Major digital currency positions increase

1.

The main concept stocks of digital currency include Hailian Jinhui, Julong, Huijin, radio and television express, digital certification, Kunlun wanwei, gaoweida, Huali chuangtong and high beam software

from the perspective of financial institutions' layout of digital currency concept stocks, according to the No.1 Institute of finance, among the relevant stocks that have disclosed the annual report of 2019, as of the end of the fourth quarter of last year, five stocks were heavily held by institutions such as insurance capital, securities companies and funds, with a total market value of 24.3 billion yuan

in terms of research on financial institutions, No.1 Institute of Finance found that six digital currency concept stocks, namely, radio and television express, digital certification, Kunlun wanwei, gaoweida, Huali chuangtong and Gaoguang software, have been intensively researched by institutions this year, with a total of 163 times of research

an equity investor of an insurance company told the No.1 Institute of finance that at present, the insurance capital still pays attention to the large cap stocks with "low wave dividend" (stocks with high dividend and low performance fluctuation), and still holds a wait-and-see attitude towards popular concept stocks such as digital currency, but does not rule out the subsequent purchase

extended data

digital currency can be considered as a virtual currency based on node network and digital encryption algorithm. The core characteristics of digital currency are mainly reflected in three aspects: because it comes from some open algorithms, digital currency has no issuing subject, so no one or institution can control its issuing

because the number of algorithm solutions is determined, the total amount of digital currency is fixed, which fundamentally eliminates the possibility of inflation caused by excessive virtual currency; Because the transaction process needs the approval of each node in the network, the transaction process of digital currency is safe enough

The emergence of bitcoin poses a great challenge to the existing monetary system. Although it belongs to the generalized virtual currency, it is essentially different from the virtual currency issued by network enterprises, so it is called digital currency

this paper compares digital currency with electronic currency and virtual currency from the aspects of issuing subject, scope of application, issuing quantity, storage form, circulation mode, credit guarantee, transaction cost and transaction security

2. There is no "digital currency" at all. In other words, wechat payment is actually a digital currency
for example, bitcoin is called "digital currency" or "cryptocurrency". It's hard to say that it's money, because it doesn't have the characteristics of money
currency speculation or currency circle refers to the so-called currency. Future money, fire money... All belong to the same category. They are digital symbols with no real value and no security. Don't touch them if you don't understand them
in my opinion, these so-called digital coins are the modern version of Dutch tulips, which will return to zero sooner or later and become air coins.

3.

The contract transaction of digital currency is not safe. There are still many loopholes in the digital currency trading platform, for example, the most common are the following six kinds:

1. Denial of service attack

denial of service attack is the most important attack against the digital currency trading platform at present. Through denial of service attack, the attacker makes the trading platform unable to access normally, Because users can not accurately distinguish the degree of attack, it often causes panic asset transfer, which brings some loss

2. Phishing incident

even the best technical measures at present can not make the digital currency trading platform avoid phishing attacks. Some hackers and criminals can confuse digital currency investors by means of fake domain names or fake pages, while ordinary investors can't identify the authenticity, so it's easy to cause asset losses

Many digital currency trading platforms use a single private key to protect the hot wallet. If hackers can access a single private key, they can crack the hot wallet related to the private key. For example, in the attack on yapizon of Seoul stock exchange in 2017, the attackers stole hot wallets from the trading platform twice in a year, resulting in a total loss of nearly 50% of the assets of the trading platform and eventually leading to the bankruptcy of the trading platform

Fourth, e to the lack of perfect risk isolation measures, or ineffective supervision on the rights of employees, some employees who have the operation rights of the platform use internal trust to seek unjust wealth for themselves. For example, in 2016, the event of employees stealing bitcoin on shapeshift caused a total loss of US $230000 to the trading platform by stealing and reselling sensitive information to others

Fifth, the software vulnerability of digital currency trading platform includes single sign on vulnerability, OAuth protocol vulnerability and so on. At present, all countries have laws requiring banks or other financial institutions to implement information security measures to protect customers' deposits. However, e to the fact that the blockchain field is still in its infancy, there is a lack of such specifications for encrypting digital assets. Therefore, it is not accidental that many trading platforms have a large number of loopholes in the absence of security constraints

