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Ⅰ Do you know the essence of blockchain and what is the principle of Bitcoin?
Blockchain has been developing to this day for some time. During this time, , people’s understanding of blockchain has experienced rapid changes.
The essence of blockchain is technology
Since we talk about the essence, what is the essence? The essence should be traced back continuously until it can no longer be traced back. Only then can what is obtained be called the essence. The essence of blockchain is a technology. Going back to the original starting point of the blockchain, when Bitcoin was first born, the problem it had to solve was the Byzantine Generals Problem. From a professional perspective, it was to solve the problem of how to achieve consistency in a distributed environment. . Blockchain technology is a combination of multiple technologies. It is naturally suitable for multi-party cooperation and can provide a trusted environment for multi-party cooperation.
Application of the non-tamperable characteristics of blockchain
Bitcoin’s technical principle P2P network
Bitcoin is a P2P computer Network, each network node stores all transaction records on the network. Generally speaking, any information can be recorded on one node plus several backups. All transaction records of the network are stored on each node, which results in the transaction records being visible to each node, and each node cannot independently modify the transaction records arbitrarily, thus forming a set of open and transparent transaction records.
Ⅱ Comprehensive interpretation of blockchain and Bitcoin, teach you to understand the relationship between the two, and be prepared for trouble
When talking about blockchain, the word "Bitcoin" is often inseparable. Because today's cryptocurrencies are all issued in the name of blockchain, some people easily confuse the two concepts. Next, Kelian Cloud Technology will comprehensively explain the difference between blockchain and Bitcoin and teach you to understand the relationship between the two.
Blockchain is a distributed account. Simply put, it is a decentralized ledger that can be viewed and joined by many people. For example, each block is equivalent to each knot on a rope. When each new transaction enters the blockchain, it means that something has happened. To mark the occurrence of something, a symbol will be used. Tie a knot and record detailed information on the specific knot.
Bitcoin uses blockchain to realize value storage and transactions. In addition, the technical difficulty of the blockchain itself is not the most difficult. The most difficult thing is its application scenarios and the regulatory issues it will face. .
There are three classifications of blockchain, namely public blockchain, private blockchain, and joint blockchain; the other classification is without authority and permission.
Therefore, cryptocurrencies use blockchain technology, but blockchain technology is not exclusive to cryptocurrencies
When the financial crisis came, some investors chose to invest in cryptocurrencies. In this way, the corresponding asset risks can be avoided. Thanks to the mechanism of blockchain to solve the trust problem, this technology has alreadyIt is used in financial management and transactions. The main manifestation is that blockchain can track various types of transactions and can also play a role in anti-counterfeiting and traceability in various scenarios. Issues such as copyright, trademark, and academic fraud have been exposed.
In addition, blockchain technology can also simplify transactions, make the entire transaction process open and transparent, and track every link of the transaction event to ensure that both parties have a certain degree of trust.
When "mining", the open source blockchain network can ensure trust and has the characteristics of being non-tamperable. When the networked computers undergo sophisticated algorithms, the correct answer comes out, and "absentees" You will get mining rewards and can use servers all over the world, but the whole process is still very energy-consuming.
It may be this misunderstanding that causes the public to confuse the concepts of Bitcoin and blockchain. Although more than 90% of current blockchain projects have issued coins, there are very few projects that can actually be implemented. In addition, the crazy mining practice of Bitcoin wastes graphics cards and electricity to a large extent.
Bitcoin is an open source version of blockchain technology, that is, a network developed for everyone. It is popular for its decentralization advantages. However, as a public blockchain, Bitcoin However, mining consumes a lot of computing power, resulting in serious power consumption in many countries.
Therefore, for an emerging technology, it is best not to blindly trust or invest in it. Only by recognizing its true purpose can you see everything objectively and be prepared.
Ⅲ What are the differences and connections between blockchain and Bitcoin?
Blockchain technology is a new technology derived with the development of the Bitcoin economy. Blockchain technology can effectively The ground serves the Bitcoin economy, and they are interconnected. Bitcoin is a virtual currency that only circulates in a specific network economic environment. Blockchain technology can not only be applied to the economy, but can also be used in all walks of life. This is their difference.
