What the bitcoin correctly describes is

1. The definition of bitcoin in Chinese law:
according to the regulations on the administration of RMB, the proction and sale of token tickets are prohibited. Because there is no clear judicial interpretation of the definition of token ticket, if bitcoin is included in the "token ticket", the legal prospect of bitcoin in China will face uncertainty< On June 4, 2009, the notice of the Ministry of culture and the Ministry of Commerce on strengthening the management of virtual currency in online games (Wen Shi Fa [2009] No. 20) stated that the scope of application of virtual currency in online games was defined for the first time, and a distinction was made between the current virtual currency in online games and the virtual props in games; At the same time, the notice said that the "notice" stipulates that enterprises engaged in related services must be approved before they can operate
in China, some Taobao stores have begun to accept the use of bitcoin, and the number of businesses will graally increase
in October 2013, the first bitcoin quarterly, one bit, was released
on October 15, 2013, the network accelerator service of the network announced its support for bitcoin
on October 26, 2013, btcmini reported that GBL was hacked
on October 31, 2013, Lei Teng, a famous Internet lawyer, proposed the event of "filing a case to investigate the closure of GBL bitcoin trading platform as soon as possible", analyzed the "value function" and "use function" of bitcoin, and bitcoin should be governed by relevant laws.

2. Throughout history, there have been cases of gold, goods and even land confiscation in times of crisis. It is also disturbing that, as we have seen in Venezuela, people there are struggling with high inflation. Sometimes it is extremely difficult to convert money into another currency, which makes people feel helpless and can only watch their life savings be worthless. Bitcoin is very different. It is in electronic form and has no boundary restrictions. It can be transferred without any intermediary. Anyone who connects to a mobile device or the Internet can use it. All transactions are permanently recorded in the public ledger, and there is no dispute about ownership
in a recent article in the New York Times, a Venezuelan economist described how bitcoin became a part of Venezuela's daily life, so that on a mainstream bitcoin trading platform, Venezuela's trading volume ranked second only to Russia in the world. But bitcoin is not just used to protect wealth in extreme conditions. In general, bitcoin is also an excellent choice for portfolio diversification, and it should be seen as part of a comprehensive wealth preservation strategy.

3.

Transaction mode of bitcoin

bitcoin is e-cash similar to e-mail, and both parties need "bitcoin wallet" similar to e-mail and "bitcoin address" similar to e-mail address. Just like sending and receiving e-mail, the remitter pays bitcoin directly to the other party through a computer or smart phone according to the recipient's address. The following table lists some websites that download bitcoin wallets and addresses for free

a bitcoin address is a string of about 33 characters long, consisting of letters and numbers, always starting with 1 or 3, such as & quot& quot; Bitcoin software can generate address automatically, and it doesn't need to exchange information online, so it can be offline. More than 2 bitcoin addresses are available. Figuratively speaking, there are about two grains of sand in the world. If there is an earth in each grain of sand, then the total number of bitcoin addresses far exceeds the number of all the sand on all these "earths"

the bitcoin address and private key appear in pairs, and their relationship is just like the bank card number and password. A bitcoin address is like a bank card number, which records how much bitcoin you have on it. You can generate bitcoin address at will to store bitcoin. When each bitcoin address is generated, a corresponding private key of the address will be generated. This private key proves that you have ownership of the bitcoin at that address. We can simply understand the bitcoin address as the bank card number, and the private key of the address as the password of the corresponding bank card number. Only when you know the bank password can you use the money on the bank card number. Therefore, please keep your address and private key when using bitcoin wallet

after the transaction data of bitcoin is packaged into a "data block" or "block", the transaction is initially confirmed. When a block is linked to a previous block, the transaction is further confirmed. After six block confirmations in a row, the transaction was irreversibly confirmed. Bitcoin P2P stores all transaction history in a "blockchain.". The blockchain continues to extend, and once new blocks are added to the blockchain, they will not be removed. Blockchain is actually a distributed database composed of a group of scattered client nodes and all participants, which is a record of all bitcoin transaction history. Nakamoto predicts that when the amount of data increases, users hope that not all the data will be stored in their own nodes. In order to achieve this goal, he uses the hash function mechanism. In this way, the client will be able to automatically eliminate those parts that it will never use, such as some very early bitcoin transactions

