Ethereum game trading
money, as a measure of transaction value, does not necessarily have value in itself, it can only be used as an intermediate unit of measurement. It's just like China has only RMB as legal tender, that is to say, government guarantee has value. For example, in those war-torn areas, ten jin currency may not buy an egg, which is the reason
back to digital currency, digital currency, until now, no country has recognized it as the currency in circulation of its own country. It seems that last year or the year before last, our country also banned some. In this case, digital currency can only be sold at a price higher than your purchase price, so that you can make money. But digital currency itself does not have any value. Unlike stocks, it is your ownership of listed companies. So if you can't find someone to buy digital currency, it's worthless
the Ponzi scheme in history, the Dutch tulip, when it was the most expensive, a tulip was worth buying a house. When no one bought it, all the tulips rotted. In addition, they couldn't get a potato. Therefore, Buffett said that digital money is a bubble, which is a hoax.
in addition, there is a saying in the stock market that when all the ladies in the vegetable market begin to discuss the stock market, it is the time when the stock market reaches its peak. In my opinion, this also applies to digital currency. When many people are discussing how to make money and how to make a lot of money, the risk has accumulated to a great extent. Most of the time, when the stock begins to fall, many people are still in the previous inertial thinking, thinking that it will rebound soon, and then it will get lower and lower, and they are more reluctant to sell it. This is why many people hold a high position on it
I'm not sure whether it is the highest point of digital currency, but I think that digital currency, which can be issued by anyone, has no purchase value and can only be sold to others. I think it's a fraud.
ether clown is a blockchain pet cultivation game launched by IAC advertising platform, which combines with pet entertainment to make money easily, and at the same time combines with blockchain technology to ensure the interests of players. Experience the fun of raising, working, earning and reselling, beautiful pictures, rich experience and happy income! Make a real game, let players get a more comfortable experience, with the game this well-known proct form, the human into the era of full intelligence
ether clown is a digital collection, a non-standard digital currency (ether currency, etc.), which is based on blockchain and can never be changed. It can be verified by a third-party platform to clearly query the relevant data information! Cryptoclow is a digital and collectable blockchain game based on Ethereum blockchain. Using ether money to adopt clowns can not only resell them, but also use them to breed a new generation of clowns with strange shapes. It can also cultivate them to work and earn money, making the digital collection of clowns more sustainable and playable# Ethereum clown#
There is an essential difference between Ethereum and bitcoin. What is the difference? Bitcoin defines a set of currency system, while Ethereum focuses on building a main chain (which can be understood as a road) to allow a large number of blockchain applications to run on this road
from this point of view, Ethereum's application scenarios are more extensive, which is why we say that Ethereum marks a simple monetary system in the era of blockchain
1.0, and a transformation to other instries and application scenarios in the era of blockchain 2.0
however, there is no perfect thing in the world. Although Ethereum has expanded the application scope of blockchain in all walks of life and improved the speed of transaction processing, it also has some disputes and doubts
first, the solution to the lack of scalability of Ethereum: slicing technology and lightning network
the bottom design of Ethereum, the biggest problem is that Ethereum has only one chain and no side chain, which means that all programs have to run on this chain equally, consuming resources and causing system congestion. Just like last year's very popular Ethereum game "encryption cat", when this game was very popular, it once caused Ethereum network paralysis
to improve the processing capacity, Ethereum proposes two ways: shard and lightning network. Let's introce these two technologies respectively
(1) fragmentation technology
vitalik buterin, founder of Ethereum, believes that the reason why mainstream blockchain networks such as bitcoin process transactions very slowly is that every miner has to process every transaction in the whole network, which is actually very inefficient. The idea of fragmentation technology is: a transaction does not need to be processed by all nodes in the whole network, as long as some nodes (miners) in the network are allowed to process it. Therefore, Ethereum network is divided into many pieces. At the same time, each piece can handle different transactions. In this way, the network performance will be greatly improved