Blockchain TechnologyBecause blockchain technology is still an emerging product, it does not yet have an accurate or definite definition and concept. Simply put, blockchain technology is a model for encrypted management of data, which can protect data to a large extent. Blockchain technology has the distinctive characteristics of decentralization, openness, independence, security and anonymity. Its characteristics are well adapted to today's requirements for information protection and information disclosure in all walks of life. On the one hand, it ensures data security and prevents data processing from being interfered by factors such as human subjective emotions and system failures. On the other hand, it is up to the individual data to decide whether to hide their details from the group to the greatest extent possible to achieve the purpose of protecting privacy.
At the same time, there is no doubt that blockchain technology is still in a preliminary state of development. Society's understanding of it is not deep enough, and scholars are still in the stage of continuous exploration. Through correct application, blockchain technology will bring many positive impacts to society.
IV Principle of Bitcoin
Bitcoin is actually a special solution generated by a large number of complex algorithms. A special solution refers to a group of infinite solutions obtained by a system of equations. In common parlance, it is equivalent to the serial number of RMB. As long as you know this serial number, you own this RMB.
The mining process is to continuously seek special solutions to this system of equations through a huge amount of calculations. This system of equations is designed to have only 21 million special solutions, so the upper limit of Bitcoin is 21 million.
The current mainstream algorithms are BTC and LTC.
The BTC algorithm is a pure digital operation, so you only need to customize a computing chip to implement mining operations.
The LTC algorithm requires a certain amount of memory. When the machine is working, in addition to customizing a computing chip, it also needs to configure a certain number of memory devices. Currently, the prices of mining machines in the world vary from high to low, which determines the efficiency of the mining machines in mining.
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IV What is the relationship between blockchain and Bitcoin
Blockchain technology is the basic technology of Bitcoin and also the core of Bitcoin. core and infrastructure. Bitcoin has always been operated and managed without any centralized organization. Later, Bitcoin technology was abstracted and called blockchain technology, or distributed ledger technology.
(1) Blockchain is the core and infrastructure of Bitcoin:
1. In the Bitcoin system , "currency" is simply the unit of account used in that ledger. The most important thing is not the concept of "currency", but the concept of "ledger" without a central storage organization. For example: I lend 50 yuan to someone else. At this time, I asked the financial staff to help me keep accounts.
2. Blockchain technology is the basic technology of Bitcoin and the core and infrastructure of Bitcoin. Bitcoin has always been operated and managed without any centralized organization. Later, Bitcoin technology was abstracted and called blockchain technology, or distributed ledger technology.
(2) Blockchain is the core and infrastructure of Bitcoin:
1. In the Bitcoin system, “currency” is just the accounting used in the ledger. unit. The most important thing is not the concept of "currency", but the concept of "ledger" without a central storage organization. For example: I lend 50 yuan to someone else. At this time, I asked the financial staff to help me keep accounts. Bookkeeping must be paid, so I need to pay the financial staff.
Because an incentive mechanism has also been invented in the Bitcoin system technology, which is equivalent to what I just said, you can help me keep accounts and I will pay you, but not everyone can keep accounts. rewards. Therefore, the blockchain has designed a corresponding mechanism competition mechanism.
2. The competition mechanism uses a hash algorithm to determine the ownership of rewards. Generally speaking, everyone is given a math problem. The reward is for whoever calculates the result first. hash algorithm calculationThe calculation process is a process of using a professional computer (we call it a miner) to calculate the results using a hash algorithm, which is called mining.
For the fastest and best bookkeepers, the system writes the recorded contents into the account books and sends the account book contents to everyone in the system for backup. This way, everyone in the system has a complete ledger called blockchain technology.
(3) The origin of blockchain:
1. The origin of the word "blockchain" is from the original English version of the Bitcoin white paper "Blockchain". When translating this sentence, the Chinese market directly used the word "blockchain" and then directly wrote it as "blockchain", which became a proper noun at the global blockchain technology level.
So, no matter who explains the blockchain, Bitcoin cannot be bypassed. If you want to introduce the history of cars, just like you can't avoid Carl Benz; if you want to introduce the history of airplanes, just like the Wright brothers.
2. Bitcoin "invented" and proved the feasibility of blockchain technology. Bitcoin is not the entire blockchain technology, just one of its applications. But without Bitcoin, or if Bitcoin's applications were not successful, blockchain might not have emerged, or at least not for many years. Therefore, it is difficult for the blockchain to be "isolated" from Bitcoin for a long time.
