Cheating detection of ore pool
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at present, according to the official income method of fil, there are three ways: one is to provide hard disk storage to obtain income (storage miner), the other is to provide bandwidth resources to obtain retrieval income (retrieval miner), and the third is mining and packing block income (storage miner). Based on the above rules, only enterprise level and cloud mine pool can meet the three kinds of income at present
In terms of configuration, based on mining rules, the following configuration suggestions are given:CPU: 4 cores or above, Inteli series is the best, memory is at least 8g, if you want to get retrieval revenue, memory needs more than 16g, hard disk space is recommended to be more than 4T to get storage revenue
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household mining machine (current situation analysis, There are the following disadvantages:
A. more than 95% of domestic IP addresses are not static, which leads to mining default platform withholding pledge tokenB. you need to buy pledge token, and you need to spend some extra money to buy token to start
C. the sound of power outage is loud, and the events affecting neighbors lead to no income
D. unfortunately, your family is in the second, third, fourth and fifth tier cities, Basically, we can't get the order
e. the home miner advertised by a Yingkuang machine can't mine and can be retrieved. The retrieval needs an uplink bandwidth of at least 10m, and the space-time proof (IPFs anti cheating mechanism) may need a higher stable bandwidth of more than 20m. Who's community's network can meet the above requirements within 24 hours, so the retrieval is also very difficult
It is said that the investors who started brainwashing and bought the household miner in March of 18 bought a small box at 5-10 times the price and put it at home as a decoration, so the household miner is used to cut leeks, because it has a low threshold, and then you can hardly dig fil -
Enterprise trusteeship miner
a, In terms of hardware configuration, the cost of setting up a mine is relatively high. If the leasing meets the national application conditions, the purchase price of a single configuration combination is about 3-10 times of the cost price, which is relatively high
B. the same computer room is generally leased to multiple enterprises for storage and application, which will lead to multiple operating systems running at the same time, Lack of unity, easy to be attacked by hackers
C. vicious competition of all mining machines in the mine, internal consumption of computing power, unbalanced order distribution, resulting in some machines grabbing orders and some machines not having orders, and Unbalanced Income
D. different independent IPFs mining machine systems, it is difficult to unify parameter grabbing orders in real time
E. unable to resist regional policy risks, For example, the national policy risk
F. the biggest advantage of enterprise level is high configuration, centralized basic management, and room conditions are superior to household mining machines. At the same time, the above situation is accompanied by
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cloud mining pool
A. computing power leasing, the price is relatively low for hosting mining machines, The leasing time is controllable
B. the IDC rooms of general cloud mine pool are defense class, which can prevent hackers from intruding
C. the output of the mine pool is shared throughout the network, and there is no worry about the failure of a purchased node, and there is no income
D. the hardware input is allocated throughout the network, and the personal input-output ratio is cost-effective
E. unified scale management, and there is no single node debugging, Single maintenance status
D. node layout is generally multi city and multi country, regional policy risk
E. third party real-time monitoring, high degree of information disclosure, always know the output status of ore pool
F. unified operation and maintenance system, real-time unified parameter adjustment, pricing strategy, order grabbing strategy, storage strategy
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for the above analysis, At present, the existing cloud mining pools in China, such as a cat cloud mining pool, a Yingyun node, an inter cloud mining pool, and a chain cloud mining pool, claim to be globally distributed in the publicity. After actual verification, their mining pools are either small private mines established by themselves or professional mining machine trusteers cooperated in China, and most of them are limited to China, Because the construction cost of the mine pool is very high, and the cost of cooperation with domestic cloud service providers is even higher, we should set up our own small mine pool to publicize the global layout
currently, it is recommended to learn about "Noah cloud pool". After verification, the channel cloud service providers of Noah cloud pool are currently cooperating in Hong Kong, Singapore, Germany and Poland, and their technical background is relatively strong. Please check other relevant information
bitcoin mining machine is a kind of computer used to earn bitcoin. This kind of computer generally has professional mining chips and works in the way of burning graphics card, which consumes a lot of power. It is one of the ways to get bitcoin that users download software from personal computer and then run specific algorithm to get corresponding bitcoin after communicating with remote server
mining is actually a competition of performance and equipment, and a competition of computing power among miners. Miners with more computing power are more likely to dig bitcoin. With the increase of computing power in the whole network, it is more and more difficult to dig bits with traditional devices (CPU, GPU). People have developed chips specially used for mining. Chip is the core part of mining machine. The process of chip operation will proce a lot of heat, in order to cool down, bitcoin miner is generally equipped with heat sink and fan
< H2 > extended materials:
bitcoin is a kind of virtual currency. Bitcoin mining system is the process of carrying out mathematical operation for bitcoin network through computer hardware. Miners who provide services can get a reward, because the network reward is calculated according to the tasks completed by miners, so the competition for mining is very fierce
bitcoin mining started with low-cost hardware such as CPU or GPU, but with the popularity of bitcoin, the mining process has changed greatly. Nowadays, the mining activities are transferred to the field programmable gate array, and the hash speed can be achieved through optimization. The mining efficiency of this mode is very high
the miner continuously detects the availability of the standby mine pool, During this period, the main ore pool has been connected, so it will not affect your mining income.
