币挖联合挖矿,2021年区块链接最新挖币

近年来，挖币（Mining）的热度越来越高，挖币投资者越来越多，挖币活动也越来越多。2021年，币挖联合挖矿（Coin Mining Alliance）将推出最新的挖币活动，带给投资者更多的机会和收益。

币挖联合挖矿是一项革新性的挖币活动，它不仅提供了投资者更多的收益机会，而且提升了投资者的收益水平。它的优势在于它可以把投资者的收益最大化，而且投资者只需要投资一定量的资金，就可以获得最大的收益。

币挖联合挖矿的另一个优势是它可以提供投资者更多的收益机会，投资者可以通过挖币活动获得更多的收益。币挖联合挖矿可以帮助投资者获得更高的收益，而且它可以提供更多的投资机会，以满足投资者的不同需求。

此外，币挖联合挖矿还可以提供投资者更多的安全保障，投资者可以放心投资，而不用担心资金安全。币挖联合挖矿还可以提供投资者更多的投资机会，以及更多的投资收益。

总之，2021年币挖联合挖矿将为投资者提供更多的收益机会，投资者可以通过投资挖币活动获得更高的收益，同时也可以获得更多的安全保障。币挖联合挖矿是2021年区块链投资者的最佳选择！

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⑴ What is "blockchain"

Blockchain technology is a technology that jointly maintains reliable databases through decentralization and elimination of trust. Four keywords can be used to describe blockchain technology: trust reduction, decentralization, collective maintenance and reliable database.

When we talk about the concept of "blockchain", Bitcoin is definitely a topic that will not be ignored. In recent years, Bitcoin has begun to enter the public eye, especially in 2017, which has continued to skyrocket throughout the year, making many people aware of this emerging thing.

Blockchain is actually the underlying technology of Bitcoin. Bitcoin exists because people on the Internet who don’t know each other can move and trade digital currency through the Bitcoin network. And this is driven by blockchain technology. All Bitcoin transactions are recorded on the blockchain ledger. To a certain extent, in the application of Bitcoin, the blockchain plays the role of the underlying database of the bank transaction system. Both are for "keeping accounts". Although it is not very prudent to refer to the blockchain directly as a "database", for the sake of ease of understanding, let's temporarily call it a decentralized, shared and encrypted database. If described in professional terms, blockchain is a distributed ledger technology.

Blockchain can usually be divided into the following types:

1. Public blockchain. Anyone can access data on a public blockchain, and anyone can issue transactions waiting to be written to the blockchain. Participants in the consensus process (corresponding to miners in Bitcoin at the time) maintain the security of the database through cryptography and built-in economic incentives.

2. Collaborative blockchain. The nodes participating in the blockchain are pre-selected, and there are likely to be good network connections between the nodes. Other consensus algorithms other than proof-of-work can be used on such a blockchain. For example, a blockchain has been established among a hundred financial institutions, and it is stipulated that more than two-thirds of the institutions must agree to reach a consensus. The data on such a blockchain can be either public or shared internally by these node participants.

3. Private blockchain. The participating nodes are only individual users, and the access and use of data are subject to strict permission management. Most of the internally used blockchain technologies announced by some financial institutions recently are vague and may fall into this range.

The blockchain is a public ledger. There is no centralized hardware or management organization. Anyone can automatically verify the authenticity of the ledger and easily discover whether the ledger has been tampered with by others.

In a word, the blockchain is a public ledger that can be verified by everyone.

The concept of being verifiable by everyone is crucial to blockchain.

Bitcoin uses the blockchain to record all transactions, so anyone knows the number of Bitcoins on each account.

Then,As a publicly verifiable ledger, what are some use cases for blockchain?

In fact, there are many use cases that can be thought of. Blockchain is suitable for any data that can be recorded on a public ledger. Here are 4 examples:

1. Decentralized domain name server, namely domain currency. The domain name server is actually a ledger that records domain names.

2. Trustless public key encryption, such as https that discards unreliable certification authorities.

3. Ownership records, truthfully record the items and their corresponding owners.

4. Contracts and performance guarantees, the account book truthfully records the parties to the contract and saves the contract text.

But don’t forget that blockchain also has a very important component.

The ledger recorded using blockchain technology will always be updated. New data such as transactions, domain name inputs, records and contracts will be converted into hash values ​​of the same length by the hash algorithm and saved. However, hashing algorithms are not only not free but also very expensive.

Therefore, the ledger itself needs to have a recognition system to recognize the person who enters the block hash value.

In Bitcoin, this system is called mining and is rooted in the Bitcoin protocol. Bitcoin miners use a hash algorithm to convert transactions waiting for verification into hash values, and charge a certain amount of Bitcoin as a service fee.

Therefore, for non-monetary use cases, blockchain needs to find a way to bear the high cost of hashing algorithms.

I would like to remind everyone that my answer mainly focuses on the possible use cases of blockchain technology, and does not cover all aspects of blockchain, such as why hashing algorithms are so expensive. I'm sure you can find a lot of detailed information about Bitcoin and other blockchain applications online.

Supplement

Although blockchain technology has many advantages, there are still some less than ideal use cases. For example, there is no way to convert Bitcoin into any national currency; a ledger with billions of data entries would take up space and be impractical.

Bitcoin has shown the world that blockchain technology is feasible in principle, and people are also trying to solve these increasingly prominent problems, such as technological transformation of Bitcoin or the introduction of a completely Different blockchain technologies. I think the following two methods are worth trying: one is to split the ledger according to certain standards such as the payer address, and the other is to introduce a main blockchain to verify the sub-blockchain. Blockchain technology is ever-changing and dazzling, and it’s unknown whether someone is already making such an attempt. But Bitcoin is still the world's first currency blockchain, what others call a cryptocurrency.

