XF virtual currency
public key system: corresponds to a public key and a private key, keeps the private key in the application and publishes the public key. When Party A transmits information to Party B, it can use Party A's private key to encrypt the information, and Party B can use Party A's public key to decrypt the information, so as to ensure that the third party cannot impersonate Party A to send the information; At the same time, when Party A transmits information to Party B, it is encrypted with Party B's public key and sent to Party B, and then Party B decrypts it with his own private key, so as to ensure that the third party cannot eavesdrop on the communication between the two people. RSA is the most common public key system, but the lliptic curve digital signature algorithm is used in bitcoin protocol. What's the difference between cash and bank account? Bitcoin is an electronic currency in BTC. In this article, it is also used to refer to the whole bitcoin system. Like opening an account in a bank, the corresponding concept in bitcoin is address. Everyone can have one or more bitcoin addresses, which are used to pay and collect money. Each address is a string that starts with 1. For example, I have two bitcoin accounts, and. A bitcoin account is uniquely determined by a pair of public key and private key. To save the account, you only need to save the private key file. Unlike bank accounts, banks keep all transaction records and maintain the book balance of each account, while bitcoin's transaction records are jointly maintained by the whole P2P network through a pre agreed protocol. How much money is in my account address? Although the current account balance can be seen by bitcoin software, unlike banks, there is no place to maintain the book balance of each address. It can only calculate the account balance in real time through all historical transactions. How do I pay? When I pay from address a to address B of the other party, the payment amount is e. at this time, both parties will announce the transaction information to each network node, telling address a to pay to address B, and the payment amount is e. In order to prevent the third party from forging the transaction information, the transaction information will be encrypted with the private key of address A. at this time, the network node receiving the transaction information can use the public key of address a to verify that the transaction information is indeed sent by address a. Of course, trading software will help us do these things, we just need to input the relevant parameters in the software. What will the network node do after receiving the transaction information? This is the most important part of the bitcoin system, which needs to be elaborated. For the sake of simplicity, only bitcoin protocol has been implemented. In the current version, each network node will save all transaction information synchronously. There are two kinds of transaction information in history, one is & quot; Verified & quot; The transaction information, that is, the verified transaction information, is stored in a series of "blocks". Each & quot; block" Is the previous & quot; bock" The ID of each block is the hash code of the hash code of the block and the new transaction information (see an actual block). The other category refers to those who also & quot; Unverified & quot; The transaction information just paid above belongs to this category. When a network node receives new unverified transaction information (possibly more than one), it can calculate the book balance of each address at that time because the node keeps all the transaction information in history, so it can calculate whether the transaction information is valid, that is, whether there is enough balance in the payment account. After eliminating the invalid transaction information, it first takes out the last & quot; block" Then, the unverified transaction information is combined with the ID, and a verification code is added to form a new "block". It needs a lot of calculation to build a new block, because it needs to calculate the verification code, so that the above combination becomes a block, that is, the first several bits of the hash code of the block are 1. At present, the first 13 bits need to be 1 (generally, the specific method is uncertain), which means that if the block is generated by enumeration method, the average number of enumerations is 16 ^ 13. Using CPU resources to generate a block is called "gold mining", because the proction of the block will get a certain reward, and the reward information has been included in the block. When a network node generates a new block, it will broadcast to other network nodes. However, this network block may not be accepted by the network, because it is possible that other network nodes have proced the block earlier. Only the earliest block or the block with the largest number of subsequent blocks is valid, and the remaining blocks are no longer used as the initial blocks of the next block. How does the other party confirm that the payment is successful? When the payment information is distributed to the network node, the network node begins to calculate whether the transaction is valid (that is, whether the account balance is enough to pay), and attempts to generate blocks containing the transaction information. When six blocks (one direct block and five subsequent blocks) contain the transaction information, the transaction information is considered "verified", so that the transaction is formally confirmed, and the other party can confirm the successful payment. A possible problem is that I will pay the balance of address a to address B, and at the same time pay to address C. If I only verify that the single comparison transaction is valid. At this point, my way of cheating is to generate six blocks including B to B and six blocks including C to C before the truth is revealed. Because I need a very long CPU time to generate a block, compared with the whole network, the probability of my cheating