What is ccash digital currency 6
They are:
the concept of bitcoin was first proposed by Nakamoto in 2009. According to Nakamoto's ideas, the open source software was designed and released, and the P2P network was built on it. Bitcoin is a kind of P2P digital currency. Point to point transmission means a decentralized payment system
bitcoin cash
bitcoin cash is a new version of bitcoin with different configurations launched by a small number of bitcoin developers
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virtual currency refers to non real currency. Well known virtual currency, such as network company's network currency, Tencent company's Q currency, Q point, Shanda company's voucher, Sina's Micro currency (used for micro games, Sina reading, etc.), chivalrous Yuanbao (used for chivalrous road game), silver pattern (used for bixue Qingtian game)
the popular digital currencies in 2013 are bitcoin, Leyte coin, infinite coin, quark coin, zeta coin, BBQ coin, pennies (Internet), invisible gold bar, red coin and prime currency. At present, hundreds of digital currencies are issued all over the world. Popular in the circle & quot; The legend of "bitcoin, Wright silver, infinite copper, pennies aluminum"
1. Bithumb
bithumb is the largest digital currency exchange in South Korea and the top ten in the world in terms of trading volume. Its daily trading volume exceeds 13000 bitcoins, accounting for about 10% of global bitcoin trading volume. It promises to provide the lowest handling charge in the world. Bithumb accounts for 75.7% of South Korea's bitcoin market, 10% of the global bitcoin market, and 50% of South Korea's Ethereum market
Bitmex is established in the Republic of Seychelles as a leading leverage trading platform. It can operate cryptocurrency derivatives trading as high as 100 times leverage, and also provide high leverage for other digital currency procts. Bitmex offers more than a dozen futures and swap procts. Bitcoin is one of the most active trading varieties, which can be divided into three types: xbtz17 (bitcoin / USD futures), xbjz17 (bitcoin / yen futures) and xbtusd (bitcoin / USD perpetual swap)
to register a bitmex account, just fill in the email, password and country. The name can be left blank. Bitmex does not accept the recharge and withdrawal of legal currency, so it does not have to follow the bank's KYC / AML requirements to obtain the user's personal information
Okex
3, okex
okex mainly provides global users with spot and derivative trading services of digital assets such as bitcoin, lightcoin and ethereal currency, which is subordinate to okex Technology Company Limited. Since 2014, we have been committed to providing bitcoin, lightcoin, ethercoin and other digital asset currency and derivatives trading services to global users, adopting advanced technologies such as GSLB, distributed server cluster, distributed storage, high-speed memory trading engine with multi machine mutual backup, cold wallet, hot money package with private key offline, etc
As one of the most concerned companies in the international blockchain instry, Qian'an is jointly founded by Zhao CHANGPENG, former blockchain CTO, a well-known blockchain company, and He Yi, former vice president of science and technology, to provide users with more secure and convenient digital currency exchange services and aggregate global high-quality digital currencies, It is committed to building a world-class blockchain asset trading platform. Only 50 days after its launch, the company's users have covered more than 180 countries around the world. This is the first time that the company has disclosed its financing information
5. Hotcoin is one of the three major exchanges in China. Headquartered in Beijing, it also has many exchanges, including domestic stations, international stations, quantitative trading, etc. hotcoin is a domestic station. Since its establishment in 2013, the accumulated trading volume of hotcoin has exceeded $100 billion, once becoming the largest digital asset trading platform in the world, It occupies 50% of the global share of digital asset transactions, and has been invested by Zhenge fund and Sequoia Capital
fire coin group has invested in more than 10 upstream and downstream enterprises, and has completed the establishment of compliance service teams in Singapore, South Korea, Hong Kong, Thailand, Australia, Canada, Brazil, Britain and other countries and regions, providing secure and reliable digital asset trading and asset management services for millions of users in more than 130 countries
