300663 blockchain database
1.002657 Zhongke Jincai
2.300663 Kelan software
3.002152 radio and television express
4.300079 digital technology
5.300542 Xinchen technology
6.600570 Hengsheng electronics
< P > 7.300561 Huijin technology8.002063 high beam software
9.603106 Hengyin finance
blockchain concept stocks may become the leading stocks as follows:
1. Blockchain concept stock 1: easy to see stock (600093. SH) concept stock index
the company's main supply chain management has been actively transforming in recent years. On the one hand, the company strives to improve the business scale of supply chain management and commercial factoring
on the other hand, with the transformation of financial technology as the center and the application of blockchain technology in supply chain finance as the breakthrough, the whole policy has made every effort to promote the development of the "easy to see block" system. In the first half of 2017, the development of the "easy to see block" System 1.0 has been successfully completed, and it has been commercialized in the fields of medicine and large commodities
2. Blockchain concept stock 2: gawaita
is a leading financial information manufacturer in China. Relying on its own advantages in bank IT solutions and bank customer resources, gawaita provides bank it system cloud services
3, blockchain concept stock 3: Xinchen technology is mainly engaged in application software development business, software and hardware system integration business and professional technical service business. In recent years, Xinchen technology has made bold attempts in innovation. The company has made some progress in the application of new technologies such as cloud computing, big data, artificial intelligence and blockchain in the financial instry
the domestic L / C business system based on blockchain technology has been successfully launched in banks, and is expected to graally become a new growth point of the company's software solution business
the leading stock index is the stock that has influence and appeal on other stocks in the same instry ring the stock market speculation in a certain period, and its rise and fall often play a guiding and exemplary role in the rise and fall of other stocks in the same instry
leading stock is not unchangeable, its status can only be maintained for a period of time. The basis of becoming a leading stock is that any information related to a stock will be immediately reflected in the stock price
conditions for leading stocks:
1. Leading stocks must start from the trading board, which is the most accurate attack signal for both sides. Indivial stocks that can't be trading can't be leading stocks.
2. Leading stocks are the best low price stocks, and low price stocks are sought after by many investors, because high price stocks are difficult to speculate
3. The circulation market of leading stocks should be moderate, suitable for large capital operation and retail investors chasing up and down, and large market value stocks and small cap stocks can not be the leader
4. Leading stocks meet the daily KDJ, weekly KDJ and monthly KDJ at the same time
5. Leading stocks usually rise against the market limit at the end of market decline when the market panics, or start ahead of the market, and undergo a round of market decline test
the leading stock index is the stock that has influence and appeal on other stocks in the same instry ring the stock market speculation in a certain period, and its rise and fall often play a guiding and exemplary role in the rise and fall of other stocks in the same instry. Leading stock is not immutable, its status can only be maintained for a period of time
< H2 > reference: network leading stocksconstructor(index,timestamp,data,previousHash='&# 39;)< br />{
this.index=index;< br />this.timestamp=timestamp;< br />this.data=data;< br />this.previousHash=previousHash;< br />$this.hash=this.calculateHash();< br />}
calculateHash(){
return SHA256(this,index+this.previousHash+this.timestamp+JSON.stringify(this.data)).tostring();< br />}
}
class Blockchain{
constructor(){
this.chain=[this.createGenesisBlock()];<
}
/ / create a generated information block
creategenesis block() {
return new block (0, & quot; 01/01/2019",& quot; Genesis block", 0);
/ / the date is the user's data. In fact, it is the hash value obtained by adding several values together. Here, the information is encrypted and the picture is encrypted. Then the data is still stored in the database, but all the data are hash values. To get this data, you must know the hash value of the previous data block. Then, if the hacker needs to crack all the nodes, the hash value is decrypted, Then all the blocks from the first node to the last node can be decrypted to get the real data. So the security of data stored in the blockchain depends on whether the data is encrypted. If the plaintext is not encrypted, then it is not a blockchain
}
/ / get the last block
getlatesblock() {
return this.chain [this.chain. Length-1]
}
/ / create block
addblock (newblock) {
newblock. Previoushash = this. Getlatesblock(). Hash< br />newBlock.hash=newBlock.calculateHash();< br />this.chain.push(newBlock);< br />}
}
bitcoin trading platform has many running platforms, such as mtgox in Japan, bitcoin in China and so on
therefore, investors need to choose a reliable bitcoin trading platform. The reference factors are: 1. The longer the running time, the better; 2. The bigger the instry reputation, the better; 3. The larger the team size, the better; 4. Being able to visit<
it is suggested that China choose "fire coin net", which is cooperated by Wukou School of finance of Tsinghua University. Sequoia Capital has invested 10 million US dollars; The choice of coinbase in foreign countries is an important choice for Silicon Valley banks to invest.
College Students' innovation and entrepreneurship ideas include printing and ing services, leisure errands, school leisure food stores, college students' Tutoring instry, and online stores 1. Printing and ing service in fact, many schools have printing and ing stores. It seems that the market is saturated, but in fact, there is still a lot of space. Especially in the graation season, students have to print various reports, resumes and other information. The key to starting a business is to find the right location 5. Setting up shop on the Internet the sales volume of health care instry on the Internet is even more considerable than that of books and music. Buying daily necessities on the Internet is often favored by people because it can avoid the curious eyes of people on the street and face the situation of salesmen extended materials precautions 1, risk perception the risk perception of entrepreneurs depends on the entrepreneur's self-confidence, independent of plan, desire for control and other factors. Only those who have the courage to take risks can meet the challenges, invest their time, energy and financial resources and bear the possible losses 2. Alertness is also called entrepreneur early warning, which is used to reflect the ability of entrepreneurs to find out whether market opportunities exist or whether they have value. When one person has insight into the value of a resource while others don't, the warning has already appeared