Over age coin POS ore pool
Publish: 2021-05-28 06:21:02
1. mining pools are arranged according to computing power. For example, the computing power of digyi mining bitcoin mining pool accounts for about 4% of the total network computing power, ranking among the top ten mining pools in the world. The four technology blockchains are relatively good.
2.
Mine pool refers to:
as the computing level of the whole bitcoin network continues to rise exponentially, a single device or a small amount of computing power can not get the block reward provided by the bitcoin network on the bitcoin network
after the computing power of the whole network has been improved to a certain extent, the low probability of getting rewards has prompted some geeks on "bitcoin talk" to develop a method that can combine a small amount of computing power and operate jointly, and the website established in this way is called "mine pool"
extended data:
the existence of the mine pool reces the difficulty of bitcoin and other virtual digital currency mining, reces the mining threshold, and truly realizes the bitcoin mining concept that everyone can participate in
but its disadvantages are also very obvious, because computing power is connected to the mine pool. As a mine pool, it will have huge computing power resources. In the bitcoin world, computing power represents the bookkeeping right, and computing power is everything. If the computing power of a single mine pool reaches more than 50%, it will be easy to launch 51% attacks against virtual digital currencies such as bitcoin, The consequences are very terrible:
the mine pool can make the mine pool with 49% of the remaining computing power have no harvest, instantly quit the competition and go bankrupt. The mine pool's computing power exceeds 50%. If 51% attack is launched, it will easily occupy all the effective computing power of the whole network
3. Author: Feng Chiyu
link: https://www.hu.com/question/22023800/answer/22741288
source: Zhihu
the right belongs to the author. For commercial reprint, please contact the author for authorization. For non-commercial reprint, please indicate the source
the first conclusion: ripple is not a currency, but a payment network; XRP currency used in the network is a kind of currency. Compared with bitcoin, the former is a payment system, while the latter is money, which is not the same kind of things, so there is no substitutability
bitcoin has been fried rotten, and hushang's answer is close to saturation, so we don't need to repeat our work. Let's focus on ripple
what is ripple
ripple is an open payment network. Just like ripple, the word ripple emphasizes the flow and transmission of funds
in life, acquaintances borrow money from each other and may not write IOU. Sometimes, several friends borrow money from each other, generate multi angle debts, and may adjust the relationship of debts and creditor's rights according to the alienation of relatives. For example, a owes B 5 yuan, B owes C 5 yuan, and a and C are familiar with each other. Once three people discuss, they may directly ask a to repay C. In fact, not only between acquaintances, many small shops and small companies will allow acquaintances to write off on credit
that is to say, everyone is more willing to have debt relationship with the people they trust or are familiar with, and through the trust network between people, funds can flow smoothly
the above is the money network between people in the real world. If all this happens in the Internet world, it is the money flow system that ripple is trying to achieve
but in this network, the relationship between you and your trusted acquaintances is transformed into the relationship between you and your trusted gateway. As the name suggests, a gateway is a "gateway" between one network and another, that is, a network gateway. To go from one room to another, you have to go through a door. Similarly, to send information from one network to another, you have to go through a "gateway", which is the gateway. As the interface between network and network, network and the real world, gateway is like a bank counter, which converts your currency into a series of numbers in your account
what happens in ripple is just like the reality. When you change 100 RMB into FCY issued by gateway a through gateway a, you will have an extra amount of 100fcy in your ripple account. You can transfer the 100fcy to a stranger through gateway a, such as Xiao Ming, Xiaoming can exchange the money into real-world RMB through gateway a. In the whole process, the relationship between creditor's rights and debt changes as follows:
1. You deposit 100 RMB into gateway a, and gateway a owes you 100 RMB and gives you a 100fcy IOU
2. You pass the IOU of 100fcy to Xiaoming through gateway A. at this time, gateway a no longer owes you money, but owes Xiaoming RMB 100, because the IOU is in Xiaoming's hands
3. Xiao Ming takes the IOU to go to gateway a to cash RMB 100
in the whole process, you and Xiao Ming only establish a trust relationship with gateway a, but you and Xiao Ming do not need to establish a trust relationship
what is XRP coin
what is XRP coin at the beginning? Its main function is to pay transaction costs
XRP is a kind of cryptocurrency embedded in ripple system. Unlike bitcoin, ripple issued 100 billion XRP coins at the beginning of its establishment, and the total amount is no longer increasing, that is to say, it has g up the mine ahead of time. Each transaction (for example, you transfer 100fcy to Xiaoming) requires a small amount of XRP currency, which is technically destroyed directly. At the same time, XRP coins are also used as margin. When you open a ripple account, you need to put 50 XRP coins in it as a guarantee
according to opencoin, the issuing and maintenance company of ripple, the first 100 billion XRP coins will be given to investors and founders, 50 billion will be distributed free of charge (that is, opening accounts for free for a period of time), and the other 30 billion will be held by opencoin, which will be sold from time to time to make profits. Opencoin also admits that holding and selling XRP coins is the only way to make a profit<
ripple's influence
at the beginning of ripple's birth, rumors abound. Many people claim that ripple is more in line with the operation mode of money flow in reality, and will replace bitcoin in the future
but in fact, it is too early to judge whether ripple system can succeed. As soon as ripple started to operate, many problems have been exposed, including that its security is not as good as the official propaganda
at the beginning, ripple itself is just a new currency circulation system or payment network, and the essence of XRP currency is the lubricant to assist the currency circulation in the system. If this system is successful one day, it will only have a positive impact on the circulation of bitcoin. To say that "Ripple can replace bitcoin" is actually equivalent to saying that "Alipay can replace the renminbi" is wrong: the former is the payment system, the latter is the currency, not the same thing, so there is no replaceability. The emergence of Alipay has facilitated the payment and flow of RMB. Similarly, if the Ripple system is successful, its role is only to facilitate the payment and circulation of legal tender and bitcoin.
