POC and bitcoin

1. virtual currency refers to non real currency. Well known virtual currencies, such as online currency of Internet company, q-coin of Tencent company, q-point and voucher of Shanda company, micro currency launched by Sina (used for micro games, Sina reading, etc.), chivalrous Yuanbao (used for chivalrous road game), silver grain (used for bixue Qingtian game), and popular digital currencies in 2013 include bitcoin, Laite coin, infinite coin, quark coin, zeta coin, etc Barbecue coins, pennies (Internet), invisible gold bars, red coins, prime coins. At present, hundreds of digital currencies are issued all over the world. Popular in the circle & quot; The legend of "bitcoin, Wright silver, infinite copper, pennies aluminum"
according to the notice and announcement issued by the people's Bank of China and other departments, virtual currency is not issued by the monetary authority, does not have legal compensation and mandatory monetary attributes, is not a real currency, does not have the same legal status as currency, cannot and should not be used as currency in the market, and citizens' investment and transaction of virtual currency are not protected by law
response time: December 10, 2020. Please refer to the official website of Ping An Bank for the latest business changes
[Ping An Bank I know] want to know more? Come and see "Ping An Bank I know" ~
https://b.pingan.com.cn/paim/iknow/index.html

2. Appdownload cactus POC online 6 exchanges share trading depth I communication · personal column 2019 / 05 / 09 14:33 4175 attention as of May 2019, cactus POC online 6 exchanges in total, open POC / eth trading pairs at the same time, at the same time log in non small ranking list, the exchanges will share POC trading depth, matching, online that has the whole platform market, K line and other data. As the ecological token of digital asset trading platform, pngpoc has great value support, including investor protection fund, project online voting, transaction fee payment, incentive mechanism, platform service purchase and business ecological alliance. The six exchanges of POC online are: chainease ce.cool, zt.com, fubt, Lein exchange, bione and Yuanjun exchange. In the future, more exchanges will be online to share trading depth. At present, the daily trading volume of each exchange has reached 380 million pieces / day. 190509140844702765652. PNG trading depth "is also known as" market depth ", which refers to the number of orders whose price can be driven to a certain extent by a token. It represents whether the platform can guarantee the price stability when bearing large transactions, and reflects the liquidity and maturity of the market. POC has settled in six exchange platforms, and shares depth and liquidity, which will achieve a win-win situation. POC / eth trading depth and liquidity are shared among the seven exchanges. For the exchanges, POC is the value link. By sharing trading depth and liquidity, users can be more efficient, a large number of users can be quickly accumulated, and more revenue and value can be created; For POC, by sharing transaction depth and liquidity, POC can get more traffic and circulation scenarios; For users, it can rece the transaction risk caused by the sharp rise and fall of the price. At the same time, the market price is relatively more stable and the transaction cost is lower when the large amount of transaction, so they can enjoy the smooth and timely transaction experience of any amount. 190509140844216899.jpeg in the future, with the value support of many application scenarios, the operation of professional teams, the guarantee of mature technology, and the absolute advantage of many professional exchanges sharing trading depth and liquidity, POC is bound to have more value and competitiveness in the project of blooming flowers. 190509140845191542036.png statement: This article is written by the author of golden finance. The opinions only represent the author himself, and never represent that golden finance agrees with his opinions or confirms his description. The author of this article: I spread to share + collect + pay attention to more information more activities more Disclaimer: as an open information sharing platform, golden finance only represents the author's personal views, has nothing to do with the position of golden finance platform, and does not constitute any investment finance suggestions. Risk tips for downloading appdownloadapp on PC desktop site to prevent the risk of illegal fund-raising in the name of "virtual currency" and "blockchain"

3.

