Price of mining machinery
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
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
This suggests that you find more online, each service and configuration should be different
blockchain is a term in the field of information technology. In essence, it is a shared database. The data or information stored in it is characterized by "unforgeability", "trace in the whole process", "traceability", "openness and transparency" and "collective maintenance". Based on these characteristics, blockchain technology has laid a solid "trust" foundation, created a reliable "cooperation" mechanism, and has broad application prospects
on January 10, 2019, the state Internet Information Office issued the regulations on the management of blockchain information services. In October 24, 2019, ring the eighteenth collective learning of the Central Political Bureau, general secretary Xi Jinping stressed that "block chain as an important breakthrough in core technology and independent innovation", "accelerating the development of block chain technology and instrial innovation". "Blockchain" has entered the public field of vision and become the focus of social attention
on December 2, 2019, the word was selected into the top ten catchwords of "biting words" in 2019
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Application of blockchain Finance:
since 2016, the major financial giants have also carried out blockchain innovation projects to explore the possibility of applying blockchain Technology in various financial scenarios. In particular, Puyin group took the lead in creating a "blockchain +" standard digital currency
standard digital currency refers to the process of assets identification, evaluation, right confirmation and insurance completed by a third party organization, which is written into the blockchain through careful digital algorithm to form the standard corresponding relationship between assets and digital currency, which is called standard digital currency
in order to realize the great leap forward development of blockchain finance, promote the new development of China's economy, accelerate the circulation of global assets, and realize the dream of rejuvenation that has been struggling for generations, Puyin group will hold the Guiyang strategic development ceremony of Puyin blockchain finance in Guizhou on December 9, 2016
the meeting will discuss the realization of digital circulation of assets by blockchain, the financial transaction mode of blockchain, and the application of blockchain services and social public instry. This conference will mark the beginning of the application of blockchain finance and the change and development of the new financial ecology
has two main advantages compared with windows
(1) stable system: for example, it is very common for a host with Linux to run continuously for more than one year without downtime or shutdown. My windows system turned on black screen this morning, and then recovered after forced shutdown
(2) fast repair of security and vulnerability: Linux is used by many computer experts, so there are many maintainers, and the update and maintenance is fast, while windows is used by everyone, and it is not open source
therefore, the core system of mining machine is Linux. At present, more than 95% of the global server market choose Linux, which has been verified for a long time, and windows is not recommended as the operating system< The second key point of mining machine is: hard disk
(1) the number of hard disk bits
IPFs is storage mining, and the mining benefit is directly proportional to the size of storage capacity, so if you want to dig more money, you have to have more hard disk bits, and the mining machine with 16 disks and 24 disks is preferred
(2) hard disk installation
if you need to shut down every time you increase or decrease the hard disk, you may not get enough money to be punished and dected. IPFs mining machine needs to work stably, so it must support hot plug
(3) hard disk compatibility
supports the mixed insertion of different brands and capacities of hard disks, which can be collocated at will according to their own needs. Only by making full use of the capacity of hard disks can we maximize the revenue
the third key point of mining machine: CPU, motherboard
CPU and motherboard should be able to point out the actual working situation of multiple hard disks, and the hardware collocation should be reasonable. For example, the configuration can only support 4T multiple hard disks. If multiple 8t hard disks are inserted, it will lead to a small horse pulling a cart, causing a crash and burning the hard disk, motherboard, CPU, etc. Therefore, the hardware configuration should be rendant, and about 8t hard disk storage space should be reserved< Key points of Miner: built in mining software
the performance of built-in mining software is better, otherwise the miner's mining situation can't be well connected with the main chain, and the main chain can't read the miner's work well, resulting in data loss and mapping data error. For example, if you save 20t and the main chain only reads 10t, you will lose the reward of storing 10t. So the software R & D team must have strength. With the upgrading of technology and the analysis of mining data, software system is also needed to ensure or improve the mining efficiency.
