Design of blockchain network deployment

1. Go is an open source programming language, which makes it easy to construct simple, reliable and efficient software. If you want to learn this programming language, you should first find a good tutorial. Brother Lian's go language + blockchain training has recently published a new set of go language tutorial, and the teacher's speaking is very good

with the global hot discussion of the concept of "blockchain", the application of blockchain technology has been quietly added to the daily life scenes such as finance, logistics, credit reference, manufacturing and retail. Some experts have shown that the future blockchain will be closely related to people's lives, and the integration of blockchain technology and people's daily life is the general trend

the popularity of the blockchain market has triggered a large number of talents demand based on blockchain technical personnel, and the popularity of blockchain talents is rising at the speed of light. According to the "2018 blockchain high salary list" released by lagou.com, Tencent, Xiaomi, Suning, Jingdong and other domestic enterprise giants have released many high salary blockchain post demands, trying to explore blockchain related technologies and applications. It is also pointed out in the list that the demand for high salary jobs is mainly based on blockchain related technical jobs, among which Suning and Keda have been given the highest monthly salary of 100k

the huge market demand for technical talents will inevitably lead to the explosive emergence and growth of the whole blockchain training market. Most of the training modes can be divided into online training, traditional IT organization training, and offline short-term training camps, which mainly focus on high-end forms. However, in the process of the hot market evolution, there are also a variety of blockchain training chaos: lecturers' qualifications are watered down, and even the most basic names are not disclosed, the syllabus is opaque, and the teaching quality is shrinking, Unreasonable class arrangement and uneven training fees and so on

with the large-scale development of the whole blockchain training market, brother company ecation, together with Yin Cheng, a senior blockchain expert, and his Tsinghua Shuimu Weiming team, has set up a blockchain college. With its professional and powerful team of technical lecturers, detailed and comprehensive curriculum system, and a large number of authentic enterprise blockchain projects, it aims to deepen the blockchain teaching and training field, And train more professional technical talents for enterprises and society<

Yin Cheng, a senior blockchain technology expert, graated from Tsinghua University, is the dean of brother Lian blockchain college. He once served as Google Algorithm Engineer, the world's most valuable expert in the field of Microsoft blockchain, and the gold medal lecturer of Microsoft tech.ed conference. Proficient in C / C + +, python, go language, sicikit learn and tensorflow. With 15 years of programming experience and 5 years of teaching experience, senior software architect, Intel Software Technology expert, famous technology expert, with many years of working experience in the world's top it company Microsoft Google. He has many years of experience in software programming and lecturing, and has developed many procts in human-computer interaction, ecation, information security, advertising and blockchain system. He has deep experience in project management and R & D, has two AI invention patents, and has practical experience in developing e-money deployed to Microsoft Windows azure. Teaching explanation is in simple language, so that students can apply what they have learned
the first stage: blockchain instry and go programming for 5 weeks
the second stage: cryptography and consensus algorithm for 2 weeks
the third stage: Ethereum source code analysis and development for 3 weeks
the fourth stage: Super ledger and node.js for 2 weeks
the fifth stage: bitcoin & EOS for 4 weeks
the sixth stage: comprehensive actual combat of the project

2. In many cases of blockchain commercial application, we can always see the word baas. Baas is the abbreviation of blockchain as a service, which is translated into "blockchain as a service" in Chinese. So what is blockchain as a service baas? With this question, we will follow Xiao Wang of Renren blockchain technology team to discuss it carefully
according to Xiao Wang, the concept of blockchain as a service (baas) is mainly proposed by Microsoft and IBM. To put it bluntly, it is actually a new type of cloud service, a cloud service combined with blockchain technology. For example, Microsoft's azure cloud computing platform and IBM's bluemix garage cloud platform all provide blockchain as a service baas
blockchain as a service (baas) is a space created by enterprises such as Microsoft and IBM from their own cloud service network to run a blockchain node. Compared with ordinary nodes and exchange nodes, the main purpose of baas nodes is to quickly establish the development environment they need, and provide a series of operation services based on blockchain, such as search query, transaction submission, data analysis, etc. these services can be centralized or decentralized to help developers verify their concepts and models faster. The service of baas node is reflected in: it is more instrumental and easy to create, deploy, run and monitor blockchain.

3.