Whether in the technology circle or the financial circle, blockchain has become the hottest word, bar none. Blockchain has core advantages such as decentralization and trustlessness, and can perfectly solve problems such as information asymmetry, high transaction costs, and trust of strangers in the development of the sharing economy, making "individual economy" possible. Based on this, blockchain technology is considered to be the core technology that has the greatest potential to trigger the fifth wave of disruptive revolution after steam engines, electricity, information and Internet technology.

In this context, a blockchain craze was born in society, and everyone praised it overwhelmingly. Dialectics tells us that everything has flaws, and only by seeing the pros and cons of things can we make rational decisions. Therefore, in this article, Xue Hongyan (Hong Yanweiyu), a senior researcher at Suning Financial Research Institute, focuses on pouring some cold water on the blockchain.

| What is Blockchain

Blockchain, English Blockchain, has a rather mysterious technological flavor in its name, and can be simply broken down into "data blocks" and "links". Each data block contains all the information exchange data of the system within a certain period of time, and is encrypted using cryptographic methods; the link means that each block has a link relationship with the next block, thus forming a blockchain.

It is generally believed that blockchain has two major characteristics: decentralization and trustlessness. A brief introduction is as follows:

Since each block contains all the information exchange data of the system within a specific period of time, Therefore, each block is equal, and the damage of a single block does not affect the security of the entire system, so the blockchain has decentralized characteristics.

Similarly, since each block contains all the information of the system, the authenticity of the information can be cross-verified. Only by breaking through more than 51% of the nodes can the information be tampered with. In a large enough blockchain system , the cost is extremely high, it can be considered that the information in the blockchain is true, so the blockchain has the characteristics of trustlessness.

Most people’s understanding of blockchain begins with Bitcoin. The relationship between the two is that blockchain is the underlying technology and concept, and Bitcoin is only the most popular application of blockchain at present. .

Maybe the above is not popular enough. Finally, let me summarize, what do you think the blockchain is? Is it a disruptive new technology? NO! According to Xue Hongyan (Hong Yanweiyu), a senior researcher at Suning Financial Research Institute, blockchain is not so much a new technology as it is a new ideological concept. The information encryption and other technologies included in the blockchain have been around for a long time, and it is more of a conceptual innovation. This is also the reason why the blockchain has a huge impact. New technologies will be surpassed sooner or later, ranging from one or two years to four to five years; only innovative ideas have enough energy to affect all aspects of the economy and society.

| Blockchain is expected to change the underlying rules of the financial system

In applications in the financial field, blockchain will change the transaction process and record keeping methods, thereby greatlyIt can significantly reduce transaction costs and significantly improve efficiency. It is considered to have a broad market environment in digital currency, cross-border payment and clearing, bill trading, securities issuance and trading, property rights transactions, customer credit reporting, anti-fraud, and anti-money laundering.

Such a good technology is naturally sought after by everyone. Like many traditional financial people, Hong Yanweiyu resisted it at first, thinking that this thing was not that great, and did not do any research specifically. Later, as the research on financial technology gradually deepened, it was discovered that blockchain was an obstacle that could not be bypassed, because whether it was robo-advisory, big data risk control or online lending, they were only technological innovations at the financial business level and risk control level. It has not penetrated the bottom layer of the financial system. What is the underlying layer of the financial system? Naturally, it is payment and settlement, transaction rules and system interaction. What the blockchain changes is precisely the underlying rules.

Therefore, throughout the world, financial institutions are the most active in researching blockchain. If nothing else, they are really afraid. After the decentralization and trustless features of the blockchain are fully utilized, what else will the intermediaries of financial institutions do? It is estimated that this is also the first feeling of many people who have a preliminary understanding of blockchain.

In this article, Hong Yanweiyu focuses on pouring cold water on this view.

| Subverting the financial system, blockchain still faces two mountains

Marxist dialectics tells us that everything has two sides. The more prominent the advantages, the more obvious the flaws. It’s just the perspective. Just different. The two major problems with blockchain subverting the financial system lie precisely in the two major advantages of decentralization and trustlessness.

First, let’s talk about decentralization. First, we need to clarify a truth. Does centralization necessarily mean low efficiency? Of course not. Within a specific scope, the concentration of resources brought about by centralization can greatly improve efficiency. This is also the reason why human beings evolve from individuals to villages to tribes and then to countries in the process of evolution. Take UnionPay as an example. UnionPay is the clearing and settlement center for the domestic banking industry. After UnionPay is established, each bank only needs to connect with UnionPay to realize transactions with all banks. If it is decentralized, without UnionPay, each bank will need to When communicating with all counterparties, which one is more efficient? Therefore, there is no need to beat centralization to death with a stick. The decentralization feature of blockchain is destined to only play a role in specific fields (that is, fields that are not suitable for centralization). How can it subvert everything?

Furthermore, it is a matter of trust. There is nothing wrong with detrusting itself, but the technical logic behind it is deeply flawed. Blockchain relies on universal accounting to achieve trustlessness, that is, all transaction information is retained in each block for system cross-verification to identify authenticity. Here comes the problem. Each block retains all transaction information. There is no problem on a small blockchain. However, as more and more information is added, it will inevitably lead to an explosive growth of transaction information and will also bring information. Dramatic increase in storage costs. At the same time, the greater the amount of information, the longer cross-validation takes and the lower the efficiency. PlaceTherefore, the blockchain solves the trust problem, but it brings about rising costs and declining efficiency.

Nothing in the world is perfect, and the same is true for blockchain.

As a conclusion, Hongyanweiyu wants to clarify that blockchain, as a conceptual innovation, does have great value and can also have a disruptive impact in specific fields. However, the current one-sided thinking about blockchain is problematic. Eastern wisdom tells us that "the most brilliant and the golden mean", in the face of anything, it is wisest to maintain the golden mean.

