Lecture 2 on basic knowledge of blockchain

1. If you are interested in blockchain technology, you can learn the knowledge of cryptography at the beginning, and learn how to strengthen contracts other than trust through numbers. This is the most basic principle of blockchain. Then you can look at the programming books, understand the basic code, and do simple programming. After that, you can download some common blockchains, Study its code arrangement, see how it adds contracts, and make simple modifications to build its own smart contracts. Of course, if you are only affected by the recent price and hype and decide to join the instry, I suggest you learn more about the Bulls who hype it, listen to their opinions, and learn how others reap!

2. Do you want to learn blockchain development technology or just want to know what blockchain is? If it is the former, you can look at the code of other blockchain projects and learn about it first. If it is the latter, we can pay attention to some good blockchain we media. Blockchain is an emerging instry. There is no ready-made training course. It depends on self exploration and understanding.

3. In a word, blockchain is essentially a decentralized database
whether it's the introction in the network, the answers given by everyone, or the simple and easy to understand introction, you may not really understand blockchain. It's recommended to read more relevant information to understand its landing application. Cryptofinance focuses on blockchain information

4.

How many weeks is the

go full stack + blockchain course? How many stages? How long does each stage last? What is the degree of completion of each stage

a total of 22 weeks, divided into five stages,

the first stage 4 weeks go language foundation and network concurrency, after learning the introctory go language,

the second stage 4 weeks go language practical web development, crawler development, cryptography, consensus algorithm, to achieve lightweight public chain, after learning can develop golang website, crawler, Achieve lightweight blockchain

phase 3 4-week Ethereum source code analysis and smart contract DAPP development, master Ethereum core and smart contract development, as well as blockchain,

phase 4 4-week super ledger, bitcoin EOS, source code analysis and smart contract combat, master super ledger development, cat bitcoin, bifurcated EOS after learning, As well as the intelligent contract DAPP development

phase V 6-week project actual combat, five enterprise level projects, one year of blockchain project experience after learning

5. Blockchain: from digital currency to credit society

6.

1. Application of blockchain technology in the banking instry the biggest feature of blockchain technology is decentralization, which will rece a lot of costs for the banking instry. The development of digital currency will make it possible for banks to realize real-time digital transactions. For example, in bill transaction, bank bill transaction always relies on the third party to realize the transfer of valuable documents. Even in electronic bill transaction,

also needs to be authenticated through the information of central bank ECDs system. The blockchain technology can realize the point-to-point value transmission, which no longer needs centralized system control. This not only speeds up the bill transmission speed, but also reces the mistakes caused by human factors. The rection of process will naturally rece the demand of the bank for personnel and save the labor cost of the bank

2, the application of blockchain technology in the insurance instry

blockchain technology also has incomparable advantages in the insurance instry. From the perspective of data management, the application of blockchain technology can effectively improve the risk management and control ability of insurance companies, including the risk supervision of insurance companies and the risk management of policyholders

the application of blockchain technology in the insurance instry can strengthen the internal risk supervision of insurance companies. Blockchain technology can record the daily operation process of insurance company on the node, realize the in-process control of the company's capital flow, investment situation, compensation amount and other business, and improve the company's risk management and control ability

3. Application of blockchain technology in the securities instry

4, blockchain technology and financial infrastructure

blockchain technology is a decentralized mechanism for value exchange, which will lead to earth shaking changes in the existing financial infrastructure characterized by centralization

5. Application of blockchain technology in supply chain, It has become an effective guarantee for enterprise bank's loan credit, financing credit and transaction credit

7. Give you an easy to understand example, you can quickly understand what blockchain is:
in a village, a spent 3000 yuan to buy a cow of B, how to record this account
so a and B found a mutual trusted C to record the account, but later a and C colluded and did not admit that a had bought B's cattle, so the deal became rough and disputes continued
later, B had another cow. Of course, B didn't sell it to a this time, because a had no credit, so he gave it to d. This time, instead of looking for witnesses, they went to the whole village to roar after the transaction. B said Wang Erhua paid 3000 yuan to buy a cow from me, d also went to the whole village to shout that I paid 3000 yuan to buy a cow from B, so there were many people in the village to record the transaction. In this way, there will be no bad debts, which is called decentralized and distributed accounting
here comes the problem
when you yell, are the villagers willing to charge for you, just because you have a big face
therefore, the first person to record accurately will get some bitcoin rewards
someone asked, what if two people finish the first record at the same time
in order to avoid this problem, it is necessary to set rules, for example, to answer a question first, or to record with feet, and it must be written in block letters. If you set a series of rules, there will not be many firsts
in the network, there are a lot of transactions going on every day, and there are also many people recording, and finally they get the reward of bitcoin. This process is the legendary mining
Mining requires a lot of equipment. We call these computer equipment mining machines
in this way, all the processes are in one system. The system will encapsulate the data every 10 minutes to form a box full of data, which we call blocks
with the continuous generation of blocks, they are linked together to form a blockchain.

8.

Two steps, the first step to determine the direction, the second step to determine the details < H2 > has the following directions:

1. I just want to know what it is

2. I want to be engaged in the blockchain instry, development, operation, procts, and even blockchain entrepreneurship

< / OL > < H2 > the details of each direction are as follows: < UL >

3. direction 1
   

< / UL >

I want to know what blockchain is and what all kinds of currencies are for

this starts with bitcoin. Here we recommend the "bitcoin" by Li Jun, Chang Jia, et al. It can help you understand the common wisdom behind bitcoin, the principle of decentralization, the history of bitcoin, etc. Next, we will study various currencies. The larger domestic chains are qtum and Neo, and the larger foreign chains are EOS and eth. Study their white papers, teams, history, twitter, telegram groups, etc

at the same time, you also need a place where you can < EM > read the market, exchange ideas, and read articles < / EM > . Here are some common apps. For example, the commonly used app that looks at the price blockfolio ; You can use Babbitt app to read information, block news, news, and even find a place to brag; For currency information, please refer to non small app , which also contains a lot of content. Babbitt app is the one I use most, because its news is reliable and will not fake

< UL >

4. direction2

< / UL >

blockchain practitioners

as far as I know, the current practitioners in the blockchain instry have transferred more from Finance or computer majors. If you are a college student, if you want to work in the blockchain instry, you can consider studying finance or computer instry. If you are already working and want to join the blockchain instry, you need to learn the following. A "blockchain: from digital currency to credit society" by Changjia and Han Feng, you can get started with the basic knowledge of blockchain< blockchain technology guide can help you deepen your understanding of blockchain technology Blockchain revolution can take you into an upcoming revolution. Generally speaking, there are many things to learn

9. Lost tens of thousands in stock speculation