6, bibox
bibox is the world's first artificial intelligence digital asset trading platform, which innovatively realizes transaction security, platform stability and operation convenience; Financial derivatives services are well-known in the instry. The platform not only provides spot trading, but also provides financing, currency financing and contract trading business. Investors can carry out long short two-way operation. They can obtain the income from the rise in the price of digital assets by buying long and obtain the income from the fall in the price of digital assets by selling short, which is convenient for traders to invest and hedge
Hitbtc
7, hitbtc
hitbtc was established in 2013 and obtained 6 million euro venture capital. Headquartered in Europe, it is a bitcoin trading platform in the UK, supporting the current mainstream encrypted digital currency portfolio trading, including BCC / BTC, ETH / BTC, XmR / BTC, LTC / BTC, EOS / BTC, EOS / eth, etc. at present, there are 762 trading pairs. Hitbtc is operated by hit Solutions Limited in Hong Kong and has a dedicated support and communications office in Santiago, Chile
Digifinex
digifinex is a block chain Digital Asset Exchange registered in Seychelles, which mainly provides currency trading services of bitcoin, Ethereum, lightcoin and other digital assets for global users. According to non trumpet data, there are 103 platform trading pairs at present. Digifinex is founded by blockchain and digital asset enthusiasts, with core teams from Xunlei, Tencent and Internet. It is operated by digifnex limited, which is registered in Seychelles, and its current operation center is located in Singapore
ZB network is a global digital currency exchange. Currently, there are 168 platform trading pairs, which support OTC and spot trading. At present, it has obtained the exchange license of Thailand and Du, and has set up operation centers in Switzerland, Canada, the United States, Bangkok, Du and other places. ZB focuses on providing global customers with safe, convenient and compliant blockchain asset trading services
10, coin win international station
coin win is a global digital asset trading platform set up by Chinese state-owned enterprises in Hong Kong. It adopts bank level security technologies such as cold storage, SSL and multiple encryption to ensure the security and stability of virtual currency transactions. It mainly provides transaction services of digital assets such as ether currency and HSR for global users, and is subordinate to citicash Hong Kong Investment Limited. Currently, there are 51 platform trading pairs, which support OTC and spot trading
in terms of cloth storage and mining, I recommend Heshu hardware wallet and jiajiabao intelligent home miner. The core advantage of the proct is safety
take sum hardware wallet as an example. The advantages of sum hardware wallet are as follows:
1. The private key seed is encrypted layer by layer, physically isolated and never touched the Internet.
firstly, when creating the wallet, the seed password is generated and stored in the local encryption chip, and the 10 bit payment password is required
then, the transaction is made in the wallet. At this time, the user needs to enter the payment password to obtain the private key to digitally sign the transaction, and the transaction is completed. In addition, the private key seed is permanently stored in the chip, which is physically isolated and never touches the Internet. There is no need to worry about my password being stolen by hackers
Second, the bank system verifies the financial level motherboard and encryption chipuses the bank system to verify the financial level motherboard, and the private key seed is stored in the chip. If the proct is stolen or lost, and destroyed by malicious violence, the chip will trigger a self destruct circuit, and immediately permanently and irrecoverably delete all the information in the area
Third, it supports the withdrawal of global bitcoin ATM, which is convenient and fastthe reason why digital assets attract the attention of many fields in the world is that it is creating a global fast circulation, and the larger the circulation field is, the wider the scope is, and the higher its use value is. The core of digital assets is the medium it acts on among currencies. The Heshu wallet has built-in many mainstream exchanges in the world. It can trade digital assets anytime and anywhere. With one machine in hand, it can walk around the world without worry, and no longer have to worry about exchanging foreign currency
