What technologies are needed for blockchain development and recr

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. Blockchain technology belongs to the software development instry. If the technology is in place, it's certainly not difficult. Otherwise, if you don't know anything about it, it's extremely difficult. You can measure your own level and outsource if you can't

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

4. Blockchain as a technology, the essence of blockchain is a decentralized and distributed public ledger. Note that "public ledger" here is a logical concept. Each node maintains its own ledger data, and the so-called public ledger is to maintain consistency on each ledger, and the part that keeps consistency is the public ledger
generally speaking, blockchain companies need more technical talents, which is more concive to the development of the company. In addition, the long-term operation of the company is also a very important thing
from a small perspective, blockchain is still unfamiliar to the public, and more often, it needs more publicity and promotion.

5. 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.

6. More and more people want to join in the development of blockchain. What are the requirements for the development of blockchain? In addition to a solid programming ability, but also skilled in a variety of related technologies. It can be summarized as the following four points:
1. Continuously improve the blockchain Technology: improve the parameters, performance and ease of use such as operability and scalability, and at the same time generate new technologies such as side chain, sub chain, cross chain, layering, fragmentation and zoning, so as to promote the technical maturity of blockchain
2. A real payment instrument is indispensable as the carrier of value scale, value storage and exchange medium. Bitcoin's value is very unstable, so it will not become a payment tool. Stable currency is likely to be qualified for this position. The central bank government can consider issuing legal digital currency as a general blockchain payment tool
3. The regulatory system and laws and regulations of blockchain should also keep up. Users' digital assets need legal protection, and institutions participating in blockchain projects also need to be supervised to ensure legal compliance. Therefore, blockchain cannot be absolutely decentralized, and its decentralization is more relative to the Internet
4. Improve the security of blockchain:
confidentiality: also known as confidentiality, means that data will not be leaked to unauthorized users or entities
integrity: ensure that the data can be quickly found in the process of transmission and storage without authorization
availability: refers to the ability of authorized entities to receive services in time when they need information. All kinds of network or node disruption, denial of identity, denial of service (DOS) attacks, delayed use, etc., will damage the availability
authentication is closely related to the above three elements. Only on the basis of identity authentication can effective authorization be managed
in addition, data privacy protection is also very important. With the development of artificial intelligence technology, people are more and more aware of the importance of private data, and realize that it not only involves personal privacy, but also has commercial value. Blockchain and its encryption algorithm can not only protect private data, but also bring real benefits to users. This will become an important development direction of blockchain.

7. The underlying development of blockchain can't be realized by Java
as the upper development, you just need to dock according to the given open source interface, and then use the language you are good at to develop what you need
now there are many blockchain system templates, you can go to see what development cases there are

8. < UL >

the underlying development of blockchain can't be realized with Java

as the upper development, you just need to dock according to the given open source interface, and then develop what you need with the language you are good at

now there are many blockchain system templates, you can see which development cases

< / UL >

9. It's not hard to develop, but it's hard to find a profit point

the latest technology application of blockchain: born out of bitcoin technology in 2008, it provides a decentralized credit establishment paradigm without trust accumulation. The essence of blockchain technology is a decentralized and distributed data storage, transmission and proof method. It replaces the dependence of the Internet on the central server with data block, so that all data changes or transactions are recorded on a cloud system. In theory, it realizes the self proof of data in data transmission, This kind of point-to-point verification will proce a "basic protocol", which is a new form of distributed artificial intelligence. It will establish a new interface and sharing interface between human brain intelligence and machine intelligence

at present, almost all decentralized virtual currencies will use blockchain technology, such as bitcoin, Fuyuan, Laite, doggy and so on.

10. First of all, suppose a person with an empty backpack who has just started the game. On the first morning, it's better to roll the trees first to get enough boards and sticks, and make a wooden manuscript ahead of time. When you see the sun to the west, you're going to start looking for the mine

how to find it<

first press "m" to change the map type to cave

the place with deep color on the map is the mine cave, and the place with light color indicates high altitude.

if you can't see the mine cave, it means there is no cave in a certain depth, then you can try to dig down for a period of time, and generally you can see the mine cave

now what you need to do is to find a small mine - because what you need to do is not to dig, but to find a center for your mine

it would be better if you could get some coal

when you get to the mine cave, you'd better not dig the mine first, which may cause you to fall into a big mine cave

don't act rashly after you find the mine cave, check the whole cave first, and insert the torch. Seal all entrances to the ground

you can make a workbench first

you can also consider making a box, but I don't recommend that unless you have enough wood

you have to wait here for the next day unless you have a bed

on the second day, the first thing is to get out of the cave and build a cabin above your mine cave. It should be fully equipped with boxes, furnaces and fires. It's better to have a bed and a door. It's also necessary to figure out with the mine cave, but it's necessary to put a trap door to prevent monsters from climbing up in the middle of the night

you can do these things in a day

on the third day, you will start mining. First of all, you should take a good wooden manuscript (if you have stone, you can use stone manuscript), torch, food, wooden sword, and bow and arrow

and some stone and wood

of course, if there are stones, first integrate stone manuscript and stone sword< In the early stage, there were two kinds of most important ores:

coal mine and iron mine

iron ore is a necessary tool for making iron tools

if you want to excavate from your mine, you'd better make a door to separate your mine from other mines

the best shape of the excavated mine is 2 * 2 square type

if monsters are found, they should be eliminated in time, especially JJ monsters

remember, don't go into the big mine blindly, and don't go into the underground Canyon or abandoned mine.