Disadvantages of virtual currency
(1) bitcoin was originally a kind of network virtual currency to buy real-life goods
(2) advantages:
< UL >completely decentralized, without issuing institutions, it is impossible to manipulate the number of issues
anonymity, tax exemption and supervision free
robustness. Bitcoin is completely dependent on P2P network and has no distribution center, so it cannot be shut down externally
cross border
it's difficult for the cat to survive
(3) disadvantages:
< UL >the vulnerability of trading platform
transaction confirmation takes a long time
the price fluctuates greatly
the public did not understand the principle, and the traditional financial practitioners resisted
disadvantages: the trading platform is vulnerable to hacker attacks, the block chain leads to long transaction confirmation time, and the current speculation is very large. Recently, a special document has been issued to rectify the bitcoin trading platform.
Advantages and disadvantages of e-money
advantages:
1, convenience
2, security
3, general
4, increasing social benefits
disadvantages:
1, strong support from a third party
2, new risks
3, limited scope of use
e-money is based on electronic computer technology for storage, payment and circulation; It can be widely used in the fields of proction, exchange, distribution and consumption; Set financial savings, credit and non cash settlement and other functions as one; E-money is easy to use, safe, fast and reliable; At present, the use of e-money usually takes bank card (magnetic card, smart card) as the media
extended data
e-cash exists in the form of digital information and circulates through the communication network. In its life cycle, e-cash goes through three processes: withdrawal, payment and deposit, involving users, businesses and banks
the basic circulation mode of e-cash: the user and the bank execute the withdrawal agreement to withdraw e-cash from the bank, the user and the merchant execute the payment agreement to pay e-cash, and the merchant and the bank execute the deposit agreement to deposit the e-cash obtained from the transaction into the bank
source of reference: Internet - e-cash
1. It needs strong support from a third party. E-money needs the support of computer network platform. Without platform support, e-money cannot be used
2. There are security risks between the platform and the third party
The range of application is limited. In the current real life, many places still can not use bank deposits and electronic money, such as buying vegetables in the market, must pay cash and so on
features
(1) based on computer technology, it stores, pays and circulates data
(2) it can be widely used in the fields of proction, exchange, distribution and consumption (3) it integrates multiple functions such as financial savings, credit and non cash settlement (4) e-money is easy to use, safe, rapid and reliable(5) at present, the use of e-money usually uses bank cards (magnetic cards, smart cards) as the media
advantages
(1) convenience
(2) security
(3) general
in e-commerce, the bank is the link between proction enterprises, commercial enterprises and consumers, which plays a vital role. Whether the bank can effectively realize e-payment has become the key to the success of e-commerce. Taking a simple online transaction process as an example, firstly, the buyer sends a shopping request to the seller
the seller sends the buyer's payment instruction to the seller's acquiring bank through the payment gateway; The acquiring bank obtains the authorization from the issuing bank through the bank card network, and sends the authorization information back to the seller through the payment gateway; After obtaining the authorization, the Seller shall send the buyer the shopping completion information
if payment acquisition and payment authorization cannot be completed at the same time, the seller also needs to send payment acquisition request to the acquiring bank through the payment gateway to transfer the transaction funds from the buyer to the seller's account. The final inter-bank settlement is completed by the payment system between banks
Chinese players have become the main crowd in buying bitcoin, which has directly led to the popularity of Chinese bitcoin trading websites. Even the laurel of "the world's largest trading platform" has rotated among bitcoin trading websites in China. What are the disadvantages of bitcoin
the vulnerability of trading platform. The bitcoin network is robust, but the bitcoin trading platform is fragile. Trading platform is usually a website, which will be attacked by hackers or shut down by competent authorities
bitcoin has been given a mysterious color since its birth: it is said that because of its concealment and limitation, it is used in drug trafficking. With this kind of dark color, it was packaged as a financial proct and successfully started trading. Many people wonder if bitcoin will eventually replace money? It is not issued by any institution or country, is not controlled by any organization, and is completely decentralized. Bitcoin instead of currency can avoid currency being artificially controlled. However, while this idea sounds wonderful, it cannot be realized