Different from conventional digital wallets, multi signature wallets need the authorization of multiple key holders to transfer digital currency, so the security of multi signature wallets is higher. Ordinary Wallet: a wants to transfer a bitcoin to X. A only needs his signature (using the private key) to complete the transaction. Sum Wallet: if a wants to transfer a bitcoin to x, a multi signature verification is set (at least two signatures of Abc3 indivials are required to transfer the money), then a needs B or C to complete the signature (using the private key) when a wants to transfer the money to X. I hope I can help you. Thank youthe ranking of digital currency can be measured according to multiple dimensions, such as market value, technical ability, landing in Cheng, 24-hour rise and fall, 24-hour turnover list, 24-hour turnover rate, etc. For the sake of data accuracy, we list the ranking of virtual currencies in the market value list<
let's first look at the data to see how the Ministry of instry and information technology measures the value of digital currency:
saidI Research Institute of the Ministry of instry and information technology officially announced the first global public chain technology evaluation index and ranking. Eth ranked first with a total index of 129.4, while BTC only ranked 13th<
moreover, the ranking method this time is that CCID Research Institute of MIIT does not mention cryptocurrency, but only public chain. The first list of evaluation objects are: bitcoin, Ethereum, reborn, Leyte, bitcoin cash, Cardano, starcoin, Neo, eota, Monroe, dasey, Xinjing, Ethereum classic, quantum chain, Nanor, application chain Big zero coin, verge, stratis, cloud storage coin, stim coin, bitstock, byte coin, wave coin, deced, super cash hcash, Comodo coin, ark. The top ten in the list are eth, stem, LSK, Neo, KMD, XLM, ADA, iota, XmR and strat<
If ranked by market value, the results will be much different: the following data are based on Niuniu app, and the market value represents the first place at the time of writing: bitcoin (BTC)
current price: 26428 yuan, market value: 460.018 billion yuan, total amount of CDB: 21 million, circulation volume: 17.406 million, and circulation market value: 460.207 billion yuan, Issue time: 2009.01.03
second place: XRP
current price: 236 yuan, market value: 95.192 billion yuan, total issue volume: 100 billion yuan, circulation volume: 40.327 billion yuan, circulation market value: 95.181 billion yuan, issue time: 2011.04.18
third place: eth
current price: 734 yuan, market value: 76.136 billion yuan, total issue volume: 104 million yuan, Circulation volume: 104 million, circulation market value: 76.136 billion, issue time: July 24, 2014
fourth place: Star currency (XLM)
current price: 98 yuan, market value: 18.834 billion, total issue: 104.523 billion, circulation volume: 19.155 billion. Circulation market value: 188.43 yuan. Issue time: 2014.08.01
fifth place: bitcoin (BCH)
market value: RMB 137.700 billion, currency price: RMB 810.175, total currency: RMB 21 million, bitcoin cash released on August 1, 2017, jointly created by some bitcoin developers, belongs to the new version of bitcoin. From 2015 to 2017, the price of bitcoin rose rapidly. Different factions competed fiercely for more computer network resources. In order to get out of the competitive environment, one camp created another version and rebuilt the blockchain currency. Bitcoin cash modifies the code of bitcoin, increases the block size to 8m, adopts two-layer network, reces the workload of bitcoin network, and maximizes the efficiency of bitcoin network without damaging the original structure and security of bitcoin blockchain
with the integration of the two exchanges of okex and Huo yuan.com, yuanniuniu can share the trading depth and enjoy the treatment of zero handling charge fund transfer. It only needs to download an app to exchange transactions at both ends. At the same time, yuanniuniu is also a good market software tool, which can help speculators master the latest currency price trends and large positions.
the central bank now plans to issue digital currency, which has the property of currency and can be used for payment. However, in addition to being used as currency, there are other application scenarios, such as the token on the European crowdfunding platform as an asset class.