however, the slicing technology is also controversial. As we all know, the important idea of blockchain technology is decentralization. Only when the whole network witnesses (processes) the same transaction can it have the highest authority. The Ethereum slicing technology is similar to the group witness, not all nodes witness together. In this way, it will lose the absolute "decentralization" attribute, and can only achieve the purpose of high performance by sacrificing certain characteristics of decentralization
(2) lightning network
lightning network uses the way of transaction under the chain. What does that mean? It means: when the participants of lightning network transfer money to each other, they do not need to confirm the transaction through the main chain of Ethereum, but create a payment channel between the participants and complete it under the chain
however, lightning network is not separated from the main chain. Before establishing a payment channel, you need to use the assets on the main chain as collateral to generate a balance proof, which indicates that you can transfer the corresponding balance. In the case that both parties of the transaction hold the balance certificate, both parties can make unlimited number of transfers under the chain through the payment channel
only when the off chain transaction is completed and the assets need to be transferred back to the chain, the balance change information of the main chain account will be registered on the Ethereum main chain, and no matter how many transactions occur ring this period, there will be no record on the main chain
another real benefit of lightning network is that it can save the cost of miners for you. At present, when we trade on the main chain of Ethereum, we need to consume gas and pay for miners. Once we move the transaction to the lower chain, we can save this part of the cost
Of course, lightning network is not perfect. When using the lightning network, the assets on the main chain should be used as collateral; And this part of assets as collateral can not be used before the user completes the transaction under the chain. This also determines that lightning trading is only suitable for small transactionsthe above is the problem of insufficient scalability of Ethereum, as well as the two main solutions: fragmentation technology and lightning network
Second, there are loopholes in Ethereum's smart contract and the infamous Dao event
Ethereum's smart contract is very powerful, but there are loopholes in any code. The biggest controversy of Ethereum's smart contract lies in the so-called loopholes, that is, security issues. According to relevant research, 34200 (about 3%) of the nearly 1 million smart contracts based on Ethereum contain security vulnerabilities, which will allow hackers to steal eth, freeze assets or delete contracts, such as the infamous Dao incident
(1) what does Dao meanbefore introcing the Dao event, let's first introce what Dao is. Dao is the abbreviation of decentralized
autonomous organization, which can be understood as decentralized autonomous organization. From the perspective of Ethereum, Dao is a kind of contract or a combination of contracts on the blockchain, which is used to replace the government's review and complex intermediate proceres, so as to achieve an efficient and decentralized trust system. Therefore, Dao is not a specific organization, that is to say, there can be many Dao, all kinds of Dao
(2) the infamous Dao event
however, when we talk about Dao now, we basically refer to the Dao event, that is, the infamous hacker attack event we just mentioned. As we know, the English word "the" refers to "the Dao event". The Dao event
refers to "the Dao event", because we just said that Dao is not a specific organization, there can be many Dao, all kinds of Dao
in 2016, slock.it, a German company focusing on "smart locks", launched the Dao project on Ethereum in order to realize decentralized physical exchange (such as apartments and ships). Since April 30, 2016, the financing window has been open for 28 days
unexpectedly, this Dao project is very popular. It raised more than US $100 million in just half a month. By the end of the whole financing period, it raised a total of US $150 million. Therefore, it has become the largest crowdfunding project in history. However, it didn't last long. In June, hackers took advantage of the loopholes in the smart contract to successfully transfer more than 3.6 million Ethernet coins and put them into a Dao sub organization, which has the same structure as the Dao. At that time, the price of Ethernet currency fell directly from more than $20 to less than $13
this event shows that there are loopholes in smart contracts, and once the loopholes are exploited by hackers, the consequences will be very serious. This is why many people criticize Ethereum and say that its smart contract is not smart
to solve this problem, many foreign companies begin to provide code audit services in order to solve the vulnerability problem of smart contract. From a technical point of view, some teams are currently testing smart contracts. Most of these teams are led by professors from Harvard, Stanford and Yale, and some of them have obtained investment from leading institutions
