Chinese name of digital currency JST
bitcoin is the originator of digital currency and the most valuable virtual currency. Because blackmail virus only takes bitcoin, it has entered the public view. The soaring price of bitcoin in 2017 has attracted a large number of investors to enter the digital money market. Because the number is small, it is only 21 million, which has a strong deflationary attribute
of course, I am extremely optimistic about the future of bitcoin. Of course, many people are not optimistic about digital currency. Here, it is most pertinent to quote Krugman's view:
"at least for now, buying bitcoin is still a good investment. But that doesn't mean the experiment was successful. The original intention of establishing a monetary system is not to make those who hold money rich, but to make transactions convenient and benefit the whole economy. And none of these bitcoins came to us. "
reborn currency
a protocol currency issued by reborn, which is the base currency of reborn network. It can circulate in the whole reborn network, with a total amount of 100 billion, and graally decreases with the increase of transactions. Reborn currency is the only common currency in ripple system, which is different from other currencies in ripple system, Ripple labs (formerly known as opencoin) is the operating company of ripple coin
unlike bitcoin, reborn is a kind of transaction protocol, which is called smart contract in technical terms. It supports people to pay in any currency, and does not need a central data exchange center, so the transaction confirmation time of ripple is only 35 seconds, while that of bitcoin is 10-40 minutes
Ethereum
Ethereum is the name of currency used in Ethereum, which is used for payment calculation in Ethereum virtual machine. Ethereum is a blockchain that can be used to deploy decentralized applications. It is an open source computer platform and blockchain platform. At the end of 2013, it was founded by vitalik buterin, a Russian programmer
there is a key difference between the blockchain technologies used by Ethereum and bitcoin. Ethereum's data processing speed is faster than that of bitcoin, because once agreed, Ethereum's system will automatically apply to the terms and conditions in the contract
unlike bitcoin, the value of Ethereum depends on whether the applications on the platform of Ethereum are prosperous or not, just like the price of oil will rise with more machines using oil
bitcoin cash
bitcoin cash is a branch of bitcoin. In order to solve the problem of long transaction time of bitcoin, at 20:20 on August 1, 2017, a small number of mining machines began to use 8m block to start mining, and the transaction confirmation speed was thousands of times faster than that of bitcoin using 1m block
strictly speaking, however, there are different opinions on whether this is a new branch of bitcoin or another kind of "counterfeit currency". But now the offer of bitcoin cash is nearly 20000 yuan, so it's not too much to use it as a kind of "Shanzhai coin" to divide bitcoin traffic
IDA coin, ADA in English, is a proct of Cardano project. The total amount of Aida is 4.5 billion yuan, and 3 billion yuan will participate in the subscription. Among them, 2.5 billion ADA will be used for platform subscription, 500 million for the financial support of the development company's operating company, and 1.5 billion ADA coins will continue to be issued in the form of block awards
Cardano is a project started in 2015 to change the way cryptocurrency is designed and developed. This project is aimed at technical reformers, technical improvements to bitcoin and existing platforms. If bitcoin, Ethereum and other projects have many other shortcomings, Cardano can solve them<
lightcoin
a currency based on bitcoin protocol, but it does not require very high computing power, and it can also be mined by ordinary computer. Lightcoin's algorithm comes from the algorithm designed by Dr Colin Percival for tarsnap secure online backup service (backup for Linux and other open source operating systems)
for a long time, there has been a voice that "lightcoin will replace bitcoin", which is impossible. In the future, there will probably be a variety of cryptography currencies in the world, but any kind of counterfeit currency can not replace the mainstream position of bitcoin, no matter how excellent its algorithm is compared with bitcoin<
stellar currency
stellar currency, a digital currency project initiated by Jed McCaleb, the former founder of ripple, is used to build a decentralized gateway between digital currency and legal tender. It will be provided to users in the form of free distribution, and its supply online is 100 billion, of which 95% of the amount of star coin is used for free distribution
star is a diversified team. The board members include Keith rabois, former COO of square, Patrick collison, CEO of stripe, Jackson Palmer, co-founder of dogcoin, and naval Ravikant, co-founder of angellist, who will be the consultant of the project< New economy movement, or NEM, was founded on January 19, 2014. The founder is a mysterious person in bitcointalk.org forum called utopianfuture. The original intention of utopian future was to build a second-generation digital currency NXT. He then realized that NXT's distribution model was unreasonable, so he devoted himself to NEM with egalitarian distribution
as a kind of cryptocurrency, new coin does not need much computing resources to maintain the operation of nodes. The proof of importance (POI) engine of NEM reces the threshold of computing resources to participate in non-traditional blockchain<
dascoin
formerly known as black coin, is a kind of counterfeit currency of bitcoin, which focuses on anonymous function. There are many innovations, such as master node network, fast payment, mixed currency anonymous technology, proposals can vote, and developers have fixed budget support. The core consists of a unique incentive P2P network. Miners are rewarded for maintaining blockchain security; The main node holders are rewarded for verifying transactions, storing data and providing a variety of services
the feature of anonymity meets the needs of some investors for absolute privacy. Although bitcoin is also widely used in money laundering and other illegal transactions e to its anonymity, it is only "pseudo anonymity", and the transaction of bitcoin can still be traced back to the traders themselves.