editor on February 22, 2014
10428 comments
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collection thanks put away
Huang Qi
the operation of not chasing new fans is not a good code farmer
included in the editor's recommendation · 78 people agreed with the answer
@ Feng Chiyu
only mentioned the scene of ripple when users and users pay, but ripple is far more than that. I add two points: trading system and automatic path search
through a gateway, you can deposit RMB, US dollars or virtual currencies, such as bitcoin and Leyte currency, into ripple wallet. And in this system, you can achieve any currency to buy or sell a single transaction. Trading here is better than trading platform. The transaction information of traditional trading platform is not open and opaque. In ripple, every order, cancellation and transaction record can be fully inquired. Through websocket interface, developers can also implement automatic trading program, and basically get real-time data in addition to network delay Network delay depends on the situation, the delay of using US server may be less than 0.1 second!) However, most of the traditional trading platforms have a certain cache time for the API interface. A few seconds of cache time may be fatal to the automatic trading program
with this trading market, ripple can realize a very advanced means of payment - automatic path search
to give a practical example, if I was a Chinese programmer working for a company in the United States, I might get us dollars through Western Union remittance or other ways before, and then I would go to the bank to exchange them for RMB. In the middle of this, the handling cost is relatively high. With ripple, I can do this now:
I trust a RMB gateway, such as ripplecn or ripplechina gateway, which is one of the best RMB gateways in China. Then American companies deposit bitcoin or US dollars through bitsmap gateway and send them to ripple. The service charge is only about 0.000012xrp, It is equivalent to about RMB 0.00000108. Then I will directly receive the CNY quota in the ripple system and withdraw it at the RMB gateway. The service charge for withdrawal is 3% for ripple CN gateway and 6% for ripple China gateway. It only takes a few seconds to complete the automatic exchange payment in ripple system
the full-automatic exchange in the payment step is the automatic path search of ripple, which is the essence of ripple system. Path automatic search relies on the above-mentioned hanging single transaction system. If the above American company deposits bitcoin, the system will complete the following calculation in a few seconds: query the amount of XRP after BTC / XRP exchange, and then the amount of CNY after XRP / CNY exchange. If there is a more appropriate path, such as BTC / USD - & gt; USD/XRP-> XRP / CNY, or BTC / USD - & gt; USD / CNY, the system will also automatically calculate and find the cheapest path for the sender to complete the exchange payment
once, I used ripplecn gateway CNY, and my friend only trusted ripplechina. He wanted me to give him 10 yuan, so I entered the sending interface to input 10 yuan, but the system showed that I only needed to send 9.9998 yuan. Because there is a price difference between the two gateways in the CNY / XRP trading market, the system automatically realizes the path search and provides me with the cheapest payment path
there will be many applications on ripple in the future, and ripple's second payment experience is excellent. If you have a ripple wallet, try clicking send in the wallet and the recipient enters it [email protected] perhaps [email protected] There will be a call fee and Q coin recharge interface, which is an application I made for ripple. You can use XRP, U.S. dollar, RMB, bitcoin and other currencies to purchase q-coin, and exchange it into RMB in seconds to complete the recharge request automatically
ripple is likely to go against the weather in the future. As for bitcoin? His role in the virtual currency instry is similar to that of legal currency, which is totally different from ripple's payment system<
editor on February 27, 2014
7832 comments
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Zhihu user
1 person agreed with the answer
ripple basic concept and principle, others have answered, simply speaking, it is a payment network, anyone can become a node of this network to issue currency and then circulate throughout the network. There are some innovations
but in the long run, it must grow faster than bitcoin, otherwise it is likely to lose in the competition, because at present, most of its functions can be realized in bitcoin network
from a technical point of view, because bitcoin has "dyeing" technology, anyone can issue currency, stocks, funds and so on by becoming a node on the bitcoin network. Assuming that the bitcoin is fully legalized, Alipay will turn 1 bitcoin "dyed" into the one and only special bitcoin that is unique and unforgery in the bitcoin network. Then it will promise the public that the stained coin can be exchanged for Alipay by 1 yuan. So the public can use Renminbi to exchange Alipay's "bit yuan" for consumption and payment. So these special bitcoins have what experts call "guarantee" or "anchor". As long as Alipay is credible, these "bit yuan" will always be valuable and can be used safely. At the same time, as bitcoin transactions are open throughout the network, everyone can see how much Alipay has issued "bit yuan", whether it has spammed money and oversold its own assets to guarantee the currency. So the only advantage of ripple in technology is that it can transfer money quickly. It doesn't need bitcoin to wait for dozens of minutes. But in the long run, bitcoin can speed up the transfer speed to a few minutes in the future through technical upgrading