1. Q coin

Q coin, referred to as QB, also known as QQ coin, Tencent Q coin, etc. Usually its exchange rate is 1q currency = 1 RMB, with Tencent paipai net transactions are generally 10% off

QB is a virtual currency launched by Tencent, which can be used to pay for QQ bank number, QQ member service and other services. Tencent q-coin, through the purchase of QQ card, telephone recharge, bank card recharge, network recharge, mobile phone recharge card, one card recharge card and other ways to obtain

The face value of QQ card is 10 yuan, 15 yuan, 30 yuan, 60 yuan, 100 yuan and 200 yuan respectively

there is another kind of electronic cryptocurrency, qqcoin, which is not related to each other

2. Litecoin

litecoin, abbreviated as LTC, currency symbol: Ł; It is a kind of network currency based on "peer-to-peer" technology. It is also an open source software project under MIT / X11 license. It can help users make instant payments to anyone in the world

lightcoin is inspired by bitcoin (BTC) and has the same implementation principle in technology. The creation and transfer of lightcoin is based on an open source encryption protocol and is not managed by any central organization

3, infinite coin

infinite coin (hereinafter referred to as IFC) is a new digital currency, which has more circulation advantages than bitcoin, and fills the short board of bitcoin in the field of commercial circulation and promoting commercial operation. The positioning of unlimited money is to serve the daily life of small transaction payment

one transaction of infinite coin needs three confirmations, each confirmation takes three seconds, and the transaction confirmation speed is very fast. Because bitcoin transaction needs 6 confirmations, which takes about 1 hour, and lightcoin transaction takes 15 minutes, infinite coin is used in daily common transactions, which is more practical

infinite coin was released on June 5, 2013. Based on scrypt POW algorithm. A block is generated in 30 seconds. In the initial block, there are 524288 infinite coins in each block. After that, for every 86400 blocks generated, the number of coins in the block is halved, with a total of 90.6 billion. The difficulty of mining is adjusted every hour

Quark coin is not the currency in real life, it exists safely in the computer of global network

quark network is protected by six most advanced encryption algorithms to ensure that it can become a digital ledger. The whole network uses each of the six functions to generate a proof of work, and the coin maker must "verify" these transactions to ensure that each coin increase is real and effective

only regular computer can participate in ensuring that it can maintain a highly secure peer-to-peer network, which makes it more decentralized

quark coins can only be g up through the CPU of regular computers. In the first 36 weeks, a total of 247605120 quark coins will be g out. Since March 30, 2014, the annual quark coins set at 1050000 can enter the market through "digging", and the block reward will never be less than one, which is currently two

Zetacoin is an open-source digital currency based on SHA-256 algorithm. The initial coin mining is 160 million coins, and the subsequent annual inflation is a better incentive, To keep the hash of the network is not pure transaction cost

The total number of

zetacoin is 160 million, 1000 zets per block and half of 80640 zets per block

4.

POC is the abbreviation of proof of concept, which means to provide evidence for opinions. It is a set of suggested electronic models, which can be used to demonstrate the design of teams and customers, and allow to evaluate and confirm the conceptual design scheme. The evaluation of POC may cause the adjustment of specifications and design

function:

the commitment of design and the opinions recognized by all will be recorded in the design adjustment document for future reference. In this way, POC continues to develop. If you need help completing these tasks, you can find assistance resources at Queensland University

extended data:

evaluation and verification of POC

the process of evaluation and verification is to seek feedback from risk takers through POC and filing design documents. Through POC evaluation, risk takers may put forward requirements for adjusting specifications and design

sometimes, e to design defects or inappropriate places, the design team may have to go back to the drawing board. Customers may decide to stop designing or look for other teams because the design does not pay enough attention to the needs of customers and users, or because of the instability of customer needs

sometimes the change is caused by the customer organization or project decision-maker. Generally, at the end of the evaluation and verification process, the design commitment and the opinions accepted by all will be recorded in the design documents

this is often an important milestone in the life cycle of proct development. After the evaluation and verification, POC can continue to develop

5. Let me tell you this: POW has almost all the advantages and POCS have none of the disadvantages. Bitcoin's pow consensus mechanism has obvious shortcomings: energy waste, noise, mining centralization. The cost of bitcoin mining is getting higher and higher, and the computing power is concentrated in several large mines, so it is difficult for ordinary users to participate; HDFS adopts POC mechanism for hard disk mining, so that everyone can mine.