Bitcoin is a virtual encrypted digital currency in the form of P2P. Point to point transmission means a decentralized payment system. Unlike all currencies, bitcoin does not rely on a specific monetary institution to issue. It is generated by a large number of calculations based on a specific algorithm
Bitcoin and its derivatives are called cryptocurrency. The system uses encryption technology to generate new currency and transfer verification. The encryption sequence has the following purposes: to make the transaction almost impossible to be forged; So that money bank or money wallet can be easily transferred as data; Verify bitcoin transfer from one user to anotherbefore bitcoin is used, new coins must be generated or mined by the system. The encoding and decoding process of these blocks requires a lot of computing power, and those users who successfully generate new blocks will be rewarded with some bitcoin or part of the transaction cost
in this way, the same process of transferring bitcoin from one user to another creates a demand for more computing power contributed to the bitcoin network on the same basis, thus generating new coins for use
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the role of bitcoin
bitcoin is just like gold coin in reality: they have value and can be used for trading just like gold coin. You can invest through bitcoin - buy cryptocurrencies and profit from their price fluctuations. Every day there are new places to include bitcoin as a payment method< There is no official price for bitcoin. The price of bitcoin is determined by the price people are willing to pay. The price of bitcoin is usually expressed as the cost of a bitcoin. However, exchanges are generally allowed to buy for any amount, that is, less than one bitcoin. Libertex's price index is a high-quality resource for instant viewing of bitcoin prices
source: Internet bitcoin
both digital gold coin and password currency belong to digiccy. It can not be completely equivalent to the virtual currency in the virtual world, because it is often used for real goods and services transactions, not limited to online games and other virtual space. At present, the central bank does not recognize or issue digital currency, and digital currency does not have to have a benchmark currency. The popular digital currencies in 2015 include bitcoin, Leyte coin, Ruitai coin, thousand gold card, etc. At present, there are thousands of digital currencies issued all over the world
China's central bank is also planning to launch its own digital currency, but the design concept of this digital currency and bitcoin are different from nature. The key point of the digital currency to be manufactured by the central bank is the control right, which can also be said to be the digitization of paper currency< Bitcoin, of course, is the hottest one. In addition to bitcoin, there are also:
1. Litecoin is similar to bitcoin. It is also an encrypted digital currency, and its price has risen sharply recently. It is a P2P open source digital currency, which can be regarded as a branch of bitcoin. However, although it is based on bitcoin protocol, it does not require very high computing power, Lightcoin's algorithm is derived from the algorithm designed by Dr Colin Percival for tarsnap secure online backup service (backup for Linux and other open source operating systems).
2. Namecoin is also based on bitcoin, which is another open source branch. Namecoin is a distributed DNS protocol, It is able to change the website name (such as ifeng.com) that can be understood by human beings into the address that can be understood by machines. As its own DNS, this currency can operate outside the normal Internet, so it can be free from the control of ICANN.
the monetary value and domain name of namecoin are stored in the block chain records of users, limiting the total number to 21 million.
3 Peercoin
peercoin is a peer-to-peer variant of bitcoin, which can improve mining efficiency and security, and improve safeguard measures to avoid group mining. Now, group mining has been regarded as a potential defect of bitcoin. According to the statistics of emerging currencies by coinmarketcap.com, peercoin is currently ranked fourth in the market value of digital currency.
4 Primecoin
primecoin is a cryptocurrency similar to bitcoin, but it uses a completely independent mining algorithm. Bitcoin uses hashcash algorithm, while prime coin uses long Cunningham chains to create the value of money, which is a prime number sequence named after mathematician AJC Cunningham, But prime is different. Every time a primecoin is mined, the mining difficulty will increase slightly, and the process is much more stable.
5. Feathercoin
feathercoin is designed and released in April 2013, and can adjust the mining difficulty more frequently than litecoin, Novacoin is another P2P digital cryptocurrency. The difference between novacoin and most other currencies is that it integrates protection mechanism in the currency core to identify illegal mining activities.
the total number of novacoin is limited to 2 billion, which is considerable. If necessary, the total number can be adjusted upward.
7 Infinitcoin
released in June 2013. It is a by-proct of litecoin. According to the mining situation and the total number of currencies, infinitcoin can frequently adjust the mining difficulty ratio.
8. Megacoin was only released in the fourth quarter of 2013 and imitated bitcoin in the initial stage. The total number of megacoin is limited to 42 million, which can be mined out like other virtual currencies, This is exactly what other digital currencies lack.
