Ethereum into the pit

1. A number of victims of virtual currency fraud cases distributed all over the country said that they were refused to file a case when reporting to the local police because virtual currency could not be valued and could not reach the starting loss amount of theft or fraud. This situation may be affected by the announcement on preventing the financing risk of token issuance issued by seven ministries and commissions on September 4, 2017 (hereinafter referred to as the announcement). Generally speaking, fraud and other crimes of infringing property rights have the starting point of "large amount" According to the interpretation of the Supreme People's Court on Several Issues concerning the specific application of law in the trial of fraud cases, indivials who defraud public or private property of more than 2000 yuan belong to "large amount". However, the announcement clearly pointed out that "any so-called token financing trading platform shall not provide pricing, information intermediary and other services for token or virtual currency." Therefore, it is difficult for the public security organs to recognize the price of virtual currency displayed on the trading platform, and to estimate the value of virtual currency when the victims encounter virtual currency fraud, so as to determine whether the case meets the filing standard.

2. 99% of them are deceiving. It's deceiving to say how much it will appreciate. It's just a technology, its application is valuable.

3. Depending on your basic level, if you have a certain technical foundation for development, it is relatively easy to learn
"chainman College" offers short weekend technical training courses for colleges with a certain programming foundation. You can investigate them and ask about your situation.

4. Beware of pyramid schemes. Many virtual currencies are pyramid schemes. It's better to know whether the virtual currency you want to invest is pyramid schemes

5. Now it's March 2021. I'll answer you. What are bitcoin and Ethereum? These two are the virtual money that grabs money and the new things that drive the nationwide mining tide. Bitcoin is now 1 = 350000 RMB. In this way, Ethereum is 1 = 11000 RMB, and its value is rising. I regret that I just heard about bitcoin when I was studying in 2008, but it's only 20 yuan, I didn't buy a 200 yuan plug-in. Now it's worth millions of money with me.

6. The issue of bitcoin is determined by the block height, that is, the distance from the No. 0 block of Genesis. Now when the number is reached, the total amount of bitcoin should be limited. After this village, there will be no store. If the miners dig a block but don't receive the reward of the block, the bitcoin will be destroyed forever

coinbase transaction is a special transaction that generates bitcoin "out of thin air". Only miners can write this kind of transaction, and the number of generated bitcoin is limited by rules (new currency reced by half for every 210000 blocks + transaction fee for this block)

however, the rules do not stipulate that the miner must take away all the rewards that can be taken, and can choose not to take them

therefore, a mine pool connected with the RSK side chain has made a bug before, forgetting to take away the reward and occupying a pit in a block for nothing, which is equivalent to destroying the corresponding amount of bitcoin, making the total amount of bitcoin decrease a little bit permanently

in addition, to spend a bitcoin, you only need to specify the transaction ID and output serial number

as like as two peas in multiple blocks repeatedly write identical coinbase transactions, the transaction ID is also repeated.

therefore, this kind of situation also occupies the pit of a block in vain, and permanently destroys the corresponding amount of bitcoin

it seems to me that this is still a security vulnerability, so the new version of bitcoin software later banned the writing of repeated coinbase transactions. But until now, there has been no ban on miners not getting their e rewards

generally speaking, a coin is controlled by a private key. If a coin is transferred to an address where no one knows the private key, it will be destroyed

if the owner does a good job in security, and the private key is not disclosed and cannot be guessed, but he accidentally loses the private key, it is equivalent to destroying all the coins he owns

there are only some special circumstances that require intentional destruction of coins

one is irreversibly converted into another kind of currency, such as the contract currency XCP attached to bitcoin and wormhole cash WHC attached to BCH

the second is to save certificates and data on the chain, such as the time stamp: panbiao.com/2013/08 /

and the crowd funding of the original Ethereum founding team: zhuanlan.hu.com/p/29

the private key is essentially a big number. Whoever knows this number can control the currency on the corresponding address. So the private key must be generated with reliable random number, otherwise it may be guessed and stolen

compared with the token, the address is the hash of the public key. There is no way to judge whether an address has a corresponding public key and private key (even if the public key is known, the corresponding private key cannot be known). Therefore, even if it is explicitly the address of "burned" token, the system does not prohibit the transfer in

strictly speaking, what locks the currency is a small program (script). This program takes the input as the public key and digital signature. First, check whether the public key hash is consistent, and then check whether the digital signature is valid. If it is valid, it will be verified and transfer is allowed; Otherwise, it will be judged that the transaction is illegal and refuse to package into the chain

it is the whole node software that explains and executes this program. It can be said that the software code of the whole node specifically defines a coin

however, the current situation is very embarrassing. Most miners do not run the whole node, only a few mines are running. The vast majority of users do not run the whole node, even if they run the whole node, they can only perform verification, no computing power, no block.

7.