6. Bitcoin is one of the most representative virtual currencies. A group of virtual currencies headed by bitcoin will exist for a long time. It will not replace the current legal currency. It will exist independently of the legal currency. It does not belong to any country. Some virtual currencies are reached by some people first, and then graally form a wider circulation because of its value, If more people reach this consensus, they will have the value of existence in the end. Of course, most of the virtual currency has no value, it is a kind of air currency. If a currency wants to exist for a long time, it must go through a long period of ups and downs, and constantly dig out its greater use value. Only in this way can it be a virtual currency with real value< There are two ways to invest in virtual currency:

first, mining is the only way to obtain some virtual currency such as bitcoin. After professional mining equipment is connected to the mine pool, bitcoin is obtained through a lot of calculation. Besides the cost of mining equipment, there is also the most important electricity cost. Mining machine is a computer, The required power consumption is not small, and the electricity cost needs to be continuously invested for a long time, so the mining income should be above the electricity cost, so the investment in mining is feasible. It can be divided into the following situations:

1. The cost of electricity is very low or electricity is free, there are some special instries that can enjoy lower electricity prices than ordinary residents, or build their own hydropower plants, etc...

2. The mining output is fixed. Friends who have g mines will know that one of the major obstacles in mining is the difficulty of computing power. Take bitcoin as an example, the number of bitcoins is fixed, but with more and more people digging, the output will be lower and lower, and then the income will be lower and lower. If the electricity cost is fixed, then when the output income is equal to the electricity cost, the output income will be lower and lower, Mining is no longer feasible

3. The currency price is stable. Mining will have the problem of accounting return to the current cycle: output * current currency price electricity cost = net income

mining machinery cost / net income = return to the current cycle

we mentioned that the output is fluctuating, and the currency price is also fluctuating, but we can choose to sell coins under the condition of our own income, which requires a large amount of personal reserved funds, Because once you choose to hoard money, it means that you will not generate revenue before the money price reaches the ideal price, but you need to put in a fixed electricity cost< In the second half of 2017, the virtual currency ushered in a bull market. Before that, whether you buy bitcoin or Ethereum, it's easy to double your assets, but it's a transition to the market in 2018, Most of the quilt cover, and fry money overnight rich have, overnight bankruptcy also have. Similarly, currency speculation can be divided into the following situations:

1. The most common way of currency speculation is to buy at a low price and sell at a high price. It's easy to make money in a bull market. As long as you are optimistic about the currency and find a low price to buy, you can sell by yourself (I suggest that the mainstream currency is better)

2. In private placement, some newly issued but not yet listed coins will be privately raised, that is, crowdfunding. At the beginning, it is a low price, which may be a few cents or even a few cents. In the process of issuing and listing, there are unlimited possibilities. It is very possible to double or even ten times the price, but there are also some cases that can not be launched on the platform or broken, So these are not worth money in hand, just a series of figures. At the same time, private placement is not allowed by the state

3. Contract trading, which is the trading object or subject matter of futures trading, is a standardized contract formulated by the futures exchange to deliver a certain quantity and quality of goods at a specific time and place, and the futures price is achieved through open bidding

generally speaking, contracts can be bought up and bought down. When the market is in a bear market, buying up and currency price rising can bring benefits; Buying down and currency price falling will bring profits. Meanwhile, bear market fluctuation is small, and leverage can be added to increase the amount of capital

therefore, with the development of virtual currency and the recognition of many countries, virtual currency will not only be mentioned in real life, but it is also reliable to invest in virtual currency. However, in different periods, facing different market, there will be different ways of investment. If you choose to hoard money at a high price in a bull market, it is not reliable, So whether you invest in virtual currency depends on how you invest