6. Transaction malleability the technical supporters of blockchain often think that blockchain transactions are highly secure because they are recorded on records that are said to be unchangeable, but each transaction needs to have a corresponding signature, and the records can be forged temporarily before the final confirmation of the transaction

extended data:

rules of contract transaction

1. Transaction time

contract transaction is 7 * 24 hours transaction, which will be interrupted only ring the settlement or delivery period of 16:00 (UTC + 8) every Friday. In the last 10 minutes before delivery, the contract can only be closed, not opened

Transaction types are divided into two types, opening and closing. Opening and closing positions are divided into two directions: buying and selling:

buying open long (bullish) refers to buying a certain number of contracts when users are bullish and bullish on the index. Carry out "buy open more" operation, match success will increase long position

selling pingo (multi order closing) refers to the selling contract that the user makes up for when he is no longer bullish on the future index, offsets with the current buying contract and exits the market. Carry on "sell flat much" operation, match after success, will rece long position

short selling (bearish) refers to the new sale of a certain number of certain contracts when the user is short or bearish on the index. Carry out the operation of "sell short" and increase the short position after successful matching

buy close (short single close) refers to the buy contract that the user will not be bearish on the future index market and make up for, offset with the current sell contract and exit the market. Carry out "buy short" operation, after matching successfully, short position will be reced

3. Order method

limit order: the user needs to specify the price and quantity of the order. Limit order can be used for opening and closing positions

order at opposite price: if you choose to order at opposite price, you can only enter the order quantity, not the order price. The system will read the latest competitor price at the moment of receiving the entrustment (if the user buys, the competitor price is the selling price of 1); If it is a sell, then the counter price is buy 1 price). Issue a price limit order for this counter price

4. Position

the user owns the position after opening and trading, and the positions in the same direction of the same contract will be merged. In a contract account, there can only be 6 positions at most, that is, multiple positions of current week contract, short positions of current week contract, multiple positions of next week contract, short positions of next week contract, multiple positions of quarterly contract and short positions of quarterly contract

5. Order restriction

the platform will restrict the number of single user's positions in a certain period of contract and the number of single open / close positions, so as to prevent users from manipulating the market

when the number of positions or entrustments of users is too large, the platform has the right to require users to take risk control measures, including but not limited to cancellation of orders, closing positions, etc. The platform has the right to adopt measures including but not limited to limiting the total number of positions, limiting the total number of consignments, limiting the opening of positions, withdrawing orders, forcibly closing positions, etc. for risk control

4. Virtual currency ranking

the 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.

5. Yes, click the word "asset" at the top of the asset page, and you can choose to switch between "position proportion" and "exchange assets". You can see the position percentage of each currency to the total assets or the asset value of each exchange.

6. Both domestic Shenyu mine and bitcoin mine in China are OK. Of course, there are many well-known mines abroad that can be mined. You said that the software is now a long time ago, when the configuration of a higher computer or graphics card mining, more trouble. Now if you are still mining those equipment, I suggest you do something else meaningful. Now we need to buy professional ASIC mining machine. Even so, it is difficult for retail investors to recover their capital. Of course, you can also buy cloud computing power mining. Now mining is fighting for electricity price and energy consumption. If these two points have advantages, mining is OK. If these two points can't be achieved, it's no use. Of course, it doesn't rule out that the electricity charge you add is free. This can also be mined

you need to download a bitcoin wallet and back it up. Just keep bitcoin in your wallet. However, if you don't know the technology, I suggest you store bitcoin in your online wallet. Now the technology of online wallet is very mature. If you still don't understand, go to bitcoin home to see some suggestions from netizens.

7. Do you have hd8970? The notebook has a hd8970m, which can't do even the gtx780m
I don't know where you see hd8970 surpassing gtx690. Ha ha
at present, the latest R9 290x is the same as GTX Titan. Surpassing the gtx690 is just a joke. A: Yes

8. At any time,
whether it is a delivery contract or a perpetual contract

9. The following is the calculation formula of the theoretical output of the cylinder:
F: the theoretical output force of the cylinder (KGF)
F ′: the output force (KGF) - (f ′ = f) when the efficiency is 85% × 85%)
D: cylinder diameter (mm)
P: working pressure (kgf / cm2)