When it comes to offshore companies, they usually choose to register in the islands. Some domestic giants, such as Ali, tengxu, Shanda network, Xiaomi and Haidilao, set up overseas IPO structures by registering offshore companies in the islands

advantages of offshore companies registered in the islands:

1. Full tax exemption system (only a small amount of annual management fee)

2. Company information confidentiality (high degree of confidentiality)

3. Overseas IPO structure (Tencent, Xiaomi and other domestic giants build overseas IPO structure by registering offshore companies)

4. Freedom of name (Chinese can be added)

5 No foreign exchange control

6, no specific business scope, as long as not engaged in illegal and criminal activities or need to franchise instry

Second, the non-profit foundation of Singapore can issue relevant legal opinions to prove that the operation of the company is in line with the current laws of Singapore

The main contents of the legal opinions are as follows:

1. White paper modification: the white paper of the project shall be modified where it does not comply with the laws and regulations of Singapore, and a professional legal compliance opinion shall be issued by a lawyer

2. Token non securitization certificate: the lawyer issued a professional legal opinion to clarify in detail that the token issued by the project does not have the nature of securities

4. The first part: build your own blockchain directory from 0 to 1:
1.1 start with imitation, First knowledge of blockchain
1.2 basis of blockchain: analysis of consensus mechanism
1.3 design principle and method of consensus mechanism
1.4 how to quickly clone a blockchain
1.5 how to turn bitcoin into its own private chain - bifurcated bitcoin
1.6 how to turn Ethereum into its own private chain - bifurcated Ethereum
1.7 how to turn ripple into its own private chain - bifurcated Ripple
1.8 how to turn stellar into a private chain of its own, How to develop your own blockchain wallet (windows and MAC) 1.11 how to develop your own blockchain wallet (Android and IOS) 1.12 how to develop an online wallet similar to blockchain.info 1.13 how to increase the security and robustness of your own blockchain network 1.14 how to use coin to handle recharge withdrawal business
1.15 How to use the fund pool to build a mixed currency service
1.16 how to design a new mining algorithm
this process is generally used, but it is also very difficult for ordinary people to complete. The mature projects of blockchain include Ethereum, decent, bitcoin and so on.

5.

There is a SIA blockchain network disk, which has been distributed all over the world

the storage capacity is 2.9pb, but the storage provider has 312 nodes less

in addition, BIFI Pro is also building such a blockchain network disk

6. Brief introction: Shenzhen blockchain is a blockchain technology service provider, whose main business is the development and application of blockchain technology, and is responsible for the commercial activities between China and Spain. It will test run a trading platform overseas, and release a distributed intelligent shared blockchain network protocol and world Datong virtual currency at the same time. The project is widely used in social security, news culture, network finance, artificial intelligence, supply chain, Internet of things and other instries
legal representative: Pu Jianwei
time of establishment: December 9, 2016
registered capital: RMB 80 million
business registration number: 440301118263068
enterprise type: limited liability company (sole proprietorship of natural person)
address: 15th floor, a8 music building, 1002 Keyuan Road, Yuehai street, Nanshan District, Shenzhen City

7. Blockchain service network is an Internet like blockchain infrastructure. It is the world's first blockchain service network based on blockchain technology and reflecting the second generation of intelligent Internet. It is also the largest alliance chain in the world. It provides high-level technical solutions for the development of smart city and digital economy in China Credible service carrier and infrastructure of modern social governance system
at present, the overall planning and top-level design of the blockchain service network have been completed, and the construction of more than 40 public city nodes in 31 provinces and autonomous regions has been completed. The blockchain service network will be tested internally for half a year. In the future, China UnionPay, together with the state information center, China Mobile and other partners, will actively promote security and function testing, technical architecture optimization, business operation scheme formulation, basic service capacity building, innovative application promotion and other work, and finally realize the commercial operation of the whole system
interested developers can view it on the official website of the blockchain service network.

