Development of digital Tibetan product system NFT digital Tibetan product system exception handling source code sharing

If someone with 6900 An electronic pattern consisting of a stack of pixels is sold for $million , Don't you think this is an illusion ？ If you don't understand what you're saying , Today we are going to help you popularize the popular NFT. Full name Non-fungible token, Chinese name is non-fungible token, Also called irreplaceable . token .

 
  One . Selling pixel paintings is no longer a myth

  Digital artist Mike · Winckelmann （Mike Winkelman） A pure digital art work “ Every day ： front 5,000 God ” With 69,346,250 Sold in dollars , It has recently become a hot topic in the art world .

  Along with pure digital art works, there are also “NFT”, That is, the irreplaceable token , They are our main characters today . As a new digital art model ,NFT It provides a way for creators to get appropriate compensation . Interestingly , Many large purchases NFT Are pixel art created by algorithm .

Two 、 Collections in blockchain NFT

So what is NFT
NFT It is a legend about how artists get rich overnight by selling electronic artworks . It revolves around blockchain , Closely linked to art and collectibles
For art and collectibles , Scarcity has always been an important factor in determining the value of collections . A heterogeneous token is a cryptocurrency , But the assets it represents are the only . They can be digital assets , It can also be a symbolic form of physical assets . because NFT Is irreplaceable , Therefore, they can be used as proof of authenticity and ownership in the digital field

Compared with non replaceability , Interchangeability means that the units of an asset can be replaced with each other , And there's no way to distinguish . It's like legal tender , a sheet 10 Dollar bills can be compared with any other 10 Change into US dollar bills . Currency interchangeability is a desirable attribute . Because of this property , It can be freely exchanged , We don't have to worry about who is this 10 The first owner of a dollar bill
However , This feature is not a useful attribute for collectibles . for example , If you give a friend a true copy of Leonardo da Vinci , You certainly don't want your friend to exchange this true copy with you . therefore ,NFT It is a form of electronic ownership , This means that you are the owner of the art

3、 ... and .Beeple, An important figure in pixel art
Next , Let's talk about Beeple, Formerly known as Mike Winckelmann , He plays a decisive role in the field of pixel art . He is NFT Cutting edge innovative digital artists . His masterpiece is what we mentioned at the beginning “ Every day ： front 5000 God ”, the 39 A year old man was born in Wisconsin . He is the father of two children , His wife is a teacher .BiP Graduated from the computer department of Purdue University . He has no artistic training . In my career , I have helped enterprises design web pages in a short time . I heard that an English artist is famous for drawing every day . since 2007 year 5 Since the month , He has been devoted to collecting computer animation 《 every single day 》.2018 year , It began to attract Internet attention , Except every day ： front 5000 Days by Christie's auction .

《 crossroads 》

2020 year 10 month , The collector Rodriguez Freire used 66,666 element 6 horn 6 I bought it for dollars Beeple The works of 《 crossroads 》. This is just 10 Second video and audio works in 2021 year 2 At the end of the month 660 Million dollars for resale , The value has doubled in just a few months 100 times . Bipu is widely respected by the new generation . He was in Instagram There are 180 Thousands of fans . His works have been exhibited in two Super Bowl midfield shows and Justin Bieber's concerts .

Four 、 A cloud sucking cat that sells its master at sky high prices

Electronic pets are familiar to everyone , The cloud sucking cat has also become the spiritual sustenance of many young people , But bidding up to hundreds of thousands of dollars to buy an electronic pet cat may be an amazing thing for many people .

This amazing website is called CryptoKitties.co, It has just been launched and has attracted a lot of attention . Users can buy virtual cats on this website , And trade with other players through the platform . Each virtual cat is unique , Completely personal , They cannot be copied 、 Cannot delete , Nor can it be stolen . The encryption cat uses NFT technology , They give each cat a special tag number , Make it a unique cat .

You have an encrypted cat , You have digital ownership of it , Players can also use their own cats to mate with other cats , Eventually a brand new cat will be born . According to the developers , Every cat has 256 Genome of loci , Some genes are dominant , Some are hidden . Giving birth to a new kitten will randomly inherit the genes of both parents . The rarer your cat is , Can be sold on Ethereum at a higher price .

NFT Digital Tibetan product system development part of the core code sharing ：

<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2019 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <[email protected]>
// +----------------------------------------------------------------------

namespace app;

use think\db\exception\DataNotFoundException;
use think\db\exception\ModelNotFoundException;
use think\exception\Handle;
use think\exception\HttpException;
use think\exception\HttpResponseException;
use think\exception\ValidateException;
use think\Response;
use Throwable;

/**
 *  Apply exception handling classes 
 */
class ExceptionHandle extends Handle
{
    /**
     *  There is no need to record information （ journal ） List of exception classes for 
     * @var array
     */
    protected $ignoreReport = [
        HttpException::class,
        HttpResponseException::class,
        ModelNotFoundException::class,
        DataNotFoundException::class,
        ValidateException::class,
    ];

    /**
     *  Record abnormal information （ Including logging or other means of recording ）
     *
     * @access public
     * @param  Throwable $exception
     * @return void
     */
    public function report(Throwable $exception): void
    {
        //  Use the built-in method to log exceptions 
        parent::report($exception);
    }

    /**
     * Render an exception into an HTTP response.
     *
     * @access public
     * @param \think\Request   $request
     * @param Throwable $e
     * @return Response
     */
    public function render($request, Throwable $e): Response
    {
        //  Add custom exception handling mechanism 

        //  Other errors are handled by the system 
        return parent::render($request, $e);
    }
}