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Bitcoin machine network positioning

Publish: 2021-04-23 01:32:50
1.

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

2. In order to understand the technical principle of bitcoin, we need to understand two important cryptographic techniques: hash code: it converts a long string into a fixed length string, and its conversion is irreversible, that is, it is impossible to guess the original string from hash code. Sha256 is mainly used in bitcoin protocol
public key system: corresponds to a public key and a private key, keeps the private key in the application and publishes the public key. When Party A transmits information to Party B, it can use Party A's private key to encrypt the information, and Party B can use Party A's public key to decrypt the information, so as to ensure that the third party cannot impersonate Party A to send the information; At the same time, when Party A transmits information to Party B, it is encrypted with Party B's public key and sent to Party B, and then Party B decrypts it with his own private key, so as to ensure that the third party cannot eavesdrop on the communication between the two people. RSA is the most common public key system, but the lliptic curve digital signature algorithm is used in bitcoin protocol. What's the difference between cash and bank account? Bitcoin is an electronic currency in BTC. In this article, it is also used to refer to the whole bitcoin system. Like opening an account in a bank, the corresponding concept in bitcoin is address. Everyone can have one or more bitcoin addresses, which are used to pay and collect money. Each address is a string that starts with 1. For example, I have two bitcoin accounts, and. A bitcoin account is uniquely determined by a pair of public key and private key. To save the account, you only need to save the private key file. Unlike bank accounts, banks keep all transaction records and maintain the book balance of each account, while bitcoin's transaction records are jointly maintained by the whole P2P network through a pre agreed protocol. How much money is in my account address? Although the current account balance can be seen by bitcoin software, unlike banks, there is no place to maintain the book balance of each address. It can only calculate the account balance in real time through all historical transactions. How do I pay? When I pay from address a to address B of the other party, the payment amount is e. at this time, both parties will announce the transaction information to each network node, telling address a to pay to address B, and the payment amount is e. In order to prevent the third party from forging the transaction information, the transaction information will be encrypted with the private key of address A. at this time, the network node receiving the transaction information can use the public key of address a to verify that the transaction information is indeed sent by address a. Of course, trading software will help us do these things, we just need to input the relevant parameters in the software. What will the network node do after receiving the transaction information? This is the most important part of the bitcoin system, which needs to be elaborated. For the sake of simplicity, only bitcoin protocol has been implemented. In the current version, each network node will save all transaction information synchronously. There are two kinds of transaction information in history, one is & quot; Verified & quot; The transaction information, that is, the verified transaction information, is stored in a series of "blocks". Each & quot; block" Is the previous & quot; bock" The ID of each block is the hash code of the hash code of the block and the new transaction information (see an actual block). The other category refers to those who also & quot; Unverified & quot; The transaction information just paid above belongs to this category. When a network node receives new unverified transaction information (possibly more than one), it can calculate the book balance of each address at that time because the node keeps all the transaction information in history, so it can calculate whether the transaction information is valid, that is, whether there is enough balance in the payment account. After eliminating the invalid transaction information, it first takes out the last & quot; block" Then, the unverified transaction information is combined with the ID, and a verification code is added to form a new "block". It needs a lot of calculation to build a new block, because it needs to calculate the verification code, so that the above combination becomes a block, that is, the first several bits of the hash code of the block are 1. At present, the first 13 bits need to be 1 (generally, the specific method is uncertain), which means that if the block is generated by enumeration method, the average number of enumerations is 16 ^ 13. Using CPU resources to generate a block is called "gold mining", because the proction of the block will get a certain reward, and the reward information has been included in the block. When a network node generates a new block, it will broadcast to other network nodes. However, this network block may not be accepted by the network, because it is possible that other network nodes have proced the block earlier. Only the earliest block or the block with the largest number of subsequent blocks is valid, and the remaining blocks are no longer used as the initial blocks of the next block. How does the other party confirm that the payment is successful? When the payment information is distributed to the network node, the network node begins to calculate whether the transaction is valid (that is, whether the account balance is enough to pay), and attempts to generate blocks containing the transaction information. When six blocks (one direct block and five subsequent blocks) contain the transaction information, the transaction information is considered "verified", so that the transaction is formally confirmed, and the other party can confirm the successful payment. A possible problem is that I will pay the balance of address a to address B, and at the same time pay to address C. If I only verify that the single comparison transaction is valid. At this point, my way of cheating is to generate six blocks including B to B and six blocks including C to C before the truth is revealed. Because I need a very long CPU time to generate a block, compared with the whole network, the probability of my cheating success is very small. What is the motivation of network nodes to proce blocks? As can be seen from the above description, in order to make the transaction information effective, the network node needs to generate 1 and 5 subsequent blocks to contain the transaction information, and such block generation is very CPU intensive. How to let other network nodes help to proce blocks as soon as possible? The answer is very simple. The agreement stipulates that BTC will be rewarded for the address where the block is proced, as well as the Commission promised by both parties. At present, the reward for procing a block is 50btc, which will be halved every four years in the future. For example, the reward will be 25btc from 2013 to 2016. Is the transaction anonymous? Yes, and No. All bitcoin transactions are visible. We can check all transaction records of each account, such as mine. But what's different from the banking monetary system is that everyone's account itself is anonymous, and everyone can open many accounts. In general, anonymity is not as good as it claims. But bitcoin has another advantage in doing black market trading: it can't be frozen. Even if the police trace a bitcoin address, there is nothing they can do unless they trace the computer used by the exchange based on the Internet address. How to ensure that bitcoin does not depreciate? Generally speaking, in the case of equivalent trading activities, the value of money is inversely proportional to the amount of money issued. Unlike the traditional money market, the central bank can determine the amount of money issued. Bitcoin does not have a central issuing institution. Only by procing blocks can we get a certain amount of BTC currency. Therefore, bitcoin's new amount of money depends on: 1. The speed of procing blocks: bitcoin's agreement stipulates that the difficulty of procing blocks is fixed at an average of 2016 every two weeks, about 10 minutes. Moore's law of doubling CPU speed every 18 months will not speed up the proction of block. 2. The number of rewards for block proction: at present, 50 BTC is awarded for each block proced, which is halved every four years. In 2013, 25 BTC is awarded, and in 2017, 12.5 BTC is awarded. Considering the above two factors, bitcoin's currency issuing speed is not controlled by any single node in the network. Its protocol makes the currency stock known in advance, and the maximum stock is only 21 million BTC