success is very small. What is the motivation of network nodes to proce blocks? As can be seen from the above description, in order to make the transaction information effective, the network node needs to generate 1 and 5 subsequent blocks to contain the transaction information, and such block generation is very CPU intensive. How to let other network nodes help to proce blocks as soon as possible? The answer is very simple. The agreement stipulates that BTC will be rewarded for the address where the block is proced, as well as the Commission promised by both parties. At present, the reward for procing a block is 50btc, which will be halved every four years in the future. For example, the reward will be 25btc from 2013 to 2016. Is the transaction anonymous? Yes, and No. All bitcoin transactions are visible. We can check all transaction records of each account, such as mine. But what's different from the banking monetary system is that everyone's account itself is anonymous, and everyone can open many accounts. In general, anonymity is not as good as it claims. But bitcoin has another advantage in doing black market trading: it can't be frozen. Even if the police trace a bitcoin address, there is nothing they can do unless they trace the computer used by the exchange based on the Internet address. How to ensure that bitcoin does not depreciate? Generally speaking, in the case of equivalent trading activities, the value of money is inversely proportional to the amount of money issued. Unlike the traditional money market, the central bank can determine the amount of money issued. Bitcoin does not have a central issuing institution. Only by procing blocks can we get a certain amount of BTC currency. Therefore, bitcoin's new amount of money depends on: 1. The speed of procing blocks: bitcoin's agreement stipulates that the difficulty of procing blocks is fixed at an average of 2016 every two weeks, about 10 minutes. Moore's law of doubling CPU speed every 18 months will not speed up the proction of block. 2. The number of rewards for block proction: at present, 50 BTC is awarded for each block proced, which is halved every four years. In 2013, 25 BTC is awarded, and in 2017, 12.5 BTC is awarded. Considering the above two factors, bitcoin's currency issuing speed is not controlled by any single node in the network. Its protocol makes the currency stock known in advance, and the maximum stock is only 21 million BTC
Hunan Shoushu Information Technology Co., Ltd. is a limited liability company (solely owned by natural person) registered on February 23, 2016, with its registered address at room 601a19, venture building, Hunan University Science Park Co., Ltd., 186 Guyuan Road, Changsha high tech Development Zone
the unified social credit code / registration number of Hunan Shoushu Information Technology Co., Ltd. is 914300100ma4l2xf26a, and the enterprise legal person is Yang Jinghua
the business scope of Hunan Shoushu Information Technology Co., Ltd. is: information system integration services; Information technology consulting service; Software development system integration service; Software technology transfer; Software technology service; Location based information system integration; Location based information system construction; Sales of computer software, computer hardware, monitoring equipment, building materials, electronic procts, office furniture, office supplies, environmental protection materials, environmental protection equipment and chemical procts; Wholesale of communication, radio and television equipment; Environmental protection technology development services Projects that need to be approved according to law can only carry out business activities with the approval of relevant departments. Without approval, they are not allowed to engage in P2P online lending, equity crowdfunding, Internet insurance, asset management, cross-border finance, third-party payment, virtual currency trading, ICO, illegal foreign exchange and other Internet Financial services
check more information of Hunan Shoushu Information Technology Co., Ltd. through aiqicha
Wenzhou Tianyi Network Technology Co., Ltd. is a limited liability company (solely owned by natural person) registered on December 4, 2017. Its registered address is located at room 01, commercial network, No. 2, Hongyuan International Garden, No. 666, Feihong South Road, Hongqiao Town, Yueqing City, Zhejiang Province
the unified social credit code / registration number of Wenzhou Tianyi Network Technology Co., Ltd. is 91330382ma299xf466, and the enterprise legal person is Yu Rujie
The business scope of Wenzhou Tianyi Network Technology Co., Ltd. is: technology development, technology consulting, technology service and technology transfer in the computer field; Use the Internet to operate game procts (including online game virtual currency issuance); Organize and plan cultural exchange activities; Exhibition services; Game software design, proction; Animation proction; Information system integration service; Monitoring system development; Data processing and storage services; Sales of electronic procts Projects that need to be approved according to law can be operated only after being approved by relevant departments)check more information of Wenzhou Tianyi Network Technology Co., Ltd. through aiqicha
Hunan Xinlida Technology Co., Ltd. is a limited liability company (invested or controlled by natural person) registered on December 13, 2018, with its registered address at t4-13005, Yucheng Chaoyang Square, Chaoyang Street, Furong district, Changsha City, Hunan Province
the unified social credit code / registration number of Hunan Xinlida Technology Co., Ltd. is 91430102ma4q6663xf, and Tan Wenda is an enterprise legal person. At present, the enterprise is in business