link: https://www.hu.com/question/22023800/answer/22741288
source: Zhihu
the right belongs to the author. For commercial reprint, please contact the author for authorization. For non-commercial reprint, please indicate the source
the first conclusion: ripple is not a currency, but a payment network; XRP currency used in the network is a kind of currency. Compared with bitcoin, the former is a payment system, while the latter is money, which is not the same kind of things, so there is no substitutability
bitcoin has been fried rotten, and hushang's answer is close to saturation, so we don't need to repeat our work. Let's focus on ripple
what is ripple
ripple is an open payment network. Just like ripple, the word ripple emphasizes the flow and transmission of funds
in life, acquaintances borrow money from each other and may not write IOU. Sometimes, several friends borrow money from each other, generate multi angle debts, and may adjust the relationship of debts and creditor's rights according to the alienation of relatives. For example, a owes B 5 yuan, B owes C 5 yuan, and a and C are familiar with each other. Once three people discuss, they may directly ask a to repay C. In fact, not only between acquaintances, many small shops and small companies will allow acquaintances to write off on credit
that is to say, everyone is more willing to have debt relationship with the people they trust or are familiar with, and through the trust network between people, funds can flow smoothly
the above is the money network between people in the real world. If all this happens in the Internet world, it is the money flow system that ripple is trying to achieve
but in this network, the relationship between you and your trusted acquaintances is transformed into the relationship between you and your trusted gateway. As the name suggests, a gateway is a "gateway" between one network and another, that is, a network gateway. To go from one room to another, you have to go through a door. Similarly, to send information from one network to another, you have to go through a "gateway", which is the gateway. As the interface between network and network, network and the real world, gateway is like a bank counter, which converts your currency into a series of numbers in your account
what happens in ripple is just like the reality. When you change 100 RMB into FCY issued by gateway a through gateway a, you will have an extra amount of 100fcy in your ripple account. You can transfer the 100fcy to a stranger through gateway a, such as Xiao Ming, Xiaoming can exchange the money into real-world RMB through gateway a. In the whole process, the relationship between creditor's rights and debt changes as follows:
1. You deposit 100 RMB into gateway a, and gateway a owes you 100 RMB and gives you a 100fcy IOU
2. You pass the IOU of 100fcy to Xiaoming through gateway A. at this time, gateway a no longer owes you money, but owes Xiaoming RMB 100, because the IOU is in Xiaoming's hands
3. Xiao Ming takes the IOU to go to gateway a to cash RMB 100
in the whole process, you and Xiao Ming only establish a trust relationship with gateway a, but you and Xiao Ming do not need to establish a trust relationship
what is XRP coin
what is XRP coin at the beginning? Its main function is to pay transaction costs
XRP is a kind of cryptocurrency embedded in ripple system. Unlike bitcoin, ripple issued 100 billion XRP coins at the beginning of its establishment, and the total amount is no longer increasing, that is to say, it has g up the mine ahead of time. Each transaction (for example, you transfer 100fcy to Xiaoming) requires a small amount of XRP currency, which is technically destroyed directly. At the same time, XRP coins are also used as margin. When you open a ripple account, you need to put 50 XRP coins in it as a guarantee
according to opencoin, the issuing and maintenance company of ripple, the first 100 billion XRP coins will be given to investors and founders, 50 billion will be distributed free of charge (that is, opening accounts for free for a period of time), and the other 30 billion will be held by opencoin, which will be sold from time to time to make profits. Opencoin also admits that holding and selling XRP coins is the only way to make a profit<
ripple's influence
at the beginning of ripple's birth, rumors abound. Many people claim that ripple is more in line with the operation mode of money flow in reality, and will replace bitcoin in the future
but in fact, it is too early to judge whether ripple system can succeed. As soon as ripple started to operate, many problems have been exposed, including that its security is not as good as the official propaganda
at the beginning, ripple itself is just a new currency circulation system or payment network, and the essence of XRP currency is the lubricant to assist the currency circulation in the system. If this system is successful one day, it will only have a positive impact on the circulation of bitcoin. To say that "Ripple can replace bitcoin" is actually equivalent to saying that "Alipay can replace the renminbi" is wrong: the former is the payment system, the latter is the currency, not the same thing, so there is no replaceability. The emergence of Alipay has facilitated the payment and flow of RMB. Similarly, if the Ripple system is successful, its role is only to facilitate the payment and circulation of legal tender and bitcoin.