(Text/Xue Hongyan, senior researcher at Suning Financial Research Institute; WeChat public account: Hongyan Weiyu)

As early as a few years ago, the word "mining" came with Bitcoin is well known for its popularity. Many people know about Bitcoin first and then the blockchain, and they even don’t know about the blockchain yet. By definition, blockchain is a series of data blocks generated using cryptographic methods. Each data block contains information about a Bitcoin network transaction, which is used to verify the validity (anti-counterfeiting) and generation of its information. Next block.

I am not a computer technology expert. The following introduction to blockchain comes from reading and comments from expert friends and is for reference only.

If you want to use one word to explain blockchain, it is: distributed accounting.

To understand what this word means, you need to first understand that traditional accounting has a center. For example, in a bank, when you withdraw money from a bank deposit or lend money to others through the bank, the bank is the center, and all these transactions are based on the bank's credit. What if the bank cheats? Or is it more serious, is the country cheating? The Kuomintang's indiscriminate issuance of gold yuan coupons at the end of its rule in mainland China, as well as the hyperinflation in Weimar Germany and Zimbabwe, which made the currency less valuable than toilet paper, are very famous examples.

Golden Yuan Coupons

This is the problem that blockchain is aimed at. They believe that decentralized accounting is non-modifiable and non-repudiable. How to achieve decentralized accounting? The basic idea is that all users store all transaction records, making it very difficult to illegally modify the ledger through mathematical methods. In this way, the reliability of the ledger is guaranteed.

Specifically, all users exhaustively enumerate random number variables, and the first user to obtain a specific required hash function value (Hash) will have the right to record this round of transactions and obtain the corresponding Bitcoins award. It is transmitted in the form of data blocks, and the data blocks are connected into a chain by appending at the end, so it is called a block chain.

After listening to the introduction, you may feel that this idea is interesting, but it is not as exciting or revolutionary as advertised. Your feeling is right. In fact, the basic logic of blockchain is somewhatAn unavoidable problem.

For example, the current size of the complete Bitcoin public ledger has exceeded 150 G, and is rapidly increasing at a rate of tens of G per year - just to support 5 million users and 30 million transactions per year. If its processing volume is one day comparable to that of Alipay, the size of the Bitcoin ledger will increase by more than 500 terabytes per year. This is equivalent to backing up the Alipay server's storage data on all users' personal computers. Do you think this is a good idea?

For another example, in the traditional banking system, if you lose your password, it is no big deal. Just report it to the system in time, and your wealth will not disappear. But in the blockchain system, if you lose your password, it will be a huge trouble, and your currency will not be recovered. Not happy? Is it surprising?

Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms. The so-called consensus mechanism is a mathematical algorithm to establish trust and obtain rights and interests between different nodes in the blockchain system

In layman’s terms, it is to play mahjong. Four people can take turns to be the banker, and each other can shoot four people. They all have their own ledger records, but if you want to modify the ledger, you must have more than 50% of the modification rights, so the cost of cheating on the ledger is very high.

In the future, blockchain will be used more in finance to combat money laundering and fraud, because all information can be traced, and in culture it can be used for copyright protection, etc.

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I have seen a lot of people’s explanations of blockchain in official terms, and some may not even be clear to the person explaining it. I will explain blockchain in vernacular below to ensure that everyone can read it. Gotta understand.

What is blockchain? Let me give an analogy. In 50 years, you can buy an electric fan from the supermarket. This electric fan will automatically mine coins for you when it is blowing. You can mine coins automatically while using the electric fan. When you use this electric fan, When the fan breaks down, you can use the mined coins to repair the electric fan. Of course, you can also use the mined coins to buy a new electric fan. Many people think wrongly! Wouldn’t the profits of merchants be less? Let me tell you about a certain brand. When the products of this brand are sold to you, the products themselves may even be sold to you at a loss. However, once the number of users becomes large and the users become more sticky, they can be paid through membership fees or service fees. Such small fees or other ways to make profits. Just like this, the mined coins can be purchased and repaired. Although the merchant's profit may be reduced, the merchant has gained more users and greater user stickiness. By this time, it only takes a minute for the merchant to make money.

And the electric fan you bought is equivalent to winding it up for you. What is winding up? If you put your electric fan on the street now, and 10 people come to snatch it, what will you do?There is no way to prove that the ownership of this electric fan is yours, and once you upload it to the chain, it is equivalent to being bound to you, and you can prove it.

Therefore, the essence of blockchain is to help make people’s lives more convenient. It is equivalent to upgrading on the basis of the Internet, making it safer and more convenient. This is blockchain! It's that simple.

The security of the blockchain is reflected in its irreversibility and the data cannot be tampered with. We all know that in today's society, any data can be modified and conquered by hackers, but the data in the blockchain is impossible to change. Once generated, it cannot be modified unless all users in the blockchain work together. Agree to modify the data, but this is unlikely to happen.

At present, the blockchain is still very immature, just like the Internet bubble burst in 2000. When the bubble bursts, a truly valuable blockchain Internet will be hatched. company.

The wheel of history will not go backwards. Many people are unwilling to accept blockchain. Just like telling you that you can shop online 20 years ago, this is the same ridiculous thing. Time will eventually prove it. .

1. The main function of blockchain is to store information. Any information that needs to be saved can be written to the blockchain and read from it, so it is a database.

2. Anyone can set up a server, join the blockchain network and become a node. In the world of blockchain, there is no central node. Every node is equal and stores the entire database. You can write/read data to any node, because all nodes will eventually be synchronized to ensure that the blockchain is consistent.

3. Everyone works on the same blockchain, everyone publicly shares the current state of the blockchain, everyone agrees on the rules for new data submission and tampering with the blockchain is prohibited. It is difficult to operate in terms of computing power.

If we assume that the database is a ledger, reading and writing the database is an accounting behavior:

Anyone can verify this public ledger, but there is no single The user can control it. Participants in the blockchain system will jointly maintain the update of the ledger: it can only be modified according to strict rules and consensus, and there is a very exquisite design behind this.

