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Virtual currency HPY

Publish: 2021-05-20 03:47:11
1. Virtual money has the mathematical characteristics of money (persistence, portability, interchangeability, scarcity, separability and identifiability) rather than relying on physical characteristics (such as gold and silver) or the trust of the central authority (such as fiat money). In short, virtual money is supported by mathematics. With these characteristics, a form of money to have value requires trust and use. For virtual currency, this can be reflected in its growing base of users, businesses and start-ups. Like all currencies, the value of virtual currency comes directly from people who are willing to accept it as a way of payment, which is also the only source

at present, the well-known virtual currencies are bitcoin, Laite coin, Fuyuan coin and doggy coin.
2. This is the best digital currency ranking to query, there are many third-party software support. Of course, if you want to choose a safe and reliable, decentralized exchange is a better choice.
3. Radar money is good. His application value is high, and the income is simple. As long as he holds the currency, there will be income, and the income of appreciation is immeasurable
4. Investment should be cautious, please study carefully before deciding
virtual currency is a currency that can buy goods and services in a specific community in a virtual space. It has the monetary function of medium of exchange and unit of account
virtual currency can be roughly divided into three categories
the first category
has nothing to do with real currency, and can only be used in a closed virtual environment, usually online games, such as world of Warcraft
the second type of one-way exchange can only be used in a virtual environment, and sometimes physical goods and services can be purchased, such as frequent flyer award program, microsoft points, Nintendo points, Facebook credits and Amazon coin
the third type of two-way exchange, which has a buying price and a selling price, is the same as "real" currency, including those issued by issuers, such as second life Linden coin, two-way exchangeable game currency, etc., as well as decentralized cryptocurrencies, such as bitcoin, Leyte coin, Ethereum, etc; Virtual currency & quot; But cryptocurrency is only one of the subcategories of virtual currency.
5. Of course, it's not reliable. Although the number of virtual currencies is limited (just like gold, because of its limited total number and fixed mining cost, its value is recognized by the world and can be used as the target of value preservation and investment), how many different virtual currencies are there in the world? There are unlimited kinds! There are bitcoin today, digital coin tomorrow, and digital coin the day after tomorrow~~
6. Virtual currency refers to non real currency.
7. Should the payment system be highly centralized or completely distributed and decentralized? The hyperledger team believes that there should be a balance between the two - power is neither concentrated in one institution nor completely distributed, but reasonably and appropriately divided into several parts
decentralization, a political concept first proposed by the British philosopher John Locke, was used by hyperledger in the distribution of power in the payment system. As shown in the figure below, the first is the "centralized" network of general national and third-party payment systems, the third is the bitcoin type point-to-point "decentralized" network, and the second is the payment protocol system established by hyperledger
hyperledger is an open source platform that allows anyone to issue personal currency. Hyperledger open source payment protocol was first founded by Daniel Feichtinger from Hong Kong. He is the core developer of hyperledger and the inventor of distributed consensus mechanism. Dan o'prey, another member of hyperledger, joined in April as co-founder. Prior to that, o'prey founded a visible cloud computing tool, macdeyun. The company base is in Beijing to help developers use Amazon AWS more easily. It obtained $1.5 million from Sequoia Capital in the early stage. O'prey left his position as CEO three months ago. O'prey joined hyperledger in charge of marketing and business development. Currently, hyperledger's server and client code has been uploaded to GitHub
the proposal of hyperledger payment agreement is largely influenced by ripple. At the end of the Q & a page of the hyperledger website, the team said that hyperledger can be seen as an alternative or supplementary system to ripple
ripple is another promising digital currency after bitcoin. The biggest difference between ripple and bitcoin is that their logic is just the opposite. Bitcoin is first a digital currency, and then a means of payment based on it; Ripple's idea is to make payment easier. First of all, payment. In order to make payment more convenient and currency circulation, ripple created its own virtual currency XRP
in ripple payment network, you can transfer any currency, including US dollar, euro, RMB, Japanese yen or bitcoin, which is easy and fast. The transaction confirmation is completed within a few seconds, and the transaction cost is almost zero. There is no so-called cross-bank and cross-border payment fee
compared with bitcoin, the account book needs six confirmations, 10 minutes each time, and the total confirmation time is nearly one hour. Ripple introces a "consensus" mechanism, which can verify and confirm the transaction in a very short time through the voting of special nodes. Ripple's trade confirmation process can be completed in seconds. Hyperledger is similar to ripple "consensus" mechanism, and the consensus is reached through Byzantine fault-tolerant algorithm mechanism
