Virtual currency consensus

1.

what is digital currency

digital currency can be used to describe all electronic currencies, including virtual currency and cryptocurrency. Digital currency is a kind of electronic currency without any physical form. Because of its functions and inherent attributes, it is the same as the standard illegal fixed currency, and can also be referred to as the network version of cash. Digital currency is invisible. People need to use and hold it through devices that can be connected to a specific network

T1: eth (the first public chain at present, the underlying platform of Shanzhai coin breeding, and in the speculation of eth2.0) EOS (community consensus + DAPP possible explosion + defi can also join + drop out of high cost performance) Zec (anonymous leader)

T2: Yas (UBI concept, low market value, great potential) atom (cosmos, advantage new public chain), XRP (the decline in 2019 has not risen, so the upward space is still very large) Polkadot dot (Boca, the goal is to surpass Ethereum) KSM (Boca pioneer)

T3: Ada (potential) NEO (myth of 1000 times of the last bull market), ont (strong village), Iost (Iost is currently undervalued, DAPP is also in good development)

there are platform coins in the coin circle, corresponding to HT, BNB, MX

2. 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
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3. I don't know who knows how BTC coin makes money. Now there are many platforms that use blockchain to cheat money. Each platform has different operations. Some platforms make money when you buy a bitcoin and sell it when it goes up, and lose when it goes down. There is also a platform for you to buy a bitcoin and transfer it to your wallet. No matter whether the coin goes up or down, there will be income every day. If the coin goes up, there will be more income and the coin goes down, there will be less income. Anyway, there will be income every month.

4. QQ coin is more famous in China. If you are talking about cryptocurrency, the well-known ones are Yuanbao coin, Zhaocai coin, Malaysian coin and so on

but bitcoin is the most popular cryptocurrency at present, while dog coin, Wright coin and reborn coin are relatively popular

bitcoin is a consensus network, contributing to a new payment system and a fully digital currency. It is the first decentralized peer-to-peer payment network, which is controlled by its users without a central management organization or middleman. From the user's point of view, bitcoin is much like Internet cash. Bitcoin can also be regarded as the most outstanding three style bookkeeping system.

5. POW: proof of work (POW), a simple explanation is a proof to confirm that you have done a certain amount of work. Because the whole process of monitoring work is usually extremely inefficient, and it is a very efficient way to prove that the corresponding workload has been completed through the certification of the work results. For example, in real life, graation certificate, driver's license and so on, are obtained by means of test results. That is to say, how much money you get depends on your effective contribution to mining. Simply understand, the better your computer performance, the more revenue you will get. This is to allocate money according to your workload. Most digital currencies, such as bitcoin, lightcoin, etc., are virtual currencies based on POW mode (the higher the computing power, the longer the mining time, the more coins you get)
pos: POS is a consensus algorithm in the public chain, which can be used as a replacement of pow algorithm. POW is a mechanism to ensure the security of bitcoin, Ethereum and many other blockchains, but POW algorithm is criticized for destroying the environment and wasting power in the process of mining. POS tries to solve these problems by replacing the concept of mining with a different mechanism
POS mechanism can be described as a kind of virtual mining. POS mainly relies on the token in the blockchain itself. In pow, a user may buy a computer for 1000 dollars, join the network to mine and proce new blocks, and get a reward. In POS, users can buy tokens of equal value with us $1000 and put them into the POS mechanism as deposit, so that users have the opportunity to generate new blocks and get rewards. In pow, if users spend $2000 on hardware equipment, they will of course get twice the computing power to mine, thus getting twice the reward. Similarly, if you invest twice as much token as the deposit in the POS mechanism, you have twice as much chance to get the right to generate new blocks.

6.

1. This is last year's news: some netizens calculated a sum of money, and converted the computing power of tianhe-2 into mining efficiency. About two to three bitcoins can be g out in an hour, which is 15000 yuan

2. It can dig up 360000 yuan a day. Mayor Chen Jianhua said that tianhe-2's daily electricity bill is 300000 yuan, which seems to make a little money. However, if labor costs, depreciation of machinery and other costs are taken into account, "mining" will not make much money

3. This is the data provided by a press release at the end of November 2013. Of course, according to the current computing power, we can't dig so many bitcoins, and the revenue will be lower. Even tianhe-2 mining is a loss

4. After all, bitcoin mining is a very professional business. It needs a professional bitcoin miner. And the update speed of bitcoin miner is amazing

5. Taking Avalon mining machine as an example, it has been upgraded to three generations of chips, and the fourth generation will come out soon

7. Is the so-called global consensus in the blockcompany piled up by people? It's not accumulated by people, it's accumulated by knowledge.

8. The circulation of virtual currency generally does not need collateral, which is generally not absolute. For example, bitcoin relies on consensus as the basis of circulation without any collateral. The stable currency usdt has collateral. In theory, each usdt issued needs to be mortgaged one dollar. Learn about Jack coin circle Club