Do you have to understand it if you want to work in blockchain

1.

However, where are the opportunities for these innocent employees? To put it bluntly, some blockchain entrepreneurs are bent on "empty handed White Wolf", and exploit layer upon layer through "deception". Using asymmetric instry information, blockchain, digital currency and other projects are over packaged, giving people a sense of "Hope". This part of the blockchain entrepreneurs' inherent "bad root", to a certain extent, has led to the instry's "sick" development trend

some blockchain entrepreneurs call for embracing the times, changes and the future, emphasizing the charm of decentralized "fairness". But in reality, it is for self-interest, which hurts the interests of job seekers and other related groups, which is a great injustice in itself

The asymmetry of information is not permanent. Blockchain, digital currency and so on are all areas worthy of attention, but they are not the capital that can be used by some entrepreneurs as unlimited squanders all the time. For the job seekers who want to join them, they should polish their eyes, otherwise they may be surprised if they are not careful

2.

At present, blockchain is not only applied in the financial instry, but also in the following instries, such as banking, payment and cash transaction, network security, academic records and academia, election, network and Internet of things, prediction, right and so on. There are still many areas that need blockchain technology. It can be imagined that the Internet + we mentioned before will become a blockchain + situation in the future

from the demand side, finance, health care, notarization, communication, supply chain, domain name, voting and other fields are beginning to realize the importance of blockchain and try to connect technology with the real society

from the perspective of the investment side, the supply of investment funds for blockchain is graally rising, the investment enthusiasm of venture capital is also rising, and the investment density is increasing. The supply of funds at the supply side is expected to promote the further development of technology

from the perspective of market application, blockchain can become a market tool to help the society rece the cost of the platform and make the intermediary institutions become the past; Blockchain will promote the shift of the focus of the company's existing business model, which is expected to accelerate the development of the company

from the perspective of underlying technology, blockchain is expected to promote the transformation of data recording, data dissemination and data storage management; Blockchain itself is more like an open source protocol at the bottom of the Internet, which will touch or even completely replace the underlying basic protocol of the existing Internet in the near future

from the perspective of social structure, blockchain technology is expected to integrate law and economy and completely subvert the original social supervision mode; Organizational form will change because of it, and blockchain may eventually lead people to a distributed and autonomous society

Where should we start to learn blockchain

first of all, we need to have a comprehensive understanding of the source and cognition of blockchain from a macro perspective. Why do we need to do this? Because if we don't understand, we will have no voice. We don't know how to judge that the next outlet is blockchain. Even if people follow suit, we also need our own learning solution as support. So, what do we need to know? I have listed the contents, For your reference only, if you already know something about it, you can skip this step:

1), basic theory of blockchain

2), basic programming (computer software and hardware foundation, character set and character encoding, HTML5 + CSS3 and other front-end technologies, ECMAScript + BOM + DOM, jQuery, node.js, Ajax and express framework)

3) Go programming language and database operation

4), blockchain 1.0 programming - bitcoin

5), blockchain 2.0 - Ethereum

6), Star Cloud chain and EOS development practice

7), blockchain 3.0 - fabric of super ledger

to you who are still struggling in the tuyere of blockchain: there is a market when there is demand, and the society never lacks excellent technical talents, After a good understanding (you can refer to Qianfeng's blockchain video tutorial), you must be firm and accurate

3. In 2017, he began to work in the blockchain instry for three years, which witnessed the instry from obscurity to sudden outbreak and then to calm. Let's make a conclusion first. If you are willing to spend money, I suggest you go to professional IT consulting and delivery companies like ThoughtWorks / starwalker. In my understanding, the market is roughly divided into

1. The underlying chain platform providers, such as ant / network, usually only provide chain and development tools, but the specific instry / scenario solutions and development delivery capabilities are limited, which is not their focus. They want to use blockchain to package and sell more cloud services

2. Blockchain solution companies usually provide blockchain solutions in their own familiar fields, but most of them are small and medium-sized teams or start-up teams. Most of them have little difference in blockchain technology capabilities and have a deep understanding in their respective fields

however, the biggest problem of such companies is that because the blockchain instry is still in its early stage, and there is no mature business model or profit model, most of them need external investment to continue their life, which leads to the difficulty in guaranteeing their service ability or continuous performance ability, and frankly speaking, their business is unstable

on the other hand, because it is not a professional end-to-end delivery or professional outsourcing, it does not have mature methods, team and project management to ensure the efficient and complete delivery of a blockchain solution. So for buyers, it is easy to get out of control in the process of project development, or it is difficult to get satisfactory delivery results in the end

there is also a common problem, that is, most customers do not know what to do with blockchain and how to combine their business to do a valuable and meaningful blockchain project. Under this kind of cognition, I blindly find a company to directly develop on the scheme, and it's easy to regret or even give up halfway after doing it. I see too many such projects, I can't figure out the situation, and I don't know what I want to do. It's easy to set up a blockchain. This kind of company usually does not have the ability of pre-sale business consulting, business analysis and planning, in other words, the ability to help you understand the situation. In a word, if you know what you want, it may be OK to find them. If you don't know, it's better to find a professional consulting company honestly