the business scope of Hunan Xinlida Technology Co., Ltd. is: research and development of new decorative materials, environmental protection materials and electronic procts; Sales of environmental protection materials; Floor engineering design and construction; Stainless steel kitchen equipment and its procts proction; Stainless steel kitchen equipment and its procts installation; Wholesale of mechanical equipment, hardware procts and electronic procts, office supplies, furniture and building materials; Mechanical and electrical equipment repair and maintenance services; Professional contract of mechanical and electrical equipment installation engineering; Information technology consulting service; Data and information processing and storage; Data collection and mining services; Economic and business consulting services; Enterprise financial consulting services (excluding financial, securities and futures consulting services); Resolving the financial crisis of enterprises; In the second type of value-added telecommunication services, call center services and information services (Internet information services only); Agency loan service; Mortgage agency services; Real estate information consultation; Enterprise management consulting service; Enterprise management service; Entrusted by the bank to provide telephone call service to credit overe account and credit card overdraft account; The development and construction of e-commerce platform; Enterprise management strategy planning; Accept the bank's entrustment to undertake outsourcing services (excluding collection services); Science and technology intermediary service; Science and technology information consulting service; High tech entrepreneurship services; Technical support services for science and technology enterprises; Application software development; Information system integration service Projects that need to be approved according to law can only carry out business activities with the approval of relevant departments. Without approval, they are not allowed to engage in P2P online lending, equity crowdfunding, Internet insurance, asset management, cross-border finance, third-party payment, virtual currency trading, ICO, illegal foreign exchange and other Internet Financial services
check more information of Hunan Xinlida Technology Co., Ltd. through aiqicha
Changsha Jinbiao Electrical Technology Co., Ltd. is a limited liability company (invested or controlled by a natural person) registered on August 2, 2013. Its registered address is located at No. 1806, building 1, phase III and IV, Wanke Jinyu Huafu, No. 539, Section II, Wanjiali Middle Road, Yuhua District, Changsha City
the unified social credit code / registration number of Changsha Jinbiao Electrical Technology Co., Ltd. is 9143011107497641xf, and the corporate legal person is Yu Hailin. At present, the company is in business
the business scope of Changsha Jinbiao Electrical Technology Co., Ltd. is: electrical equipment technology consulting; Installation, debugging and maintenance of household appliances; Retail of household appliances; Trade agency; Trade advisory services; The development and construction of e-commerce platform; Kitchen electrical equipment sales; Brand promotion and marketing; Import and export of all kinds of commodities and technologies, except those restricted or prohibited by the state; Import and export of goods or technologies (except those prohibited by the state or involving administrative examination and approval) Without approval, it is not allowed to engage in P2P online lending, equity crowdfunding, Internet insurance, asset management and cross-border Internet financial services such as finance, third-party payment, virtual currency trading, ICO, illegal foreign exchange, etc. (projects that need to be approved according to law can only be operated with the approval of relevant departments)
check more information of Changsha Jinbiao Electrical Technology Co., Ltd
1. Positioning, single-minded and simple
remember not to be greedy when making a forum, which will lead to all kinds of confusion in the end. It is very important to define the nature of the forum. Whether it is a literary forum, an entertainment forum or a comprehensive forum, we should put the role right from the beginning. For example, to make a literature forum, we should give priority to Literature and add a few places for entertainment, so that we can relax, distinguish the primary and secondary, and never make a fuss. Specificity does not mean monotony, it's just a clear theme. If a forum wants to be made of both music and literature, it will be nothing but nondescript in the end. Simple style can't be ignored, don't think the more fancy the more attractive, in fact, simple, clean and fresh forum is more attractive. Don't add a lot of sections wantonly because there is no limit on the number of sections. The result of doing so is that you don't want to go to any of them
2. Layout writing
layout writing should be hierarchical and organized. First, divide a forum into several large areas, and then divide the large area into small sections. Try not to add more sections in the section. It looks very messy, and it will make the posting users at a loss. Pay attention to the placing order of large areas, and be sure to put the forum with its own characteristics on the top; Then there is the forum attribute area, such as literature forum, where the original literature area is placed; Next is the irrigation chat area, such a section is usually popular, placed in the middle can inhibit the excessive flooding of water paste; The last is the station management area. In each area, the layout order of each layout has certain rules, usually the most representative and popular layout is placed in the first. In a word, the first impression of a good forum is that it is "in front of your eyes", not a fog
3. Have your own style
this is the most important point. There are more than ten million forums on the Internet. It's meaningless to other people's forum. Before making a forum, you should be prepared to create a leaf that is not in the world. You need to bring out your own color, at least the color of the home page can't give people the feeling of deja vu. Color should be pasted with your forum theme, or soft, or alternative, or warm, or intense. It must be pointed out that to advocate one's own style is not to advocate heterodox everywhere. Just imagine, you have to use large Chinese amber font to write forum, or the smallest small black font, which can only make your members dizzy before going to the ophthalmology department. If you have technical support, you'd better do one or two things that other forums don't have
