Bitcoin trading volume in Vietnam
for balance of vpay wallet, you can buy vpay coin, bitcoin, Leyte coin, Ethereum, doggy coin, etc., and conct point-to-point transaction
Vpay is a platform without borders, digital trading platform, international shopping mall platform, like Alipay and WeChat. The difference is that Vpay is developed based on block chain technology, and can achieve cross border transfer without any spot, and there is no fee.
decentralization, de centralized account, point-to-point trading, global constant issuance, and orderly in and out
it has the attributes of digital currency, such as open source code, constant volume distribution, independent wallet, large market transaction and commercial application
vpay has operation centers in Cambodia, China, Hong Kong, Vietnam, South Korea and Japan
completely avoid policy risk, cash flow risk, promotion risk, network risk and network risk<
vpay - unique - business model:
vpay wallet is a unique business model: circulation generates value - "let money never run out of money"
according to the economic principle of value generated by circulation, vpay wallet uses blockchain technology, combined with the application of integral equation, operational research, multiplication and other sciences. As long as the "balance" in vpay wallet is circulated, it can generate "points", and then increase compound interest and multiplication, so that your "money" can never be spent! Balance transfer (circulation) generates income
for example: (a transfers 1000 yuan to B, B spends 1000 yuan that should have been spent and gets 800 cash + 200 points, a gets 800 points income, and points are also equal to cash, so it's simple.)
accelerate the release of principal mechanism
for example: (if you have 100000 points, you only release 200 yuan a day, and you harvest 6000 yuan a month, and the daily trading volume of all the members in your team will accelerate the release of your principal. The 100000 points you have may be released within 5 days, and you earn 80000 yuan after 100000 yuan is released.)
static compound interest cannot be used out
80% of the investment can be recovered on the same day
Investment (10 yuan to 168000 yuan), the poor can also make a lot of money
no matter how much you put in, you can get 600% meters, pure static 6 times of revenue leverage
the dynamic income is infinite and there is no ceiling.
dpos mechanism
in recent years, e to the resource waste of pow, unstable block output, and the existence of computing power attack, although POW is recognized as the most widely used and secure consensus mechanism, there is still a great risk of being attacked for the block chain with insufficient computing power in the whole network. More and more consensus mechanisms are proposed to be used in blockchain projects for trial and experiment. Dpos is one of the mainstream consensus mechanisms, and LBTC has adopted this mechanism. Dpos ensures that the voting right is in the hands of the coin holder, so the coin holder will be able to choose whether to pass the motion by voting, so as to determine the development direction of the project. At the same time, it also means that the development direction of the project depends on the hands of the people who care about the project itself, and the power of wisdom will promote the better development of the project. At the same time, the advantages of dpos mechanism are that there is no computing power attack, strictly abide by the time block and save resources
dpos advantages of LBTC
the dpos mechanism of LBTC also has its own characteristics: the number of nodes of LBTC is 101, compared with 21 or 51 nodes, the coin holder can vote for 51 nodes at most once in the wallet of LBTC, which further reces the risk of centralization; LBTC can output blocks stably in 3 seconds, and the block size of 2m ensures that LBTC is 400 times more efficient than bitcoin, and the transaction speed can reach more than 2000 transactions per second; The most important difference between LBTC and other projects is that LBTC's dpos mechanism has the rule of irreversible block. When the number of block agents reaches 90% or more in one round, or when the number of block agents exceeds 70%, the first block in the previous round can be considered as irreversible, so as to prevent bifurcation
LBTC's defense measures
in addition to dpos consensus mechanism, LBTC's technical level has other highlights
first of all, LBTC can prevent [replay attack]. What is a replay attack? Each bitcoin account will have a corresponding number of lbtcs based on its bitcoin balance. If the address, private key, algorithm, etc. on each chain are the same, and the transaction format is the same, the transaction initiated on one blockchain can be put on another blockchain for rebroadcasting, and may also be confirmed. This is the "replay attack.". In short, when a user transfers LBTC, BTC may also be transferred at the same time. LBTC modifies the hash algorithm in transaction signature. In the hash algorithm, "LBTC" field is added to LBTC. The hash generated by LBTC and BTC will be different. LBTC and bitcoin do not recognize each other's transactions, so as to prevent replay attacks
secondly, to prevent [forged mining]. There are no concepts of voting and balance in bitcoin transaction. In order to maximize the stability of LBTC, a new output composed of OP return is added in coinbase transaction. Op-return data is composed of three fields: publickey, time and sign (time). Time represents the timeliness of transaction. Publickey verifies sign (time), which is the principle of asymmetric encryption algorithm to prevent forgery and mining. LBTC has 101 nodes. Assuming that the attacker has 30 nodes, if the remaining 71 nodes are forged, other nodes can mistakenly think that the attacker's chain is the longest and block out. This is a forgery mining attack