See a lot of people selling bitcoin mining machines, why don't they go mining? Do they make more money selling machines than digging bitcoin
On the gold road, the most profitable is the ticket. Those who dig money are all gold miners. Mining machine manufacturers are those who sell water and shovels on the way to gold mining. The so-called saying is that they have heard the news one after another, and they specialize in the technology instry. It's OK to do a good job in their own specialty. They can't earn any moneythe purpose of enterprises is to make money. Since selling mining machines can make money, why should they be involved in the mining instry. Wu Jihan in mainland China is worth tens of billions of yuan only by selling mining machines, and he is engaged in large-scale mining in many countries. It's also very limited. Since selling equipment can make money, why do you have to mine
another example is the e-commerce instry. I don't know whether it makes money or not, but I know that agent operation must make a lot of money. Now the hot small program, businesses through small programs to earn money, I do not know, but those who help develop small programs companies must make money
You can earn about 0.36 diamonds every day. You can increase honor value and activity by constantly buying mining machines
Note:
1. After the transaction is matched, the buyer needs to pay within 2 hours and upload the payment voucher to confirm the payment. If the payment is not made within 2 hours, the transaction will be cancelled automatically and the diamond will be returned to the seller's account. The system will ban the buyer's account number by 1 day / 3 days / 1 month
2. After the transaction is matched, the buyer pays and uploads the screenshot of the payment. If the seller does not confirm to send diamonds in time, the system will automatically divide the transaction diamonds into the seller's account after 2 hours, and dect 10% of the diamonds from the seller's transaction, and the buyer will get a certain proportion of the seller to dect diamonds
3. After the transaction is matched, if the buyer uploads a false transaction voucher and the seller submits a complaint, the transaction order will be frozen, and the seller will appeal / contact customer service. After verification, it is confirmed that the buyer has not paid as required, the transaction order will be cancelled and the diamond will be returned to the seller's account
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process of selling diamonds in fun bar:
1. Open fun bar app on mobile phone to enter software
1. Why is money the proct of the internal contradiction of commodity economy
1) the contradiction between private labor and social labor: the private nature of labor determines that the procts belong to private ownership, but the procts are not or mainly for the consumption of procers themselves, but for other members of society. Therefore, private procts must be included in the total social procts for distribution
2) the successful transformation of private labor into social labor can only be realized through commodity exchange
3) value can not express itself, only in the exchange of two kinds of commodities, it can be expressed through another kind of commodity. In this way, the value in commodity exchange must require the expression of value, and there must be the expression form of commodity value, which is called value form
3. What are the characteristics of the typical gold standard? What role did it play in the development of capitalism in history
1. It can melt freely and cast freely to keep stable circulation
2. Coins and bank notes can be exchanged with gold coins and circulated according to nominal value
3. Gold coins can be exported into the country freely
function: the gold standard is a relatively stable monetary system, which makes the domestic value of currency consistent with the international value. The foreign exchange market is relatively stable and will not cause currency devaluation, which has greatly promoted the development of capitalist economy and the expansion of international trade
4. Characteristics of the paper currency standard system:
the above are some of the answers. You can download more answers from the forum of Shanghai University of Finance and economics.
IPFs is a point-to-point distributed file system, dedicated to replace http
the difference between IPFs and HTTP
< UL >Security: http is centralized, and all traffic is directly carried on the centralized server, which carries great pressure and is easy to cause system crash. HTTP is also vulnerable to DDoS attacks; The storage mode of IPFs is decentralized and partitioned distributed storage, which can not be attacked by hackers, files are not easy to be lost, and security is guaranteed
efficiency: http relies on the centralized service network, so the server is easy to be shut down and the files on the server are easy to be deleted. The server needs to be turned on 24 hours; IPFs adopts P2P network topology, all computers in the whole network can become storage nodes, and the nearby distributed storage greatly improves the network efficiency
cost: http centralized server needs high maintenance cost. Once the centralized database is attacked by DDoS or damaged by force majeure, all data will be lost; IPFs greatly reces the cost of server storage and bandwidth
the vast majority of HTTP customers' network access is not localized, and there are network delays. IPFs can greatly speed up the speed of network access, and the sense of experience will be significantly improved with the localization of network access
usage scenarios of IPFs:
as a mounted global file system, mounted in IPFs and IPNs
as a mounted personal synchronization folder, version management and publishing are automatically performed, As an encrypted file or data sharing system, as the version package manager of all software, as the root file system of virtual machine, as the boot file system of VM, as a database, applications can write data directly to Merkle da In G data model, obtain all versions, buffers, and IPFs provided allocation
as a linked (and encrypted) communication platform
as a CDN for integrity check of large files (without SSL)
as an encrypted CDN
on Web pages, As a web CDN
as a link, there will always be a new and eternal web
to learn more about IPFs, please pay attention to our website: ipfser.org
< / UL >Alibaba has recently launched a virtual currency mining platform "P2P node". According to the terms of the service agreement of the platform, the main operator of the platform is Alibaba East China Co., Ltd. It is reported that the company completed its registration on October 10, 2017, and its registered address is located in Nanjing
at present, we have not yet known the intention behind Alibaba's move. When major platforms generally enter the blockchain ICO market, Alibaba has access to third-party platforms. Compared with blockchain projects with weak data base, Alibaba has accumulated experience to catch up with and surpass the current blockchain technology