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A. How to build a blockchain website

Websites are no longer mysterious and no longer a high-tech job. Ordinary users can also easily build relatively professional websites. Let me briefly introduce to you some procedures and precautions for building a personal website.
1. Domain Name
If you want people to visit your website, a domain name is essential. The domain name should be as short as possible and as easy to remember as possible, such as the .top domain name. Of course, there are not many domain names that are easy to remember and have characteristics. You need to consider this yourself, as long as you feel that there is a certain pattern or it is easy for users to remember. That’s it.
2. Space
To build a website, you must have a space, which is a place to store the website. For individual users, it is recommended to purchase a virtual host. When purchasing a web host, look at its service, speed, response time, etc. Generally, you can choose a service provider with a certain reputation.
Note: Domain name and space are currently good choices for domestic service providers such as Alibaba Cloud, Western Digital, and China Data.
3. Website program
Of course, the website program should be ready-made, because there is no need for individuals to compile a website program from scratch, and they do not have the ability. Nowadays, there are ready-made website management systems on the Internet. There are many such systems. You can choose based on your own comprehensive trial.
When choosing a website program, its versatility and secondary development must also be taken into consideration. For those that are not very versatile and are not conducive to the second phase of development, although they are powerful, they are not recommended because it will be very troublesome when the website needs to be designed with personalized functions after it reaches a certain scale. In addition, try to choose asp (asp.net) for programs. PHP, JSP, etc. are not particularly popular in China. Try to choose asp.net between asp and asp.net. After all, it is based on the .net architecture and is the development trend.
4. Website Design
After selecting the website program, you need to design the website according to your own needs. Generally speaking, it is best if there are professional artists and programmers to make modifications. However, individual webmasters may not necessarily have this condition and can choose intelligent website building from service providers.