thirdly, prevent [double flower attack]. Double spending attack is a money spent twice, it can also be called double payment attack. For example, BTG, which has attracted wide attention before, recently suffered 51% attacks. A malicious miner obtained at least 51% of the computing power of the BTG network, temporarily controlled the BTG blockchain, quickly raised money after recharging the exchange, then reversed the block, and successfully implemented Shuanghua. Due to the irreversible block mentioned above, when the transaction of LBTC block is confirmed, it is impossible to roll back, so as to prevent the double flower attack
Fourth, multithreading. In LBTC's transaction consistency and legitimacy check, the data that can be merged and integrated are merged and executed by multi thread, which greatly improves the transaction efficiency and enhances the performance of LBTC
code logic of LBTC
in addition, in terms of code logic, LBTC is divided into protocol layer, consensus layer and application layer. When it is necessary to transfer value, the transaction is completed through the protocol layer link and consensus layer. This process can not only be used as the exchange of value, but also as the value intermediary in the tripartite connection. The application layer is mainly based on smart contract. In the future, LBTC will realize the function of gateway based on smart contract. The payment gateway implements asset issuance, asset transaction, currency exchange, chain interaction and so on
that's why LBTC can say that it wants to do global value internet protocol. Through the payment gateway, it can exchange any currency, not only between currencies, but also between legal currency and digital currency. Isn't that very convenient? One click conversion is to buy eth with vnd and transfer it to her British cousin in the distance. She dislikes it and immediately changes it to EOS. After one second, it is changed to pound sterling. There is no need for extra conversion steps. It's good to get it in one step? Such an analysis, in fact, from the technical code level analysis of LBTC is quite reliable. However, compared with those experts, Xiaobian won't deceive you. Whether LBTC can realize decentralized value Internet Protocol in the future, focusing on code will be a more intuitive way GitHub of LBTC: https://github.com/lbtcio/lbtc-core
how to use gateway
next, we talk about the specific implementation of the gateway's "conversion and circulation", which can be roughly divided into three kinds:
first, after the LBTC system has built the gateway technology, with the gateway as the bridge, user a can convert any currency into LBTC, and then send it to any user B who wants to send it, while user B can convert LBTC into any currency he needs, Does this sound like what you usually do on the exchange? I think this is one of the reasons why LBTC proposes to be a "decentralized exchange"
Second, user a can deposit the funds in the gateway trusted by user B and transfer them to user B through the gateway
thirdly, LBTC will provide the function of "any user can issue token" in the early stage of gateway construction. Therefore, in the LBTC system, if user a has a good reputation, is recognized by everyone, and issues its own a token (of course, it should include the asset chain realized by asset mortgage), a can use its own a token for user B's currency exchange. After that, user a can redeem the a token exchanged to B. A is the gateway role in the transaction process
in the process mentioned above, the functions of asset issuance, asset transaction, currency exchange and chain interaction are realized respectively
the gateway is similar to the function of a bank, which can mainly solve the problem of cross-border transfer. With the high TPS and low handling charge of LBTC, it will be very convenient to realize cross-border transfer. For example, if you need to remit money from China to the U.S., you need to remit RMB to China's LBTC gateway, and then the U.S. gateway will receive the LBTC from China's gateway, convert it into U.S. dollars, and forward it to the U.S. account. In the above gateway system, it can be concluded that both payment parties do not need to join the network, just need to trust the gateway
although the gateway solves the problems of slow speed and high handling charge of traditional transfer payment, it also faces new problems
then there is a problem
in addition to the standard institutions or project parties invited by LBTC can become gateways, ordinary users can buy and sell with each other (in fact, this kind of behavior is more inclined to loan, if it is only the business between acquaintances, it will form a small independent network), How to prove that gateway is a trustworthy organization or indivial
how to extend the gateway of LBTC to cooperate with large organizations is obviously a problem for the team. Ripple has developed more mature. At present, it has cooperated with MUFG in Japan, Westpac in Australia and Standard Chartered Bank in the UK. With ripple, star currency and other payment digital currencies in front, LBTC needs to have more characteristics if it wants to go out of its own route. This can be expected in the later intelligent contract route planning
however, ripple is also accused of being too centralized because of its distribution mode. LBTC has 101 nodes because of its dpos mechanism, and because it is a bifurcated coin, it will be distributed to bitcoin holders 1:1 when it is issued. This can be said to be the inherent advantage of LBTC - it has wide dispersion. If it can be supported and recognized by the public in the future, it can reach a consensus, Then it will form a congenital advantage of wide distribution