(5)Bitcoin Transaction Principle Blockchain Extended Reading:
Blockchain Technology Applied to Digital Currency Disadvantages:
First, "decentralization" does not have a circulation management agency. In essence, blockchain technology is a distributed database system, its logical structure is a one-way linked list, and its design model is based on P2P network, which determines that there is currently no unified virtual currency central control system based on blockchain technology. .
Second, quantity supply is difficult to effectively control. Based on blockchain technology, the issuance amount of virtual currency is fixed. According to the Fisher equation, at a certain price level, the total transaction volume of the whole society in a certain period has a certain ratio to the required nominal amount of money, and a fixed amount of money obviously cannot meet the requirements of the ever-increasing total price of social commodities.
Third, it is difficult for the “mining mechanism” to create recognized value. Bitcoin itself has no value and is not backed by national credit. Some people think that "value is injected into virtual currency by continuously consuming computing power and energy", but in order to find a hash value that meets the requirements, spending millions of calculations is obviously not the most efficient option.
Fourth, producers and early holders can easily obtain high seigniorage taxes. Any virtual currency based on blockchain technology will be held by a small number of people in the early stages of development. Take Bitcoin for example. At first, Bitcoin was just a product of a few people's game. In May 2010, the first transaction to buy Bitcoin was a $25 pizza purchased for 10,000 Bitcoins, and the first transaction completed in July of the same year was $0.04/Bitcoin.
VI What is Bitcoin and how does it generate income
Bitcoin is actually issued by p2pThe electronic currency data currency generated by the software is a kind of network virtual asset. Therefore, Bitcoin is also called Bit Gold. It is generated by a set of cryptographic codes through complex algorithms. This rule is not subject to interference by any person or organization. Anyone can download and run it or participate in the creation of Bitcoin. One of the biggest features of Bitcoin is that it cannot be counterfeited. It is possible to make money in the Bitcoin market by investing time and money.
The time spent is mainly to complete some small tasks on the website, and you can visit these websites every few minutes, and you will get a small amount of Bitcoin. So you can do this if you have time. If you want to earn more, you should invest money in the early stage. There are also dedicated casinos for Bitcoin, so you can earn more by relying on luck.
Ⅶ What is the essence of blockchain and what is the principle of Bitcoin? What is the difference between the two?
The price of one Bitcoin has skyrocketed from more than 20,000 US dollars to 40,000 US dollars. This can't help but arouse my research interest, or to briefly understand what Bitcoin is, what its mechanism is like, and to uncover its mystery. Therefore, I simply searched for some information and learned a little bit about Bitcoin, so I sorted out the information on hand.
(3) Purpose: decentralization, reducing risks
Centralized network Only the central server can store and process data. The disadvantage is that the workload is large. Once it is paralyzed, the entire system will be paralyzed; the data storage volume is large; the central manager has great authority.
All servers in the distributed network can store and process data. Each server has an equal status and can store more data and have higher security.
The general popular science content is like this. If you want to know more, you can take a look at Satoshi Nakamoto’s paper and the official popular science video below.
Ⅷ What is the relationship between blockchain and Bitcoin?
What is the relationship between blockchain and Bitcoin?
Q1:
So what is the relationship between blockchain and Bitcoin?
Before answering this question, we must first clarify what Bitcoin is.
Bitcoin is a brand new digital currency, but this so-called "currency" has a characteristic, that is, it has no issuing agency.
Q2:
Then you may ask, how does Bitcoin ensure the entire system without the management of an issuing agency?What about the security and stability?
A special technology is needed here, and this special technology is "blockchain" technology. So we say that blockchain is the underlying technology of Bitcoin.
However, blockchain technology is not a brand-new thing. It is a technology that combines classic disciplines such as cryptography, distributed storage, consensus mechanisms, and smart contracts. As Bitcoin became known, the technology used in the Bitcoin system was vividly called "blockchain".
So we say that Bitcoin is the first application of blockchain, and Bitcoin represents the blockchain 1.0 era. The distinctive feature (or application scenario) of the blockchain 1.0 era is the digital currency represented by Bitcoin.
The birth of Bitcoin, or the emergence of blockchain technology, has a certain background.