Let me tell you the answer first: No

or don't invest all of bitcoin. Let me give you a brief analysis

first of all, if your principal is a windfall, I suggest you allin invest in bitcoin, which may be several times more when you take it out at the end of this year. There will be another windfall

if your principal is a year-end bonus, you can consider investing half in blockchain and bitcoin

if your principal is your hard-earned money, you must be cautious in your investment, so first of all, it is not recommended that you invest in blockchain

in fact, your question tells me two basic facts: 1. You are Xiao of blockchain / currency circle; 2. You have a little deposit and want to manage money, or you need to make some money

so from my point of view, I don't recommend you to buy bitcoin or make any other blockchain investment, because there is a saying that a person can't make money beyond his cognition, and the blockchain world is beyond your cognition for you, and the coin circle is basically an extension or part of the financial system. And the financial system is the most cruel and ruthless world. When you want to make money, you should also think that there are hundreds of thousands of people, millions of people who have the same ideas as you, so as to drive them into this bloody and merciless market. So you ask yourself, can you make sure you make money

first pour a basin of cold water on you, and then answer your questions seriously. Let's take a look at the historical trend of bitcoin

I feel optimistic that the recovery may come slowly, the Federal Reserve's move may be the beginning of financial release, and the capital market may recover slowly. As a small part of the financial market, the blockchain world may also recover

from the perspective of investment, bitcoin in the blockchain world is not only the genesis currency, but also the mainstream currency that accounts for the vast majority of the total market value at present. Therefore, if you really want to invest in the blockchain world, bitcoin is the best choice

however, please note that from the perspective of professional investment advice, risks should always be shared. Exclusive bitcoin will be taken off by a currency, and it will also fall miserably. So please consider holding other mainstream currencies, such as BoChang coin, which is known as "the last good heart of the blockchain", which is also the most powerful counter trend growth currency in the bear market of the currency circle. For a long time, when the mother of other currencies, including bitcoin, didn't know each other, BoChang was the only currency that was growing slightly, which was a miracle

another example is Ethereum. Although Ethereum's hard fork has been delayed for a long time, the arrival of Constantinople's hard fork upgrade will make Ethereum the most eye-catching star in a short time. At this time, the investment can be regarded as low-level market entry, and you can make a profit by waiting for high-level investment

finally, back to my answer, if you don't even know wave field, bitcoin, Constantinople hard fork and other words, how can you determine whether you can make a sum of money in the world of currency. So this in itself is a very high risk thing

a strange capital market will swallow up all your savings. Although some people get rich overnight, they are a few people after all. If you are sure to invest in the blockchain world, bitcoin can be invested. However, from the perspective of risk sharing, please buy some other mainstream currencies to minimize the risk. Finally, I wish you a happy investment and a big fortune in the year of the pig. Please be cautious in your investment

is to read more about the various currencies or project's white paper. I pay attention to my WeChat official account: "Nanjing block chain" can get thousands of white papers free of charge, so that you will have a better understanding of the chain world. p>

8.

There are no specific requirements for the driver's license examination. You can go for a physical examination according to the arrangement, or you can go to a medical institution at or above the county level or regimental level for a physical examination

according to Article 19 of the regulations on application and use of motor vehicle driver's license, when applying for a motor vehicle driver's license for the first time, the applicant shall fill in the application form and submit the following certificates:

(1) the identity certificate of the applicant

(2) certificates of physical conditions issued by medical institutions at or above the county level or regiment level. If it is a small automatic passenger car for the disabled, the certificate of physical condition issued by a special medical institution designated by the Provincial Department of health shall be submitted

extended data:

Article 24 of the regulations on the application and use of motor vehicle driver's license, the person who applies for a motor vehicle driver's license meets the driving license conditions required by the regulations and has one of the following circumstances, (1) the original motor vehicle driver's license is cancelled because it has not been renewed e to the expiration of its validity period; and

(2) the original motor vehicle driver's license is cancelled e to the failure to submit the physical condition certificate

(3) the original motor vehicle driver's license is cancelled by the applicant himself

(4) the original motor vehicle driver's license is cancelled e to the temporary non-compliance of physical conditions

(5) the original motor vehicle driver's license is cancelled for other reasons, except that the motor vehicle driver's license is revoked or revoked

(6) holding a motor vehicle driver's license of the armed police force or the military beyond the validity period

(7) holding an overseas motor vehicle driver's license beyond the validity period

in case of any of the situations specified in items 6 and 7 of the preceding paragraph, a motor vehicle driver's license exceeding the validity period shall also be submitted

9.

I believe there is a fraud in issuing digital currency, but there is a fraud in mining. Unless you buy a "nonexistent" mining machine or computing power, the probability of being cheated is almost zero. Next, let me talk about UTC's past and present lives

So, it's hard to say whether UTC is a fraud, but this model is indeed an innovation in the currency circle. After all, digital currency is getting more and more attention, and it may not become "currency", but it may become "alternative investment goods". Personally, I'm optimistic about this mining model

moreover, as far as I know, the team behind UTC, as well as the financial and technical support are quite reliable. If it is really a scam, the institutions that invest in UTC will not make such a big battle to cheat people

10.

It can not be said to be a fraud, but there are certain risks, because digital gold currency is a form of physical currency, and its deposits are measured in gold rather than legal currency. Therefore, the purchasing power fluctuation of digital gold currency is related to the gold price. If the price of gold goes up, it becomes more valuable. If the price of gold goes down, it loses value

since there is no specific financial regulation to regulate digital gold money suppliers, they operate in a self-regulation way. Digital gold money suppliers are not banks, so banking regulations are not applicable

extended data

to explore the connotation of digital currency, we must clarify some concepts of model lake. For example, is it legal digital currency dominated by the central bank or illegal private fixed digital currency; Encryption of digital currency or electronic currency; Is it "selling dog meat with sheep's head"; "Bad money"

new technology does make the conceptual boundary of money more blurred. Theoretically speaking, the new monetary economics points out the possibility of the disappearance of money, that is, legal paper money is no longer the only medium of transaction, and is eventually replaced by financial assets issued by the private sector that generate monetary income

in reality, although the status of fiat money is still unshakable, there have been various local scenes of private money in history, such as the universal warra system in Germany in the 1920s. Now the digital currency with the characteristics of decentralization makes the challenge of private currency increasingly prominent< br />