4. Bitcoin system mainly uses hash algorithm and asymmetric encryption algorithm in cryptography to ensure the security of the transaction: on the premise of the transaction information being open in the whole network, the one-way property of hash algorithm protects the privacy information of both sides of the transaction; Asymmetric encryption algorithm can ensure that your bitcoin will not be transferred to other people's pocket ring the transaction< In theory, these cryptography principles can guarantee the realization of bitcoin's basic functions as a "decentralized currency", but it has some problems:
the first problem is system security:
we say that in the world of bitcoin, all information is expressed in the form of code through hash operation
then, where there is code, there must be loopholes, which give hackers an opportunity to take advantage of
as early as 2010, shortly after the emergence of bitcoin, a hacker took advantage of the vulnerability of bitcoin's core software to create hundreds of billions of bitcoins. It's like a person mastering the banknote printing machine. It's terrible. Or, hackers directly hack into our computers and steal our private keys, which will also cause us heavy losses
the second problem is that the transaction processing speed is too slow:
in the bitcoin system, there are up to seven transactions per second, which obviously can not meet the normal transaction requirements. We need to know that Alipay, Taobao and WeChat can handle hundreds of thousands or even millions of transactions every second. A deal can only be processed in 1-2 seconds. If bitcoin is used for daily money, then we will pay 1-2 yuan to handle it successfully.
the third problem is that bitcoin mining consumes too much power: Mining requires professional mining machines, which have high computing power, but consume a huge amount of power. Moreover, according to the current market, it is difficult to recover the cost of buying a mining machine for a year. Therefore, some people doubt: what is the significance of consuming so much power to maintain a system with such slow trading speed
the fourth problem is the regulatory attitude:
at present, the attitude of various countries towards bitcoin is very polarized: the supporting countries and retail stores accept bitcoin for payment, and there are also bitcoin ATMs; Countries that don't support it will crack down on it
to sum up, if bitcoin is measured by a monetary system, it must have various shortcomings. However, we can not deny the brilliance of bitcoin: bitcoin represents not only a new set of "decentralized" currency system, but also the origin of blockchain technology and a new ideology, which has far-reaching influence
from the perspective of bitcoin's own function currency:
bitcoin is the largest digital currency so far. It is an important application in the era of blockchain 1.0 and the first application of blockchain. Under the premise of decentralization, bitcoin realizes the functions of digital currency in the stages of issuance, payment and circulation, which is a new means of payment
from the perspective of bitcoin's underlying technology, blockchain:
with the increasing attention of bitcoin, blockchain, as its underlying technology, is becoming more and more well known by the public. Blockchain has graally separated from digital currency and penetrated into many commercial fields. Different instries hope to apply bitcoin Technology to our real life, Through a variety of application scenarios, let us get a better experience
from the perspective of bitcoin ideology:
it has set off a great ideological storm. The "decentralization" and consensus mechanism of bitcoin is a new ideology in the current centralized society. Throughout history, whether the Renaissance or the enlightenment, these are all ideological changes under specific historical conditions. The popularization of these new ideas and new consciousness will take a long time to be accepted by all. In terms of the influence of bitcoin:
digital currency has been accepted and recognized by some national markets, resulting in a large number of digital currency trading platforms and the emergence of a large number of counterfeit currencies. These counterfeit currencies have further evolved into a new financing mode, writing the myth of sudden wealth, which has also led to the proliferation of cheating under the banner of digital currency, such as air currency and pyramid selling currency
in short, bitcoin has outlined a grand blueprint, that is, the currency in the future will no longer depend on the release of central banks, but on the global currency unification. However, from the current situation, the blockchain 1.0 era, represented by bitcoin, only meets the basic functions of digital currency and cannot be popularized to other instries
however, in a word, bitcoin: there are shortcomings in the United States and China, and it is hard to cover up the edge.

5. The premise of foreign exchange is real foreign exchange. Foreign exchange is used to hedge against international currency and push your money to the international market. Digital currency is private disk, gambling

6.

1. Bitcoin's long-term investors are turning into short-term investors

2. The transfer of wealth is behind the soaring price

3. Most of the transactions of bitcoin come from exchanges, and a large number of them are used in the real economy

4

Banks are not willing to cooperate with cryptocurrency companies and exchanges, and many operations are compliant

extended information:

purchase method:

users can buy bitcoin, at the same time, they can also use the computer to "mine" bitcoin according to the algorithm. When users "mine" bitcoin, they need to search for 64 bit numbers by computer

and then, by repeatedly solving mysteries, compete with other gold miners to provide the required numbers for the bitcoin network. If the user's computer successfully creates a set of numbers, it will get 25 bitcoins

e to the decentralized programming adopted by the bitcoin system, only 25 bitcoins can be obtained every 10 minutes, and by 2140, the maximum number of bitcoins in circulation will reach 21 million. In other words, bitcoin system is able to achieve self-sufficiency, resist inflation through coding, and prevent others from destroying these codes

7. Bitcoin has been hyped and operated by various platforms all over the world. It is a kind of "special currency" recognized by more and more investors. At present, it has no national boundaries and is also decentralized. Speculators want to regard it as an international currency for global circulation
at present, there are many investors participating in the speculation, and the current price is also very high, and the price has been rising all the way in recent years; In addition, e to its high speculation and large price fluctuation, some investors have made a fortune, while others have lost money. In short, the current speculation and development of bitcoin have deviated from the correct direction, deviated from the original design intention, and may be further and further away from the expected goal
therefore, people should take an objective and rational attitude towards bitcoin. They can't regard bitcoin as a God and deify it too much in front of the life-saving straw of making a fortune. They think that the pie of a villa with one coin will fall from the sky. In fact, it is very risky to participate in speculation. Just like the stock market, only a few people make money after all; Moreover, e to a small number of manipulation, there are also many investment traps. Investors must be careful of risks.

8. Bitcoin is characterized by anonymity, global access and decentralization, so bitcoin has its value
the value of bitcoin:
1. Avoid war, keep value, etc. If a country is in chaos, bitcoin will become the first choice for many people. Although gold is more stable, it is not convenient to carry. If the country is in chaos, who dares to carry a lot of valuables out? But bitcoin is different, as long as you remember the key of the wallet (many wallets are written with mnemonic words), even if you go empty handed, arrive at a safe place to download a wallet, and enter the correct key to take it out
2. It is used in some gray instries. For example, in the year of 17, the global computer virus blackmail event was bitcoin for blackmail
of course, there are others, mainly these.

9. The concept of bitcoin was first proposed by Nakamoto in 2009. According to Nakamoto's idea, open source software was designed and released, and P2P network was built on it. Bitcoin is a kind of P2P digital currency.

10. All round strike!