B. What is 360 Block Cat

360 Block Cat is a casual and fun pet cat blockchain software launched by 360. Just download it and go to the 360 ​​area You can get your own exclusive cat by buying a cat, so what is the specific method to get it? Let us take a look below.
What is 360 Block Cat?
360 Block Cat app is an electronic pet raising game based on blockchain technology. 360 Block Cat app is officially released by 360. This 360 Block Cat app Similar to Ethereum Cats and Leitz Dogs, the first generation block cats of the 360 ​​Block Cat app are limited to 50,000. Users of the 360 ​​Block Cat app can produce offspring by breeding with each other. Of course, their value will also be affected by the number of reproductions. .
360 AreaWhat is the use of Block Cat?
360 Block Cat app is a virtual pet empowered by the blockchain. Each block cat in the 360 ​​Block Cat app is cute and cute, with its own merits. They are uniquely yours in the vast digital universe.
The first batch of 360 Block Cat app is limited to 50,000 pieces. According to the breeding order, "Block Cats" are divided into 0 generations, 1 generations, 2 generations, etc., among which the first generation is the most precious.
During the 360 ​​Block Cat event, users who successfully submit an appointment can adopt a 1st generation cat; if they invite and get the help of 10 friends, they can adopt a very precious 0th generation cat~
360 Block Cat This app only records the user’s reservation and forwarding information for adoption of block cats. Only after the Blockcat platform and products are officially launched can users actually receive their adopted Blockcat.
360 Block Cat Activity Description:
Block Cat is a virtual pet empowered by the blockchain. Each block cat is exquisite, cute, and unique in its own way. They are uniquely yours in the vast digital universe.
According to the number of reproductions, block cats are divided into generation 0, generation 1 and generation 2...the smaller the generation, the more precious it is~
During the event, users who successfully submit an appointment can adopt a 1st generation cat; Invite and get the help of 10 friends, you can adopt a very precious 0th generation cat~
This event only records the information of users' reservations and forwarding activities to adopt block cats. Only after the Blockcat platform and products are officially launched can users actually receive their adopted Blockcat.
360 Block Cat event time: February 14, 2018 12:00:00 to February 21, 2018 23:59:59
How to get 360 Block Cat? How to get 360 Mobile Assistant Block Cat?
1. Make an appointment to adopt a 1st generation block cat
1. During the event, users click the "Book Now" button at the bottom of the page, fill in the user information, and successfully submit the block cat appointment and adoption registration, and then they can adopt it. 1 1st generation block cat.
2. Each user (the same WeChat ID, mobile phone number, device, and IP address is considered the same user) can adopt up to one first-generation block cat through reservation.
3. Each user can only make one reservation, and repeated reservations are invalid.
2. Forward this activity to adopt a 0-generation block cat
1. During the activity period, the user successfully shares this activity with WeChat friends or WeChat Moments, and invites WeChat friends to click the "Help them realize their wishes" button on the page , with the help of 10 WeChat friends, you can adopt a zero-generation block cat.
2. A WeChat friend must have successfully adopted a 1st generation block cat, otherwise the WeChat friend will not be able to help the user adopt a 0th generation block cat after clicking the "Helping him or her wish come true" button.
3. A WeChat friend (the same WeChat ID, mobile phone number, device, and IP address is considered the same WeChat friend) can only help the same user once. Each user can adopt up to 1 animal by forwarding this activity. Generation 0 Blockcat.
360 Blockcat activity rules:
1. To participate in the activity, users need to fill in their mobile phone number and other real identitiesThe identity information is in the privacy hall and passed the verification.
2. Each user can only adopt a maximum of 1 1st generation block cat and 1 0th generation block cat.
3. During this event, 50,000 generation 0 cats will be given away. Users are on a first-come, first-served basis, while supplies last.
4. Blockcat is expected to be launched in April 2018. The official launch time and content of Blockcat activities after the launch are subject to the provisions of the Blockcat User Agreement. After Block Cat is officially launched, users can verify and redeem Block Cat on the Block Cat platform with the mobile phone number registered in this event.
5. If the user cannot find the previous appointment record after reopening the event page, he can click the appointment button again, and after completing the mobile phone verification, he can see his adoption appointment record; the event page only displays the last 20 personal appointments. Make appointments with friends for help and records.
6. If the system determines that the user has cheated, such as registering multiple users with the same IP address in a short period of time, using non-human operation methods such as auxiliary programs, or exploiting platform technology loopholes, for example, the user who adopted the block cat is the same user. In the case of mobile phone number, device, WeChat ID, the same or similar address, the same IP, the same email, etc., 360 has the right to terminate the user's qualifications to participate in this activity, cancel all activity rewards, and has the right to pursue relevant legal liabilities.
7. This activity does not charge any fees to users, and users do not invest any money in participating in this activity. According to legal regulations, Blockcat products and platforms may be adjusted, changed or even terminated at any time. Users understand this and have no objections. Zaoyin
8. 360 reserves the right to interpret this activity within the scope permitted by law.

C. Blockchain digital currency exchange platform construction solution

Digital cash exchanges are the focus of competition in the financial field. With a good digital currency exchange, It has a great advantage in peer competition. The market of digital cash exchanges is a global market, and it is involved in global trading business hosting platforms. Digital cash exchanges have different customization needs and different functions due to different data. A good digital cash exchange platform has rich functions, safe and powerful performance, and is differentiated among similar products. Blockchain digital asset exchange technology development

The unique interface of digital cash exchanges can provide convenience to customers Fund transfer methods, such as fast recharge, currency withdrawal, currency recharge, etc. It can also support multiple transaction methods, currency transactions, legal currency transactions, over-the-counter transactions, etc.

1. Off-site transactions So: Off-site exchanges are also called OTC trading markets. This is a place with no fixed place, no fixed rules and regulations, and no prescribed trading products. Users can achieve two-way transactions on off-site exchanges. The transactions are very free, just like other blockchain applications. There is no unified trading system and mechanism for off-site exchanges

2. Currency transaction: Currency transaction, as the name suggests, is a transaction between digital currency and digital currency. Currency is used as the evaluation unit to purchase other currencies. Intermediate with price priority and time priority.

3. French currency trading: French currency trading can be said to be the most direct way. What is the target price of the digital cash platform? The direct purchase transaction by users with fiat currency is a French currency exchange. The disadvantage of French currency exchange is that the currencies that can be purchased are limited. For encrypted currency types, it is necessary to purchase other types of currencies and exchange them through currency transactions.

Since the digital asset exchange is targeting the global market, its language richness is very important. The digital asset exchange not only supports the development of multiple currencies, but also supports the customized development of multiple functional modules, and also supports the development of languages ​​in various countries.

