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Qube blockchain
Publish: 2021-04-30 00:30:14
1. Whether a currency is counterfeit depends on whether it meets the basic characteristics of blockchain. Blockchain is divided into public chain and private chain. The public chain is a block chain based on the principle of decentralized open consensus, which has two characteristics: 1. Decentralized, single point can not be controlled; 2; 2. Open, all people or institutions can participate in any part of the blockchain ecology; Private chain or alliance chain is a local decentralized and non open block chain based on internal or self trust. It has two characteristics: 1. Local decentralization. For example, several banks run one node and have equal computing power; 2. In closed operation, only officially designated participants can participate in the core work of blockchain operation, and even block queries are limited or not open to the outside world at all; Ethereum started as a community project and is still on the road of decentralization. However, Ethereum chooses to become more and more decentralized and public chain like bitcoin. At present, Qube is the largest trading platform of Ethereum in China, followed by oke, and the trading volume of bitmex abroad is not small. Its recognition is second only to BTC.
2. Qube exchange answers for you:
to apply blockchain, we must first understand the characteristics of blockchain: decentralization, openness, autonomy, non tampering information and anonymity
it is of great benefit to the following instries:
1. Art investment
using blockchain technology, we can track the source of art. Because every transaction has a digital certificate, and is unique, avoid black market transactions
2. Literary works
because blockchain is traceable, it can avoid the occurrence of piracy. Once a work is created, later people can it, and you can find it immediately
3. Finance
some financial payment and clearing systems are imperfect, especially cross-border payment. Blockchain is not only an information registration system, but also a payment system. Therefore, the account book can not be modified and open, so that it can serve the financial market;
to apply blockchain, we must first understand the characteristics of blockchain: decentralization, openness, autonomy, non tampering information and anonymity
it is of great benefit to the following instries:
1. Art investment
using blockchain technology, we can track the source of art. Because every transaction has a digital certificate, and is unique, avoid black market transactions
2. Literary works
because blockchain is traceable, it can avoid the occurrence of piracy. Once a work is created, later people can it, and you can find it immediately
3. Finance
some financial payment and clearing systems are imperfect, especially cross-border payment. Blockchain is not only an information registration system, but also a payment system. Therefore, the account book can not be modified and open, so that it can serve the financial market;
3. Qube exchange answers for you:
1) new transactions broadcast to the whole network
2) each node brings the received transaction information into a block
3) each node tries to find a workload proof with enough difficulty in its own block
4) when a node finds a workload proof, it broadcasts to the whole network
5) if and only if all the transactions contained in the block are valid and have not existed before, other nodes agree with the validity of the block
6) other nodes indicate that they accept the block, and the method of indicating acceptance is to follow the end of the block, create a new block to extend the chain, and regard the random hash value of the accepted block as the random hash value that is faster than the new block
hope to help you.
1) new transactions broadcast to the whole network
2) each node brings the received transaction information into a block
3) each node tries to find a workload proof with enough difficulty in its own block
4) when a node finds a workload proof, it broadcasts to the whole network
5) if and only if all the transactions contained in the block are valid and have not existed before, other nodes agree with the validity of the block
6) other nodes indicate that they accept the block, and the method of indicating acceptance is to follow the end of the block, create a new block to extend the chain, and regard the random hash value of the accepted block as the random hash value that is faster than the new block
hope to help you.
4. I personally suggest and recommend VJC. After all, Ethereum has been around for some time, and many investors have already owned it. However, Yutong chain is different. It has just been launched on the stex. Exchange platform for less than a month, and other trading platforms have not yet been launched. This is enough to prove that there is still a lot of purchasing power and the price is not high. The current price is more than $1.
5.
The original intention of Nakamoto's design of bitcoin is to build a point-to-point trading network that is decentralized, transaction information can not be tampered with, and the total amount of money is constant, so as to solve the problems of excessive issuance of legal currency and inflation
this is the value of bitcoin's initial design, to keep the purchasing power of money
But later, the development of bitcoin went against Nakamoto's idea. In the past nine years, the price of bitcoin soared by millions of times, creating countless myths of sudden wealth and driving another instry miningthe value of bitcoin has become a tool for "sudden wealth". More and more people join the bitcoin network, hoping to achieve financial freedom. Digital cryptocurrencies such as bitcoin have become investment procts, like diamonds or gold
by purchasing bitcoin, people can achieve the purpose of wealth appreciation and asset preservation in many troubled areas. At the same time, many people make use of the fluctuation of bitcoin price to speculate, such as moving bricks, making bands and so on
another important value of bitcoin can not be ignored is blockchain, the underlying technology of bitcoin. Because of the popularity of bitcoin, many companies and indivials begin to pay attention to blockchain, and constantly try to use blockchain technology to change the existing business and create new value. It is with the help of bitcoin that blockchain has achieved such rapid development
bitcoin is also a great social experiment for all mankind, which promotes the reform of the financial instry and gives many original things a new perspective
6. Right (A1, len (A1) - 1)
suppose your number is in A1.
suppose your number is in A1.