9. Quarkcoin was released in 2013 and is still in its infancy. The security part of quarkcoin deploys 9 independent loops of encryption and adopts 6 different algorithms
as we all know, the biggest bottleneck restricting the popularity of blockchain has been its slow transaction speed. Bitcoin can only process seven transactions per second, while Ethereum can only process up to 20 transactions per second. Therefore, after bitcoin has existed for more than 10 years, most people have only heard of blockchain, but they seldom use this technology
abey is developed to solve the problem of low efficiency of blockchain and difficult to popularize in a large area. It is an independent public chain. Abey adopts a unique chain governance and chain architecture. Abey, for example, is looking at how to use only 50 active blocks in the chain. When a new block is created, the oldest block is removed from the end of the chain. But its data will still be preserved and archived. If this architecture is successful, the whole chain will be shorter, lighter and more responsive. Abey takes an average of 2 minutes to create a new block. Many studies have proved that this is close to the optimal time for block generation - abey is much more efficient than traditional blockchain Technology (such as bitcoin)< Second, it's very interesting. As you mentioned just now, the operation efficiency of blockchain and Ethereum is relatively low. So what level can abey reach<
Huang Lianjin: theoretically speaking, abey's transaction processing efficiency can continue to expand with the needs of users. The change in efficiency will also depend on the type of actual use case. For example, the first use case built on the core of abey blockchain is the apay systems payment services (a payment) platform. According to the project side, its current efficiency has exceeded the speed and throughput of visa / MasterCard credit card system
in terms of function, the apay platform supports the instantaneous conversion of bitcoin, Ethereum, bitcoin, cash and Leyte into a stable currency called Act (or acash) (linked to the value of the US dollar). Once the user obtains the act, it can be used to trade with other apay users
in addition, users will soon be able to enter the act into the apay encrypted debit card, and then they can consume at any merchant (online and offline) receiving visa / MasterCard, and withdraw legal tender from any ATM in the world. Apay's goal is to become a bridge between cryptocurrency and the real world, bringing cryptocurrency into the mainstream business world< In this way, apay will promote the large-scale application of blockchain technology in e-commerce. Besides, what other achievements does abey team take pride in
Huang Lianjin: abey constructs a loose coupling intelligent contract execution architecture. This means that people can use any programming language or compiler to develop smart contracts on the abey platform. In contrast, developers will not need to be limited to the development restrictions in Ethereum ecology, which will reshape the way smart contracts are built and run in the blockchain
the first smart contract in abey ecosystem is written in C language (C language ranks top three among the most common programming languages in the world). At present, there are more than 5.4 million known C and C + + language developers around the world – compared with less than 10000 solid language developers in the Ethereum ecosystem. In 5-6 years, the expansion rate of Ethereum ecosystem's developers is still expected to be relatively slow.
filing: the hospital where you file is the hospital where you will have prenatal examination and delivery in the future. After pregnancy in Beijing, we must file in the hospital, and then we can give birth in this hospital
establishment of health records: refers to the establishment of Beijing Maternal and child health records, also known as maternal and child health manual. It is handled in the primary community health service center. Beijing requires that all pregnant women undergoing prenatal examination and delivery in Beijing must establish this file. If many hospitals want to file, they also need a mother and child health manual
collection time of health manual for mother and child. Generally, you need to bring with you: ID card, marriage certificate, household registration book, Beijing residence card or residence registration card (pregnant women outside Beijing), check list proving pregnancy, etc. Different community health service centers have different time and requirements for establishing the register. Get details can be back to the residential district name query
note: when entering the information in the maternal and child health manual, once the date of the last menstruation of the pregnant woman is entered, it cannot be changed. In addition, the mother child manual needs to be handled by the pregnant women themselves
hospital filing time
under normal circumstances, pregnant women in Beijing go to the hospital to establish pregnancy health records when they are about 12 weeks pregnant. Some of the most popular hospitals in Beijing are short of filing places, which are usually set up at 6-8 weeks of pregnancy. Of course, there are also hospitals where the number of filing places is not tight, and the filing should be done within 20 weeks of pregnancy at the latest
Beijing filing requirements and process
filing in Beijing is divided into two big steps: the first step is to go to the local community health service center to get the Beijing Maternal and child health manual, that is, to create a health record. The second step is to choose your own target hospital for filing
appointment mechanism
most public hospitals in Beijing implement appointment mechanism, that is, after confirming pregnancy or handling the maternal and child health manual, register and file in the obstetrics department of the hospital, that is, to reserve beds
the second step: select public hospitals for filing
in Beijing, only after filing, can we have prenatal examination and delivery in this hospital. There are two conditions for Beijing hospital to establish archives: one is to have Beijing Maternal and child health manual; The second is to meet the filing requirements of the hospital, such as pregnancy cycle, visible fetal heart rate and fetal bud B ultrasound, etc. generally, different hospitals have different filing conditions and filing time
the most important step to go to a hospital for filing is to make an appointment for filing (some hospitals call it registration). After the appointment filing, it is equivalent to occupying a bed. The follow-up will be carried out step by step according to the requirements and process of the hospital, and finally the formal filing can be completed