The functions of the blockchain digital asset exchange will not stop here. With the upgrade of technology in the future, new and better functions will also appear. Similarly, functional requirements also promote technology upgrades.

D. The first stock in the Metaverse, "Robulus", was only lasted for half a year as a Tencent agent

If you are not a "Robulus" player, or someone who pays close attention to information about the Metaverse, there are probably very few Everyone knows: The national server of "Robulus", known as "the first stock in the metaverse", has been discontinued.

What’s even more interesting is that most domestic investors and practitioners who are paying attention to the Metaverse have ignored this matter intentionally or unintentionally.

For Chinese consumers, the phenomenon of "Robulus" is somewhat similar to that of "Spider-Man 3: No Home", both of which cannot gain a foothold in the Chinese market due to various reasons. At the same time, it is making a killing in the Western market. This weird and real situation actually points out one of the truths about the current metaverse games, which is that "there is a bias in the understanding of the metaverse both overseas and domestically."

What exactly is the Metaverse game? In other words, what are the commonalities and characteristics of the games that are now branded as the Metaverse? Why is it being madly pursued by capital? Today Let us briefly talk about this topic.

GG - the current situation of the first Yuanverse stock in China

At 23:59 on the evening of December 8, 2021, "Robulus", an agent of Tencent, was officially shut down. The external explanation was "deleted" "The testing is over" and the company will "continue to optimize the product" in the future. However, players with good memories said that something was wrong. When it was launched on July 13, it clearly said "open to all platforms"? This unexpected reversal really confused players.

I never mentioned deleting files before, but now I delete them directly; Tencent’s rare refunds are now rare. Therefore, the outside world speculates that "Robulus" is probably really GG, and it is not a fabrication out of thin air.

In fact, since the official launch of the national server "Roblox", its rankings on the iOS free list and best-selling list have been declining. At that time, people familiar with the international server "Roblox" pointed out the problem The root cause: 1. European and American teenagers (especially the United States) have experienced "Roblox" since they were young. From education and guidance to game entertainment, it has even affected two generations. They are very familiar with this product, but there is no such mature game in China. Ecology;

Designated online dating platform for foreign primary school students

2. Domestic policy restrictions on underage players and the segregation of national and international servers have led to the "Robule" It is difficult to publish games with violent elements such as shooting and fighting, and the entertainment quality is lackluster. Looking back, comparing the tens of millions of UGC content in the international server, the volume of only a few hundred games in the national server can only be said to be too small. ;

3. Judging from the released version number information of the national server "Robulus", it was supposed to be launched on the two major platforms of mobile and PC, but the PC version has not been launched, causing some people to be keen on PC The hard-core players who operate have lost the idea of ​​recommending the national server Amway;

4. Currently, the game time of domestic underage players is very limited, and their choices are mainly social. , putting the priority of "Robulus" behind games such as "Honor of Kings", "Peace Elite", "Mini World", "Sausage Party", etc. As for adults, in addition to the few hard-core players mentioned above, Few people pay attention to this kind of product that is not popular in China and lacks entertainment.

Therefore, the popularity and glory belong to "Roblox" and have nothing to do with "Roblox".

Of course, this is not an afterthought. As early as the end of 2020, before "Robulus" was launched, relevant people tactfully expressed their distaste for it. A simple summary is " I don’t see any fun in it.”

In fact, if you think about it, it is not difficult to understand. For MMORPGs such as "Legend" and "Zhengtu" that focus on PK, even many domestic players find it difficult to understand why they continue to make money. With so much money, it is natural not to mention overseas people who did not understand the boom period of China's online game market 20 years ago.

Play&Earn——The real difficulty of Metaverse games

What is certain is that Metaverse games have different cognitive differences at home and abroad. If we think about it further, we can also find that there are actually differences between players, manufacturers, There is also very little consensus among the employers.

To be honest, I am learning thingsIn the minds of Chinese players, Metaverse games have many ready-made templates. Whether it's the American "Ready Player One" and "The Matrix", Japan's "Sword Art Online" and "Accel World", or the domestically produced "Cube Tower" and "Infinite Horror", everyone has seen or watched it more or less. Having heard about the world views of these works, I feel that the Metaverse should be a vast, free and diverse virtual world that can be switched at any time.