editor on February 22, 2014
10428 comments
share
collection thanks put away
Huang Qi
the operation of not chasing new fans is not a good code farmer
included in the editor's recommendation · 78 people agreed with the answer
@ Feng Chiyu
only mentioned the scene of ripple when users and users pay, but ripple is far more than that. I add two points: trading system and automatic path search
through a gateway, you can deposit RMB, US dollars or virtual currencies, such as bitcoin and Leyte currency, into ripple wallet. And in this system, you can achieve any currency to buy or sell a single transaction. Trading here is better than trading platform. The transaction information of traditional trading platform is not open and opaque. In ripple, every order, cancellation and transaction record can be fully inquired. Through websocket interface, developers can also implement automatic trading program, and basically get real-time data in addition to network delay Network delay depends on the situation, the delay of using US server may be less than 0.1 second!) However, most of the traditional trading platforms have a certain cache time for the API interface. A few seconds of cache time may be fatal to the automatic trading program
with this trading market, ripple can realize a very advanced means of payment - automatic path search
to give a practical example, if I was a Chinese programmer working for a company in the United States, I might get us dollars through Western Union remittance or other ways before, and then I would go to the bank to exchange them for RMB. In the middle of this, the handling cost is relatively high. With ripple, I can do this now:
I trust a RMB gateway, such as ripplecn or ripplechina gateway, which is one of the best RMB gateways in China. Then American companies deposit bitcoin or US dollars through bitsmap gateway and send them to ripple. The service charge is only about 0.000012xrp, It is equivalent to about RMB 0.00000108. Then I will directly receive the CNY quota in the ripple system and withdraw it at the RMB gateway. The service charge for withdrawal is 3% for ripple CN gateway and 6% for ripple China gateway. It only takes a few seconds to complete the automatic exchange payment in ripple system
the full-automatic exchange in the payment step is the automatic path search of ripple, which is the essence of ripple system. Path automatic search relies on the above-mentioned hanging single transaction system. If the above American company deposits bitcoin, the system will complete the following calculation in a few seconds: query the amount of XRP after BTC / XRP exchange, and then the amount of CNY after XRP / CNY exchange. If there is a more appropriate path, such as BTC / USD - & gt; USD/XRP-> XRP / CNY, or BTC / USD - & gt; USD / CNY, the system will also automatically calculate and find the cheapest path for the sender to complete the exchange payment
once, I used ripplecn gateway CNY, and my friend only trusted ripplechina. He wanted me to give him 10 yuan, so I entered the sending interface to input 10 yuan, but the system showed that I only needed to send 9.9998 yuan. Because there is a price difference between the two gateways in the CNY / XRP trading market, the system automatically realizes the path search and provides me with the cheapest payment path
there will be many applications on ripple in the future, and ripple's second payment experience is excellent. If you have a ripple wallet, try clicking send in the wallet and the recipient enters it [email protected] perhaps [email protected] There will be a call fee and Q coin recharge interface, which is an application I made for ripple. You can use XRP, U.S. dollar, RMB, bitcoin and other currencies to purchase q-coin, and exchange it into RMB in seconds to complete the recharge request automatically
ripple is likely to go against the weather in the future. As for bitcoin? His role in the virtual currency instry is similar to that of legal currency, which is totally different from ripple's payment system<
editor on February 27, 2014
7832 comments
share
collection thank you put away
Zhihu user
1 person agreed with the answer
ripple basic concept and principle, others have answered, simply speaking, it is a payment network, anyone can become a node of this network to issue currency and then circulate throughout the network. There are some innovations
but in the long run, it must grow faster than bitcoin, otherwise it is likely to lose in the competition, because at present, most of its functions can be realized in bitcoin network
from a technical point of view, because bitcoin has "dyeing" technology, anyone can issue currency, stocks, funds and so on by becoming a node on the bitcoin network. Assuming that the bitcoin is fully legalized, Alipay will turn 1 bitcoin "dyed" into the one and only special bitcoin that is unique and unforgery in the bitcoin network. Then it will promise the public that the stained coin can be exchanged for Alipay by 1 yuan. So the public can use Renminbi to exchange Alipay's "bit yuan" for consumption and payment. So these special bitcoins have what experts call "guarantee" or "anchor". As long as Alipay is credible, these "bit yuan" will always be valuable and can be used safely. At the same time, as bitcoin transactions are open throughout the network, everyone can see how much Alipay has issued "bit yuan", whether it has spammed money and oversold its own assets to guarantee the currency. So the only advantage of ripple in technology is that it can transfer money quickly. It doesn't need bitcoin to wait for dozens of minutes. But in the long run, bitcoin can speed up the transfer speed to a few minutes in the future through technical upgrading
4.
Background: the financial application of blockchain technology brings high investment value
2018 China international big data instry Expo opened in Guiyang City, Guizhou Province on the 26th. At the meeting, it was pointed out that China will vigorously develop the digital economy in the future, deeply implement the action plan for the development of big data and cloud computing, and deeply study blockchain technology and application. Especially in the field of finance, the landing application has become the focus of the scientific and financial circles
1. The value source of blockchain is that it can perfectly solve the pain points of the current financial instry:
in today's asset securitization, insurance, supply chain finance, commodity trading, asset custody and other financial scenarios, e to many participants, high cost of credit evaluation, low settlement efficiency of intermediary institutions and other reasons, Traditional financial service methods are difficult to effectively solve the long-standing core pain points in the instry, such as information asymmetry, complex and rendant processes, and high information verification cost
2. Why can blockchain solve the above pain points:
blockchain technology integrates many basic technologies, such as distributed accounting, tamper proof, built-in contract, etc., and constructs a trust building mechanism with lower cost. The financial application based on blockchain technology can realize the ability of all market participants to obtain all transaction information and asset ownership records in the market without discrimination, and effectively solve the problem of information asymmetry; Smart contract embedding reces the error rate of payment and settlement, simplifies the process and improves efficiency; At the same time, based on transparent information and brand-new trust mechanism, there is no need to spend manpower, material resources and financial resources to confirm information among participants, which will greatly rece the trust cost between institutions, and then rece the price of financial services and transaction costs
3. The application of blockchain technology in the financial field mainly includes the following aspects:
① digital currency
among which bitcoin is the most famous. On the basis of bitcoin, a large number of other types of decentralized digital currencies have been derived. Such as: the heyday of bits
Compared with the traditional payment system, blockchain payment can directly carry out end-to-end payment for both parties without the help of the banking system, which can greatly improve the speed and rece the cost③ digital bills
④ bank credit management: the advantage of blockchain is that it can rely on program algorithm to automatically record credit related information and store it on every computer in the blockchain network, with transparent information, tamper proof and low cost