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9. In most well-known projects, stacking has no limit on the number of mortgage tokens for a node, such as EOS, Tron, cosmos, etc; Or through the mortgage rate to make certain restrictions, such as tezos, wanchain and other projects. However, ETH 2.0 is very different from these entrusted mortgage models. Each node of eth 2.0 needs mortgage, and it can only mortgage 32 eth. If I have 320 eth, I need to build 10 nodes
this kind of stacking design of eth 2.0 is compatible with its fragmentation chain structure. By setting the fixed mortgage number of 32eth compulsorily, the number of nodes in the whole network is relatively large, and the head node with huge mortgage number will not have monopoly accounting control right in a fragmentation chain, Therefore, the degree of decentralization of eth 2.0 mining will be improved to a certain extent
the second difference: principal and income are not one kind of currency, which can not be traded in the early stage
except for ontology, vechain and other al currency structure design projects, generally speaking, stacking mining is "lock what currency, earn what currency", but eth 2.0 locks eth token on the main chain of pow, and the income released is Beth token on the beacon chain. They are essentially two kinds of currency. Because the two chains will not be interconnected soon, the transaction prices of Eth and Beth in the open market will not be exactly the same
at stage 0, which is expected to go online next year, ETH 2.0 will not have the trading function. Even if the verifier (node) withdraws from staging, the principal and income can not be transferred out of the account. Therefore, all the principal and income of the early participating nodes are almost locked. We can only wait for the further development of eth 2.0 to graally realize the account trading function
the third difference: in the early stage, there was no decentralized entrusted mining
the function of "entrustment" can separate the token from the block right carried by the token, and the token holder can entrust the block right to trusted nodes to participate in consensus and win awards on behalf of them, which is also the reason why stacking is widely known by the public and is becoming popular. However, in the first two phases of eth2.0 (phase 0 and phase 1), there is no decentralized entrusted mining, which means that the coin holder can only set up its own node to run, or hand over the coin to the centralized mine pool to mine on behalf of it. However, agent mining is equivalent to transferring the coin to someone else for trusteeship, which has the security risk of capital
secondly, we need to understand the participation conditions of Ethereum staging
the participation threshold of Ethereum staging is not very high. In terms of hardware, the performance of home computer can run a node. Ethereum hopes to encourage more money holders to participate through low threshold, so as to achieve the goal of decentralization as much as possible
because the coin holder is not a professional node operator, it is generally unable to guarantee the 24-hour operation of the node. Therefore, in the design of the economic model, the penalty of Ethereum stacking for the node offline is very small, about 1% for three consecutive days, but the longer the offline time is, the greater the penalty will be, and 50% for 21 days offline
for the participants, 24-hour operation of the node can ensure the maximum revenue. At the same time, it is also necessary to do a good job in node version upgrade, prevention of "double flowers", fault monitoring and disaster prevention. At that time, some node operators will launch professional node operation services
after understanding the above information, let's take a look at the revenue analysis of Ethereum stacking
the annual SEO rate of eth 2.0 changes dynamically with the whole network pledge rate. According to the published rules, the relationship between the annual SEO rate and the whole network pledge rate is 0.5 power. The higher the pledge rate of the whole network, the higher the annual additional issue rate, and the lower the annual return rate of a single node. When the whole network pledge is 10%, the annual yield of the node is 5.72%.

10. Website is no longer mysterious, no longer what high-tech live. Ordinary users can easily establish a relatively professional website. Here is a brief introction to some of the processes and considerations of personal station< First, domain name
in order to let people visit their own website, domain name is essential. Domain names should be as short and easy to remember as possible, such as. Top domain names. Of course, there are not many easy to remember and characteristic domain names now. You need to consider it yourself, as long as you think there are certain rules or it is convenient for users to remember
Second, space
to build a website, there must be a space, that is, a place to store the website. For indivial users, it is recommended to purchase virtual host. When purchasing a virtual host, you need to see its service, speed, response time, etc. Generally, you can choose a well-known service provider
note: at present, the domestic service providers with better domain name and space, such as alicloud, Western Digital and China data, are very good choices< Third, the website program
of course, the website program is ready-made, because indivials do not need to start from scratch to develop a website program, and they do not have the strength. Now there is a ready-made website management system on the Internet, and there are many such systems, which can be selected on the basis of their own comprehensive trial
when choosing a website program, we must also consider its versatility and secondary development. For the general bad, not concive to the second phase of development, although powerful, but not recommended, because the site has a certain scale, the need for personalized function design will be very troublesome. In addition, ASP (ASP. Net) is the best choice for the program. PHP and JSP are not very popular in China; Asp.net should be chosen as far as possible between ASP and asp.net. After all, its development trend is based on. Net architecture
Fourth, website design
after choosing the website program, you need to design the website according to your own needs. Generally speaking, if there are professional artists and programmers to modify the nature of the best. But indivial stationmaster may not have this kind of condition, can choose the intelligent station of service provider.