Difference between POS and POW mining modes

1.

POW: full name of proof of work

pos: proof of stake

both of them are the consensus mechanism of blockchain and the bookkeeping method of digital currency

the difference is:

1. POW mechanism: workload proof mechanism, that is, the proof of workload, is the requirement that must be met when generating a new transaction information (that is, a new block) to be added to the blockchain. In the blockchain network based on workload proof mechanism, the ability of nodes to obtain the correct numerical solution to generate blocks by calculating the numerical solution of random hash hash is the specific performance of node computing power

POS mechanism: the proof of rights and interests requires the certifier to provide a certain amount of ownership of cryptocurrency. The operation mode of the proof of rights and interests mechanism is that when creating a new block, the miners need to create a "currency right" transaction, and the transaction will send some coins to the miners themselves according to the preset proportion. According to the proportion and time of token owned by each node, the equity proof mechanism reces the mining difficulty of nodes proportionally according to the algorithm, so as to speed up the speed of searching for random numbers

extended materials:

the concept of bitcoin was first proposed by Nakamoto in 2009. According to Nakamoto's ideas, the open source software and the P2P network on it were designed and released. Bitcoin is a kind of P2P digital currency. Point to point transmission means a decentralized payment system

unlike most currencies, bitcoin does not rely on specific currency institutions. It is generated by a large number of calculations based on specific algorithms. Bitcoin economy uses the distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses the design of cryptography to ensure the security of all aspects of currency circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction

2. In line with the rigorous logic of problem-solving, we should first ask whether it is, then why
first of all, the topic is not right. Now there are all kinds of currencies on the exchange, whether it's big platforms like Qube, or small ones like coin an, or competitive ones like Shanzhai coins. They are not all POS models
for example, LTC is a variant of crypt algorithm pow, dogcoin is a variant of pow, and auxpow is a fusion mining algorithm
Dashi coin is the pow of X11 algorithm, Ethereum is the pow of ethash algorithm, and Diandian coin is the pow + POS simultaneous mining. Now the new Shanzhai coin is mostly the early POW + late POS mode, the reason is 1, the early POW is to avoid uneven distribution. 2. In the later stage, POS can't win in the pow competition, but the computing power is low, and POW is easy to be attacked by 51
that is, only from the perspective of security: high computing power pow (including auxpow like dog coin) & gt; POS> Low computing power pow

3. Let me tell you this: POW has almost all the advantages and POCS have none of the disadvantages. Bitcoin's pow consensus mechanism has obvious shortcomings: energy waste, noise, mining centralization. The cost of bitcoin mining is getting higher and higher, and the computing power is concentrated in several large mines, so it is difficult for ordinary users to participate; HDFS adopts POC mechanism for hard disk mining, so that everyone can mine.

4. I have heard a friend who has been mining for three or four years mention that the team members of Bateman information technology company are specialized in the research, development, manufacturing and sales of virtual currency mining equipment. It is said that they initially made traditional POW mining machines, and then graally turned to hard disk mining machines with the development of the instry. They have rich technology and experience, and the procts launched today are also very good.

5. Bitcoin is a consensus network, contributing to a new payment system and a fully digital currency. It is the first decentralized peer-to-peer payment network, which is controlled by its users without a central management organization or middleman. From the user's point of view, bitcoin is much like Internet cash. Bitcoin can also be regarded as the most outstanding three style bookkeeping system. It can be circulated all over the world with a fixed total amount and no issuing body< At present, there is no legal electronic currency in China. QQ currency is a kind of game currency with fixed value, which is released by Tencent. Alipay's three party payment system is a means of payment. They all have the subject of operation. Legal tender is issued by the central bank and endorsed by the state as credit

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

6. First of all, you can register a company in Hong Kong of any nationality. Secondly, most of them are not registered in Hong Kong. For example, the famous Biyuan chain, quantum chain, Ethereum and fire coin network are not registered in Hong Kong, most of them are in Singapore. It's also registered in Switzerland
it's very easy to register a Hong Kong company. You only need to provide your ID card and company name. The registration time is 10 to 15 working days. It's very fast.

7. Science and technology change life, but also to promote the driving force of economic development. In recent years, the wave of mobile Internet and big data technology is higher than one wave, rapidly leading the development trend of the new era. In 2017, when new things and new technologies continue to emerge, the emergence of blockchain undoubtedly set off a new revolution in digital economy. Chongqing jinwowo network technology group, in line with the current national policy of the development of big data instry, deeply explores the research and development of blockchain technology, explores the application of blockchain technology, and is committed to developing into a well-known brand in the field of blockchain in China, leading the new ideas of blockchain development.

8. The main difference between POC and POW is the implementation path. POC requires miners to calculate a series of hash values for mining in advance and store them in the hard disk in the form of array; When participating in mining activities, the miner searches the array in the hard disk to find the most suitable "answer" for the block
POC uses a very slow hash algorithm, which makes the bottleneck of getting the "right answer" come from the storage capacity rather than the computing speed of the chip. This mechanism requires that miners only need to prepare more storage space, rather than stack computing power
lava is a decentralized digital encryption infrastructure based on POC. Moreover, lava's vision, team and technical support all point to a grand goal, aiming to become the root of trust and top-level index of global storage space. Therefore, lava occupies an excellent track of POC mining + decentralized storage, with huge development space.

9. 1. POW is the proof of workload, which is familiar with mining. Through mathematical operation, we can calculate a random number that meets the rules, that is, we can obtain the bookkeeping right, send out the data that need to be recorded in this round, and store it together with other nodes in the whole network after verification. In a word, nineteen is one hundred and sixty; The more you do, the more you get, that is socialism, distribution according to work, more work, more gain
2. POS is the proof of rights and interests of POS, which is an upgrade consensus mechanism of pow; According to the token proportion and time of each node; It can rece the difficulty of mining in equal proportion, so as to speed up the speed of finding random numbers. In a word: the more you hold, the more you get. POS is capitalism, distributing according to money, money makes money
3. I read the news a few days ago that God V wanted to solve this problem. Pgpow algorithm is proposed by biut public chain. Polling group proof of work integrates the advantages of POS and POW consensus algorithm to realize decentralized POW mining.