in addition to the problems of insufficient expansibility and loopholes in smart contracts, the controversy over Ethereum lies in the POS consensus mechanism it pursues, that is, the proof of equity mechanism. Under the proof of equity mechanism, if anyone holds more money and holds it for a longer time, he will get more "rights" (interests) and have the opportunity to get bookkeeping power, Bookkeeping can also be rewarded. In this way, it is easy to create the oligarchic advantage of "the stronger the stronger"
Another problem is the chaos of ICO. ICO is a common way to raise funds for blockchain projects, which we can understand as pre-sale. The outbreak of ICO projects on Ethereum has caused illegal activities such as fund allocation and money fraud under the banner of ICO, which has caused security risks to social and financial stability1. The proction and breeding of clown pets
the proction mechanism of clown pets can be divided into two types, one is the official proction (zero generation clown pets), the other is the breeding between two clown pets
the official clown pets can be divided into two categories: ordinary zero generation clown pets and special clown pets. Ordinary zero generation clown pets proce one every 15 minutes, and the total number is only 50000. The appearance of ordinary clown pet is composed of 8 parts. The attributes of each part can be divided into ordinary and rare. The number of rare attributes is less than that of ordinary attributes
Special clown pet is a variant of clown pet. Special clown pets are divided into three categories: creation clown pets, special clown pets and strange clown pets, all belong to generation 0 clown pets. The creation clown pet is the creator of the whole clown pet world. There is one male and one female. It is no longer bred and belongs to the platform. It can't be traded within one month after the release of cryptotown. It will be auctioned after one month. The lowest price is 5 times of the average selling price of all clown pets proced by the platform at the time of auction. Clown pet is a kind of customized clown pet in operation activities, which is limited in quantity and cannot be bred. Strange clown pets are some funny looking clown pets. After they are launched on the platform, they can be purchased directly or mutated ring breeding
two clown pets of different genders can reproce in the breeding center of the market. In each breeding pair, one clown pet bearing the role of father can receive the breeding fee paid by the other (maternal owner). After breeding, there is a certain recovery period, which is related to the clown pet's gene. The clown pet in the role of mother will have a period of pregnancy, and she will not be able to breed again until she gives birth to the baby. There is no limit to the number of breeding times of each etheric clown pet, but the recovery period and pregnancy period will increase with the number of breeding times
male clown pets can click breeding on the details page of clown pets in the "my" interface to carry out hanging list breeding. If there are genes favored by female clown pets, or the price is particularly suitable, female clown pets will soon breed with them to proce the next generation
female clown pets can go directly to the "market" and choose their favorite male clown pets "to be bred". After paying the breeding fee, they can breed the next generation together
2. The appearance of clown pet
the appearance of clown pet is composed of eight parts: eyes, mouth, nose, hair and hat, body shape, pattern shape, pattern color, skin color and clothing color. The attributes of each part can be divided into common and rare. The number of rare attributes is less than that of common attributes, which makes the clown pet with rare attributes more precious
each clown pet is born with 54 gene codes, which are divided into three groups, 18 in each group. The first two groups represent the genetic genes of the clown pet's grandparents and parents, and the third group represents the clown pet's own genes. The 18 genes are divided into nine groups, representing nine attributes, including background color, eyes, mouth and nose, hair and hat, body shape, pattern shape, pattern color, skin color and clothing color. Gene codes and random functions are written on the chain and cannot be changed. The appearance of the clown pet is closely related to the parents and the genetic genes carried by them. The offspring have a higher probability of inheriting the shape of some parts of their parents, which makes the parents' good genes inherited and may also mutate to become a completely different clown pet from their parents. In order to get a baby clown pet with rare attributes, please try to choose those clown pets with more specific attributes for breeding
the appearance of each clown pet is determined by the tamperable genes stored in the smart contract, and each gene is unique, so each clown pet is unique
3. Clown pet trading
selling clown pets
