How many virtual currency exchanges are there in the world
according to the notice and announcement issued by the people's Bank of China and other departments, virtual currency is not issued by the monetary authority, does not have legal compensation and mandatory monetary attributes, is not a real currency, does not have the same legal status as currency, cannot and should not be used as currency in the market, and citizens' investment and transaction of virtual currency are not protected by law
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It can be divided into decentralized trading platform and centralized trading platform:
decentralized trading platform:
both have their own advantages and disadvantages, and they should be selected according to their own needs< br />
Binance exchange, with rapid development, has become one of the top five exchanges in the world in just half a year. Unlike idcm.io, which was the first to support vhkd, binance directly issued its own token BNB and launched the exchange
advantages: large trading volume; Support multiple computers and mobile phones; Multi language support; More currencies: 99 cryptocurrencies such as BTC, ETH, LTC and BNB are supported, 235 paired trading markets are available, and the service charge is low; It's faster to recharge and withdraw money
disadvantage: they have no futures and OTC trading, and only support currency trading, and stopped the service to domestic users some time ago, so domestic users need to choose carefully. At the same time, because binance is an exchange trading platform, it cannot be traded directly with legal currency, so it needs to use other platforms to buy cryptocurrency
it's not very convenient to recharge it to coin an network. In addition, in February and March of this year, binance suffered serious security incidents and hackers' leek cutting attacks, and its security performance was questioned
extended information:
the process of digital currency trading through the platform is as follows:
(1) investors should first register accounts, and obtain digital currency accounts and US dollar or other foreign exchange accounts
(2) users can buy and sell digital currency with the money in their cash account, just like buying and selling stocks and futures
(3) the trading platform will sort the buying requests and selling requests according to the rules and start to match them. If they meet the requirements, the transaction will be concluded
(4) e to the difference between the buy and sell volumes submitted by users, a buy or sell request may be partially executed
the mode of digital currency trading through operating companies is as follows: take Ruibo coin as an example, Ruibo coin is operated by professional operating company opencoin, ripple protocol was originally designed based on means of payment, and the design idea is based on acquaintance network and trust chain
to use ripple network for remittance or loan, the premise is that in the network, the payee and the payer must be friends (mutual trust relationship is established), or have common friends (trust chain is formed through the transmission of friends), otherwise the trust chain between the user and other users cannot be established, and the transfer cannot be carried out
China's top ten virtual currency trading platforms are bitcoin, okcoin, Huo coin, jucoin, yuncoin, BTCC, coin security, bitera and viabtc
blockchain is a digital account book that can be jointly bookkept, and will record all transactions that have occurred and have been unanimously recognized by the system it's the same as the whole family. You're bookkeeping, and your father and mother are also bookkeeping. They can see the general ledger, but the saved information can't be tampered with any more
In 2008, Nakamoto first proposed the concept of blockchain subsequently, blockchain has become the core component of electronic currency bitcoin, which serves as the public account book for all transactions. By using peer-to-peer network and distributed timestamp server, the blockchain database can be managed independentlyextended data:
type of blockchain
1, public blockchain
any indivial or group in the world can send transactions, and transactions can be effectively confirmed by the blockchain, and anyone can participate in its consensus process. Public blockchain is the earliest and the most widely used blockchain. The virtual digital currencies of bitcoin series are all based on public blockchain. There is only one blockchain corresponding to this currency in the world
2, Alliance (instry) blockchain
instry blockchain: multiple preselected nodes are designated as bookkeepers within a group, and the generation of each block is jointly determined by all preselected nodes (preselected nodes participate in the consensus process), and other access nodes can participate in the transaction, However, regardless of the bookkeeping process (in essence, it is still managed bookkeeping, only distributed bookkeeping, how many preselected nodes, and how to determine the bookkeeper of each block to become the main risk point of the blockchain), anyone else can conct limited query through the open API of the blockchain
3, private blockchain
only uses the general ledger technology of blockchain for bookkeeping. It can be a company or an indivial, and enjoys the write permission of the blockchain. This blockchain is not very different from other distributed storage schemes