5 technical vulnerabilities related to NFT

NFT  In a very short period of time , But the shortcomings have never been solved . For wanting to understand  NFT  For people who , Its  5  Technical loopholes must be known .

Technical loophole 1 ： Assets are not on the blockchain

Most of the problems stem from the fact that , Because the most popular  NFT  Chain is Ethereum , Bad design （ Big data storage problems and high costs ） So that the actual assets are stored on the blockchain （ for example  JPEG） Too expensive or impossible , Or because of the size of the block or transaction costs .

When  NFT  There has been such a drawback since its emergence , But I think it has not been solved . Usually the solution is through  HTTP  Elsewhere （ That is, on the network server ） Contains a link to the file , If stored in IPFS First class .IPFS  It's basically a modern torrent , A network accessible file system , Stored on hundreds of computers .

Technical loopholes  2： Refer to the  URL  Not forever

Even if Ethereum blockchain always exists （ Is unlikely to ）, Assets are still stored in  IPFS  On . stay  90  Age and  2000  years , There are thousands like  IPFS  Such seeds no longer exist .

Technical loopholes  3：NFT  Only unique in a single blockchain

Now Ethereum is  NFT  The main blockchain of . But in the future , This can easily become  Tezos、Stellar、Hyperledger Sawtooth、Hyperledger Fabric、Corda、Algorand、Tron  or  1000  One of multiple blockchains . Look back at the early days of the Internet , You can see how fast the platform comes and goes , For example, browser companies  Netscape Navigator .

Even today ,NFT  Of “ Uniqueness ” Only in the chain . Just like choosing a user name , If you call yourself... On wechat  DevPoint, Others can go to any other website （ Microblogging 、 Meituan, etc ） Use this user name on . On different blockchains  NFT  So it is with .

Technical loopholes  4： Multiple  NFT  You can quote the same  URL

HTTP  The agreement does not include a reference to  NFT  Claims to provide irreplaceable protection . Even in the Ethereum blockchain , Also cannot check another  NFT  Whether the same  URL（ And for design reasons , It's probably too expensive ）. therefore , Of the same asset  NFT  It can be cast twice .

Technical loopholes  5： Assets are right  URL  References to , You can change

because  NFT  Just one quote  HTTP  Address , If the address changes ,NFT  It's going to change .