(1) Accounting, the system will find the person with the fastest and best accounting within a period of time, let this person do the accounting, and then broadcast the information on this page of the account book to everyone else on the entire network. node, which is equivalent to changing the database record; (consensus mechanism, cryptography)

(2) Verification, other valid nodes in the entire network check the correctness of the block accounting, and stamp the time Stamp to confirm that the block is legal; (timestamp, mathematics)

(3) Form a single chain, that is, compete for the next block after the previous legal block; (smart contract, encryption technology)

(4) Storage, the account book is stored in blocks, and as the transaction progresses Add, new data blocks will be appended to the existing chain to form a chain structure; (distributed structure, information technology)

(5) Backup, every participating trader is a block network Each node has a complete backup of the public account book, which is a distributed ledger.

Features

1. The blockchain has no administrator and is completely centerless. It is precisely because it cannot be managed that the blockchain cannot be controlled. Without an administrator, everyone can write data into it. In order to ensure the trustworthiness of the data: the technology of blockchain makes it impossible to tamper with the data once it is written.

2. Close to zero trust cost.

The cycle time required for Internet companies to build their credit is extremely long. For example, Taobao often takes several years to build its credit. In the blockchain, everyone trusts the code, algorithm and rules, so the cost of trust is extremely low.

3. The marginal cost of constructing and trading assets approaches zero.

If traditional assets are to be used for trading, they need to rely heavily on third parties, such as investment banks, banks, securities firms, etc., for packaging and endorsement, and the fees and thresholds are extremely high. With blockchain, these will not be a problem, and the cost is extremely low.

The value transfer attribute of the blockchain also naturally solves the payment problem, and has the genes to support global payments.

Blockchain, simply put, is the underlying technology that supports ICO (virtual currency). The popular Bitcoin is an application of ICO. In other words, the connotation of blockchain is richer, and its main features are:

1. Blockchain is equivalent to digital trust. Both parties to the transaction can independently enter into digital contracts, and companies providing blockchain services are equivalent to Digital trust company;

2. The purpose and characteristics of blockchain are "3 de-intermediaries" - de-intermediation, de-currency, de-sovereignty; yes

3. Bitcoin is An application of blockchain, Bitcoin is a cryptocurrency, and all blockchains apply digital encryption technology;

4. The "3 Go" feature is targeted at the financial industry, and only when high frequency is required Blockchain is only needed in the financial field of transactions;

5. Large platforms with a user base are more suitable for applying blockchain, and small companies’ participation is of little value, so Zuckerberg’s 2018 New Year’s wish includes To study digital cryptocurrency. Kodak also launched a digital currency, sending its stock price soaring.

Furthermore, when it comes to Bitcoin, it can be cashed out and exchanged into the currencies of most countries. Users can use Bitcoin to purchase some virtual items, or use Bitcoin to purchaseReal life objects. In this sense, Bitcoin is similar to the world's currency, close to gold.

Peter Thiel, co-founder of PayPal and an early investor in Facebook, believes that Bitcoin is "undervalued" by people and compares it to gold. He said: "If one day Bitcoin becomes the online equivalent of gold, then it will have room for appreciation."

But on January 3, the "People's Daily" published an article saying, "Whether it is from The increase can still be seen from the value of the currency itself. There is a bubble in the price of Bitcoin. This is an issue that needs no discussion." Data show that in the past 2017, Bitcoin has skyrocketed and plummeted: within a year, the price skyrocketed about 20 times, and in one day It fell more than 40% within the period.

Indeed, Bitcoin has risks. However, blockchain with richer connotations obviously still has greater room for development.

Last night, screenshots of Xu Xiaoping, founder of ZhenFund, encouraging the embrace of the blockchain revolution in an internal group were posted online. In his view, the blockchain revolution has indeed arrived. “I strongly encourage everyone internally to embrace the blockchain revolution and learn blockchain technology. This is my understanding after long-term observation and thinking. I feel responsible to tell our entrepreneurs. I don’t want my understanding of blockchain The views have been misunderstood as views on ICO."

However, in the context of Internet companies and investment institutions collectively entering the market, the government will definitely take measures.

Recently, the U.S. Securities and Exchange Commission (SEC) has expressed concerns about this and shelved the proposal of two U.S. companies to launch a Bitcoin exchange-traded fund (ETF).

In fact, this is only a matter of time. Because the "three-go" feature of blockchain is inherently contradictory to government centralization.

⑵ How should investors face the recent downturn in the Bitcoin market?

How should investors face the recent downturn in the Bitcoin market?

In recent times, the editor has discovered such a phenomenon. The digital currency that became popular in 2017 has now begun to "dissipate", while the underlying technical architecture of digital currency-blockchain technology is gaining momentum. fierce. This situation can be seen clearly from the current exposure of these two words on industry websites.

Judging from the frequency of articles written by the editor, blockchain technology has increasingly become a "hot word" in my articles, and it seems that the current situation of digital currency has not been discussed for a long time. Readers and friends shared it together. Could it be said that digital currency will eventually encounter a "Waterloo" under the "high pressure" of blockchain technology?

Bitcoin search volume plummeted

However, this is generally true. Especially due to the recent long period of time, since governments from various countries have successively implemented strict policy measures, the price situation of major mainstream digital currencies has been declining.After a setback, it will never be able to regain the "grand situation" of hitting the peak of US$20,000. Not only is the price intuitively displayed, but the search volume of Bitcoin has also faced a "precipitous decline" in recent months, with the decline reaching 80%.

The picture comes from the Internet

Of course, this is not the editor’s nonsense. At the end of 2017, the price of Bitcoin soared to $19,000. According to statistics at the time, the search volume for Bitcoin as a keyword on Google once jumped 100%; however, as the price of Bitcoin continued to fall, the search volume for Bitcoin on Google also continued to decrease accordingly. From the search volume alone, it can be confirmed that the popularity of Bitcoin is indeed less than the "brilliance" at the end of 2017.

