Game chain in blocks
of course, different games have different ways to play. In detail, you may need to focus on a certain game to give you an explanation. Or do you want to develop a blockchain game by yourself? I recommend Chongqing anonymous technology. Blockchain games are all in progress
EOS knight is a popular game all the time. It is a tower climbing game integrating hero upgrading, fighting monsters, keeping pets and making equipment
recently, the daily life of TECAN is relatively high, which is a game ecosystem integrating finance, services and entertainment. Players can "mine", subscribe or sell land, invest and trade, create services to obtain income, and even explore the universe to carry out commercial colonization activities on more planets
if you want to know about blockchain games, you can see the evaluation of blockchain games in the DAPP column of password finance.
blockchain can create potential for the Internet of things to enable smart city. Road signs, traffic lights, cars and other moving and stationary objects will be embedded with sensors that will collect data and send it to a system that will reroute buses, trams, emergency vehicles and other municipal vehicles to find the fastest route and avoid traffic jams
ultimately rece traffic congestion, speed up commuting and rece carbon emissions. Blockchain secure sensor data can also help drivers find open parking spaces or charging terminals, pay traffic tickets, and report accidents or maintenance problems.
foreign exchange refers to the foreign currency held by a country and the means of payment expressed in foreign currency for international settlement
the concept of foreign exchange can be divided into static and dynamic
1. Static concept
the static concept of foreign exchange refers to the payment means in foreign currency that can be used for international settlement. This means of payment includes credit instruments and securities expressed in foreign currency, such as bank deposits, commercial bills, bank drafts, bank cheques, long-term and short-term government securities, etc
2. Dynamic concept:
the dynamic concept of foreign exchange is a kind of specialized business activity that changes one country's currency exchange into another country's currency in order to pay off international creditor's rights and debts. It is the abbreviation of international exchange
here, it should be pointed out that the currencies of some countries are not freely convertible in the international market, so they can only be counted as foreign currency, not foreign exchange< What is the exchange rate
exchange rate, also known as exchange rate, refers to the price of one country's currency expressed in another country's currency, or the comparison between the two countries' currencies. Usually expressed by the exchange ratio between two currencies. For example: USD / CNY = 1 / 7.2456, that is, the exchange rate between us dollar and RMB is 1: 7.2456, which can also be said that 1 US dollar needs to be purchased with RMB 7.2456< Third, the characteristics of the exchange rate
EUR 0.9705
JPY 119.95
GBP 1.5237
CHF 1.5003
2. The minimum change unit is one point, that is, the change unit of the last digit
EUR 0.0001
JPY 0.01
GBP 0.0001
CHF 0.0001
3. The rise and fall are described by "dots"
according to market practice, the price of foreign exchange rate is usually composed of five significant figures, which are counted from the right to the left, and the first one is called & quot; X dots;, It is the smallest unit of exchange rate change; The second is called & quot; X ten points;, And so on
for example: 1 euro = 1.1011 US dollars; 1 dollar = 120.55 yen
the euro against the dollar changed from 1.1010 to 1.1015, saying that the euro against the dollar rose by 5 points
the dollar against the yen changed from 120.50 to 120.00, saying that the dollar against the yen fell by 50 points< (4) the pricing method of exchange rate
1. Direct pricing method
direct pricing method is a method of expressing the exchange rate of a certain unit of foreign currency in domestic currency. Generally, how much foreign currency of one unit or 100 units can be converted into domestic currency. At present, most countries in the world use the direct pricing method, and China also uses the direct pricing method, such as the US dollar to RMB ratio is 1:6.4906.