Most players actually want to play a cool game like "Sword Art Online"

But for manufacturers, these are things that I can't do. . Because games can only be games. If they are linked to the real economy like "Ready Player One", it will be a carnival for gold-making studios, and the impact on social and economic structures may also lead to humanitarian disasters.

If it were placed in China, without asking the relevant departments to invite the relevant departments to have tea, the "great help" from friends and studios would cause a lot of economic disputes.

In the eyes of the capital market, the Metaverse game is definitely inseparable from the element of "Play & Earn (play and make money)". Just search for the keyword "Metaverse Game" on the Internet and Zhihu, and you will see outrageous comments about making money by playing games on almost every page of answers. It seems that as long as a metaverse game is released, ordinary players like you and me can get rich by mining or tinkering with NFT in the game?

This situation still exists in theory, provided that developers and The management is like the owner and chief designer of "Oasis" in "Ready Player One" - a player who has escaped from vulgar taste and a good person in the true sense. But in reality, is this possible? When "Diablo 3" was launched, Blizzard once wanted to build an auction house system with free transactions of cash and equipment. As a result, the studio and retail players were severely slapped in the face by using cheats. , had to shut down the system. Diablo 3, a system and content that is relatively uncomplicated, is like this. How can a metaverse game that wants to install everything in it rely on to ensure the stability and health of the economic system?

Diablo 3’s former auction house system - picture from 178

There are currently many people advocating that "blockchain economy" and "NFT applications" can lay the foundation for metaverse games. In fact, there are only a few developers Some are trying to explore, while most of the others are cloud experts who are following the trend.

For example, the gameplay imitates "Let's catch monsters together" in "Pokémon GO"."Blockchain cats" have been added, allowing players to capture, purchase, collect, and breed various pet cats. When this game was launched in 2019, there was no concept of the metaverse. However, its gameplay of catching monsters in real scenes through AR technology and the introduction of blockchain technology for pet cat trading are indeed in line with the current concepts proposed at various metaverse conferences. AR/VR, 5G, blockchain, artificial intelligence and other elements.

When "Let's Catch Monsters Together" became popular, the trading of blockchain cats also flourished

Now almost no one mentions "Let's Catch Monsters Together" ”, because it was transformed from a popular hit at the beginning of its launch to a niche game due to cheats. How to prevent cheating in Metaverse games? This is a sensitive point that no one will mention or should not mention in the current discussion about how wonderful the future world of the Metaverse will be. There is also a game "Legend 4" that uses the blockchain economy, and it is also suffering from the rampant use of cheats.

There are also advertisements on the Internet recruiting people to mine "Legend 4"

However, looking back on the development history of China's online games for more than 20 years, the economic system is the most resistant to manipulation. Games, there are still only a few cases such as "Fantasy Westward Journey" and "Dungeon and Fighter" - they rely on a lot of technology and money.

Storytelling - Dress up the metaverse game as a rich and handsome man

It is said in "The Wolf of Wall Street": "Behave like a ready-made rich and handsome man, and you will become a rich and handsome man." Handsome."

In reality, there are indeed similar cases: Ten years ago, the owner of a game company drove a rented luxury supercar to the employer's office every day. I took a stroll downstairs and left a deep impression on the boss. Later, with the help of the boss's resources and connections, the game company successfully went public through a backdoor, and the company boss turned into a billionaire who can truly afford to drive a supercar. .

This is the law of the capital market. A good story attracts more capital than a good game. Even though the boss of the game company does not have a good product, he dresses himself up as a rich and handsome person and gains the confidence and favor of the capital. Similarly, metaverse games are repeating this story now.

"Roblox", the first stock in the Yuanverse that had a bad start in China, is not essentially a new concept product. It has been based on the business form of youth education and games for more than ten years, and has given Wall Street bosses They told a story that moved them. In the same way, Microsoft acquires Activision Blizzard, Tencent wants to create a "complete Internet", and MiHoYo is committed to "doing"A virtual world where 1 billion people live", these are all stories under the wave of the metaverse. It's just that compared to other stragglers, the stories of big-name companies are more confident, and their technology and talents are more tangible.

Just like the previous VR game craze and blockchain game craze, the current Metaverse game craze may be a future possibility. But for the game industry whose development process is in turmoil, Two years is too short, and no one can predict five years - otherwise Ma Huateng would not have gone to Zhihu to ask about the future of the Internet many years ago.