Quoting statistics from Bloomberg Business Weekly: According to the period from March 2017 to March 2018, the proportion of Bitcoin searches dropped by just one percent since the historical price peak in December last year. Within months, the search proportion dropped to 47%. Recently, the search volume of keywords has dropped to 16%, a decline of as much as 80%. In addition, Ken Rogoff, the former chief economist of the International Monetary Fund (IMF), also recently predicted that the price of Bitcoin will plummet, and said: "In 10 years from now, Bitcoin will The currency value will be much less."

Bitcoin price fell below the $9,000 mark

It is true that Bitcoin search volume is declining. However, the underlying reason still comes from the decline in Bitcoin market price. Before the editor's deadline, the price of Bitcoin had fallen below the important mark of $9,000. Looking at the entire digital currency market, the prices of other digital currencies have also generally fallen.

Data from industry website Bitfinex shows that the price of Bitcoin has been hovering at the $9,000 node in the recent period. On March 9, Bitcoin once broke through the important node of $10,000. But it didn't last long, and the price of Bitcoin began to continue its downward trend again. So far, Bitcoin has tried several times to hit the important mark of $10,000, but has failed. Today, it even fell below the current level of $9,000.

Investors who pay attention to the digital currency market all know that once the price trend of Bitcoin, the "leader", drops, the prices of other digital currencies will definitely fall accordingly. Among the other mainstream digital currencies, Ethereum fell by 6.01% and was quoted at US$684.23 before the deadline; Ripple fell by 5.51% and was quoted at US$0.79 by the deadline; Bitcoin Cash fell by 9.34% and was quoted at US$1,029.47 by the deadline; Lite The currency fell by 7.29%, and was quoted at US$176.60 at the time of writing.

In addition, according to the Bitfinex data platform, the net outflow of Bitcoin has reached 345 million yuan, while the net inflow of Bitcoin is only 2.05 billion yuan. From the above net fund inflows and outflows on the Bitfinex platform, we can also see that the Bitcoin market is indeed in a downturn. The falling prices in recent days have directly led to unstable sentiment in the digital asset market. Therefore, many investors who are not "firm" believe that it is safer to withdraw funds. However, we should also not ignore that there are also many net inflows of funds. This shows that bargain hunting funds still exist in the Bitcoin market. That means there is still the possibility of a "comeback" in the overall market. Just based on the current situation, the overall price is volatile and unstable.

Bitcoin futures follow the decline

The continued decline in the price of Bitcoin has naturally caused the futures market based on Bitcoin to also begin to suffer a continuous decline. Data shows that in the past five days, Bitcoin futures have fallen close to the $9,000 mark. The overall decline this week has exceeded 17%.

Bitcoin futures on the CME Futures Exchange closed down approximately US$385, and are currently quoted at US$9,015. The closing price this week has fallen by approximately 20.33%; Bitcoin futures on the CBOE Futures Exchange closed down approximately US$305. The U.S. dollar is currently quoted at $9,135, and its closing price this week fell by approximately 17.07%.

The current Bitcoin market may be good for the public

Facing the fact that Bitcoin has dropped from the "altar" in terms of popularity and price, what should we, as investors, do? What is your mentality to face the current downturn? In the editor's opinion, the decline in digital currency prices may also be a good thing for the development of the entire digital asset field.

In any case, after Bitcoin experienced its golden period at the end of 2017, it spread a new wave of digital currency around the world. In other words, both investors entering the market and onlookers on the sidelines have now heard and understood the name Bitcoin, and have begun to pay attention to the development trends of Bitcoin. Simply put, it shows that Bitcoin has established a deep mass base.

Looking back at the period when the price of Bitcoin soared in 2017, how many investors were "fighting" to squeeze into this circle of wealth myths. However, the high investment prices turned many digital currency enthusiasts away. Keep out the high walls. Now that the price of Bitcoin has stabilized and has stepped down from the altar, this has given a possibility to many investors who had previously planned to participate in digital assets. The current Bitcoin price is a good opportunity for those who have been watching from a distance but are entangled in the price to enter the market.

Just imagine, if the price of Bitcoin remains high, it is destined to be just a "toy" for a small circle of people. For the general public, it can only be seen from a distance but cannot be touched up close. However, as the price of Bitcoin falls back, this tells us the following message: more and more investors can enter the market with capital and return to the original intention of "all people playing currency". Try to get more people to participate in and accept Bitcoin, rather than just a small group of people.

Look at the overall situation and look at the future

In addition, the editor has always emphasized that playing with digital currencies does not mean just looking at the rise and fall of the price of the digital currency, which is actually tantamount to disguised gambling. Therefore, when we talk about digital currencies, we We should focus more on its potential, its development, and its future.

Although, the editor does not deny that Bitcoin is a combination of high returns and high risks. Isn’t this often said in the currency circle? A word?" After falling down, he went to work in the sea and became a young model in the club. "Although this sentence sounds a bit vulgar at first, it does vividly express the two extremes of digital currencies: either skyrocketing or plummeting. In recent years, the price range has tended to be stable. The editor believes that this is actually It is the healthiest development model of digital currency.

In the industry, some people once said that Bitcoin is a bubble economy, without any economic backing, and its price will almost certainly collapse. It has also been said that Bitcoin is a bubble economy without any economic backing. Some people will say that Bitcoin has no value at all, and mining is a serious waste of social energy, but there is no physical object to measure the value of digital currencies. Some people also believe that the severe crackdown on large-scale government regulatory policies around the world is doomed to digital currencies. It is difficult to survive in the cracks.

Maybe the editor, as an ordinary digital currency enthusiast, cannot influence the opinions of the industry leaders, nor does he have the long-term vision of the industry leaders, but I personally control it. Looking at the development history of digital currency in recent years, it must have some value. Personally, I always believe that as investors, price may be what we are most concerned about, but it should not be all we pay attention to.