2. Indirect pricing method
indirect pricing method is the foreign currency to express the exchange rate of a certain unit of domestic currency. Generally speaking, how much foreign currency can be converted from one unit or 100 units of local currency. At present, only a few countries in the world use indirect pricing method, such as British pound, euro, Australian dollar, New Zealand dollar and Irish pound. For example, for the UK, the exchange rate of pound sterling to RMB is 1: 9.4471, which is the indirect pricing method< What are the main procts and symbols
according to international practice, the name or code of currency is usually represented by three English letters
US dollar: USD
British Pound: GBP
Euro: EUR
Japanese Yen: JPY
Canadian Dollar: CAD
Swiss Franc: CHF
Australian Dollar: aud
New Zealand Dollar: NZD
6. Who are the market participants
participants in the foreign exchange market mainly include central banks, commercial banks, non bank financial institutions, broker companies, self dealers and large multinational enterprises. They trade frequently with huge amount of money, and each transaction is worth several million dollars or even more than ten million dollars. Generally speaking, there are three motivations for their participation:
1) through trade and investment, international enterprises convert foreign profits into domestic currency
2) for hedging, the finance director and fund manager will also use the foreign exchange market to rece the risk of price fluctuation in futures trading< 3) speculative profit< What are the major foreign exchange markets in the world< At present, there are more than 30 major foreign exchange markets in the world, which are distributed in different countries and regions on all continents of the world. Among them, the most important are London, Frankfurt, Zurich and Paris in Europe, New York and Los Angeles in America, Sydney in Australia, Tokyo, Singapore and Hong Kong in Asia< 8. Trading hours of major foreign exchange markets. Each foreign exchange market in the world alternates with each other in business hours, forming a circular operation pattern< 9. What are the ways to buy foreign exchange
1. Bank. At present, many banks can handle personal settlement and sales of foreign exchange business, foreign exchange settlement of trading companies, personal purchase of foreign exchange for overseas travel expenses and other non speculation foreign exchange situations also choose to go to the bank to apply for foreign exchange
2. Platform dealers. At present, China has allowed indivials or institutions to exchange foreign exchange online. Indivials or institutions that speculate in foreign exchange can trade foreign exchange through platform dealers.
Regional chain game is a kind of activity project that adds regional chain in the game
1. On April 23, 2018, Tencent will release its first blockchain game, code named "Z". It aims to combine blockchain with games to improve the playability and authenticity of entertainment
2. The significance of regional chain game is as follows:
① through Tencent blockchain technology and operation resources, connecting the asset side of core enterprises and the capital side of financial institutions, it can help to improve the efficiency of capital allocation, enhance liquidity, support the supply chain of small and micro enterprises, rece social financing costs, and support the real economy
② at the same time, taking the accounts receivable from core enterprises as the underlying assets, we can realize the circulation of creditor's rights certificates through Tencent blockchain, and ensure that the relevant information can not be tampered with, can not be repeatedly financed, and can be traced
extended data
the regional chain is based on the relevant details of the game
in the game, if you want to tamper with the whole blockchain, you need to modify more than 51% of the data, so that the system can believe that the other 49% of the ledger information is "a minority that can't match". These books are basically controlled by indivial indivials all over the world, so it is almost impossible to tamper with the regional chain in the game. In the game, the characteristics of the regional chain are as follows:
1. Decentralization: because the account book is recorded and held by everyone together, the blockchain technology does not need a central server or a third-party organization, and everyone's computers, mobile phones and other equipment are part of the account book
2. Transparency: the account books of all participants are open and transparent, and information is shared
3. Security: since everyone has the same global ledger, the destruction of indivial ledger will not affect the whole. It's meaningless to tamper with the information of a single account book, because it doesn't match other people's account books
A good idea of blockchain for players is to have a virtual currency that can be used in all games. Theoretically, blockchain can achieve this at the technical level, but considering the differences between different game manufacturers and different games, the possibility of practical operation is still very small
the meaning of blockchain is as follows:
from an academic point of view, blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies
blockchain is essentially a decentralized database
If many people still don't understand it, let's take an example. Suppose the environment: if you have an account book at home, you can keep it. In the past, it was Mom and dad who gave you the salary and let you record it in the account book. In the middle, if you are greedy and want to buy something delicious, the record on the account book may be less than ten yuan. This is just an example. Xiaobian believes that when we were young, we all wanted to take some money from Mom and dad's pocketsthe way to solve the problem with blockchain:
if you use the way of family mobilization to keep accounts, the above problems will not exist, because you are keeping accounts, your father is also keeping accounts, and your mother is also keeping accounts. They can see the general ledger, you can't change it, and your parents can't change it. In this way, you can't help the father who wants to buy cigarettes and the greedy one
In other words, blockchainthis distributed digital ledger
records all the transactions that have occurred
and have been unanimously recognized by the system
every block is an ledger
which can not only record transaction information
but also have more functions
multi-functional "blockchain"
which can not only record every transaction, It can also be programmed to record almost everything of value to humans: birth and death certificates, marriage certificates, deeds of ownership, degrees, financial accounts, medical history, insurance claims, votes, food sources, and anything else that can be coded
each block is like a hard disk, which saves all the above information and encrypts it with cryptography technology. The stored information cannot be tampered with
note: there is nothing in the world that cannot be decrypted? It's just a matter of how long it takes to crack the secret. If there is a spear, there is a shield. The contradictory world is an eternal law! We need to learn to use the Internet to search for many problems in order to get twice the result with half the effort. The meaning of blockchain is here for you