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Blockchain principle and traceability system

Publish: 2021-04-17 17:35:33
1.

At the beginning of self-learning blockchain related knowledge, we can adopt the "bottom-up" method, that is, through reading books, reading white papers , we can check the information , and then summarize and connect these knowledge , and integrate them into a relatively complete knowledge system

so I went to the bookstore and bought a of the Analects of Confucius. I read it from the beginning to the end and found that there were too many details and insights in it, which could not be transmitted through any interpretation. Actually, I spent a lot of time and read a lot of interpretation before. I really want to abandon the essence and pursue the end. I have to work hard

it's the same in every field. When you don't understand it, you will have a kind of inexplicable fear of it, thinking that it is high and unattainable. In order to step into these fields quickly, you will look for a lot of so-called "interpretation" and "news" around it

2. technical perspective

Basic Stage:

1. Blockchain Development Guide - author Shentu Qingchun:

the author's research on the bottom layer of rendant bitcoin is very in-depth, and the explanation is very easy to understand

2. Blockchain technology guide - author Zou Jun:

as the first domestic book to explain blockchain from a technical perspective, it is worth reading. Since its publication in 2016, it has been consistently evaluated well

3. Principles, design and application of blockchain by Yang Baohua and Chen Chang:

as the CTO of Zhigui, Chen Chang remembers that the previous ink chain was based on hyperledger fabric, so this book has a thorough explanation of hyperledger related open source procts

3. Blockchain world is divided into two parts. The first part comprehensively reviews the birth, growth and graal development of blockchain in 2008 through full and accurate information, introces in detail the originality of blockchain technology, the scientific mechanism and the artistic logic, and introces the application characteristics of blockchain through more than ten instry scenarios such as finance, anti-counterfeiting and medical treatment. In the second part, combined with the spirit of G20 summit and the 13th five year plan, the author explores the combination of blockchain and digital economy, as well as the author's views and suggestions on the development trend of the instry

2. Of course. One of the characteristics of blockchain is decentralization, traceability and non tampering of information. Now commodity traceability has always been a hot area for blockchain technology landing. As early as 2017, tmall global launched the global traceability plan to track the information of imported commodities by using blockchain technology
the traceability of blockchain technology is used to increase the traceability and security of commodities through the deep combination of logistics management, commodity anti-counterfeiting, commodity traceability, manufacturing management, instry collaboration and other fields. Password finance, focusing on blockchain information.
3.

From the farm to the dining table, blockchain Traceability Technology is equivalent to buying a liability insurance for the proct

bathing crab and clenbuterol. In recent years, there have been food with white cubes (formaldehyde sodium bisulfite), poultry feeding hormone, flour with whitening agent, seafood soaked in formaldehyde, etc. in the market, there are more ripening agents and expanding agents sprayed on fruits, Spraying highly toxic pesticides on green vegetables makes people feel discolored. Food safety and health are becoming more and more important to us. Therefore, the blockchain Traceability Technology - a technology that can trace all agricultural procts from planting to selling has emerged

before making clear the Traceability Technology of blockchain, we should first make clear the difference between "traceability" and "traceability"

"traceability" includes logistics tracing and origin tracing. People often regard traceability and traceability as the same thing. In fact, what enterprises care about is tracing (don't lose the goods), and what consumers care about is tracing (whether the goods I bought are safe or not)
traceability is the most important feature of sanqingliangtian, which is a powerful means to ensure food safety. It starts from the source of planting, and controls the source, proction and processing, cleaning and disinfection, sub packaging, packaging, storage, transportation, sales, etc

in a word, to be exact, food traceability is a cost and an essential early investment, which is equivalent to purchasing a "liability insurance" for your proct. Maybe you can't see the effect in a year or two. When you really use it, it may be the straw to save your life

4. Let's take vonetracer, the blockchain traceability platform of wangchain technology, as an example. Blockchain technology can record all links such as proct planting, factory manufacturing, logistics transportation, warehousing and sales on the chain. After users get the proct, they can scan the QR code to see the traceability of the proct.
5. How to get to London is like you don't know how to get to London! "?
6. The blockchain traceability system can track and record the proction, processing, transportation, circulation, retail and other links of goods. The combination of the two characteristics of the blockchain data can not be tampered with and the transaction can be traced can eradicate the problem of fake and shoddy procts in the process of proct circulation in the supply chain, solve the trust problem existing in the traditional traceability, and protect the rights and interests of consumers. Cipher finance mimacaijing focuses on blockchain information.
7. The traditional traceability system either uses today's centralized account book model, or records and preserves by various market participants in a decentralized and isolated way, which is an information island model. In the centralized ledger model, who is the center to maintain the ledger becomes the key to the problem. Whether it is the source enterprise or the channel business, because they are all stakeholders in the circulation chain, when the account information is not concive to themselves, they are likely to choose to tamper with the account or falsely claim that the account information is lost e to technical reasons.
8. The administration building of Shenzhen Airlines base is on terminal 4 road, about 1km away from the terminal. It takes 20 minutes to walk from Bao'an airport
there is no bus. If you are in a hurry, you have to take a taxi. Check in floor map
< p class = "f-aid" style = "margin: Auto;" > This data comes from the network map, and the final result is subject to the latest data of the network map

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