4. The formulation of forum rules
we must work out a set of feasible development plan and management rules before the forum is released. As the saying goes, there is no square without rules. If the pace is disordered, how can we go on? Get used to setting goals for yourself. Whether it's a hobby forum or a business forum, you want to do well and let more people agree with you. Therefore, you should always know what kind of goals you want to achieve, so that you can have the motivation to move forward. In addition, the posting rules of the forum should be formulated by the administrator or Banzhu himself, which will be improved in the future development. First of all, there should be a general outline, and each section should have a post to know. What are the requirements and reward and punishment system of the posts in the section should be clear, and the top should be fixed, so that the newcomers who come in succession can be clear at a glance
5. Perfect service
try to enrich the forum without affecting the speed and technical support. There can be corresponding community services, such as banks, hospitals, schools, courts, prisons, casinos, etc; Can have some online games, such as horse racing, Gobang, find different, etc; You can pay regular salary and bonus to Banzhu, of course, they are all virtual currency; Some regular elections can be held to select the most popular members of the forum; Can be equipped with voice, video chat room, plug-in message board, cinema and so on. Of course, the trade-off, with a part of the resources to provide perfect services, it is necessary to save resources in other places, you can turn off the upload file function, turn off random advertising and some unnecessary information
after the forum is released, how to operate and manage it is also a very important issue. The following is a brief talk from several aspects:
1. Popularity
this is an important obstacle to the failure of many forums. No matter how well the forum is done, no one will come. Publicity is very important, but here we should pay attention to the methods of publicity. Don't go to another forum to publicize your own forum, and post your own forum address everywhere. In that case, the result is likely to be counterproctive, that is, you will be reprimanded, or you will be blackmailed. Because go to other forum propaganda, will cause threat to the other party, think you are to "dig people", the end of the skid trading can be imagined. Can change a way, exchange friendship connection, or implicit euphemistic self promotion. Of course, the best publicity is to log on to major websites. Once your forum can be searched on Sohu and Sina, your popularity will naturally come out from all directions. In addition, through online interpersonal relationships, QQ group and pull friends of friends of friends, these methods can improve popularity
2, fresh
a forum to achieve long-term youth, we should constantly give ourselves oxygen, renovation. It is difficult to survive in a static forum. The content is very important. The number of new posts every day does not have to reach any quantity, but the quality must be achieved, so that members have something to see. Forum is no more than chat room. No one is online for one or two days. Maybe it will be full on the third day; However, if no one comes to the forum for one or two days, it is unlikely that there will be another one. There are only forums where no members can be found. There are no forums where no members can be found. Similarly, only when members abandon the forum, not when the forum abandons members. Don't be abandoned because you are tired
3. Banzhu
Banzhu is the pillar of a forum. What they have is not the right, but the responsibility. The so-called meritocracy, to have a unique insight, select those who have management ability to do Banzhu, refuse those who arbitrarily edit and delete other people's posts, brag before applying for Banzhu. It's easy to make a few mistakes here: first, leave the position of bamboos to the netizens who have a good relationship with them. You should know that "the virtuous do not avoid relatives" is not used here; Second, once he is appointed, he will do it to the end. No matter how he behaves in the future, he always feels that it is not helpful to pull people down from his position; Third, it seems reasonable to be used to letting writers do literary Banzhu, but there is a big mistake in it. Usually, there are two common faults in writing Banzhu: one is that their articles are only published in their own sections, no matter whether the content is appropriate or not; the other is that people who love to write don't like to read them. They seldom carefully review other people's articles in their own sections, and often muddle along
4. Management
don't think that you can let go of the great achievements. The management in the operation of the forum is much more difficult than the initial stage, and the management of the front desk is much more complex than the maintenance of the back office. The administrator is a helmsman. He controls the development direction of the forum, controls the degree, and always keeps it on the right route. When it's not hot, let it burn. If it's too hot, you should know how to cool down in time. The development of a forum always goes through several stages: depression and order - fire and disorder - fire and order. To reach the highest level is not a matter of one day. We should constantly sum up experience, formulate a plan suitable for the development of our own forum, and follow the rules to survive, so as to survive better
in a word, you can do well in the forum as long as you work hard.