users can choose clown pets to be auctioned in the trading market, and can sell their own multiple clown pets. During the auction, users need to set the highest starting price, the lowest acceptance price and the auction time. The Dutch auction is adopted in the auction. During the auction time, the highest price set by the seller is graally transferred to the lowest price. If the owner is not willing to sell at a low price, a longer auction time can be set or the clown pet can be sold off the shelves
buy clown pets
the buyer selects the clown pets on sale in the trading market and pays ether to buy their favorite clown pets. When the buyer purchases, the transaction will be concluded at the auction price at the current time point. If you have a favorite clown pet, but feel that the price is not suitable for the time being, and want to pay more attention, you can like it and collect it. Later, you can learn about the dynamics of the clown pet through "my attention"< There are four attribute values of clown PET: growth value, strength value, agility value and wisdom value. Generation 0 clown pets get the value of each attribute randomly, and the non generation 0 clown pets are mainly inherited
attribute values can be changed by eating food. Please refer to point 5 of this page for the relationship between attributes and corresponding food
working
after the growth value of clown pet reaches the requirement (100 points), you can go to the factory to work and earn money (ETH). Different kinds of factories need different clown pets. When the clown pet attribute is higher than 800, go to the factory with the corresponding attribute to get an additional bonus. On the basis of 800, for every 10 points higher in the attribute, the revenue can be increased by another 1%. If the strength of clown pet is 801, he can get basic income * (1 + 1%) by working in a power factory. When his strength reaches 811, he can get basic income * (1 + 2%), and the maximum bonus is 20%. When the clown pet attribute is lower than 300, the income from working in the corresponding factory will decrease. For every 10 points lower, the income will decrease by 1%, and the maximum will be reced to 20%
each owner can allow up to three clown pets to work at the same time
the basic income of working
the working system is a part of the platform. The platform will allocate 20% of the previous day's income every day as the basis for calculating the benchmark income. If the clown pet has a profit bonus, the bonus part of the income can reach up to 24% of the previous day's income. Working income is settled by 12 minutes as a working hour, with 5 working hours per hour. Benchmark income = daily income before the platform * 15% / (number of jobs * 24 * 5) * [working time (minutes) / 12]
when the time reaches 0 o'clock or the clown pet's physical strength is 0, the work income of the clown pet will be paid according to the actual working hours at 0 o'clock every day. When every 12 minutes is a work, less than 12 minutes will not be counted
jobs
in the early stage, we opened a total of three factories with a total of 150 jobs. Hosts can sign up for work as soon as possible. If you don't sign up successfully, you can go to the factory interface when you have time. Other clown pets can sign up for work if they leave their places after work
when the total number of owners of the zero generation clown pet on the platform reaches 900, we will open 3 new factories to 300 working seats. The number of work places will continue to increase as the total number of alt clowns and hosts increases
physical strength
physical strength is 120 points in total. Working will consume physical strength, consuming 1 point every 12 minutes, up to 24 hours. During the period of not working, physical strength can be recovered, a little every 8 minutes
5. Clown pet food and feeding
owners can buy spinach, beef, carrots, walnuts and other food through the mall to feed clown pets
feeding spinach is helpful to growth value, beef corresponds to clown pet's strength value, carrot corresponds to agility, walnut corresponds to wisdom. Each food can add 10 corresponding attributes. After property growth, it will not be reced
the price of food is related to the selling price of original clown pets on the platform the previous day. Spinach accounts for 20% of the average trading price of generation 0 clown pets on the platform the previous day, and the other three foods account for 15%. Owners can hoard some food when the price of food is low
clown pets can only eat one food per day. We suggest that spinach should be fed in the early stage to meet the working conditions as soon as possible, and then according to the natural properties of clown pets in the later stage. When working, choose the type of factory with the highest attributes to work
6. It's more lovely to bask in the sun
in order to increase the social attribute of the game, we added the "square" section. Many lovely owners and clown pets gather in the square to share their stories. If you adopt a very ugly and cute clown pet, you can share it with us to let us know our style.