in addition, how can we prove that assets really exist in reality and can be used as collateral in the process of asset chain? In addition to large-scale institutions such as banks, small-scale network also has its inevitability. The proof of assets on the asset chain is a very important part. If it is not regulated and certified, it is very likely that the gateway will run away or false gateway will occur. Although the gateway is exemplified as "Taobao" platform, in theory, the platform can not manage the business content, but the platform has supervision on the quality of goods, otherwise it will cause confusion
decentralized exchanges
let's go back to the first point and talk about my ideas on decentralized exchanges. At present, mines and centralized exchanges are the protagonists in the early development of blockchain. With the rise of more and more exchanges, centralized exchanges fall into manipulation scandals and so on, which bring room for the growth of decentralized exchanges. Decentralized transaction is very likely to bring value to the field of blockchain and become the real protagonist in the era of blockchain. With gateway technology, LBTC can realize decentralized exchange. In the decentralized exchange of LBTC, the user's own currency will be kept by himself, which prevents the possibility of losing the currency in the centralized exchange. At the same time, it can also prevent the opaque system transactions, operational and technical risks. According to the previous gateway interview, LBTC will also work with reliable project parties to put on the stock exchange for the benefit of all community members. Generally speaking, LBTC's development route is relatively clear, and its goal in the field of payment is also very clear. Hold on, partners, the future is promising!
Bitcoin is a kind of encrypted digital asset protected by cryptography, without the participation of centralized institutions. It has been running steadily since 2009 and has become one of the important investment targets of global investors. Many investors are very interested in bitcoin investment. The entry process of bitcoin and some investment procts is slightly different. The address of bitcoin blockchain is decentralized, so there is no account opening step. However, purchasing Mai bitcoin with bitcoin requires the assistance of some third-party platforms
at present, there are relatively large platforms in China, such as okex, fire coin and coin security. I have been in and out of money for many times in these platforms. Let's introce my experience of buying Mai bitcoin in these exchanges.
before the introction, I need to explain one premise: the security of Mai bitcoin is divided into two aspects: one is asset security, which basically won't cause any problems when I choose the three major domestic exchanges; the other is capital security, in other words, Is to rece as much as possible with the flow of black money bank card transactions. Because it's easy to freeze their bank cards, each exchange has a different strategy
1、OKEx： https://www.okex.me/buy-crypto/cny
okex is the exchange that I use the most Mai currency. I have been in okexmai currency since 18 years. Most of the time, I have had a good experience of Mai currency. I only encountered the problem of freezing okex account (not bank card freezing) once in my impression. However, OK customer service also helped me understand the freezing process very quickly. This is my first contact with OK customer service, Good attitude and high efficiency< it can be seen from the side that okex has done a lot of work in the prevention and control of black money. Moreover, in recent years, there are few card freezing incidents in okex. Today, the black money in the exchange is increasingly rampant, okex has done quite well
in terms of user experience, the function of one click Mai is more suitable for Xiao. When using this function, you don't need to select the businesses that meet the standard in the list of businesses. It's more convenient. At present, when you do activities, you will get a 20 yuan reward when you buy Mai for the first time
in addition, okex is a first-line exchange with a large user base. Mai currency supports wechat, and ZFB buys Mai with zero handling charge. If you've just come into contact with bitcoin, it's a quick and safe choice in okexmai
However, the weakness is that okex has little support for foreign currencies. Except for RMB, only the Vietnamese Dong and Indian Rupee have depth. The Mai currency entrance of other countries' currencies is only the interface of other cooperation platforms2 https://www.huobi.com/zh-cn/
the exchange's legal currency trading plate is deep enough, and there are many powerful businesses with good experience. Support the purchase of Mai bitcoin with multi currency. In addition, the process of making Mai coins is relatively smooth and can be completed in a few minutes
however, e to the good user experience of fire coin, black and gray procts will also choose fire coin as a channel for money laundering. fire coin has been updating its risk control strategy to intercept black money accounts. However, at present, it seems that the effect may not be so good, and the freezing card incident continues. Friends who pay close attention to the digital money market may understand that a large-scale freeze occurred in early June, and many users' bank cards were frozen. Therefore, we should be a little more cautious when using Mai coins on this platform, try to choose the ranked merchants, and rece the probability of being frozen.