3. Bitcoin is different from the previous currency, it completely relies on the Internet to create and trade; Bitcoin's unique technical attributes lead to its economic and cultural attributes beyond the present currency. Bitcoin is a kind of electronic currency proced by open-source P2P software. Compared with the paper currency in circulation, the biggest feature of bitcoin is decentralization and global circulation in the network world, followed by high security and high confidentiality. These technical attributes further extend to the economic attributes of no inflation, no freezing, and no man-made supply; In terms of culture, bitcoin is popular among anarchists and liberals. The advantages of bitcoin are artificially exaggerated, and its anti inflation and anti inflation functions cannot stand up to scrutiny. In the long run, the prospect of bit is hard to match that of gold. In the most optimistic case, it will become a means of payment in some areas; But in the short and medium term, bit still has room for speculation and imagination. In addition, the use of bitcoin in some sensitive areas highlights the increasingly prominent role of information in national security
1. The advantages of bitcoin are exaggerated: About decentralization, no transaction costs and anti inflation
it is true that bitcoin has various advantages over paper money, but these advantages have been over interpreted. First of all, bitcoin is a kind of decentralized currency, which will not have the same risk of central bank controlling money supply and affecting market value as paper money; Bitcoin is mainly held in the hands of large investors, and the market depth is not enough. At present, the trading behavior of large investors is also very easy to affect the price of bitcoin. Even if the attribute of decentralization is regarded as the advantage of bitcoin when it is fully mature, then the prerequisite of holding decentralization should be added. In addition, there are great differences between centralized and decentralized online payment systems in the degree and type of financial risks they are exposed to
secondly, the low transaction cost of bitcoin is not without transaction cost. On the contrary, e to the increasing difficulty of bitcoin mining and the further stability of currency value, the dependence of relevant transaction platforms on transaction cost will increase, which will certainly increase the transaction cost. Finally, the confidentiality of the bitcoin transaction needs to be discussed. The principle of the bitcoin transaction makes all the processes of each bitcoin transaction stored in each machine. If someone can determine the real background of a transaction, they can find all the transactions down and up through these data
compared with other advantages, anti inflation or anti inflation is the most publicized advantage. Although its supply is stable and the upper limit of supply is locked according to its algorithm, unless the whole world is unified and all countries use bits as currency, it can not prevent the over issuance of money only as a means of payment or a storage of value, just as the current existence of gold can not constrain the growth of each country's currency. If bits can only be used as a means of payment in local areas (such as the network), then global or some countries' inflation will still be transmitted to the areas where bits are used. Therefore, the use of bits to prevent inflation is basically untenable, or has a strong premise. As for anti inflation, that is to say, it has the function of value storage, it needs to have the property similar to gold. However, from the reality, bit's essential property and prospect are still hard to match gold. See below for details
2. Bitcoin's future positioning is too high
the expectation of bitcoin's future in the market generally compares it with gold and US dollar, which is relatively high. The recognition of gold not only lies in its natural physical properties, but also in its official acceptance as a reserve currency (or an important allocation of foreign exchange assets). In theory, bitcoin as an electronic currency does not have the unique and exclusive status, and it is more difficult to become the official reserve of central banks like gold. Therefore, it is not appropriate to expect too much bit. As an electronic currency, bit has the first mover advantage. If it can be guaranteed in terms of security, its most optimistic prospect will be as a means of payment in local areas
3. Speculation and speculative demand caused by event factors are the main reasons for the rise of bitcoin in this round
under the credit currency system, people's lack of confidence in the currencies of various countries and pessimistic economic prospects are the general environment for the rise of bitcoin in this round. The speculation of the major dealers in the market and the derivatives market of bitcoin, together with the speculative psychology of the participants, further accelerated its rise. Btcchina's investment of US $5 million and the announcement of Ben's position are the main driving factors for the recent surge
however, a lot of big players start to enter the market and buy a lot, which not only drives the bit price up to a high level, but also increases the market risk. Chamath, a former Facebook executive, has spent $5 million on bitcoin and plans to spend another $10 million. Bitcoin investment trust also exceeded its target within four weeks, raising $15 million. These people's investments not only make bitcoin further rise, but also concentrate on the holding of bitcoin, which strengthens the influence of indivials and institutions on the price of bitcoin and increases the market risk
4. There is still strong room for speculation in the medium and short term
although our previous analysis is not optimistic about the prospect of bit, it is likely that bit will still have strong room for speculation in such a short and medium term period of time as one year. As mentioned in the previous analysis, the creators of bitcoin advocate that the generation of bitcoin is not manipulated by human factors, which is quite different from the credit currencies of various countries. We expect that the monetary policies of major countries will be divided next year. With the release of economic risks and the heavy damage to traditional asset markets, bitcoin will have better room for speculation and imagination< The use of bitcoin in some sensitive areas highlights the increasingly prominent role of information in national security
the U.S. government seized the drug trading website "Silk Road" at the beginning of last month. A crowdfunding network called "assassination market" even marked the sale of murderers with bitcoin price. The founder of the assassin market, under the pseudonym of kuwabatake Sanjuro, is an extreme anarchist. Both prism gate incident and the use of bitcoin in relevant sensitive fields highlight the increasingly prominent position of information field in national security. The Third Plenary Session proposed the establishment of the national security committee, which will play an important role in China's security strategy and expand from traditional national defense, stability maintenance / urban security to information security and other emerging areas
4. What a big thing
see when it was installed, who contacted the server, and log.
5.

