Soliciting opinions on the MRC-721 standard proposal for NFT asset protocol in MetaID

[lgs18928191781]

1. Why propose the MRC-721 protocol under MetaID?

• Under the MetaID protocol, any PIN can be an NFT. The introduction of MRC-721 aims to uniformly specify any NFT recorded in a designated collection by the NFT creator.

• Based on the MetaID protocol, any PIN can be considered as an NFT. Creators can manage NFTs through the NFT protocol and provide a unified standard for NFT asset application extensions.

2. How does the MRC-721 protocol associate with MetaID?

• Propose to add a base node named 'NFT' under the rootId of the MetaID protocol.

• The MRC-721 proposes to include a node named 'Collection' under the 'NFT' node, where creators can declare any NFT collection under the Collection node.

3. What is NFT Collection?

A standard NFT Collection contains the following information

• • TotalSupply

• • Name

• • Intro

• • Cover

• • Website

The MRC-721 protocol stipulates that the Collection includes the following fields

• Collection

Json

{   
    “totalSupply”:"{Collection Minting Limit}",   
    “collectionName”:"{Collection Name}",     
    “intro”:"{Collection intro}",   
    “cover”:"{Collection Cover Image}",    
    “website”:"{Collection Official Website}",  
    “metaData”:"{Used for appending additional extra information,non-mandatory field}"
 }

About Collection Item

Users do not need to declare the NFT serial number and validity. This part is handled by the indexer for sorting and validation.

• items

Items represent the payload of each NFT in the Collection.

Json

{   
    "nftName":"Demo NFT item name",
    "content":"metafile://[PINID]",
    "intro":"Demo NFT item intro",
    "collectionId":"Demo Collection Genesis PINID",
    “metaData”:"{Used for appending additional extra information,non-mandatory field}"
 }

Epilogue

MRC-721 is currently in the drafting phase, and the final adoption result will be determined by the open-source community. Other developers are welcome to provide suggestions.