The major financial institutions and exchanges in Europe and the United States have explored the application research of building the next generation of financial asset trading platform based on blockchain technology4. The development prospect of blockchain. The future development of blockchain technology will have the most vitality with alliance chain as the entry point, and will have a significant effect and far-reaching impact on the transformation of traditional financial instry pain points
in response to the good investment prospects of blockchain, domestic enterprises such as Alibaba, Jingdong and Netcom have entered the market. The application of financial scenarios based on blockchain technology not only brings us security and convenience, but also provides us with broader investment space. The rise and price surge of digital currency represented by bitcoin (bitcoin was about RMB 20 cents when it was first listed in 2009, and its current price is about US $7300!) It's the best proof that people with a keen sense of smell have made a lot of money from it
Abstract: This is an encrypted digital currency based on the bitcoin developed by Nakamoto Tsung, which improves and adds many new functions, such as the double-layer reward system network, also known as the main node network. It also includes anonymous payment to improve the interchangeability (bitage) and real-time payment function docking to realize real-time transaction confirmation without relying on the authority of the center (P2P mall) In 2009, Nakamoto put forward the concept of bitcoin. Since then, bitcoin has spread rapidly in mainstream applications and commercial uses, becoming the first digital currency to attract a large number of users, which is a milestone in the history of digital currency. However, from the perspective of completing the transaction, we can find an important problem, that is, it takes too long for bitcoin block to confirm the transaction. Traditional payment companies have found a solution to enable the buyer and the seller to realize zero confirmation of bitcoin transaction, but this solution usually requires a trusted third party to complete the transaction outside the agreementbitcoin provides pseudonym transaction, realizes the one-to-one transaction relationship between sender and receiver, and can always record the transactions occurred in the whole network. Bitcoin only provides low-level privacy protection, which is well known in academia. Despite this deficiency, many people still believe in the transfer history recorded by blockchain
based on Nakamoto's achievements, bitshengshi is an encrypted digital currency with the purpose of protecting privacy. We have made a series of improvements on the basis of the concept of bitcoin, resulting in a decentralized cryptocurrency with good anonymity. It supports tamper proof real-time transactions, and has a point-to-point sub network that can provide service reward system for bitsheng network
2. Master node network
the whole node is the server running on the P2P network, so that small nodes can use them to accept the dynamic changes from the whole network. These all nodes need significant traffic and other resources that consume a lot of cost. Therefore, it will be observed that the number of these nodes on the bitcoin network presents a steady downward trend over a period of time, so that the block broadcast time needs an additional 40 seconds. In order to solve this problem, many solutions have been put forward, such as the introction of Microsoft Research's new incentive plan and bitnodes incentive plan
Figure 6: Mining reward model
5. With the upgrading of Ethereum to version 2.0 this year, the consensus mechanism will be converted to POS, which will have a huge impact on miners. There are two choices for miners. One is to sell mining equipment and buy eth to adapt to the stacking mechanism of POS; The second is to switch the miner to other networks supporting GPU miner. Nick foster, a representative of kabombacks, a US mining equipment distributor, said most eth miners would choose the latter
after Ethereum is upgraded to version 2.0 POS mechanism, miners may switch mining machines to other networks
as Ethereum is finally ready to start its Ethereum 2.0 upgrade later this year, thus eliminating the long-term delay, the network will start to move towards the proof of rights model
therefore, the network will give up the workload proof consensus algorithm, so that eth miners have little choice. As their equipment will become obsolete, they will be forced to start mining counterfeit coins or re qualify as eth mortgagors. So, what is the current situation of Ethereum mining? With the coming transition, what will happen to the whole instry< At present, Ethereum consensus is based on POW system, which is similar to bitcoin (BTC). As a result, Ethereum's mining process is almost the same, as miners use their computing resources to earn rewards for each block they try to complete< However, there are still major differences between these processes. Although bitcoin mining has relied almost entirely on ASIC (large, loud machines designed specifically for cryptocurrency mining, most of which are concentrated in areas with low electricity prices), Ethereum's pow hash algorithm ethash is designed to support global chip manufacturers (such as NVIDIA and AMD). As Thomas Heller, global business director of cryptocurrency mining pool f2pool, explained in a conversation with cointegraph, GPU is much cheaper and easier to access than ASIC
"as ASIC is a very professional machine, when a new generation of procts is released, it is usually a huge technological leap. As a result, they have a much higher hash rate and are more energy efficient than the previous generation. This means that those manufacturers have spent a lot of money to research and develop it. Their machines are usually very expensive, and GPUs are much cheaper. "
Heller added that those who use GPU miners "have more flexibility to mine." For example, the popular NVIDIA geforce GTX 1080 Ti card can mine more than 15 different currencies, while ASIC units usually support only one currency
nevertheless, Ethereum is not completely immune to ASIC miners - at least in its current state. In April 2018, bitcontinent released antminer E3, an ASIC specially proced for mining Ethereum. Although widely praised for its hash rate of 180 megahashes per second and power consumption of 800 watts, it has received different responses from the Ethereum community. After the ASIC is inserted, a considerable number of GPU rig owners seem to suffer from loss of profits, and some are even forced to switch to other networks
"in the white paper, ETH must have ASIC resistance. I would like to say that the white paper stands for something "is one of the highest comments on the AR / ethermining topic about the topic discussed when antminer E3 was announced. Another reddit user argued that "the $800 only applies to 180mh."“ Split or die of a nation. "
some Ethereum users continue to suggest that bitmain's mining devices can lead to greater concentration, thus increasing the possibility of attack by 51%. Soon, a group of developers put forward "programmed workload proof" or progpow, which is an extension of the current Ethereum algorithm ethash, aiming to make GPU more competitive and promote decentralization
according to a paper published in March by Kristy Leigh Minehan, co-founder of progpow, about 40% of the hash rate of Ethereum is generated by bitmain ASIC. Alejandro de la Torre, the vice president of poolin, is the sixth largest pool of eth. He confirmed to cointegration that "GPU mining is still dominant" in Ethereum network, and added:
"at present, the profit of eth mining is not high, and the management threshold and cost of GPU equipment are higher than ASIC equipment. Compared with ASIC devices, GPU devices are more flexible, and you can use other algorithms to switch to other coins. "
progpow has not been integrated into Ethereum, and it is not clear when it will be finally implemented - in March, Ethereum core developers were debating whether progpow will really benefit the network in nearly two hours, and failed to reach a consensus. It is worth noting that a bitmain representative has previously told cointegraph that the mining hardware giant does not intend to extend the service life of antminer E3 to start operation after October 2020: "as far as we know, mining will end in October or some time after that."
