This app is an app that can easily prove and confirm that you have a specific NFT.
If you are the confirmer, look up and enter the contract address of the NFT collection.
* Currently, NFT collections created in opensea are not supported. We will respond in the near future.
If you are the certifier, please connect the wallet containing the specific NFT and display and present the QR Code.
You should think about the practical use of NFT.
I hope this app will help you.