the transaction of bitcoin has congenital defects, and the transaction of bitcoin is irreversible. In other words, it can never be undone: once confirmed, there will be no "error" and no "return". This will bring great inconvenience to the transaction. The limitation of bitcoin also determines that it can not meet the needs of transaction< br />
bitcoin is an electronic money system with a fixed total amount, which is established on the global decentralized network system and issued without the participation of central banks and third-party institutions. Bitcoin has the characteristics of payment system and currency at the same time. Global network nodes are maintaining the bitcoin network all day<
English: bitcoin currency symbol: abbreviation: BTC or XBT
Introction to bitcoin by wiki
different from traditional currency, bitcoin's operation mechanism does not rely on the support or credit guarantee of central bank, government and enterprise, but on the network agreement reached with seed files in the network, which is a decentralized and self-improvement monetary system, Theoretically, it ensures that no one, institution or government can control the total amount of bitcoin or create inflation. Its total amount of money graally increased at the designed rate, and the increase rate graally slowed down, and finally reached the limit of 21 million in 2140<
Introction to bitcoin in network
bitcoin is based on a set of cipher codes and generated by complex algorithms. This rule is not interfered by any indivial or organization and is decentralized; Anyone can download and run the bitcoin client to participate in the proction of bitcoin; Bitcoin uses electronic signature to realize circulation, and checks repeated consumption through P2P distributed network. The generation and consumption of each bitcoin will be recorded through the P2P distributed network and informed to the whole network. There is no possibility of forgery. Bitcoin does not rely on specific currency institutions to issue, it is generated through a large number of calculations of specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction<
Introction to bitcoin in interactive network
bitcoin is an electronic currency proced by open source P2P software. Bitcoin does not rely on specific currency institutions to issue, it is generated through a large number of calculations of specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction<
the difference between bitcoin and bitcoin
it should be noted that
in English, the words bitcoin and bitcoin represent two concepts of payment network and monetary unit
bitcoin starting with capital B represents bitcoin network system or bitcoin network protocol, which is a payment system based on decentralized network
you can simply understand bitcoin as a public accounting system built on the Internet and not manipulated by any third party. Bitcoin, which starts with lowercase B, refers to the digital currency (e-money, e-cash, cryptocurrency) built on bitcoin network. Bitcoin is the payment accounting unit built in bitcoin payment system. We call bitcoin the network system that proces bitcoin<
in Chinese, bitcoin and bitcoin are both called bitcoin without distinction in many places
its main features are as follows:
1. Decentralization
bitcoin is the first distributed virtual currency, and the whole network is composed of users without a central bank. Decentralization is the guarantee of bitcoin's security and freedom< Bitcoin can be managed on any computer connected to the Internet. No matter where you are, anyone can dig, buy, sell or collect bitcoin
3. Exclusive ownership
private key is required to control bitcoin, which can be stored in any storage medium in isolation. No one can get it except the user himself
4. Low transaction cost
bitcoin can be remitted free of charge, but in the end, a small transaction fee will be charged for each transaction to ensure faster transaction execution
5. No hidden cost
as a means of payment from a to B, bitcoin has no cumbersome limit of quota and proceres. If you know the other party's bitcoin address, you can pay<
6. Bitcoin is not completely anonymous
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learning bitcoin studybtc
it will take some time to protect privacy when using bitcoin. All bitcoin transactions are publicly and permanently stored in the network, which means that anyone can view the balance and transaction records in any bitcoin address. Unless the bitcoin holder discloses personal information ring the transaction, the bitcoin address will not be associated with the real identity of the bitcoin holder. This is why it is recommended that bitcoin holders use multiple bitcoin addresses; In fact, you should create a new address each time to receive bitcoin. This is especially important when using bitcoin in public places, such as on websites. In addition, you can also consider using tools like tor to hide your IP address from being recorded. Learning bitcoin
7. Bitcoin is still experimental
bitcoin is an experimental new currency in active development. Although its experimentality is diminishing with its increasing usage, remember that bitcoin is a new invention, exploring ideas that have never been tried before, so no one can predict the future of bitcoin.