So now under the banner of the Metaverse game products, especially the most common "Future Star" that uses NFT to collect and exchange encrypted art and collectibles in games. I believe everyone should have an idea after seeing this.

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E. Hot! Create and play with your own blockchain in 5 minutes

Blockchain has developed so fast this year! From an unfamiliar concept at the beginning, it has now become a When various industries start, a single spark can start a prairie fire. I really hope I can have my own blockchain to practice! But how can one person and one computer set up a blockchain environment that is so popular that it can’t be compared to the industry? Blockchain, it’s not easy to say that I love you!


Don't Worry! The editor has been addicted to blockchain and smart contracts and can't extricate himself! Now I will take you step by step to start from scratch and play with your own blockchain in 5 minutes!~
The SuperVessel platform developed by IBM China Research Institute provides an area for blockchain enthusiasts and developers. Blockchain development and testing environment. Through this platform, users can create multi-node blockchains based on Hyperledger Fabric for free and super quickly, and play with smart contracts on their own chains.
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0.
Preparation
All you need is your local browser!
1. Register an account
Access the public beta address of SuperVessel blockchain service: 8800/bc.
Click the Log in button in the upper right corner, click Register in the pop-up window, fill in your email and password and submit. At this time, it is recommended to check the activation email in your email and activate your account (Editor's tip: It doesn’t matter if you are lazy to activate, but some advanced services must be activated before they can be used).
2.
Quickly create your own blockchain
After registration is completed, return to the homepage and click on the huge GIVE ME A BLOCKCHAIN ​​(Give me a blockchain!) Press the button. Select the Conse you want in the pop-up boxnsus Plugin (consensus plug-in) and Size (number of blockchain network nodes).
Editor's note: Currently there are two consensus plug-ins officially provided by Hyperledger Fabric: noops and pbft.
After clicking Submit, you will get your own blockchain in a few seconds and automatically enter the monitoring panel. That’s right, getting your own blockchain is that simple!
After entering the monitoring panel, you can see that the left side is the smart contract management panel, including the management and deployment of smart contracts; the right side is the network panel, which displays the applied blockchain network status, topology, and connections between nodes. Latency information, etc. are clear at a glance; click the telescope icon in the upper right corner to monitor the log information of each node in real time. The bottom is the blockchain panel, which shows the overall situation of the current blockchain. In the initial state, there is only one block.
3. Deploy and use smart contracts
Next, the editor will teach you how to deploy and use smart contracts on your own blockchain.
Under the Smart Contracts tab of the smart contract management panel, 2 smart contracts are listed as examples, namely map and chaincode_example02. The map contract can store key-value pairs, and the chaincode_example02 contract can simulate transfers and queries between two people.
Editor's note: The codes for these two sample contracts can be found in the Hyperledger Fabric source code.
Take the deployment and use of the chaincode_example02 contract as an example:
Deploy the contract
Click the Deploy button corresponding to the chaincode_example02 contract, and fill in the initialization value of the contract, including the contract name, initial function, and initial parameters. The initial function of the contract is init, and the initial parameters need to be filled in according to the format, such as ["a", "100", "b", "200"], which means registering two people a and b, giving them 100 units and 200 units respectively.
Click the Deploy button and the contract will be deployed in your blockchain. The process will take about 20 to 40 seconds. When a new block appears on the blockchain panel, it usually means that the contract has been deployed.
Call the contract
After the deployment is completed, view the deployed contract instance under the My Deployment tab of the smart contract management panel.
Click the Invoke button below the Action to call the smart contract, and fill in the called method name and corresponding parameters (the method names and parameters of different contracts have different meanings, which are related to the content of the contract). For this contract, call the invoke method name and fill in the parameters ["a", "b", "50"], which means a transfers 50 units to b.
After clicking Submit to complete the call, you can view the blockchain status, a new block will be generated at this time.