Perhaps, the future of digital currency is not yet known, but the emergence of blockchain technology will definitely be a disruptive technical system. But all of this is based on Bitcoin being the first to put it into practice. Therefore. , facing the current very sluggish Bitcoin market, the editor still recommends that investors calm down and look at the development of the entire industry with a dialectical attitude, instead of just focusing on how much it has risen or fallen today. .

[This article is original, if you need to reprint, please note the source and the author of the Toutiao column: Coin Chain World]

⑶ Blockchain technology

Background: After the birth of Bitcoin, it was discovered that the technology was very advanced and blockchain technology was discovered. Bitcoin and blockchain technology were discovered at the same time.

1.1 The purpose of the birth of Bitcoin:

① Currency transactions have records, that is, ledgers;

② Disadvantages of centralized institutions’ accounting—can be tampered with; Yi Chaofa

Bitcoin solves the first problem: anti-tampering ——Hash function

1.2 Hash function (encryption method)

① Function: Convert a string of any length into a fixed-length (sha256) output. The output is also called hash value.

② Features: It is difficult to find two different x and y, such that h(x)=h(y).

③Application: md5 file encryption

1.3 Blockchain

①Definition

Block: Split the general ledger into zones Block storage

Blockchain: On each block, add a block header. It records the hash value of the parent block. By storing the hash value of the parent block in each block, all blocks are connected in order to form a blockchain.

②How does the blockchain prevent transaction records from being tampered with?

After the blockchain is formed, tampering with any transaction will cause the hash value of the transaction block to be different from that of its sub-blocks. , tampering was discovered.

Even if you continue to tamper with the hash value in the sub-block header, the hash value in the sub-block will be different from that in the grandchild block, and the tampering will be discovered.

1.4 The essence of blockchain

①The essence of Bitcoin and blockchain: a big ledger visible to everyone, only recording transactions .

②Core technology: Through cryptographic hash function + data structure, it ensures that the ledger records cannot be tampered with.

③Core function: Create trust. Fiat currency relies on government credibility, and Bitcoin relies on technology.

1.5 How to trade

① To conduct transactions, you need an account number and password, corresponding to the public key and private key

Private key: a string of 256-bit binary numbers , no application is required to obtain it, and you don’t even need a computer. You can generate the private key by tossing a coin 256 times.

The address is converted from the private key. The address cannot reverse the private key.

The address is the identity, which represents the ID in the Bitcoin world.

After an address is generated, it can only be known by everyone if it enters the blockchain ledger.

②Digital signature technology

Signature function sign (Zhang San’s private key, transfer information: Zhang San transfers 10 yuan to Li Si) = signature of this transfer

< p> Verify Korean verify (Zhang San’s address, transfer information: Zhang San transfers 10 yuan to Li Si, signature of this transfer) = True

Zhang San uses his own signature function sign() The private key signs this transaction.

Anyone can verify whether the signature was issued by Zhang San himself who holds Zhang San's private key by verifying the Korean vertify(). It returns true, otherwise it returns false.

sign() and verify() are cryptographically guaranteed not to be cracked. ·

③ Complete the transaction

Zhang San will make the transfer information and signature available to the entire network. Under the premise that the account has a balance, after verifying that the signature is true, it will be recorded in the blockchain ledger. Once recorded, Zhang San's account will be reduced by 10 yuan, and Li Si's account will be increased by 10 yuan.

Supports one-to-one, one-to-many, many-to-one, and many-to-many transactions.

In the Bitcoin world, private keys are everything! ! !

1.6 Centralized Accounting

① Advantages of Centralized Accounting:

a. No matter which center keeps accounts, don’t worry too much

< p> b. Centralized accounting, high efficiency

②Disadvantages of centralized accounting:

a Denial of service attack

b Stop service after getting tired

p>

c Central institutions are vulnerable to attacks. For example, destroying servers and networks, committing self-intrusion, legal termination, government intervention, etc.

All attempts at confidential currencies with centralized institutions in history have failed.

Bitcoin solves the second problem: how to decentralize

1.7 Decentralized accounting

①Decentralization: Everyone can keep accounts. Everyone can keep a complete ledger.

Anyone can download open source programs, participate in the P2P network, monitor transactions sent around the world, become an accounting node, and participate in accounting.

② Decentralized accounting process

After someone initiates a transaction, it is broadcast to the entire network.

Each accounting node continues to monitor and continue transactions across the entire network. When a new transaction is received and the accuracy is verified, it is put into the transaction pool and continues to be propagated to other nodes.

Due to network propagation, the transactions of different accounting nodes at the same time are not necessarily the same.

Every 10 minutes, one person is selected from all accounting nodes in a certain way, and his transaction pool is used as the next block and broadcast to the entire network.

Other nodes delete the transactions that have been recorded in their own transaction pool based on the transactions in the latest block, continue accounting, and wait for the next selection.

③ Features of decentralized accounting

A block is generated every 10 minutes, but not all transactions within these 10 minutes can be recorded.

The accounting node that obtains the accounting rights will be rewarded with 50 Bitcoins. After every 210,000 blocks (approximately 4 years), the reward is halved. The total amount is about 21 million, and it is expected to be mined in 2040.

Recording the reward of a block is also the only way to issue Bitcoin.

④ How to allocate accounting rights: POW (proof of work) method

Compete for accounting rights by calculating mathematical problems on several accounting points.

Find a random number that makes the following inequality true:

There is no other solution except traversing the random numbers starting from 0 and trying your luck. The process of solving the problem is also called mining.

Whoever solves the problem correctly first will get the accounting rights.

If a certain accounting node finds the solution first, it will announce it to the entire network. After other nodes verify that it is correct, a new round of calculation will start again after the new block. This method is called POW.

⑤ Difficulty adjustment

The generation time of each block is not exactly 10 minutes

As Bitcoin develops, the computing power of the entire network does not increase.

In order to cope with changes in computing power, the difficulty will be increased or decreased every 2016 blocks (about 2 weeks), so that the average time for each block to be generated is 10 minutes.

