Q & A of blockchain knowledge
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.
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relying on blockchain technology, zero knowledge proof, code is law
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the system is planned at the beginning
@ block chain make complaints about
In the traditional supply chain finance, financing difficulty, high financing cost and cumbersome financing process have always been one of the bottlenecks restricting small and medium-sized enterprises to become bigger and stronger. Banks rely on the ability of core enterprises to control goods and regulate sales. For the sake of risk control, banks are only willing to provide factoring services to upstream suppliers (limited to first tier suppliers) with direct accounts payable obligations of core enterprises, or provide prepayment or inventory financing to their downstream distributors (first tier suppliers). As a result, the demand of secondary and tertiary suppliers / distributors with huge financing demand can not be met, the business volume of supply chain finance is limited, and the small and medium-sized enterprises can not get timely financing, which will easily lead to proct quality problems and damage the whole supply chain system
to solve these problems, we can make use of the characteristics of decentralized, tamper proof and distributed ledger of blockchain technology to build a blockchain supply chain financial platform
The core enterprise issues a / R certificate to the distributor. After the distributor signs the receipt, it indicates that it has signed the purchase and sales contract and the core enterprise delivers the goods Because of the shortage of funds, distributors need to borrow money from finance3. After the financial institutions have approved, the amount of loans will be sent to the core enterprises
The distributor will repay the loan and interest after selling the goodsTwo steps, the first step to determine the direction, the second step to determine the details < H2 > has the following directions:
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I just want to know what it is
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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 > -
direction 1
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direction2
< / 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 >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
more information about crusher can be obtained online by consulting experts to help solve related problems.