a safe but uncertain future
indeed, Ethereum will stay away from mining in the future. Ethereum 2.0, which is planned to be launched later in 2020, is a major network upgrade on the blockchain, aiming to transfer its current POW consensus algorithm to a virtual POS (known as "block verifier")
more specifically, users are randomly selected considering their wealth in the network or their "interests". In other words, the more coins a POS verifier chooses to put in, the more coins accumulated as a reward
according to vitalik buterin, the co-founder of Ethereum, e to the transition, the network will be more secure and the attack cost will be higher than the network of bitcoin, although the debate about the better consensus algorithm in the encryption community has lasted for many years. However, it is not clear when to start Ethereum 2.0, as many errors and management issues are reported to be delaying the process
another hypothetical benefit of POS system is that it has higher energy efficiency than pow blockchain. According to digiconomist, the cryptocurrency's total annual footprint is 59.31 terawatts per hour, which is comparable to the electricity consumption of Greece as a whole. However, since a report in July 2019 estimated that 74% of the exploitation of bitcoin was done using renewable energy, the environmental impact of bitcoin does not seem to be so serious
what will happen to the actual Ethereum miner? According to the documentation of Casper upgrade as part of Ethereum 2.0 roadmap, the network will initially support a hybrid model including both POW and POS, thus providing some space for block verifiers and GPU / ASIC miners. Jack O & 39, CEO of skale network; "There will definitely be a transition period when two networks are running at the same time," Holleran told cointegration The CEO of scale network (based on Ethereum's blockchain platform) gave a detailed description of this process:
"the transition from eth1 to eth2 takes time of course - it may be years rather than months. The good news about this slow transition is that dapps and defi platforms will be able to roam around based on survivability, security and real-world evidence of adoption. This is a positive impact on the Ethereum ecosystem. "
dig or not
once Ethereum is fully in the POS orbit, miners will have two options. One is to sell the equipment and use the money to accumulate more Eth and start mortgage. The other is the choice for GPU miners, which is simply switching to other ethash networks and mining counterfeit money. Nick foster, a representative of kabombacks, a US mining equipment dealer, told cointegration that most eth miners would choose the latter:
"what I want to say is that most of the miners have not really entered Ethereum or the mining of specific tokens. Yes, there is a certain amount of mineral deposits and holds, but I oppose the view that a large number of Shanzhai coin miners hold their coins at any time. "<
foster then described how he used 3gb GPU units to mine ethash's point-to-point blockchain asset ravencoin (RVN). Once it was unable to mine eth, he said, "this is the reason for mining crows. I immediately sold stability to BTC, and then sold it to US dollars to pay for my rights. I would say that a lot of people are adopting this strategy. "
as foster concludes, he wants eth miners to jump out of the network, and new players - those who don't invest in power infrastructure or drilling rigs - will take a stake in eth. He described the following:
"I can't imagine if I found a five-year lease with $0.04 of electricity and I was mining eth, I decided to sell everything and then continue to pay the rent so that I could hold eth as a share. Substitute. "
Marc fresa, founder of asic.to, a mining firmware company, agreed in a conversation with cointegraph: "if you invest in mining, you won't bet because you have enough room to grow."
one of the main counterfeit coins that may benefit from POW miners leaving Ethereum is Ethereum classic (etc), which is a more conservative version of the blockchain. It is reported that there is no POS related plan. As it also runs on the ethash algorithm, the startup of Ethereum 2.0 may lead to the migration of miners, so its hash rate may have a significant peak
eth's larger pools have similar options. When asked about the company's plans for Ethereum after pow, Heller told cointegraph that after the announcement of Ethereum's POS upgrade, f2pool launched a sister company called story.fish in early 2018. Story.fish has started to provide mortgage services for other POS and delegated POS projects, such as tezos (xtz), Cosmos (atom) and Cardano (ADA), e to numerous handover delays. For prin, e to the transition to POS, it "may temporarily give up supporting eth mining," de la Torre told cointegraph
other top eth pools, namely nanopool, ethermine, pool center, sparkpool and spiderpool, did not respond to requests for comment from cointegraph.