#欧易OKEx# #BTC[超话]# #digital currency#

⑷ What else are there in the blockchain industry media besides Golden Finance and Currency World

Xiaolian Finance is also doing well

⑸ What are the well-known domestic blockchain media

There are 1,960 information-type blockchain networks in China and 1,960 overseas. There are more than 90,000 of them. If you directly access the "Blockchain Network" in China, you will see a large number of information blockchain websites like "Blockchain XX Network".

⑹ Is virtual currency investment reliable? Is it blockchain? Will I be cheated?

Virtual currency is now in the research stage in various countries, and blockchain is being studied by large companies. Large companies have venture capital and will not find ordinary people to invest, so the virtual currencies and blockchains that ordinary people can invest in are all fake.

⑺ What exactly is blockchain

What is blockchain?
Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. The so-called consensus mechanism is a mathematical algorithm that establishes trust and obtains rights and interests between different nodes in the blockchain system [1].
Blockchain is an important concept of Bitcoin. It is essentially a decentralized database and serves as the underlying technology of Bitcoin. The blockchain is a series of data blocks generated using cryptographic methods. Each data block contains information about a Bitcoin network transaction and is used to verify the validity of its information (anti-counterfeiting) and generate the next block.
The blockchain was born from Satoshi Nakamoto’s Bitcoin. Since 2009, various types of blockchain have emerged.Bitcoin’s digital currencies are all based on public blockchains.
The current situation of digital currency is that a hundred flowers are blooming. Here are some common ones: bitcoin, litecoin, dogecoin, dashcoin. In addition to currency applications, there are also various derivative applications, such as Ethereum, Asch and other underlying application development platforms, as well as NXT , SIA, BitShares, MaidSafe, Ripple and other industry applications.
On January 20, 2016, the People’s Bank of China Digital Currency Seminar announced that it had achieved phased results in digital currency research. The meeting affirmed the value of digital currency in reducing the issuance of traditional currency and stated that the central bank is exploring the issuance of digital currency. The expression of the People’s Bank of China’s Digital Currency Seminar has greatly enhanced the confidence of the digital currency industry. This is the first time that the five central bank ministries and commissions have expressed a clear attitude towards digital currencies since they issued a notice on preventing Bitcoin risks on December 5, 2013. [4]
On December 20, 2016, the Digital Currency Alliance - China FinTech Digital Currency Alliance and FinTech Research Institute were officially established, with Huobi being one of the co-initiators. [5]
Some areas where blockchain can be used are:
▪ Smart contracts
▪ Securities trading
▪ E-commerce
▪ Internet of Things
▪ Social communication
▪ File storage
▪ Proof of existence
▪ Identity verification
▪ Equity crowdfunding
We can compare the development of blockchain to the development of the Internet itself , something called finance-internet will be formed on the Internet in the future, and this thing is based on blockchain, and its precursor is bitcoin, that is, traditional finance starts from private chains and industry chains (local area network), and the bitcoin series starts from public chains (Wide Area Network), they all express the same concept - digital assets (Digital Asset), and finally converge to an intermediate balance point.
The evolution of blockchain is:
▪ Blockchain 1.0 - digital currency
▪ Blockchain 2.0 - digital assets and smart contracts
▪ Blockchain 3.0 ——The implementation of distributed applications in various industries
Blockchain is divided into three categories, which is introduced in detail in the book "Blockchain: Defining the New Pattern of Future Finance and Economics" [2] issued by Currency, < br />Hybrid blockchains and private blockchains can be considered as broad private chains:
Public Blockchains (PublicBlockChains)
Public BlockchainsChain means: any individual or group in the world can send transactions, and the transactions can be effectively confirmed by the blockchain, and anyone can participate in its consensus process. The public blockchain is the earliest blockchain and the most widely used blockchain. The virtual digital currencies of all major bitcoins series are based on the public blockchain. There is only one blockchain corresponding to this currency in the world. .
Consortium (Industry) Blockchain (ConsortiumBlockChains)
Industry Blockchain: Multiple preselected nodes are designated within a certain group as bookkeepers, and the generation of each block is jointly performed by all preselected nodes. Decision (pre-selected nodes to participate in the consensus process), other access nodes can participate in transactions, but do not participate in the accounting process (essentially still managed accounting, just become distributed accounting, how many pre-selected nodes, how to determine the number of each block The bookkeeper becomes the main risk point of the blockchain), and anyone else can conduct limited queries through the open API of the blockchain.
Private Blockchain (privateBlockChains)
Private Blockchain: Only uses the general ledger technology of the blockchain for accounting. It can be a company or an individual, and has exclusive access to the writing of the blockchain. With access permissions, this chain is not much different from other distributed storage solutions. (Dec2015) Conservative giants (traditional finance) all want to experiment with private blockchains, while public chain applications such as Bitcoin have been industrialized, and private chain application products are still being explored.

⑻ Which blockchain game is the most profitable?

Better blockchain games include: Link Pocket, Gold Nugget Chain, Link Line, Mining Chain, etc.

