NFT Processing (Metadata verification method through NFT)
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This is a continuation of the previous content.
NFT processing performs functions through tokens created in smart contracts. Since all processed functions are recorded in the blockchain network, even if the service or company disappears, all records made in the meantime are recorded in the network and can be verified. It is NFT processing that records data in real time and can be the basis for building interactive systems.
The VIW NFT verification protocol is already providing services by implementing NFT processing. NFT processing was primarily implemented through a custom smart contract
with an email authentication function. As mentioned in the overview, the proof that the original owner and owner of an NFT ‘whether the NFT is of real value’ begins through email authentication. The owner sends the certification request data (token) that certifies their NFT or data to the smart contract implementing the email certification function, and the smart contract that receives the request sends the certification completion data if the information required for certification matches, the user can acquire the certified and value recorded NFT on the blockchain network rather than the limited certification of the service. The VIW NFT verification protocol will provide NFT processing that can perform various certification/verification, starting with the currently implemented email authentication NFT processing.
Email certification NFT processing proceeds through the following steps.
Step 1.
A user using a Dapp (certificating platform) connects to the wallet and requests (e-mail) after entering information (address, email, token ID, etc.) to certificate the token they want to be certificated.
Step 2.
Receiving the request The oracle (smart contract) of the NFT platform forwards the request to the artist certification server if the request received to the artist certification server is suitable
Step 3.
The artist certification server judges the suitability of the received request and sends an certification email to the use
Step 4.
If the user confirms the certification email sent to the user’s email, a request to send the artist verification NFT token to the Oracle of the NFT processing platform is processed.
Step 5
After receiving the artist certification NFT request, the Oracle sends the artist certification key and NFT to the user.
Email certification processing NFT largely proceeds in five steps as above. Since all processes are proceeded through smart contracts, all records are recorded on the blockchain network, and the recorded history acts as a measure to verify the value of NFT. All on-chain nodes share the same information, and since real users transmit FT and NFT through their wallets, it is unclear who actually owns which wallet. However, if you create an account with the owner’s information through membership registration, store the information in an off-chain server and connect it with an on-chain node, you can verify owner information and transaction information. Accordingly, it becomes possible to identify the nodes and at the same time to check the information. Content NFTs verified off-chain are also verified on-chain, and NFTs that have already been created on-chain are verified by connecting with content provider-certified NFTs. The metadata verification method through NFT, which is an information processing method for accurate value proof and information certification, connects the server service used through the login method with the node through NFT to connect off-chain.