3 https://www.binance.com/cn
the trading plate of currency security legal currency started late, and the accumulation was not enough. Frankly speaking, the depth and experience of legal currency trading is quite different from that of okex and fire currency< Strong>, especially the t+1 strategy of currency, which is Mai currency, will make complaints about money in a day. This system has been thrown into the trap by too many people, because this is obviously a "one size fits all" strategy with insufficient technical capability.
however, even if there are many slots, coin an is slightly better than the second and third tier exchanges in terms of asset security. Users who trade in coin an can also try to buy Mai bitcoin in coin an
finally, based on the above factors, it is suggested that okex is the first choice for Mai bitcoin, fire coin is the second choice, and coin security is not recommended
“ The biggest case in the coin Circle & quot; The second instance of plustoken case is in Jiangsu & middot; Yancheng sentence. The case involved more than 2 million participants, more than 3000 levels of hierarchical relationship, and the total value of digital currency involved exceeded 40 billion yuan
Yancheng intermediate people's Court of Jiangsu Province issued a criminal ruling of second instance, rejecting the appeal and maintaining the original judgment. According to the judgment of the first instance, 14 defendants, including Chen Bo, Ding zanqing and Peng Yixuan, committed the crime of organizing and leading pyramid selling activities, and Chen Tao, who committed the crime of covering up and concealing the crime, was sentenced to two to eleven years' imprisonment and a fine
At the beginning of the 19th century, Yancheng public security organs received a report that some people used plutoken network platform to commit pyramid selling crimes, and Yancheng public security organs put the suspects on file for investigationunder the coordination of the Ministry of public security, the special case police officers went to Vanuatu, Kampuchea, Vietnam, Malaysia and other countries and regions, and successfully arrested 27 suspect suspects who were hiding abroad. Meanwhile, 1 suspect suspects were arrested in the territory. p>
in the past 20 years, the Ministry of public security deployed the national public security organs to arrest all 82 key members suspected of pyramid selling
because the business of Internet cafes in Vietnam is very poor, and under the impact of the epidemic, there is no attendance. For a long time, there is no business here, so the Internet cafes in Vietnam use rtx3080 graphics card to mine, that is, to find bitcoin the price of bitcoin has gone up by leaps and bounds, reaching tens of thousands of dollars a piece, making a huge profit. And the owners of Internet cafes also feel that after they become mining instry, they earn even more than before. Bitcoin can be said to be one of the most popular procts now, and it may have reached an era of nationwide mining in the future
However, netizens are also very funny about the situation of Internet cafes in Vietnam. Do you think the Internet cafes in Vietnam are so miserable? To this extent. However, a lot of netizens said that they understand very well. They think that if they open an Internet bar, if they use the computer of the Internet bar to mine in their spare time, if they have attendance, then they can be said to have the best of both worlds< however, if you want to dig bitcoin, it also consumes a lot of power, so many netizens are worried about whether the surrounding areas will be cut off by bitcoinin addition, we can start from the energy point of view:
the work done by the electric field force is equal to the change of the electric potential energy, the electric potential energy decreases when the electric field force is doing positive work, and the electric potential energy increases when the electric field force is doing negative work.