How long does the digital currency software system maintain

1.

We need to call the police. This belongs to currency fraud. We can't blindly trust the virtual investment platform that can easily earn a lot of money. Fraud gangs often use "small investment, big income" as t to let investors taste the sweetness first and then increase investment, so as to achieve the purpose of fraud

at present, the so-called "digital currency" in the market is not legal digital currency. The so-called "digital currency" launched by some institutions and enterprises and the so-called promotion of the central bank's issuance of digital currency may involve pyramid selling and fraud. It is necessary for the general public to raise their risk awareness, invest rationally and prudently, and prevent the interests from being damaged

extended information:

five ways to distinguish whether digital currency is MLM currency. virtual currency does not rely on specific monetary institutions to issue, it is based on a specific algorithm, generated through a large number of calculations, is a decentralized way of issuing. Each different terminal node is responsible for maintaining the same account book, and the maintenance process is mainly to package and encrypt the transaction information by the algorithm, while the MLM currency is mainly issued by a certain organization, and the profit is made by pulling the head

2. Transaction mode. Virtual currency is a kind of sporadic transaction formed spontaneously in the market. After the scale is formed, the third party graally establishes an exchange to complete the transaction. The MLM currency is issued by an institution and traded on its own platform

3. The virtual currency itself is an open source program, maintained in the GitHub community. The parameters and methods of the total amount limit are shown in the open source code. The open source of MLM currency is completely ing other people's open source code, and there is no use of open source code to build programs, so its essence is controlled by the website like Q currency

Whether the source code link is given. The general decentralized digital currency will give the source code link in the prominent position of the official website, so as to show the operation mechanism of the monetary system openly and transparently. What MLM currency focuses on is the transaction process of recharge purchase, not to mention its operation mechanism, and even the website does not have the link address of the source code

5. Whether the official website starts with HTTPS. In general, the addresses of the official website and trading website of decentralized digital currency begin with HTTPS. The purpose of this kind of website is to protect users' data from illegal theft. But the official website of MLM currency, trading website and other related websites do not start with HTTPS

2. You can learn about AOCO super game chain, which is very popular now. AOCO is a completely decentralized super game chain. AOCO builds an organic game ecological world of distributed smart contracts, and provides a new generation of game ecological platform based on blockchain technology, which integrates multiple types of games
the tamper proof blockchain technology can solve the data forgery of traditional centralized game services and the risk of game user data leakage at one time, which makes AOCO subvert the traditional rules of the game instry, directly connect the components of the whole game ecological chain with a decentralized structure, and realize asset docking, circulation and storage.

3. Bet in wechat group? No app? Now many news reports about wechat group fraud. It's too unsafe. When the wechat group is disbanded, who do you want to get the money from.

4. 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.

5.

Nowadays, people's lives have undergone earth shaking changes. Shopping methods and work habits are being overturned. From the cash age to the Internet age, code scanning payment is becoming more and more convenient in all aspects, and the zero cash mode of clothing, food, housing and transportation has been fully realized. It must have never been thought about before. Now it is actually a reality, but this way will also say goodbye, Did you think of it? In an era of progress, there will be constant updates and iterations

according to the relevant reports, the next digital currency will be carried out in 28 regions such as Chongqing. According to this form, it will become a reality in the next few years. After the popularity of digital money, there will also be other ways of payment, but there are always lots of people who are willing to try new things. After experiencing the comparison, WeChat Alipay's two-dimensional code payment may really have to meet again. It is more secure than that. It does not need to bind the bank card, nor does it need the help of the third party platform. It's more convenient

which way do you prefer? Welcome to discuss

6. Generally, there is only one approximate time cycle for the development of blockchain application app. For example, starting technology mainly depends on its functions and complexity. Generally, the development time is about 2-3 months. The specific time is estimated according to the customer's needs, mainly the development time. If the functions are multiple and more complex, there will be more things to develop and design, and the time will be longer. For example, in another case, the existing source code can meet the requirements, and only need to add or modify some functions will be very fast.

7. Is no one in charge of swindlers' money? Internet advertising, China, China

8. Did you buy this digital currency online? If it's a fraud, they're all showing up to protect their rights. They can only call the police