1. "Create your own NFT collections and publish a Web3 application to show them." what is NFT

NFT What is it

I see many tutorials that make it more complicated . therefore , I will try to keep it simple .

NFT It is a kind that one can have “token”, It links to a “ data ”（ for example , Point to digital art 、 video 、 Links to images, etc ）.NFT The trick is , Every “token” Have a unique identifier , Let the owner prove that it is unique . We'll see the code later .

Let's quickly review an example .

Picasso sketch

Suppose Picasso wants to create a containing 100 A collection of sketches to sell .

We know that every sketch is unique , Because we can see that it is a solid pencil drawing . therefore , It's obvious that Picasso didn't print a bunch of copies .

How do we know it was painted by Picasso ？ Because Picasso said he painted it and signed it ！ You can buy this original Picasso now , And get a certificate from Picasso's gallery , Prove that you have one “ Picasso's original ”.

You must believe that the gallery certificate is valid for a long time , however , in general , It's quite simple ！

Picasso NFT

Now let's be in NFT Take a look at the field This example of .

for instance , Picasso wants to create a 100 A collection of sketches , Each sketch is a digital drawing , such as JPEG file .

Picasso will write his own “ Intelligent contract ”（ Run him NFT The code of all logic in the series ） To create his NFT series .

He will give each piece of art a unique identifier （ For example, sketch 1、 Sketch 2、 Sketch 3 etc. ）. then , When Picasso is ready “ Introduction ” His NFT When the series , He will use his Ethereum wallet “ signed ”NFT series . When he is ready , He will put it on the public blockchain —— Where everyone can see Picasso publicly NFT series .

then , When Picasso wanted to sell one of them NFT when , All he needs to do is use the buyer's public wallet address to NFT“ Transfer ” For those who buy it .

Buy NFT People will be very happy , Because they got ** Unique original Picasso ！ From Picasso himself ！！！** How to prove ？ The following can be ：

1. The buyer can prove NFT The series was originally signed and created by Picasso himself , because NFT It will show that it comes from the smart contract signed by Picasso . remember , Picasso signed the collection with his public address ！ Usually , Artists will publicly announce their wallet addresses , So no one can pretend to be them ！
2. The buyer can prove NFT Itself is the only Picasso sketch in the series , Because every in this series NFT Each has a unique identifier （ for example , Sketch #1、 Sketch #2、 Sketch #3 etc. ）, The identifier comes from the person who originally created the series .

ok , I hope this makes sense .

This is a very powerful concept —— The idea that any document can become unique and valuable is amazing . This is also why you may see recently Twitter etc. Yes NFT The reason for fascination , ha-ha .NFT Already changing art 、 Games and other fields .

I don't expect you to fully understand . If it makes no sense , Maybe you can read it again ！ I just want to give you some basic knowledge .