The bitcoin mining machine downloads the mining software and then runs a specific algorithm to get the corresponding bitcoin after communicating with the remote server, so as to obtain the bitcoin

any computer can become a mining machine, but the benefit will be relatively low, and it may not be able to dig a bitcoin in ten years. Many companies have developed professional bitcoin mining machines, which are equipped with special mining chips, and their computing speed is tens or hundreds of times higher than that of ordinary computers

bitcoin miners can neither increase their rewards by cheating, nor deal with the fraulent transactions that destroy the bitcoin network, because all bitcoin nodes will reject the blocks containing invalid data that violate the bitcoin protocol rules. Therefore, even if not all bitcoin miners can be trusted, the bitcoin network is still secure

extended data:

mining is a process of consuming computing resources to process transactions, ensuring network security and keeping everyone's information synchronized in the network. It can be understood as the data center of bitcoin. The difference lies in its completely decentralized design. Miners operate all over the world, and no one can control the network

this process is called "mining" because it is similar to gold panning, because it is also a temporary mechanism for issuing new bitcoin. However, unlike gold panning, bitcoin mining provides rewards for services that ensure the safe operation of payment networks. After the last bitcoin, mining is still necessary

anyone can run software on specialized hardware and become a bitcoin miner. Mining software monitors transaction broadcast through P2P network and performs appropriate tasks to process and confirm these transactions. Bitcoin miners can earn transaction fees paid by users to speed up transaction processing and additional bitcoin issued according to fixed formula

6. It's said that it's good to pick hemp. At that time, I foolishly went to certify the soldier, and I regret that I have no place to cry. But picking hemp is about to run around. If I were given another chance, I would certify the mining
7. I have cooperated with Shengshi Huacai company before
it has professional knowledge of blockchain system
8. To be honest, bitcoin is past prime time. Bitcoin is virtual and can be understood as a resource. For example, the excavator and mining machine sold on the Internet is actually a kind of software. This software operates on your computer, which is mining and analyzing data resources. At present, the average family computer to dig a day mine still can not earn electricity
9. IPF is closely symbiotic with filecoin
IPFs is used to locate and transmit data and exists as infrastructure; Filecoin is the economic incentive system of IPFs
without filecoin, IPFs is difficult to start and work; The continuous development of IPFs provides an important basic support for filecoin, and the popularity of IPFs will affect the market's demand for more secure and efficient distributed storage filecoin
mining machine is the machine that you get filecoin, IPFs is a technology, and what we call mining is actually the incentive layer of this technology, which is filecoin.
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