in addition, the ripple client does not need to download the blockchain (recording historical transaction data), it abandons the verified general ledger chain on the ordinary node, and only keeps the latest verified general ledger and a link to the historical general ledger, so the workload of synchronizing and downloading the general ledger is very small
the increasing volume of blockchain has become another big problem of bitcoin. Every time bitcoin wallet is installed, a lot of time is consumed to download data blocks. In the past year, with the increase in the number of transactions, especially the emergence of a large number of small transactions on gambling websites, the volume of block ring chain has doubled to 15GB
at the same time, under the general ledger and consensus mechanism, yingyunsheng ripple also has an absolutely accurate online IOU marking function, which hides a subversive idea that users can issue their own currency. Users can set the name of the IOU and the exchange ratio with us dollars or bitcoin. This is actually "personal currency". Its core is to subvert the currency with government credit as the core, and give users the choice of every trust
long verification time, growing block chain (recording historical transaction data) and increasing unreliable transactions are the problems bitcoin is facing now. These are also the problems hyperledger tries to solve. Hyperledger inherits the advantages of ripple. By introcing a consensus mechanism similar to ripple, it can shorten the verification time, remove the block ring chain, and use the voting mechanism (two-thirds agree) to automatically detect and remove the damaged nodes through transaction requirements
the concept of ripple appeared as early as 2004, and Ryan Fugger launched the first implementation version of ripple. Its goal is to build a decentralized virtual currency system that allows anyone to create their own currency. Money in ripple network is expressed as "debt", and all transactions show the change of account balance
the original intention of ripple project is to establish a distributed P2P clearing network: everyone is their own bank, which can issue and accept loans, and at the same time act as a lending channel (for example, a wants to borrow money from B, but they don't know each other, but they all know C, so C can act as a channel for a and B. C first borrows money from B, and then lends money to a, indirectly realizing that a borrows money from b)
ripple's design idea is based on acquaintance relationship and trust chain. If a person wants to use ripple network for remittance or loan, the premise is that his friends already exist in the network. Otherwise, it is impossible to establish a trust chain between the user and other users, so there are not many ripple users
the problem of limited users in small circles has been solved after the establishment of the new company opencoin. Opencoin has launched a new version of ripple, which introces two measures to solve the problem of isolated small circle: one is to launch ripple currency, XRP, as the base currency of ripple network, which can circulate in the whole network just like bitcoin, without being limited to the circle of acquaintances; The other is the introction of gateway system, which is similar to currency exchange institutions, allowing people to inject legal money into and withdraw from the ripple network, and can act as a bridge between borrowers and borrowers
What are the differences between hyperledger and ripple
according to the statement given by the hyperledger team:
? In concept, ripple focuses on forming a trust chain according to the reputation of the entity, and finding the simplest way to realize the transaction, which can be cross currency. The purpose of hyperledger is to make it easy for private entities to issue money and to have precise control over the amount of money issued< br />? Ripple and hyperledger share the same "consensus" mechanism and attach the same protocol, but the rules of membership and privacy are different< br />? Hyperledger does not issue a currency of its own in the system< At present, ripple's commercial business can be divided into two types:
one is that ripple directly provides remittance technology and underlying protocol to banking financial institutions, which is equivalent to replacing the original high-cost swift technology. Ripple only serves as the technology provider. Users can open the client of China Merchants Bank and choose to remit by swift or ripple in the remittance column, The significance of ripple is to use technological innovation to help banks rece costs
the other is direct consumer oriented business. Users can log in to ripple's website or download an app of ripple wallet, where they can freely make cross-border remittance, charge accounts or exchange between real currency and virtual currency. The network management can be a bank, a third-party payment enterprise, or even an indivial
how to participate in hyperledger? Its consensus pool is divided into four parts: testpool, mainpool, custompool and premierpool< br />? Testpool is open to everyone for free, in which you can publish your personal ledger (currency) or test third-party applications, or even try to attack the payment system and do what you want to do< br />? Mainpool is the basic pool. Each node in the pool requires a unique domain name and SSL certificate. Now it is added to the mailing list and will be notified as soon as hyperledger is released< br />? Custompool allows users to define pools, which can be limited to a country, a university, etc< br />? Premier pool is a commercial pool. There are more strict restrictions and requirements for operating a "consensus" node. Every request for ledger must be audited, and membership subscription fees must be paid. Specific rules need to be communicated with hyperledger team.
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