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:
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
if the server hardware is ready and working properly, use the ping command to check the network connectivity between other in use and available computers or routers (such as its default gateway) on the same network as the affected DNS server
many users like to use two screens, especially programmers, game players, video procers and so on. It can be said that the two screens display and the game work together. So what's the use of setting up al screen display or multi screen display? How to set up al or multi screen display? Here is a brief introction to its function and specific operation method
What are the advantages of al screen display (computer)
1. Large screen splicing
(splicing computer graphics, splicing dynamic video) projection wall; Command and dispatch systems for public security, military, railway, transportation, aerospace, posts and telecommunications, satellite launching, etc; Graphics and image editing, 3D animation, multimedia design; Process control in instrial field; Information display of securities trading, futures and banks; CAD / CAM design, typesetting editing system, video image editing
2. File editing:
when making planning documents, you should also refer to and search for relevant network information, so as to avoid data confusion caused by switching windows
3. Drawing editing:
when using the drawing software to design a case, the reference document window can be opened at the same time, and the desktop can also be extended to facilitate the processing of large-scale design draft proction, which does not overlap with the proofreading window
4. Film and television entertainment:
(1) watch Internet TV and browse the program introction of other channels at the same time, so that you can not miss the wonderful programs
(2) when playing online games, you can synchronously compare the secret skills of the game strategy< 5. Office:
(1) view large tables (such as Excel charts) across more than two screens
(2) to open multiple programs on the extended desktop space at the same time, there is no need to switch the windows frequently
(3) read the email and open the attachment file on other screens at the same time
6. Program design:
when writing a complex program, another window can view the program execution result screen at the same time to facilitate updating and modification
these are the advantages of al screen computers. Do you know something about al screen computers now? See small make up for everybody to enumerate is the advantage of double screen computer is a little bit excited? Let's take a look at how to set it<
1. Hardware requirements (take win10 system as an example)
1. The computer host must have any two-way output independent graphics interface of VGA / DVI / HDMI (generally supported by entry-level graphics card), as shown in the figure below:
2. Prepare any two VGA / DVI / HDMI cables, and the appearance diagram of the corresponding connection cable of the display output interface is as follows:
3. Two monitors, Support any two interfaces of VGA / DVI / HDMI (otherwise VGA converter connector is needed)
2. Operation steps of al screen
1. First, connect the external display and computer graphics card interface through any two cables of VGA / DVI / HDMI
2. After the connection is successful, enter the desktop of the computer system, right-click the blank space of the desktop, and select display settings
3. If the connection is successful, you can see that there are two displays
4. In the display interface, select expand these displays under multi display settings, and then the two displays can be displayed normally
5. If the line detection is OK and still can't be displayed, right-click the desktop and select NVIDIA control panel
6. Find [set multiple monitors], and then check the monitor we want to use<
3. Multi screen display method
hardware requirements:
in addition to supporting al screen hardware conditions, some computers need to enter BIOS settings to find relevant options. If it cannot be found, it means that the motherboard does not support it, please refer to the following operation
steps to enter BIOS:
1. Turn on the computer to enter BIOS, find the options of [devices] - VIDEO setup], and click enter
2. Select the select active video option and set it to IgD mode, and set the multi monitor support option to enabled mode
3. After setting, click F10 and select Yes to save
4. After restarting the operating system, right-click in the blank space of the desktop, find the integrated graphics card console program from the menu, and set the multi screen display.