Dot miner

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. AUV public chain adopts the consensus mechanism of activity proof mechanism, all data are open by default, and its own security is generated through its publicity

3.

1 yuan, front for Mao Zedong, orchid background; The design on the back is Hangzhou West Lake (Santan Yinyue), olive green

5 yuan, with Mao Zedong on the front and Narcissus on the bottom; The design on the back is Mount Tai (the only stone in the five mountains), with purple tone

10 yuan, with Mao Zedong's rose on the front; The pattern on the back is the Three Gorges of the Yangtze River (Kuimen of Qutang gorge), blue and black

20 yuan, with Mao Zedong on the front and lotus on the bottom; The design on the back is Guilin landscape (Yangshuo, Xingping, Yuanbaoshan, Lijiang River), with brown tone

50 yuan, with Mao Zedong on the front and chrysanthemum on the bottom; The design on the back is Potala Palace, green

100 yuan, with Mao Zedong on the front and plum blossom on the back; The design on the back is the Great Hall of the people in red

extended information :

in order to meet the requirements of economic development and market currency circulation, on October 1, 1999, on the 50th anniversary of the founding of the people's Republic of China, the people's Bank of China issued the fifth set of RMB (1999 edition) one after another. The fifth set of RMB has six denominations: 1 yuan, 5 yuan, 10 yuan, 20 yuan, 50 yuan and 100 yuan, of which 1 yuan has two kinds of notes and coins

the fifth set of RMB inherits the traditional experience of China's printing technology and draws lessons from the advanced technology of foreign banknote design, which has greatly improved its anti-counterfeiting performance and adaptability to the modernization of currency processing. The front of each denomination currency adopts the head portrait of Chairman Mao Zedong in the early days of the founding of the people's Republic of China, the background adopts the Chinese famous flower pattern, and the back main scene pattern fully shows China's long history and magnificent mountains and rivers, and carries forward China's great national culture through the selection of representative patterns with national characteristics. In the fifth set of RMB, the 10 cents, 20 cents, 50 cents and 2 yuan notes in the fourth set of RMB were cancelled and the 20 yuan notes were restored

The fifth set of RMB has six denominations: 100 yuan, 50 yuan, 20 yuan, 10 yuan, 5 yuan and 1 yuan. The fifth set of RMB increases the denomination of 20 yuan and cancels the denomination of 2 yuan according to the situation that the main currency of low denomination in the market actually plays a large role in change making, which makes the denomination structure more reasonable. The fifth set of RMB adopts the method of "one-time announcement, sub issuance". On October 1, 1999, 100 yuan notes were issued first; 20 yuan notes and dimes were issued on October 16, 2000; On September 1, 2001, 50 yuan and 10 yuan banknotes were issued; On November 18, 2002, 5 yuan notes and 50 cents coins were issued; On July 30, 2004, 1 yuan note was issued

in order to improve the printing technology and anti-counterfeiting technology of the fifth set of RMB, the people's Bank of China issued the fifth set of RMB 2005 version 100 yuan, 50 yuan, 20 yuan, 10 yuan, 5 yuan banknotes and stainless steel dime on August 31, 2005 with the approval of the state Council. The main pattern of the 2005 version is consistent with that of the 1999 version, but the dimming number, the position of the denomination watermark, the addition of gravure handle line, anti mark, and the addition of Suffix "Yuan" to the denomination number on the back are adjusted. The fifth set of RMB dimes is made of stainless steel instead of aluminum alloy. The color is steel white, and the front is "people's Bank of China", "dime" and Chinese phonetic alphabet "Yi Jia", as well as the year number

in November 2015, the central bank issued the 2015 version of 100 yuan note. On the premise that the specifications and main patterns remain unchanged, the face patterns, anti-counterfeiting features and layout are adjusted to improve the machine reading performance. Advanced public anti-counterfeiting technology is adopted to make it easier for the public to identify the authenticity

references : the fifth set of RMB_ Network