Mixed mining

1. When it comes to money, mining is indispensable. In ethereum network, if you want to get Ethereum, you also need to mine it. When it comes to mining, there must be a consensus mechanism
do you remember what the consensus mechanism of bitcoin is? The consensus mechanism of bitcoin is pow. To put it simply, the more work you do, the higher the amount of computation you pay, the more likely you will be the first to find the correct hash value, and the more likely you will be rewarded with bitcoin
however, there are some defects in the pow of bitcoin, that is, it is too slow to process transactions, and miners need to constantly collide hash values through calculation, which is costly and inefficient. Friends who are interested in blockchain knowledge should see such a saying:
in order to make up for the deficiency of bitcoin, Ethereum has proposed a new consensus mechanism, called POS (this is the abbreviation of English, which means "proof of equity", also translated into "proof of equity")
POS simply means the same as its literal meaning: equity, equity. The more currency you hold, the more equity you have, the higher your equity
Ethereum's POS means that the more money you hold, the longer you hold it, the less difficult it will be to calculate and the easier it will be to mine
in the initial setting of Ethereum, Ethereum hopes to build a relatively stable system by using POW in the early stage, then graally adopt POW + POS, and finally completely transition to POS. So, it's true that the consensus mechanism of Ethereum is POS, but POS is only a plan or goal at the beginning of Ethereum's release. At present, Ethereum has not yet transitioned to POS, and the consensus mechanism adopted by Ethereum is still pow, that is, the pow of bitcoin, but it is slightly different from the pow of bitcoin
the amount of information here is a bit large,
the first information point is that the consensus mechanism currently adopted by Ethereum is also pow, but it is slightly different from the pow of bitcoin. So, what's the difference between the pow of Ethereum and bitcoin: in short, the mining difficulty of Ethereum can be adjusted, but the mining difficulty of bitcoin can't be adjusted. Just like our college entrance examination, because the teaching situation and the number of students in different provinces are not the same, so the college entrance examination is divided into national papers and provincial independent proposition
Ethereum said that I am in favor of the topic by region. Bitcoin said: No, it must be the same volume in the whole country. The difficulty is the same for everyone
the popular explanation is that bitcoin uses computer computing power to do a lot of hash collisions, enumerate various possibilities to find a correct hash value. The Ethereum system has a special formula to calculate the difficulty of each block. If a block is verified faster than the previous block, Ethereum protocol will increase the difficulty of the block. By adjusting the block difficulty, the time needed to verify the block can be adjusted
according to the Ethereum protocol, the dynamic adjustment method of difficulty is to make the time interval of creating new blocks in the whole network 15 seconds, and the network uses 15 seconds to create blockchain. In this way, because the time is too fast, the synchronization of the system is greatly improved, and it is difficult for malicious participants to launch 51% (that is, more than half) of the computing power to modify historical data in such a short time
the second information point is: in the initial setting of Ethereum, we hope to achieve the transition from POW to
POS through phased upgrade
dating back to 2014, at the beginning of Ethereum's launch, the team announced that the launch of the project would be divided into four stages, namely, Froniter, homestead, metropolis and serenity. In the first three stages, the consensus mechanism adopts pow (workload proof mechanism), and in the fourth stage, it switches to POS (equity proof mechanism)
on July 30, 2015, the first phase "frontier" of Ethereum was officially released. This phase is only suitable for developers. Developers can write smart contracts and decentralized application DAPP on Ethereum network, and miners begin to enter Ethereum network to maintain network security and get Ethereum coins. The leading-edge version is similar to the beta version, proving whether the Ethereum network is reliable or not
on March 14, 2016, Ethereum entered the second stage of "homeland". In this stage, Ethereum provides the wallet function, so that ordinary users can easily experience and use Ethereum. There is no obvious technology improvement in other aspects, but it shows that Ethereum network can run smoothly
in September 2017, Ethereum has reached the third stage of "metropolis"“ "Metropolis" is composed of Byzantine and Constantinople. The goal of this stage is to introce the hybrid chain mode of POW and POS, so as to prepare for the smooth transition from POW to POS. This is the latest popular "Ethereum Constantinople upgrade". In the Constantinople upgrade, Ethereum will make some changes to the underlying protocols and algorithms to lay a good foundation for the implementation of POW and
POS
how much reward will Ethereum get for mining? Miners who win the block creation competition will get the following income:
1. Static reward, 5 ethereums
2. The fuel cost in the block, i.e. gas, we talked about in the last issue
3. As a part of the block, it includes the extra reward of "Uncle block". Uncle is uncle of uncle, and each uncle block can get 1 / 32 of the mining reward as a reward, that is, 5 times 1 / 32, which is equal to 0.15625 ethereums. Here, let's briefly explain the concept of "TERT block". The concept of "TERT block" was proposed by Ethereum. Why should we introce the concept of TERT block? This also starts with bitcoin. In the bitcoin protocol, the longest chain is considered absolutely correct. If a block is not part of the longest chain, it is called a "orphan block". An isolated block is a block, which is also legal, but it may be found later, or the network transmission is slower, and it does not become part of the longest chain. In bitcoin, the solitude is meaningless and will be discarded later, and the miners who find the solitude will not receive mining related rewards
however, Ethereum does not think that isolated blocks are worthless, and Ethereum system will give rewards to miners who find isolated blocks. In Ethereum, isolated blocks are called "Uncle blocks", which can contribute to the security of the main chain. Ethereum's ten second block interval is too fast, which will rece the security. By encouraging the use of tertiary blocks, the main chain can obtain more security guarantees (because the isolated block itself is legal). Moreover, paying the tertiary block can also stimulate the miners to actively mine and actively use tertiary blocks. Therefore, Ethereum thinks that it is valuable.