3. IT consulting and delivery companies, which are usually specialized in serving large customers in various instries, have a set of consulting and end-to-end delivery methods and team support. Well, there are not many blockchain businesses in these companies, because they are not limited to the narrow business of blockchain, such as Accenture or some domestic companies. However, ThoughtWorks is slightly different. It has a blockchain division, pre-sales consulting / business analysis services, and delivery services. Then it has blockchain projects in its own major customers in various instries. Automobile, finance, retail, energy, agriculture and so on

4. I can only say that this is an emerging instry. We should not care too much about the immediate gains and losses of interests. We should look at the long term, and opportunities are more important

blockchain technology is only a technical means of recording information, and its main characteristics are decentralization and transparency, which can be applied in any instry. The traditional mode of recording information needs the credit of the recorder to endorse it, and people have to pay for the credit cost. Compared with the traditional way of information recording, blockchain has unique advantages: everyone can record, and everyone has all the recorded information, which also means recing the cost of reputation. The so-called blockchain instry itself is a pseudo proposition, and technical means can be applied to any instry.

5. How to set up the block concept, deceive people, let people continue to invest in you, buy your procts, currency
foreskin company welcomes you

6. According to the current talent demand in the blockchain field, it can be roughly divided into the following categories:
1. Build a distributed ledger application based on DLT technology to realize the business requirements of customers on DLT. At present, the more famous one in this field is REBO. So what does DLT mean? Just look at what REBO is doing
2. Develop your own application on the existing public chain. At present, most companies are doing this. This category is also characterized by low threshold, high business potential and low risk
3. Companies develop their own public chains, which have the greatest potential in the future, but also have the highest risks and technical difficulties
4. Blockchain ecological infrastructure. For example, mobile wallet, hardware cold wallet, trading platform, blockchain content platform and so on are the blockchain instries with the highest commercial profits at present. Relatively speaking, the threshold is low and the risk is low, but there are many competitors
if we start from technology, what languages and knowledge do we need to learn
for the first class, go language is necessary, because DLT is mainly based on go language, and it also needs to master certain application development ability, because it must be a piece of software rather than a bunch of command-line source programs delivered to customers. For the second category, the mainstream of smart contract is the solidness language of Ethereum smart contract, so if you want to enter the second category of enterprises, you need to start with Ethereum. The third type of public chain development, the mainstream is C + + and go, but there are also many famous projects are implemented in trust, such as: Facebook's Libra, fire coin's nervos and so on. In fact, the fourth category has little to do with blockchain technology, because development such as trading platform does not need blockchain technology
in addition to the above technical hard power, blockchain companies prefer "slash youth", that is, talents who master multi field knowledge at the same time, which can be divided into three categories: finance and blockchain, content operation and blockchain, community operation and blockchain. Among them, the third kind of talents is the rarest, because most technical talents are not good at communication and exchange. However, e to its distributed characteristics, blockchain especially needs the joint efforts of the community to create and maintain a chain
in the end, many people mistakenly think that blockchain is a brand new instry, and that blockchain is totally different from traditional fields. This is actually a big mistake. From what has been written above, you can also find that in the end, blockchain still needs to solve the actual needs in reality. The only difference is that the tools to solve the needs have changed, so don't think that only knowing blockchain can kill all sides, It is very important to have the basic knowledge of the requirement field
the application fields of blockchain include digital currency, token, finance, anti-counterfeiting traceability, privacy protection, supply chain, entertainment, etc. with the popularity of blockchain and bitcoin, many related top domain names have been registered, which has a great impact on the domain name instry.

7. Blockchain belongs to it technology, and finance is an application direction of blockchain
the core advantage of blockchain technology is decentralization, which can realize point-to-point transaction, coordination and cooperation based on decentralized credit in a distributed system without mutual trust by means of data encryption, time stamp, distributed consensus and economic incentive, so as to solve the high cost and low cost of centralized institutions Low efficiency and data storage insecurity provide solutions
the application fields of blockchain include digital currency, token, finance, anti-counterfeiting traceability, privacy protection, supply chain, entertainment, etc. with the popularity of blockchain and bitcoin, many related top domain names have been registered, which has a great impact on the domain name instry.

8. The workflow of blockchain technology is as follows:
1 - the sending node broadcasts new data records to the whole network
2 - the receiving node checks the received data record information
3 - all receiving nodes in the whole network implement consensus algorithm for blocks
4-blocks are formally included in the blockchain for storage after the consensus algorithm process
nodes always regard the longest blockchain as the right one, and continue to verify and extend the chain in turn.

9. Blockchain is actually an emerging technology. The simplest thing is to play with digital currency. Now I'm doing it on bitmax. This platform is built by the senior quantitative team of Wall Street, which is very good in terms of security and technology.

10. This problem can be solved by Excel standard function, but it's a little boring
to ask a question, there must be a place in your original form where you can identify the currency, right? And before unifying currencies, you need to decide what your base currency is? RMB or USD or something
the information to be prepared is the exchange rate between each currency and the base currency
suppose you have only two currencies, RMB and USD, the base currency is RMB, and the exchange rate is 1usd = 7RMB
suppose the data table format is as follows
col a amount (numerical type)
col B currency
col C our target fields
column A and B are your original data, as long as you write excel function on column C
function = if (B1 = & quot; USD", A1 * 7, A1)

the sorting is nothing special, just the same as before. Excel sorting is not automatic, it is triggered manually, so if you want to sort, go to data - & gt; sort