In 2008, the world was in the midst of a severe economic crisis. The Federal Reserve's issuance of additional currency aggravated inflation and the economic crisis further spread. As a result, a person with the pseudonym "Satoshi Nakamoto" began to explore a new currency model, that is, the issuance of currency no longer relies on centralized institutions, so as to avoid the consequences of mistakes in decision-making by centralized institutions. All kinds of crises.
In 2008, Satoshi Nakamoto described the technical principles of Bitcoin in detail in a paper "Bitcoin: A Peer-to-Peer Electronic Cash System".
From this paper we can summarize that one of the biggest features of the Bitcoin system is "decentralization". In other words, the power to maintain the Bitcoin system is no longer concentrated on a central server, but relies on every node on the system. Through cryptography and other computing methods, it is ensured that Bitcoin, the "digital currency", can not be duplicated. At the same time, the circulation and transactions of Bitcoin can be well recorded.
Q3:
So, how to better record Bitcoin circulation transactions without the management of a central organization?
This involves the term "distributed storage". What does distributed storage mean? We can make an analogy and think of the Bitcoin system as a "ledger", which records Bitcoin transactions. However, this "ledger" is not concentrated in the hands of one person, but is decentralized. In other words, every node on the Bitcoin system has such an ledger, and everyone keeps accounts together. If you want to update the accounts, you need the consent of the majority of people... The "distributed storage" method of recording data used by the Bitcoin system has become one of the core technologies of the blockchain.
In addition, on the Bitcoin system, nodes must follow certain rules when recording data. This rule is called the "consensus mechanism". Bitcoin's consensus mechanism is PoW, which is proof of work. The mechanism, to put it simply, means more work, more reward. The nodes pass the computerBy doing a lot of calculations, recording transactions on the Bitcoin system, and maintaining the Bitcoin system, you can get more Bitcoin rewards... The "consensus mechanism" adopted by Bitcoin has also become one of the core of blockchain technology. one.
Later, with the continuous enrichment of blockchain technology, consensus mechanisms also became diverse. Simply put, the consensus mechanism can be understood as the incentive mechanism of blockchain technology, because blockchain is decentralized and requires certain incentives to encourage nodes to proactively maintain the system.
From the above description, we can conclude that the Bitcoin system uses cryptography, distributed storage, consensus mechanism and other technical means to ensure that the system can be safe and stable without a central organization. run. These technologies are vividly summarized as "blockchain technology".
Therefore, we can understand the relationship between blockchain and Bitcoin like this:
Blockchain technology is the underlying technology of Bitcoin,
Bitcoin Bitcoin is the first application of blockchain;
Bitcoin represents the blockchain 1.0 era. The distinctive feature of this era is that blockchain technology is applied to the exploration of digital currency.
Whether it is Bitcoin or blockchain, if you say they are technologies, that is completely OK, because they are essentially the underlying protocol of a computer. This protocol is essentially the same as the Internet protocol we use now. It is completely different if you say it is an idea. Blockchain contains democratic ideas and incentive mechanisms. These ideas have great reference significance for our current community governance.
Of course, gold is never pure. After Bitcoin, blockchain was accepted by more people. At this time, a large number of altcoins emerged. These altcoins evolved into a new financing model, resulting in air coins, MLM coins, etc. The prevalence of currency flag fraud. Regarding this point, with the current tightening of supervision and improvement of legislation, those who defraud using blockchain technology will also be severely punished.
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Ⅸ What is the principle of Bitcoin and blockchain and what is going on with mining machines
Bitcoin is a digital currency generated based on a specific algorithmBitcoin is equivalent to digital gold. As a generally recognized equivalent, gold naturally has monetary properties and has been regarded as a currency in circulation since ancient times. Bitcoin was born in 2009. It was created by a person named Satoshi Nakamoto. As the earliest digital currency, it can be said to be worthless at the beginning of its creation. Until 2017, the highest trading price of Bitcoin exceeded 30,000. RMB and Bitcoin have become a valuable digital currency for the following reasons:
First of all, it is like gold. As a natural mineral, the total amount is limited. The same is true for Bitcoin. According to its own algorithm, it cannot be over-issued, so it will notDue to the excessive issuance of currency, the currency has rapidly depreciated. Due to algorithmic reasons, the number of Bitcoins is controlled to no more than 21 million and cannot be issued in large quantities, thus ensuring its value.