7. Qube exchange answers for you:
the problem of legal currency is that when the financial crisis occurs, the legal currency depreciates and the social wealth shrinks. When the old legal currency collapses, people will rush to bitcoin and take bitcoin as a new haven for assets - "the 21st century version of gold", so Nakamoto and these people realize this through technical means
first, to be a digital currency, we must have a digital account book. But if the database is in the hands of Zhongben Cong, it is easy to be tampered with. He thinks that everyone can participate in bookkeeping and obtain the account book. This is a very important distributed account book in the blockchain, and anyone can download this account book. In this way, the account book is not in one person's hands, ensuring its security and feasibility.
Second, even if the account book is not in the same person's hands, "it's very easy to modify it". Why can bitcoin be permanent, irreversible, open and transparent? It's reasonable that all blockchain based applications can do this, but at present only bitcoin can. There are four reasons:
1
because bitcoin is a record based on time stream, time can not be reversed, so bitcoin transaction record is irreversible. At the same time, bitcoin is a double entry ledger, and the hash value of the last ten minutes' transaction record is recorded in the next ten minutes' block. Therefore, the modification of any previous transaction record will lead to the change of all subsequent transaction records, so as to ensure its traceability. Secondly, every transaction is made public on the whole network. Everyone can see "a 100 bitcoin transaction from address a to address B" and verify that there is no repeated payment for this transaction. Only legitimate transactions can be included in the block, and then all people can view it again. Therefore, the whole network is open and transparent
2. Computing power is decentralized and huge
in the first place, Nakamoto g his own mine for one year. In the next seven years, tens of millions of miners all over the world participated in the process of mining. Therefore, if you want to modify the transaction records, only 51% of the computing power of the whole network can be achieved, which is almost impossible
3. Transaction record storage is decentralized
a block is generated every ten minutes, and the bookkeeping right may be snatched by people anywhere in the world. Bitcoin calculates a value through the algorithm, which is the number of hash collisions. If the "value" is calculated, it will be given the bookkeeping right to obtain bitcoin. There is a consensus that whoever calculates the value first will be charged, Avoiding the right to keep accounts is always in the hands of one person. This is called mining, so transaction records may be stored around the world, rather than a central organization, such as Alipay.
4. Decentralization of rule making
anyone can propose the modification or change of bitcoin protocol and write the corresponding code, but whether it is adopted or not depends on whether it can have more than 51% of the computing power of the whole network
the above four points ensure that bitcoin is permanent, irreversible and transparent to the whole network.
the problem of legal currency is that when the financial crisis occurs, the legal currency depreciates and the social wealth shrinks. When the old legal currency collapses, people will rush to bitcoin and take bitcoin as a new haven for assets - "the 21st century version of gold", so Nakamoto and these people realize this through technical means
first, to be a digital currency, we must have a digital account book. But if the database is in the hands of Zhongben Cong, it is easy to be tampered with. He thinks that everyone can participate in bookkeeping and obtain the account book. This is a very important distributed account book in the blockchain, and anyone can download this account book. In this way, the account book is not in one person's hands, ensuring its security and feasibility.
Second, even if the account book is not in the same person's hands, "it's very easy to modify it". Why can bitcoin be permanent, irreversible, open and transparent? It's reasonable that all blockchain based applications can do this, but at present only bitcoin can. There are four reasons:
1
because bitcoin is a record based on time stream, time can not be reversed, so bitcoin transaction record is irreversible. At the same time, bitcoin is a double entry ledger, and the hash value of the last ten minutes' transaction record is recorded in the next ten minutes' block. Therefore, the modification of any previous transaction record will lead to the change of all subsequent transaction records, so as to ensure its traceability. Secondly, every transaction is made public on the whole network. Everyone can see "a 100 bitcoin transaction from address a to address B" and verify that there is no repeated payment for this transaction. Only legitimate transactions can be included in the block, and then all people can view it again. Therefore, the whole network is open and transparent
2. Computing power is decentralized and huge
in the first place, Nakamoto g his own mine for one year. In the next seven years, tens of millions of miners all over the world participated in the process of mining. Therefore, if you want to modify the transaction records, only 51% of the computing power of the whole network can be achieved, which is almost impossible
3. Transaction record storage is decentralized
a block is generated every ten minutes, and the bookkeeping right may be snatched by people anywhere in the world. Bitcoin calculates a value through the algorithm, which is the number of hash collisions. If the "value" is calculated, it will be given the bookkeeping right to obtain bitcoin. There is a consensus that whoever calculates the value first will be charged, Avoiding the right to keep accounts is always in the hands of one person. This is called mining, so transaction records may be stored around the world, rather than a central organization, such as Alipay.
4. Decentralization of rule making
anyone can propose the modification or change of bitcoin protocol and write the corresponding code, but whether it is adopted or not depends on whether it can have more than 51% of the computing power of the whole network
the above four points ensure that bitcoin is permanent, irreversible and transparent to the whole network.
8. Voting is because the questioner can't tell which question to adopt,
so to ask other friends to vote, the answer with the highest number of votes can let the questioner refer to which one should be adopted most.
participation in voting can also score
so to ask other friends to vote, the answer with the highest number of votes can let the questioner refer to which one should be adopted most.
participation in voting can also score
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