First enter the official website, find the corresponding currency in the recharge withdrawal, fill in the corresponding information, and then submit the withdrawal
Trading rules of bitcoin: 1. Trading time: 7 * 24 hours, all year round
2. Account opening: the account opening process is simple. You only need to register with niubitnet and complete the real name authentication to recharge RMB, and at least recharge RMB 100 to start the transaction
Transaction fee: 0.2% for each transaction T + 0 trading mechanism: the stock is t + 1 trading, that is to say, the stock can be bought on the same day and sold on the next trading day. Bitcoin and other digital assets are t + 0 transactions, which can be bought and sold on the same day. And there is no limit on the number of transactions 5. No limit on the rise and fall: the stock has a limit on the rise and fall, while bitcoin and other digital asset transactions have no limit on the rise and fall, for example, bitcoin rose more than 20% in a single day on May 28
6. Trading unit: the minimum number of BTCs that can be bought / sold is 0.001 (about 17 yuan), and there is no buy / sell limit of at least one hand (100 shares)
There is no time limit for cash withdrawal: cash withdrawal at any time, high liquidity The basic principle of transaction: price first, time first. When the commission price is the same, the Commission order with earlier registration time is better than that with later registration timeTransaction
the behavior of blockchain transaction follows different rule sets
< UL >e to the distributed and unlicensed nature of public blockchain, anyone can sign the transaction and broadcast it to the network
according to different blockchains, traders will be charged a certain transaction fee, which depends on the needs of users rather than the value of assets in the transaction
blockchain transactions do not require any central authority verification. It only needs to use the digital signature algorithm (DSA) corresponding to its blockchain to sign it with the private key
once a transaction is signed, broadcast to the network and mined into a successful block in the network, the transaction cannot be recovered
Ethereum transaction structure
Ethereum transaction data structure: transaction 0.1 eth
{& 39; nonce': 39; 0x00', // Decimal: 0
& 39; gasLimit': 39; 0x5208', // Decimal system: 21000
& 39; gasPrice': 39; 0x3b9aca00', // Decimal system: 10000000000
& 39; to': 39; 39; ,// Sending address
& 39; value': 39; 0x16345785d8a0000',// 100000000000000000 ,10^17
' data': 39; 0x', // Decimal representation of null data; chainId': 1 / / blockchain network ID
}
these data have nothing to do with the transaction content, but have something to do with the execution mode of the transaction. This is because when you send a transaction in Ethereum, you must define some other parameters to tell miners how to handle your transaction. Transaction data structure has two attribute designs & quot; gas": & quot; gasPrice",& quot; gasLimit"
" gasPrice": The unit is Gwei, which is 1 / 1000 eth, indicating the transaction cost
& quot; gasLimit": The maximum gas charge allowed for the transaction
these two values are usually filled in automatically by the wallet provider
in addition, you need to specify which Ethereum network to execute the transaction (chainid): 1 represents the Ethereum main network
ring development, tests are usually carried out locally and on the test network, and transactions are carried out through the test eth issued by the test network to avoid economic losses. After the test, enter the main network transaction
in addition, if you need to submit some other data, you can use & quot; data" And & quot; nonce" Attach as part of a transaction
a nonce (number used only once) is the value used by Ethereum to track transactions, which helps to avoid double spending and replay attacks in the network
Ethereum transaction signature
Ethereum transaction involves ECDSA algorithm. Taking JavaScript code as an example, the popular ethers.js is used to call ECDSA algorithm for transaction signature
you can use the online application composer to deliver signed transactions to Ethereum. This is known as "offline signature.". Offline signatures are particularly useful for applications such as status channels, which are smart contracts that track the balance between two accounts and transfer funds after a signed transaction is submitted. Offline signature is also a common practice in dexes
you can also use online wallet to create signature verification and broadcast through Ethereum account
with Portis, you can sign a transaction to interact with the gas station network (GSN)
< / UL >
the Xueshuo innovation blockchain Technology Workstation of Lianqiao ecation online is the only approved "blockchain Technology Specialty" pilot workstation of "smart learning workshop 2020 Xueshuo innovation workstation" launched by the school planning, construction and development center of the Ministry of ecation of China. Based on providing diversified growth paths for students, the professional station promotes the reform of the training mode of the combination of professional degree research, proction, learning and research, and constructs the applied and compound talent training system