NO.1: LinkToken
The blockchain software officially produced by Xunlei has a large platform and a large number of users. From the birth of LinkToken in 2017, LinkToken has been used as an incentive tool in the shared computing ecosystem. On the one hand, it serves as a proof of work for shared computing resources to reward users and exchange for goods related to shared computing resources in closed scenarios or service; on the other hand, as proof of consumption of shared computing resources, merchants give it back to users in closed scenarios. Specifically, merchants use LinkToken to obtain idle computing resources contributed by users, and users use LinkToken to redeem shared computing-related products and services, such as video website membership privilege services, network acceleration services, cloud storage services, shared content services, Game content services, etc.
NO.2: Gold Nugget Chain
Blockchain technology + Xianxia Intelligent Retail Terminal shared entrepreneurial platform provides open, fair, transparent and non-tamperable entrepreneurial opportunities for sharing partners. Gold Nugget Chain GBT follows the route of China's local innovation. All blockchain development technologies and applications are completed through the cooperation of domestic technical teams. In the current development of global blockchain dominated by the West, it retains the power of Eastern wisdom and sunshine.
Gold Nugget Chain GBT will adhere more to research based on global blockchain development technology and application. The company will conduct blockchain development technology and application after obtaining industrial and commercial registration business scope.On the basis of this, and working hand in hand with the World Digital Central Bank, it has been recognized by consular sovereign countries including 165 countries, laying a solid foundation for the development of GBT international blockchain.
NO.3: Lianxing
A professional trading platform for global digital investors, real offline company registration. Founded in 2016, Lianxing is a digital asset trading platform independently operated and developed by Bilin Network Technology Co., Ltd. The main purpose of creating Lianxing is to become a platform where everyone can trade digital assets.
With the purpose of providing professional asset management solutions for circulating high-quality digital assets issued on the blockchain such as Bitcoin and Ethereum, it relies on its own strong strength and jointly develops special trading indicators with a number of companies.
NO.4: Mining Chain
The software of Mining Chain Network focuses on the blockchain industry and builds a media service platform for Mining Chain Flash News and Mining Chain Index through big data. Shanghai Dilian Technology Co., Ltd. was established on December 14, 2017. The WT system of Dilian.com can bring the most direct benefits to users. Based on the completion of daily tasks, users can obtain corresponding mining power values, and these values ​​​​are gathered into the mining power pool generated by users every day, and are finally calculated according to a fixed and unchangeable formula to obtain the final WT accumulation to in the user account.
The core section of the Mining Chain Network - the Mining Chain Index, uses 45 dimensions of data to provide a complete analysis of a currency. The self-owned big data algorithm integrates and analyzes data from thousands of currencies and hundreds of exchanges to present users with the most valuable comprehensive index based on chain mining index, mining index, manipulated index, short-term investment index, etc. analyze.
NO.5: ChainDD
A professional blockchain platform under Titanium Media Group, big data analyzes comprehensive market information. ChainDD, owned by Titanium Media Group, is the most authoritative and professional blockchain information and data rating platform. It provides a full range of blockchain content and data services from industry headlines, in-depth insights, lightning news, real-time market conditions, in-depth project dismantling and other dimensions, allowing you to understand the real blockchain world in one stop.
ChainDD has upgraded from a blockchain media information product to a blockchain financial data and information product dominated by market conditions and blockchain application databases. A new version of the ChainDD App Android version has been launched.
NO.6: Coin World
Digital currency investment world is committed to making investment decisions simpler. Beijing Bishijie Network Technology Co., Ltd. was established on August 28, 2017. Bishijie provides real-time price information of digital currencies such as Bitcoin and blockchain, allowing users to quickly obtain the market price information of Bitcoin and blockchain.
In addition to leading industry information, it also has a social + personalized currency circle and real-time market quotations with intelligent tracking. It has become the product with the largest number of users in China and South Korea. The English version of Coin World has landed in the European and American markets, and products for markets such as Southeast Asia are also in preparation.
NO.7: Babbitt
One of the earliest Bitcoin platforms in China, promoting the development and innovation of blockchain in China. Babbitt was founded in 2011 and isThe earliest blockchain information community portal in China provides information, communication, investment and financing services to blockchain entrepreneurs and investors. Openness is our breadth, neutrality is our attitude, and sensitivity is our depth. We welcome all discussions and debates on blockchain technology. Currently, more than 200 blockchain opinion leaders and researchers are stationed on the platform.
The platform gathers blockchain technology and application trendsetters. It has now developed into an ecosystem platform that integrates information content, offline activities, training, incubators, investment and blockchain technology implementation. The entire network covers more than 1 million users in mainland China, South Korea, Japan, the United States, Hong Kong and other countries and regions.
NO.8: Kuailian Planet
Covers diverse participants in the blockchain world, creates a node-based content system, and builds a more complete blockchain ecosystem based on the distribution structure. Keda Group Co., Ltd., a subsidiary of Kuailian Planet, gathers the top industry leaders to provide the fastest and most professional blockchain information, market trends, and project evaluation blockchain portal content platforms. By providing professional and valuable Information services, building a node-based value ecosystem around industry leaders. At the same time, through the complete blockchain encryption storage technology reward system, value contributor reward system and various blockchain technology reward systems, Kuailian Planet will build a complete data value ecology. Diverse user data and content data truly release the fair value of data assets on the platform.
NO.9: NetEase Planet
The blockchain-based ecological value sharing platform launched by NetEase Finance manages user digital assets through blockchain encrypted storage technology. NetEase Planet helps you manage digital assets through blockchain encrypted storage technology, making your data truly yours. Each of us is producing useful behaviors all the time. Credit data, attention, and Internet traces are all important personal data assets, including social interaction, entertainment, shopping, travel, etc., and these assets have not been used in the past. Be valued by individuals.
Now Planet Base builds your identity as a planet resident, helps you discover your own value, and enables the value of personal information to be reflected fairly and equitably. The purpose of Planet Base: Let value contributors participate in value sharing.
NO.10: Huobi
Shareholders of many world-renowned companies such as Apple and Alibaba invest to provide trading and investment services in digital products. Since the establishment of Huobi Global in 2013, the cumulative transaction volume of the Huobi platform has exceeded US$1 trillion, and it once became the world's largest digital asset trading platform, accounting for 50% of the world's digital asset trading share. It has successively acquired ZhenFund and Sequoia Capital. invest. Currently, Huobi Group has invested in more than 10 upstream and downstream companies, and has completed the establishment of compliance service teams in Singapore, the United States, Japan, South Korea, Hong Kong, Thailand, Australia and other countries and regions, serving more than 130 countries around the world. It provides safe and trustworthy digital asset trading and asset management services to millions of users.