Mining Jingdong seven days
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Mining bitcoin is also called mining. Starting from the essence of bitcoin, the essence of bitcoin is actually a special solution generated by a bunch of complex algorithms. A special solution is one of the infinite (in fact, bitcoin is finite) solutions that can be obtained from the equations. Every particular solution can solve the equation and is unique
in the metaphor of RMB, bitcoin is the serial number of RMB. If you know the serial number of a note, you have the note. The process of mining is to constantly seek the special solution of this equation system through a huge amount of calculation. This equation system is designed to have only 21 million special solutions, so the upper limit of bitcoin is 21 million
bitcoin: also known as "bitcoin", is a kind of network virtual currency. Internet users can use bitcoin to buy some virtual goods, such as clothes, hats, equipment, etc. in online games. Internet users can also use bitcoin to buy real goods
extended data:
shortcomings
first, the vulnerability of trading platform. The bitcoin network is robust, but the bitcoin trading platform is fragile. Trading platform is usually a website, which will be attacked by hackers or shut down by competent authorities
Second, the transaction confirmation time is long. When bitcoin wallet is first installed, it will consume a lot of time to download historical transaction data blocks. While bitcoin transaction, in order to confirm the accuracy of data, it will take some time to interact with P2P network, and the transaction will be completed only after the whole network is confirmed Thirdly, the price fluctuates greatly. Due to the intervention of a large number of speculators, the price of bitcoin for cash fluctuates like a roller coaster. Making bitcoin more suitable for speculation rather than anonymous trading Fourthly, the public did not understand the principle, and the traditional financial practitioners resisted. Active netizens understand the principle of P2P network and know that bitcoin has no legal person to manipulate and control. But the public doesn't understand, and many people can't even tell the difference between bitcoin and q-coin“ "No issuer" is the advantage of bitcoin, but in the view of traditional financial practitioners, "no issuer" currency is worthless
bus line: No.5 → No.206, the whole journey is about 3.9 km. This art school and art college are not on the same road
1. Walk about 190 meters from the ticket office of Anji station in Jiangnan station to Renmin Chaoyang intersection station
2. Take No.5 bus, pass 3 stops to Minzhu Yuanhu intersection station (or take No.57 bus)
3. Take No.206 bus, pass 3 stops to Yuanhu Dongge intersection station
4. Walk about 150 meters to Guangxi art school
This is exactly the act of fraud by taking advantage of the loopholes in the rules of Jingdong, and this kind of greedy behavior has had a certain impact on the operation of Jingdong digital edition
1. JD doesn't support return of all mobile phones for 7 days without reason
seeing the problem of the subject, I went to JD for a tour and found that not all mobile phones support return of mobile phones for 7 days without reason
in the return rules of Jingdong, it is clearly stated that only the self operated goods of Jingdong can be returned without reason within 7 days, and only some goods can be returned; If it is a third-party business, there is basically no such after-sales service
whether it is apple or JD, their policy starting point is good, they are all in order to give consumers a better consumption experience, but in the end, they have to modify the rules forced by a small number of people. At present, the rule of return without reason only exists in self operated stores. If there are more and more such people, it is possible for Jingdong to cancel return without reason in the future. So don't be greedy for such a small bargain< br />
This is exactly the act of fraud by taking advantage of the loopholes in the rules of Jingdong, and this kind of greedy behavior has had a certain impact on the operation of Jingdong digital edition
Some people's behaviors damage the interests of all peopleno matter the mining machine or the unlimited use of new mobile phones mentioned by the subject, they are actually very indivial behaviors, and the quality of most people is relatively high; However, it is this lost person who abruptly cancels the rule of no reason return, which is especially friendly to consumers
in fact, it's not only jd.com, but also apple in China; Only replace but not repair & quot; But it didn't go on. A large number of people use second-hand mobile phones to artificially create some faults, and then they can switch to a brand-new Apple phone. In the end, this rule seems to have become an instry. A large number of mobile phone vendors this behavior in batches, and sell it again after getting a large number of new mobile phones. The profits can be imagined
in the end, apple cancelled the policy in China, but still provided & lt; Only repair but not replace;, This is understandable
whether it is apple or JD, their policy starting point is good, both are to give consumers a better consumption experience, but in the end, a small number of people forced them to modify the rules. At present, the rule of return without reason only exists in self operated stores. If there are more and more such people, it is possible for Jingdong to cancel return without reason in the future
in the past, some unscrupulous people used the reason of a certain East self-management for seven days to return the goods, bought the goods and used the graphics card to mine, and then returned them a few days later. Later a certain East discovered this problem. You can't just return it. It's impossible to have a mine card.
for a while, for example, the miners returned the goods after digging for a few days, and some people with lower quality in the post bar returned the goods after buying the flagship card for a few days, which resulted in greater business losses and prompted the emergence of new regulations
at present, an e-commerce company generally provides no reason to return or replace the graphics card and other hardware in seven days without failure, while some other companies stipulate that after the graphics card has been used on the computer, they do not support the return of the graphics card without failure, for reference.
I haven't encountered financial chaos, but I often see some people on the Internet who are caught in the routine of financial chaos . In recent years, the financial trap has been renovated in various ways, which is more and more confusing and hidden. However, we can focus on the following key areas:
1. Investment traps . Including futures, gold, silver and other precious metals trading, spot crude oil, foreign exchange trading, post currency card trading, agricultural procts trading, tea trading, etc. For example, all kinds of leveraged foreign exchange trading platforms registered in Hong Kong, Australia, the United States, the United Kingdom and other places, the server is built outside the mainland, under the supervision of the local regulatory authorities, build a virtual trading platform, market data fraud, most of the new investors can enjoy the benefits of profit. Making use of the sliding point of the transaction, compiling and changing the data, defrauding huge profits. The domestic post currency card trading platform uses high income as t to attract investors to download the platform into the market. After additional investment, it manipulates the price, reaps customers or runs away
5. Virtual currency trap . With the slogan of blockchain technology and the guise of digital currency, we can register free mining machines, attract new customers, encourage customers to buy mining machines and increase the mining volume, so as to obtain greater profits. Finally, investors graally into the market, more and more investment, for the market