Official edition of safe money mining

3. Bitcoin is a kind of "electronic currency", which is composed of a series of complex codes generated by computer. New bitcoin is manufactured through preset programs. With the increase of the total amount of bitcoin, the speed of new coin manufacturing slows down. Until 2140, the total amount of bitcoin reached the upper limit of 21 million, and the total amount of bitcoin g up has exceeded 12 million. In essence, the so-called "mining" is to use computers to solve a complex mathematical problem to ensure the consistency of bitcoin network distributed accounting system. Bitcoin network will automatically adjust the difficulty of mathematical problems, so that the whole network will get a qualified answer about every 10 minutes. Then bitcoin network will generate a certain amount of bitcoin as a reward to reward the person who gets the answer
the people's Bank of China, the Ministry of instry and information technology, China Banking Regulatory Commission, China Securities Regulatory Commission and China Insurance Regulatory Commission jointly issued the notice on the prevention of bitcoin risk recently, which defines the nature of bitcoin and holds that bitcoin is not issued by monetary authorities, It is not a real currency because it does not have the monetary attributes of legal compensation and compulsion. So don't do it now

4.

It's not against the law

The laws and administrative regulations in China do not prohibit the proction, holding and legal circulation of bitcoin, nor do they prohibit the sale of bitcoin mining machines

2. The investment and transaction of "virtual currency" represented by bitcoin are on the rise. For this kind of virtual goods generated in the Internet environment after the development of Internet technology, there are policy and commercial risks in related transactions. However, under the premise of not violating the mandatory provisions of laws and administrative regulations, the contract signed by the parties is a valid contract

3. Bitcoin is generated by "miner" and "mining", and "miner" can be assumed by anyone in any place in the world. "Mining" is a process in which "miner" provides certain computer computing power according to the open source software provided by the designer, and obtains the special solution of the equation through complex mathematical operations, The miner who gets the special solution gets a certain amount of bitcoin reward

Because bitcoin is based on workload proof, it is related to computing power. To have computing power, we need to consume power, so its power consumption is very large. It is precisely because of such a large power consumption that the safe and stable operation of bitcoin system can be guaranteed

extended information:

according to the data of btc.com website, up to now, the computing power of the whole bitcoin network is about 51.65 eh / s, which is equivalent to 1.84 million bitcoin S15 (28T computing power, 1596w power) mining machines in operation, and the daily power consumption is about 69.92 million kwh. Divided by the current proction of 1800 bitcoins per day, excluding other costs, each bitcoin will consume 38800 kwh of electricity. "

from this point of view, although the current price of bitcoin is expensive, the cryptocurrency market website coinmarketcap.com shows that the current unit price is about $7900, but the cost of mining a bitcoin is not low at all

5. It's not against the law<
in the notice of the people's Bank of China
Ministry of instry and information technology
China Banking Regulatory Commission
China Securities Regulatory Commission
China Insurance Regulatory Commission on risk prevention of bitcoin (Yin Fa [2013] No. 289), in addition to clarifying the attributes of bitcoin as a network virtual commodity, the notice mainly specifies the following contents:
first, the, It is clearly required that all financial institutions and Payment institutions at this stage shall not carry out business related to bitcoin, price procts or services with bitcoin, buy or sell bitcoin as central counterparties, underwrite insurance business related to bitcoin or include bitcoin into the scope of insurance liability
Second, Internet sites that explicitly require bitcoin registration, trading and other services should be filed with the telecommunications regulatory authorities, and earnestly perform the anti money laundering obligations, identify users' identities, and report suspicious transactions
thirdly, relevant departments, financial institutions and Payment institutions are required to correctly use the concept of money in their daily work, pay attention to strengthening the ecation of the public's knowledge of money, and incorporate the concepts of correct understanding of money, correct treatment of virtual goods and virtual money, rational investment, reasonable control of investment risks, and maintenance of their own property security into the content of financial knowledge popularization activities, To guide the public to establish a correct concept of money and investment
extended information:
the notice requires that at this stage, all financial institutions and Payment institutions shall not price procts or services with bitcoin, buy or sell bitcoin as a central counterparties, underwrite insurance business related to bitcoin or include bitcoin into the scope of insurance liability, and shall not directly or indirectly provide customers with other services related to bitcoin
including bitcoin registration, trading, clearing, settlement and other services for customers; Accept bitcoin or use bitcoin as a payment and settlement tool; Carry out bitcoin and RMB and foreign currency exchange services; Carry out bitcoin storage, custody, mortgage and other services; Issuing financial procts related to bitcoin; Take bitcoin as the investment target of trust, fund, etc
according to the notice, bitcoin Internet sites, as the main trading platform of bitcoin, should be put on record in the telecommunications regulatory agency in accordance with the provisions of the Telecommunications Regulations of the people's Republic of China and the measures for the administration of Internet information services
at the same time, in view of bitcoin's high risk of money laundering and being used by criminals, the circular requires relevant institutions to earnestly perform legal anti money laundering obligations such as customer identification and suspicious transaction report in accordance with the requirements of anti money laundering law of the people's Republic of China, so as to effectively guard against bitcoin related money laundering risks
source of reference materials:
five ministries and commissions including the people's Bank of China and the government of China issued the notice on preventing bitcoin risk
five ministries and commissions including the China securities regulatory network and the central bank issued the notice on preventing bitcoin risk

6.