Query Contract
After the call is completed, you can query the contract execution results. Still under the My Deployment tab, click the Query button under Action to query the smart contract, and fill in the query method name and corresponding parameters. If you select the query method name and fill in the parameter ["a"], it means querying the current unit of a.
After clicking Submit, you can see that the current unit of a is 50. You can try query b again!
OK, then you can continue to operate the contract, observe the blockchain situation, or deploy a new smart contract, such as map, on the blockchain. For ease of use, the method names and parameter formats for deploying, calling, and querying contracts are all filled in by default. You only need to select a method name and change the parameters as you like! See how long you can play with the chain~
4. Upload and test your own private smart contract
In addition to the two public smart contracts currently provided, you can also upload and test your own private contract! Private contracts can only be seen by you.
Click Import private smart contract under the Smart Contracts tab.
After filling in the contract name and description, and uploading the contract code file, click Import to complete the upload.
Then the contract I uploaded will appear in the Smart Contracts list and can be deployed, called and queried as before.

F. How to build your own blockchain

Part 1: Build your own blockchain directory from 0 to 1:
1.1 Start with imitation, First introduction to blockchain
1.2 Basics of blockchain: analysis of consensus mechanism
1.3 Design principles and design methods of consensus mechanism
1.4 How to quickly clone a blockchain
1.5 How to Turn Bitcoin into your own private chain – fork Bitcoin
1.6 How to turn Ethereum into your own private chain – fork Ethereum
1.7 How to turn Ripple into your own private chain – fork Fork ripple
1.8 How to turn Stellar into your own private chain – fork Stellar 1.9 How to build a mining pool and mine your own genesis block
1.10 How to develop your own blockchain wallet (Windows and MAC) 1.11 How to develop your own blockchain wallet (Android and IOS) 1.12 How to develop an online wallet similar to blockchain.info 1.13 How to increase the security and robustness of your own blockchain network 1.14 How to utilizecoind to handle deposits and withdrawals
1.15 How to use a fund pool to build a currency mixing service
1.16 How to design a new mining algorithm
This is the process in general, but most people are also very Difficult to accomplish. Mature blockchain projects include Ethereum, DECENT, Bitcoin, etc.

G. Why is blockchain cat raising so popular

Just at the beginning of this month, a game using blockchain to raise cats suddenly became popular around the world. As far as I know, this is a very, very simple game. If it were placed in the game application market, it would definitely sink into the bottom immediately. To put it bluntly, this is a cat-raising game of buying, breeding, breeding, and purchasing cats.

But why does such a simple development game cause a craze all over the world? I think it’s definitely not because of the fun of the game and the cuteness of the images.

The most important point is that this game is profitable.

Players can pay to buy cats, pay to give birth to kittens (a small fee), or borrow other people’s cats to give birth to kittens (a little more); then they can sell their own cats to breed and give birth to kittens, or they can sell them Earn uncapped profits directly.

Cats are sold by auction on the website. The currency of the transaction is Ethereum, which can be exchanged for cash on foreign exchanges. Therefore, on the premise that users can continue to consume (give birth to kittens) and trade (purchase cats), blockchain cat petting becomes an asset that can generate cash flow returns.

Secondly, this kind of income is somewhat speculative.

The setting of blockchain cat care is that two cats can give birth to kittens, but each cat has several factors, including seniority, genetic tags, etc. Gene tags represent scarcity, and scarcity represents value; cats with higher seniority breed faster, so they are positively related to value.

The generation of gene tags is a black box and an opaque part of the game (most of the game is open source and disclosed in white papers). At least for now, there's no obvious analysis that points to how cats with the scarcity tag were obtained. Therefore, every time a kitten is born, a valuable and rare breed may be born, and even the program settings of the game itself may include random parameters.

This makes the entire game full of uncertainty and speculation. A speculative game, like gambling, can easily attract attention and investment.

Secondly, blockchain itself has been a hot topic in the past two years. Many people are willing to try new things. It was difficult for many people to understand blockchain technology before. Now there happens to be a simple and easy-to-use application that allows everyone to participate in the block.

Although the popularity of this game has little to do with blockchain technology, it is a very successful example of the application of blockchain technology.

H. Introduction to 1.3 billion virtual pet cats

As quoted by the online version of the British "Sunday Times" on the 10thSales data from the CryptoKitties website reported that since the game was launched 12 days ago, 70,000 CryptoKitties have been traded, with a transaction volume of more than $11 million, or about 72.82 million yuan.

This phenomenon has triggered a lot of discussion. Some people believe that this is not the first time that this kind of electronic pet has appeared. This time it is just equipped with the concept of "blockchain", and such a high price is just a bubble;