2. Bitcoin mining is a process of using computer hardware to do mathematical calculation for bitcoin network to confirm transactions and improve security. As a reward for their service, miners can get the Commission included in the transaction they confirm, as well as the newly created bitcoin. Mining is a professional and competitive market. The bonus is divided according to the amount of calculation. Not all bitcoin users mine, and it's not easy to make money from mining

the popular point is to use the computing power of your computer to solve mathematical problems, and then give you a certain amount of bitcoin in return
bitcoin mining has gone through three stages: CPU, GPU and ASIC. At present, bitcoin mining needs professional ASIC mining machine. At present, Avalon, butterfly lab and roasted cat are the most famous mining machine manufacturers in the market, but butterfly lab in the United States likes to evade tickets, while roasted cat only sells mining machines with small computing power. Avalon has proced the world's first ASIC miner, and Avalon has delivered the first three generation chip orders. Avalon3 is about to enter the market

and now you need to join a mining pool, because the chance of digging bitcoin alone is very small, I hope you can.

3. This is not allowed to mix fire. AMD and NVIDIA are used to restrict players to play fire and SLI. Multi graphics card fire fighting must have the same core of all graphics cards. For example, six rx480 and rx470 can be used, but rx470 + rx480 can not be used in fire fighting,

4. According to ZBG's announcement, the platform will purchase the equivalent ZT from the market with all the transaction fees, which are divided into four parts: 30%, 50%, 10% and 10%, and distributed to users according to the specified proportion. Transaction fee return mechanism: POW + POS + reward mechanism. ZBG community adopts the mode of "POS + POW mixed transaction mining" to give back to community investors with ZT, and at the same time rewards the traders and ZT holders of the website.

5. BL go to dig copper at the gate of Ogg. Durontal turns around. After 75, tin mines will go to barren land. There are also copper mines at the foot of the mountain. When you dig barren land, you can go to ratchet city for melting. When you can dig iron, you must go to thousand needle stone forest. You can dig for a long time there. Then it should be mitilver. Go to barren land. After mitilver is g, you can dig silver, Fuser silver, the first choice for fuser silver is the Western plague and the eastern plague. You can dig from the Western plague to the eastern plague when you shoot the battlefield, and then dig the original road after you finish. As for the mines, they are fixed. It's also very interesting for you to explore them by yourself. It's very simple. There are big birds, even small kisses

6. I've learned about this chaotic pool recently, and I feel that it's still very good. It's supported by real mines, and it's carried out through computing power. According to this model, the income should be very stable, and the threshold is not high. I'm going to do it in the near future

7. 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. It can be circulated all over the world with a fixed total amount and no issuing body< At present, there is no legal electronic currency in China. QQ currency is a kind of game currency with fixed value, which is released by Tencent. Alipay's three party payment system is a means of payment. They all have the subject of operation. Legal tender is issued by the central bank and endorsed by the state as credit

Shanzhai coin is to learn from bitcoin and innovate and expand on the basis of bitcoin. The user community cannot be compared with bitcoin. The consensus of many people in the community is that some well-designed counterfeit coins will become a supplement to bitcoin, and bitcoin will become a supplement to fiat money, with one more choice.

8. POW is g with CPU. The better CPU, the greater the probability of digging. POS is g with money in your wallet. It depends on the amount of money you have, the length of time you spend in your wallet, the length of time you spend online, and so on

9.

With the development of blockchain to 3.0, application exploration is the current goal

according to IDC definition, blockchain refers to the distributed ledger that records information and data. The account book is stored among multiple participants in the peer-to-peer network, and the participants can add new transactions to the existing transaction chain by using the encrypted signature to form a secure, continuous and invariable chain data structure; From the perspective of data, blockchain is a kind of distributed data that cannot be changed

in 2008, an article on "bitcoin: a peer-to-peer e-cash system" marked the birth of bitcoin, and the global blockchain instry also started. So far, blockchain has developed from 1.0 to 3.0, from digital currency to application exploration stage

the above data comes from the in depth analysis report on business model innovation and investment opportunities of China's blockchain instry , and the Institute also provides solutions such as instrial big data, instrial planning, instrial declaration, instrial park planning, and instrial investment promotion