There is a flat head screw at the bottom of carburetor, which can be unscrewed

carburetor is a key part of engine, small changes may affect vehicle performance. Therefore, in the process of carburetor disassembly, appropriate tools should be used, and the force should be moderate, so as to prevent the deformation of parts. The disassembled parts should be placed in order in order to prevent missing or wrong assembly

in the process of cleaning the carburetor, if more deposits are found in the float chamber of the carburetor, it is often caused by the failure of the gasoline filter. At this time, the gasoline filter should be checked. If the failure is confirmed, the gasoline filter should be cleaned or replaced

extended information:

precautions:

1. Carburetor is a key part of engine, small changes may affect the vehicle performance. Therefore, in the process of carburetor disassembly, appropriate tools should be used, and the force should be moderate, so as to prevent parts from deformation. The disassembled parts should be placed in order in order to prevent missing or wrong assembly

2. The carburetor should be cleaned in a clean place, the outer surface of the carburetor should be cleaned, and the internal parts can be cleaned with special cleaning agent for carburetor or instrial gasoline. In addition to impurities, pay attention to clean the gasoline gum on the surface of parts

3. Clean the cleaned parts with compressed air, and do not wipe them with cloth or paper that may cause burr to prevent re pollution. It is forbidden to poke the blocked small hole with steel wire and other hard objects to prevent the change of carburetor performance caused by changing the aperture. Gasoline or compressed air should be used to wash out

7. Hunhebao or Xinhua News Agency

8.

Taxpayers confirm that the tax control equipment they use is the upgraded version of the VAT invoice system, and then build or entrust a third party to build the e-invoice service platform, bring the original and of the operator's identity certificate, and the stamp of the special invoice seal,

fill in the verification form for taxpayers to receive invoices (in plicate), To apply for the approval of electronic invoice in the Tax Service Department of the competent tax authority, the processing process and required data are consistent with the approval of ordinary VAT invoice

the e-invoice service platform is mainly built by taxpayers themselves, and can also be developed and provided by a third party. The State Administration of Taxation has formulated the technical standards and management system of the electronic invoice service platform, and issued the Notice No. 53 of the State Administration of Taxation in 2015, which specifies the data interface specification of the electronic invoice system

taxpayers use the new system to issue e-invoice, and the invoice information is uploaded to the tax authorities by the invoice system, and then transmitted to the docking e-invoice service platform. According to the existing mechanism and requirements of e-invoice, the platform generates e-invoice with taxpayer's signature and its image file, which is fed back to the billing party. Among them, there are tax control signature and electronic signature on the electronic invoice, so there is no need to stamp the special invoice seal

extended information:

shortcomings of e-invoice

the popularization and implementation of e-invoice will bring a serious test to the price advantage that the online shopping market has been relying on. Many businesses will impose the cost of e-invoice on consumers, and eventually lead to higher proct prices

some regular e-commerce companies can issue paper invoices, such as Jingdong Mall, dangdang.com, tmall mall, etc. Although the prices of these procts are a little higher than those of Taobao platform, they give consumers a sense of standardization and more peace of mind

Taobao platform is based on C2C (person to person) mode, because most C2C businesses are not registered in the instrial and commercial department, so there are obstacles in issuing invoices. But also because of this, C2C way than B2C way less a large part of the tax cost, the price of the proct is naturally cheaper

after the popularization of e-invoice, ordinary C2C businesses will no longer be "spared", which will bring a blow to the advantage of low price and beautiful online shopping. This also makes people hesitant to support the popularization of electronic invoice, so it took several months for businesses to implement it

although the state has made it clear that the legal effect and basic use of electronic invoice are the same as that of paper invoice, and electronic invoice can also be reimbursed, the reporter of Beiqing daily found in the interview that many enterprise financial personnel feel headache about electronic invoice

"because consumers print by themselves, there will be differences in paper and printing effect, which is equivalent to canceling the physical anti-counterfeiting performance of the original invoice, and the responsibility of identifying the authenticity is all transferred to the financial personnel, which is really too much responsibility!"

some financial personnel of enterprises say that they usually advise employees to choose the businesses that issue ordinary invoices as much as possible for consumption, but more and more businesses only provide electronic invoices, which often lead to differences between employees and financial personnel

In addition, the feature that electronic invoice can be printed repeatedly also makes it a problem for financial personnel to prevent plicate reimbursement. The financial personnel as like as two peas have done the tests. The same electronic invoice is almost identical to the original invoice after plication. If it is used to repeat reimbursement, the financial personnel simply can not identify. p>

in this regard, the only way most financial personnel can take is to write down the number of each electronic invoice that has been reimbursed, and check whether this invoice has been reimbursed every time, which undoubtedly increases the work pressure