Is blockchain mining safe

1. How hot is the blockchain? Even my mother knows this word, and many people around me also ask me about it
in fact, their real idea is to know how to make money. After all, how much has bitcoin gone up in recent years when all kinds of information came out on the Internet, and to what extent has blockchain become popular today, Internet companies in all halls have joined in. As ordinary people, they also want to splash in this "pond"

so what is blockchain< In a broad sense, blockchain technology is to use blockchain data structure to verify and store data, use distributed node consensus algorithm to generate and update data, and use cryptography to ensure the security of data transmission and access It is a new distributed infrastructure and computing paradigm to program and manipulate data by using smart contracts composed of automated script code
in short, blockchain is a decentralized distributed ledger database. Decentralization is different from the traditional way of centralization. There is no center, or everyone is the center; Distributed ledger database means that the recording method is not only to store the ledger data in each node, but also to share and the data of the whole ledger synchronously. At the same time, blockchain also has the characteristics of disintermediation and information transparency
let's give an example. For example, in our usual online shopping, after placing an order, our money will be transferred to the intermediary platform of the third-party payment agency. After the seller delivers the goods and the buyer confirms the receipt of the goods, the buyer will inform the payment agency to transfer the money to the seller's account
however, the transaction mode supported by blockchain technology is different. Buyers and sellers can trade directly without any intermediary platform. After the transaction between the buyer and the seller, the system publishes the transaction information in the form of broadcast, and all hosts receiving the information record the transaction after confirming that the information is correct, which means that all hosts have done data backup for the transaction. If there is a problem with the orders proced by this machine, its data information will not be affected, because there are countless machines backing up data at the same time
when it comes to blockchain, we have to mention bitcoin, as if you don't understand anything without putting the two together
in fact, although blockchain is a blockchain and bitcoin is bitcoin, most of the people concerned are
concerned about bitcoin, and not many people are concerned about blockchain. Even if he says that he is concerned about the chain, in fact, that is to make do with the excitement. What the other party is more concerned about is which kind of currency makes more money. How can I join in
in fact, what I want to say is that you don't have to catch up with every outlet. If you don't catch up with the stock market, we media, wechat business and artificial intelligence, so will the blockchain. New procts will soon replace it
What's the role of blockchain in making people so obsessed? Let's take the above shopping example to illustrate that the so-called bilateral transactions are not absent now, but they are both bilateral transactions. What if one of them does not deliver the goods to you after receiving the money, or if he does not accept the account after receiving the money
How can blockchain solve this problem
it's also a transaction, but in the process of transaction, everyone knows that the other party has given you the money, and you can't deny it. In the final analysis, it's a matter of credit value
what can blockchain bring us? Once there was such a news in the society that how to prove that your mother is your mother. Even if we have the ID card account book in our hands, we still need a government agency to identify it, which is cumbersome
with the help of the regional payment chain, we can establish credit with low cost through mathematical principles rather than centralized credit institutions. In this way, our birth certificate, household register and real estate certificate can be verified on the blockchain. Your mother is your mother's problem
another example is the food safety problem that has been implemented at present, and the rookie tmall Jingdong has started to use it. With the help of blockchain technology, a reliable mechanism has been established for all transactions, which enables procers, suppliers, processors, distributors, retailers, regulators and consumers in the food chain to obtain the source and status information of food at any time, so as to facilitate the tracking of contaminated food, accelerate the removal of problem food from shelves, and effectively prevent the spread of food safety problems
when consumers buy food, they can easily see where the food they eat comes from, how long it has been proced, and what fertilizer they have applied. For the arrival of blockchain, whether we are ready or not, we still have to see if we are not ready

2. For blockchain, mining is not necessary. There are many kinds of proof mechanisms, so mining is not necessary
blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. The so-called consensus mechanism is a mathematical algorithm to establish trust and obtain interests between different nodes in the blockchain system
European crowdfunding is also a blockchain crowdfunding platform based on blockchain development. Every crowdfunding project will issue a digital currency as an asset certificate, but this digital currency does not necessarily need to be mined.

3. Renren equity is the original equity issued by Hangzhou Zhongji Network Technology Co., Ltd., which was issued in the first half of 2016. The price of equity reflects the value of the company to a certain extent. In the middle of the year of 17, the development speed of Renren provident fund was fast, and digital currency was in the limelight. Many people were optimistic about the company when they bought shares, and wanted to have future dividends. However, the company was in a non-profit state for a long time. In line with the attitude of being responsible to users, they made the decision of Renren equity to Renren currency. The application of digital currency is in line with the current situation and has a better prospect. It took several months for Renren equity to be transferred to Renren currency, and the company bought back part of the equity and cancelled its circulation property. Recently, Renren Coin Wallet and white paper will be launched soon, and a complete Renren coin will be born.

4.

1. When the bulb was not invented a long time ago, many people used candle lamp, kerosene lamp and so on for night lighting, which made people's life more inconvenient. Edison was very distressed at that time. He was determined to invent a rable light bulb with bright light. So Edison constantly carried out various material tests in the laboratory. He had just started experimenting with a carbon strip, but it was too fragile to be used as a light bulb material. After his failure, he started experimenting with ruthenium and chromium. When the light bulb came on, he was very happy that this material was very suitable for making the filament of the light bulb, but about a few minutes later, the filament burned out

A few years later, Edison's failure was ridiculed as a daydream by many people. In the face of the doubt and distrust of others, Edison did not give up the filament experiment plan. Instead, he took this as the driving force to continue his own scientific experiment, so he experimented with a carbonized cotton swab as the filament material. He vacuumed the bulb, which lasted for a long time, but it burned out in 45 hours. Edison was so excited that he had tried more than 6000 experiments, and this time he was sure to find a breakthrough

After that, Edison began to do many filament experiments. Thanks to his efforts, he finally discovered that tungsten wire can be used as an electric lamp material, so he was overjoyed. Later, this material is the best material for light bulbs, the light is also very bright, and not easy to burn, suitable for long-term use. In this way, the light bulb will slowly enter the homes of ordinary people and become a necessary lighting tool for us at night

One snowy night, Edison's mother suddenly fell ill, and his father rushed to the doctor. The doctor said, "your mother has acute appendicitis and needs an operation.". At that time, there was only oil lamp, but no electric lamp. The light of the oil lamp was very dark, and it would be wrong if you were not careful. Edison suddenly thought of a good way, he took out all the oil lamps at home, and then put a mirror behind the oil lamp to let the doctor finish the operation smoothly. The doctor said, "son, you saved your mother with your wisdom and cleverness." Edison took his mother's hand and said, "Mom, I want to make a night's sun."

5. NB cloud mine, stable

6. At present, the blockchain has not been recognized by everyone. I suggest you not to be so impulsive!

7. Available balance + consumption amount without dection = account balance. You can log on to ebank.spdb.com.cn to enter the personal online banking financial management version and query the details. You can find it everywhere you spend it

8. Blizzard mining machine features high performance, stable system, fast packaging speed, high mining efficiency and many machine rooms.

9. Blizzard mining machine can ah, stable system, mining efficiency, fast, no need to say