after Ethereum is upgraded to version 2.0 POS mechanism, miners may switch mining machines to other networks
as Ethereum is finally ready to start its Ethereum 2.0 upgrade later this year, thus eliminating the long-term delay, the network will start to move towards the proof of rights model
therefore, the network will give up the workload proof consensus algorithm, so that eth miners have little choice. As their equipment will become obsolete, they will be forced to start mining counterfeit coins or re qualify as eth mortgagors. So, what is the current situation of Ethereum mining? With the coming transition, what will happen to the whole instry< At present, Ethereum consensus is based on POW system, which is similar to bitcoin (BTC). As a result, Ethereum's mining process is almost the same, as miners use their computing resources to earn rewards for each block they try to complete< However, there are still major differences between these processes. Although bitcoin mining has relied almost entirely on ASIC (large, loud machines designed specifically for cryptocurrency mining, most of which are concentrated in areas with low electricity prices), Ethereum's pow hash algorithm ethash is designed to support global chip manufacturers (such as NVIDIA and AMD). As Thomas Heller, global business director of cryptocurrency mining pool f2pool, explained in a conversation with cointegraph, GPU is much cheaper and easier to access than ASIC
"as ASIC is a very professional machine, when a new generation of procts is released, it is usually a huge technological leap. As a result, they have a much higher hash rate and are more energy efficient than the previous generation. This means that those manufacturers have spent a lot of money to research and develop it. Their machines are usually very expensive, and GPUs are much cheaper. "
Heller added that those who use GPU miners "have more flexibility to mine." For example, the popular NVIDIA geforce GTX 1080 Ti card can mine more than 15 different currencies, while ASIC units usually support only one currency
nevertheless, Ethereum is not completely immune to ASIC miners - at least in its current state. In April 2018, bitcontinent released antminer E3, an ASIC specially proced for mining Ethereum. Although widely praised for its hash rate of 180 megahashes per second and power consumption of 800 watts, it has received different responses from the Ethereum community. After the ASIC is inserted, a considerable number of GPU rig owners seem to suffer from loss of profits, and some are even forced to switch to other networks
"in the white paper, ETH must have ASIC resistance. I would like to say that the white paper stands for something "is one of the highest comments on the AR / ethermining topic about the topic discussed when antminer E3 was announced. Another reddit user argued that "the $800 only applies to 180mh."“ Split or die of a nation. "
some Ethereum users continue to suggest that bitmain's mining devices can lead to greater concentration, thus increasing the possibility of attack by 51%. Soon, a group of developers put forward "programmed workload proof" or progpow, which is an extension of the current Ethereum algorithm ethash, aiming to make GPU more competitive and promote decentralization
according to a paper published in March by Kristy Leigh Minehan, co-founder of progpow, about 40% of the hash rate of Ethereum is generated by bitmain ASIC. Alejandro de la Torre, the vice president of poolin, is the sixth largest pool of eth. He confirmed to cointegration that "GPU mining is still dominant" in Ethereum network, and added:
"at present, the profit of eth mining is not high, and the management threshold and cost of GPU equipment are higher than ASIC equipment. Compared with ASIC devices, GPU devices are more flexible, and you can use other algorithms to switch to other coins. "
progpow has not been integrated into Ethereum, and it is not clear when it will be finally implemented - in March, Ethereum core developers were debating whether progpow will really benefit the network in nearly two hours, and failed to reach a consensus. It is worth noting that a bitmain representative has previously told cointegraph that the mining hardware giant does not intend to extend the service life of antminer E3 to start operation after October 2020: "as far as we know, mining will end in October or some time after that."
a safe but uncertain future
indeed, Ethereum will stay away from mining in the future. Ethereum 2.0, which is planned to be launched later in 2020, is a major network upgrade on the blockchain, aiming to transfer its current POW consensus algorithm to a virtual POS (known as "block verifier")
more specifically, users are randomly selected considering their wealth in the network or their "interests". In other words, the more coins a POS verifier chooses to put in, the more coins accumulated as a reward
according to vitalik buterin, the co-founder of Ethereum, e to the transition, the network will be more secure and the attack cost will be higher than the network of bitcoin, although the debate about the better consensus algorithm in the encryption community has lasted for many years. However, it is not clear when to start Ethereum 2.0, as many errors and management issues are reported to be delaying the process
another hypothetical benefit of POS system is that it has higher energy efficiency than pow blockchain. According to digiconomist, the cryptocurrency's total annual footprint is 59.31 terawatts per hour, which is comparable to the electricity consumption of Greece as a whole. However, since a report in July 2019 estimated that 74% of the exploitation of bitcoin was done using renewable energy, the environmental impact of bitcoin does not seem to be so serious
what will happen to the actual Ethereum miner? According to the documentation of Casper upgrade as part of Ethereum 2.0 roadmap, the network will initially support a hybrid model including both POW and POS, thus providing some space for block verifiers and GPU / ASIC miners. Jack O & 39, CEO of skale network; "There will definitely be a transition period when two networks are running at the same time," Holleran told cointegration The CEO of scale network (based on Ethereum's blockchain platform) gave a detailed description of this process:
"the transition from eth1 to eth2 takes time of course - it may be years rather than months. The good news about this slow transition is that dapps and defi platforms will be able to roam around based on survivability, security and real-world evidence of adoption. This is a positive impact on the Ethereum ecosystem. "
dig or not
once Ethereum is fully in the POS orbit, miners will have two options. One is to sell the equipment and use the money to accumulate more Eth and start mortgage. The other is the choice for GPU miners, which is simply switching to other ethash networks and mining counterfeit money. Nick foster, a representative of kabombacks, a US mining equipment dealer, told cointegration that most eth miners would choose the latter:
"what I want to say is that most of the miners have not really entered Ethereum or the mining of specific tokens. Yes, there is a certain amount of mineral deposits and holds, but I oppose the view that a large number of Shanzhai coin miners hold their coins at any time. "<
foster then described how he used 3gb GPU units to mine ethash's point-to-point blockchain asset ravencoin (RVN). Once it was unable to mine eth, he said, "this is the reason for mining crows. I immediately sold stability to BTC, and then sold it to US dollars to pay for my rights. I would say that a lot of people are adopting this strategy. "
as foster concludes, he wants eth miners to jump out of the network, and new players - those who don't invest in power infrastructure or drilling rigs - will take a stake in eth. He described the following:
"I can't imagine if I found a five-year lease with $0.04 of electricity and I was mining eth, I decided to sell everything and then continue to pay the rent so that I could hold eth as a share. Substitute. "
Marc fresa, founder of asic.to, a mining firmware company, agreed in a conversation with cointegraph: "if you invest in mining, you won't bet because you have enough room to grow."
