly enter the "blockchain+" era.

1. Payment and settlement: Blockchain can abandon the role of intermediary banks.Realize point-to-point payment, reduce transfer fees, and accelerate capital utilization.

2. Product traceability: For example, if we buy a piece of clothing on a certain store, we can see the past and present life of this piece of clothing.

3. Securities trading: Traditional securities trading requires the coordination of four major institutions, which is inefficient and costly. Blockchain technology can independently complete one-stop services.

4. Supply chain: Introducing blockchain technology into the supply chain system, synchronizing information within the system can control all links, better complete division of labor and collaboration, and facilitate subsequent accountability.

5. Intellectual property rights: With copyright on the chain, our photographic works, musical works, literary works, etc. will become our information, and the ownership of the information will be confirmed and become our property.

⑷ What is blockchain ppt

From an academic perspective, blockchain is a new application of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms. model. Blockchain is essentially a decentralized database.
For example, if you are a woman, every time your boyfriend says something disgusting to you or promises to buy you something, you immediately record it and send it to all your best friends, classmates, Colleagues, as well as various groups and circles of friends, make it impossible for him to deny it anymore. This is called blockchain.
The core advantage of blockchain technology is decentralization. It can achieve decentralized credit in a distributed system where nodes do not need to trust each other by using data encryption, timestamps, distributed consensus and economic incentives. Point-to-point transactions, coordination and collaboration, thus providing solutions to the problems of high cost, low efficiency and insecure data storage common in centralized institutions.
The application fields of blockchain include digital currency, certificates, finance, anti-counterfeiting and traceability, privacy protection, supply chain, entertainment, etc. With the popularity of blockchain and Bitcoin, many related top domain names have been registered. , which has had a relatively large impact on the domain name industry.

⑸ Blockchain + supply chain transforms into a demand chain, creating a new model of supply chain development!

In 2018, a disruptive technological revolution is coming crazily, and the protagonist is - blockchain.

Blockchain technology is considered to be the next generation of disruptive core technology after steam engines, electricity, and the Internet. If steam engines release people’s productivity and electricity solves people’s basic living needs, The Internet has completely changed the way information is transmitted, and blockchain, as a machine for building trust, will likely completely change the way value is transmitted throughout human society.

The "blockchain+" revolution has begun in industries such as medical care, finance, and smart manufacturing, and will undoubtedly have an important impact on the supply chain. Supply chain management and supply chain finance, because the market size is large enough, can satisfy multiple trust entities and multi-party collaboration., medium and low-frequency transactions, and complete business logic are the natural places for blockchain to come into play.

1. Problems in the traditional supply chain

Supply chain management has a large span and information asymmetry

The current supply chain has a large span between upstream and downstream. There are many companies involved, and the core company's management capabilities and scope of influence on the entire supply chain are limited. Management efficiency has dropped significantly and management costs have increased.

The product production cycle and supply cycle have become complex, fragmented, and geographically decentralized. Traditional technologies and concepts can no longer adapt to today's commodity production and supply.

Generally, enterprises can manage up to level 1 or 2 suppliers. With the continuous refinement of the global division of labor, the number of suppliers has doubled, continued to extend, and spread all over the world. Core enterprises cannot achieve real-time control over the goods circulated by upstream and downstream supply enterprises.

In the era of big data, information asymmetry will put enterprises at a disadvantage and even reduce the value of the entire supply chain ecosystem.

Weak ability to trace information back to the source

Due to the lack of transparency among companies in the supply chain, buyers and sellers lack an effective and reliable method to verify the products they buy and sell. of true value.

This means that the price paid by the buyer cannot truly reflect the cost of the product, which invisibly increases the overall cost of the supply chain.

At present, the supply chain is still unable to trace the sources of counterfeit and shoddy goods, illegal labor, money laundering and other illegal activities in each link of the supply chain.

It is difficult to obtain data from the entire supply chain

The information systems of the companies involved in the supply chain are scattered in the hands of different suppliers, including procurement, production, circulation, sales, and logistics. When information is completely separated, there is no information platform to store, process, share and analyze this information, which limits the potential value of rich data and information, and a large amount of information is unable to be collected or accessed.

At the same time, it also makes the verification and review of this information difficult and cumbersome, and the information exchange is not smooth, requiring manual repeated reconciliation, which also increases the audit cost of transaction payment and account period.

2. Blockchain + supply chain can solve many problems

Information is updated in real time and third parties are eliminated

Blockchain can build a A platform for all supply chain links such as suppliers, manufacturers, distributors, retailers, and logistics. On this platform, all enterprises form an alliance to record logistics, information flow, and capital flow on the chain, and track and supervise supply in real time. chainAll are dynamic and work collaboratively.

The entire supply chain is made transparent and visible. Multiple participants in each transaction can view the same transaction records, verify identities and confirm transactions without the need for third-party intermediaries.

Facilitates traceability

Transformed into ledger information shared by all participants throughout the entire life cycle of the transaction. It is communication based on the status of information rather than the delivery of information. Information that was obscure in the past is now clearly visible.

At the same time, the blockchain is a publicly issued ledger. The ledger has a decentralized structure. No party has ownership of the ledger, nor can it manipulate the data as it wishes. Blockchain can trace the entire process of commodity production.

3. New model of supply chain finance

Since the blockchain breaks the data silos of each enterprise, the big data given to the supply chain will have more data. Source, thus greatly improving the stock and quality of data, allowing big data to better play its role. At the same time, the non-tamperability of blockchain data also enhances the credibility of the data, making it possible for companies to use data for credit reporting, thereby promoting the establishment and prosperity of the big data trading market.

In supply chain finance, the bill platform built with blockchain technology can be combined with supply chain finance business to realize bill financing, issuance, payment bill splitting, statistical reports, clearing and settlement and other functions . Realize that digital bills can be paid and split quickly and openly and transparently under the witness of multiple parties, allowing the credit of core enterprises to be transferred to the upstream and downstream of the supply chain, creating a new model of supply chain finance.

Blockchain can benefit every link in the supply chain and improve the efficiency of supply chain management. Product supply chain collaboration model based on blockchain After the blockchain is added, data is shared among supply chain participants, and a complete and smooth information flow can be formed on the entire supply chain to ensure that participants can discover the operation process of the supply chain system in a timely manner existing problems and find targeted solutions to them, thereby improving the overall efficiency of supply chain management.

In this regard, blockchain technology has greatly accelerated product traceability and product recall, and reduced product quality risks. They will make manufacturing more responsive, enabling customizable customer orders—in effect, transforming supply chains into demand chains. As supply chains operate more like demand chains in this scenario, trust dilemmas like these may force manufacturers to look at blockchain solutions.

In the future, supply chains will be more dynamic, flexible and customer-oriented than today, and geographical location and long-term relationships will no longer be so important.