NFT Contract

We keep our eyes on the contemporary NFT standards, not only the EIPs but also the community materials, including

• NFT Standards Working Group

• OpenSea's Metadata Standards

Specification of Metadata

Property	Description	Property Upstream
name	The name of the NFT.	ERC-721
description	A brief description of the NFT, which can also be set to the same value as name	ERC-721
image	A URL pointing to the primary image associated with the NFT, which can also be set to the same value as the asset_file	ERC-721
asset_id	A unique identifier, Nid, for the NFT asset	Numbers Protocol
asset_file	A URL pointing to the actual asset file that represents the NFT	Numbers Protocol
creator	The address of the creator of the NFT	Numbers Protocol
animation_url	A URL pointing to an animation associated with the NFT, which can also be set to the same value as the asset_file	OpenSea
(deprecated) supporting_file	A URL pointing to the supporting file associated with the NFT	Numbers Protocol
(deprecated) marketplace	The URL of the marketplace where this NFT is listed, which is https://captureclub.cc in this case	Numbers Protocol
(deprecated) parent_token	The token ID of the parent NFT, if this asset is a child NFT	Numbers Protocol
(deprecated) parent_contract_address	The contract address of the parent NFT contract, if this asset is a child NFT	Numbers Protocol
(deprecated) parent_network	The ID of the blockchain network on which the parent NFT contract is deployed, if this asset is a child NFT	Numbers Protocol

Here is an example of the metadata:

{
  "name": "Bangladesh Status",
  "description": "Bangladesh Status",
  "image": "https://ipfs.io/ipfs/bafybeihlesxaiwtvd4ce27v6wfkntlemluq4b5njmhhzvmkjww5oalaglu",
  "asset_file": "https://ipfs.io/ipfs/bafybeihlesxaiwtvd4ce27v6wfkntlemluq4b5njmhhzvmkjww5oalaglu",
  "supporting_file": "",
  "parent_token": null,
  "parent_contract_address": null,
  "parent_network": null,
  "asset_id:": "bafybeihlesxaiwtvd4ce27v6wfkntlemluq4b5njmhhzvmkjww5oalaglu",
  "creator": "0xcCe339eB1159b392Fd0A7488a3C6403BB42123D6",
  "marketplace": "https://captureclub.cc",
  "animation_url": "https://ipfs.io/ipfs/bafybeihlesxaiwtvd4ce27v6wfkntlemluq4b5njmhhzvmkjww5oalaglu"
}