one of the main counterfeit coins that may benefit from POW miners leaving Ethereum is Ethereum classic (etc), which is a more conservative version of the blockchain. It is reported that there is no POS related plan. As it also runs on the ethash algorithm, the startup of Ethereum 2.0 may lead to the migration of miners, so its hash rate may have a significant peak
eth's larger pools have similar options. When asked about the company's plans for Ethereum after pow, Heller told cointegraph that after the announcement of Ethereum's POS upgrade, f2pool launched a sister company called story.fish in early 2018. Story.fish has started to provide mortgage services for other POS and delegated POS projects, such as tezos (xtz), Cosmos (atom) and Cardano (ADA), e to numerous handover delays. For prin, e to the transition to POS, it "may temporarily give up supporting eth mining," de la Torre told cointegraph
other top eth pools, namely nanopool, ethermine, pool center, sparkpool and spiderpool, did not respond to requests for comment from cointegraph.
6. 1. Digital currency is abbreviated as digiccy, which is the abbreviation of "digital currency" in English. It is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy
2. Digital currency is a kind of unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of specific virtual communities. The European Banking authority defines virtual currency as a digital representation of value, which is not issued by the central bank or authorities, nor linked with legal currency. However, because it is accepted by the public, it can be used as a means of payment, or it can be transferred, stored or traded in electronic form
response time: January 4, 2021. 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. Digital currency is a kind of unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of specific virtual communities. The European Banking authority defines virtual currency as a digital representation of value, which is not issued by the central bank or authorities, nor linked with legal currency. However, because it is accepted by the public, it can be used as a means of payment, or it can be transferred, stored or traded in electronic form
response time: January 4, 2021. 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
7. BP neural network has the ability of arbitrary complex pattern classification and excellent multi-dimensional function mapping, which solves the exclusive or (XOR) and some other problems that can not be solved by simple perceptron. In structure, BP network has input layer, hidden layer and output layer; In essence, BP algorithm takes the square of network error as the objective function, and uses the gradient descent method to calculate the minimum value of the objective function.
8. According to the relationship between digital currency and real economy and real currency, it can be divided into three categories:
one is completely closed, has nothing to do with real economy and can only be used in specific virtual communities, such as world of warcraft gold
Second, it can be purchased in real currency but not converted back to real currency, which can be used to purchase virtual goods and services, such as Facebook credit
thirdly, it can be exchanged and redeemed with real currency according to a certain ratio. It can purchase both virtual goods and services and real goods and services, such as bitcoin [2]
transaction mode
at this stage, digital currency is more like an investment proct, because of the lack of a strong guarantee agency to maintain its price stability, its role as a value measure has not yet appeared, and it can not be used as a means of payment. As an investment proct, digital currency cannot develop without trading platform, operating company and investors
trading platforms act as trading agents, and some of them act as market makers. The profits of these trading platforms come from investors' transaction or withdrawal fees and premium income from holding digital currency. Bitstamp, gathub, ripple Singapore, snapswap, Japan's Mt. GOx and China's new star Ruihu are the platforms with large trading volume [4]
the process of digital currency trading through the platform is as follows:
(1) investors should first register their accounts and obtain digital currency accounts and US dollar or other foreign exchange accounts
(2) users can buy and sell digital currency with the money in their cash account, just like buying and selling stocks and futures
(3) the trading platform will sort the buy requests and sell requests according to the rules and start to match them. If they meet the requirements, the transaction will be concluded
(4) a buy or sell request may be partially executed e to the difference between the buy and sell volumes submitted by users.
one is completely closed, has nothing to do with real economy and can only be used in specific virtual communities, such as world of warcraft gold
Second, it can be purchased in real currency but not converted back to real currency, which can be used to purchase virtual goods and services, such as Facebook credit
thirdly, it can be exchanged and redeemed with real currency according to a certain ratio. It can purchase both virtual goods and services and real goods and services, such as bitcoin [2]
transaction mode
at this stage, digital currency is more like an investment proct, because of the lack of a strong guarantee agency to maintain its price stability, its role as a value measure has not yet appeared, and it can not be used as a means of payment. As an investment proct, digital currency cannot develop without trading platform, operating company and investors
trading platforms act as trading agents, and some of them act as market makers. The profits of these trading platforms come from investors' transaction or withdrawal fees and premium income from holding digital currency. Bitstamp, gathub, ripple Singapore, snapswap, Japan's Mt. GOx and China's new star Ruihu are the platforms with large trading volume [4]
the process of digital currency trading through the platform is as follows:
(1) investors should first register their accounts and obtain digital currency accounts and US dollar or other foreign exchange accounts
(2) users can buy and sell digital currency with the money in their cash account, just like buying and selling stocks and futures
(3) the trading platform will sort the buy requests and sell requests according to the rules and start to match them. If they meet the requirements, the transaction will be concluded
(4) a buy or sell request may be partially executed e to the difference between the buy and sell volumes submitted by users.
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