Sec (social economy chain)
Chinese name : social e-commerce chain
sec, the next generation of e-commerce blockchain protocol based on social trust, is the world's first blockchain system to promote the socialization of e-commerce. In essence, SEC establishes the trust foundation of e-commerce indivials through distributed bookkeeping transaction relationship and trust endorsement, and takes it as the basis of consensus. SEC main chain can be used in commodity trading, second-hand commodity trading, virtual commodity trading, commodity equity, commodity crowdfunding and other fields. Under the strong wind of the social e-commerce instry, the SEC team will focus on the social e-commerce field based on its own technology and user data
issuing time : April 28, 2018
online exchange : 1
utxo is an account model in digital currency, which is different from our current bank account model< Taking transfer as an example, the current situation is:
I want to transfer 2000 yuan to Yiyi. I want to transfer 5000 yuan to her from my China Merchants Bank card. After transferring 2000 yuan to her, 2000 yuan will be dected from my China Merchants Bank account and 3000 yuan will be left
if it's utxo based on bitcoin, the situation is like this:
I have 5000 bitcoin, I transfer 2000 bitcoin to Yiyi, and 2000 bitcoin is consumed, right? be careful! This 2000 is not dected from my 5000 total. Instead, my total bitcoin will be divided into two parts (one is
2000, and the other is 3000). This is called "generating two new utxos": Yiyi takes 2000 bitcoin, and I take 3000 bitcoin myself. 3000 is my change
after the successful transfer, the 2000 bitcoin I gave Yiyi has been used and consumed, so it can no longer be called utxo. However, the 3000 bitcoin I gave my change has not been used yet, so it can also be called utxo, that is, the transaction output that has not been spent. Then, if I have 5000 bitcoins in total and I transfer them all to Yiyi, I just need to generate a new
utxo to Yiyi, and there is no need to change it
based on utxo, every transaction should confirm the situation before bitcoin and check whether bitcoin exists in my utxo. If not, the system will reject your transaction
in this way, the input and output of each transaction are related, which can be traced back to the birth of bitcoin, that is, the source of mining, through utxo
If I want to send the same utxo to two people, the system will only confirm the first one received. Once it is confirmed that utxo has been consumed, you can not transfer it to the next person, thus avoiding the problem of double payment
since the system only confirms the one received first, the problem arises. How does the system know who is first and who is second? Of course, the system knows, because the system has something called "time stamp".
digital currency itself is very suitable for the promotion of MLM funds, so it has been widely used and its reputation has been stinked
with the issuance of JPMorgan, digital currency will be graally accepted by mainstream financial institutions, which may be an opportunity for ordinary people, provided that you can avoid stepping on the pit.
the goal of just system is to establish a fair and decentralized financial system to provide stable currency lending and governance mechanism for all users in the world. This is a al token system. The first is usdj, which is a stable currency anchored to the US dollar at a ratio of 1:1. It is generated by mortgaging TRX on just's CDP lending platform. The second is the JST, which is part of the usdj monetary system
the system governance of just mainly depends on the holders of JST coins. On the one hand, the holders of JST coin can enjoy the income brought by the stable cost of usdj, on the other hand, the holders of JST coin also need to undertake the governance function of just system. The governance of just platform is mainly completed by the JST coin holders voting out effective proposals. Each JST coin holder can vote in the form of JST coin to select the contract he supports from all the smart contracts that modify the system parameters. After voting, the contract with the highest number of votes is the effective proposal. The effective proposal contract can obtain the system rights and complete the modification of the internal management variables of just system according to the established logic
JST coin founding team and its background:
JST coin has a vigorous elite team. 50% of the staff in the technical team are from Alibaba, Tencent, IBM and other world-class Internet companies, with rich experience in proct design and development. The financial analysis team of just system comes from several global investment banks, and the operation team has experienced in blockchain operation. At the same time, just system is also a strong supporter of wave field Tron ecology
just ask at the subway window
the whole country is so big, how can we know here
how much is a subway ride.