JSON Structure

Below we propose a uniform JSON structure to help classify rarities directly in the JSON file. This standard allows for unlimited trait categories as well as rarity ranking.

Synergy

This standard follows the current standard for most NFT marketplaces, with additional options for things like Levels, Power Ups and more. This is an example using the Unfound Labs NFT Generator, with applied Trait Frequency (rarity_scores) and NFT Rank.

{
    "name": "My Collection #1",
    "description": "A dope collection of..",
    "image": "https://ipfs.io/path/to/nft_1.png",
    "external_url": "https://yourCoolSite.com",
    "background_color": "000000",
    "attributes": [
        {
            "trait_type": "Background",
            "value": "Blue Sun",
            "rarity_score": 10.0
        },
        {
            "trait_type": "Fur",
            "value": "Pink",
            "rarity_score": 10.0
        },
        {
            "trait_type": "Patch",
            "value": "Disintegrate Blue",
            "rarity_score": 10.0
        },
        {
            "trait_type": "Ear",
            "value": "Sand",
            "rarity_score": 10.0
        },
        {
            "trait_type": "Body",
            "value": "Exoskeleton",
            "rarity_score": 3.33
        },
        {
            "trait_type": "Eyes",
            "value": "Flesh Wound",
            "rarity_score": 5.0
        },
        {
            "trait_type": "Mouth",
            "value": "Mutt",
            "rarity_score": 5.0
        },
        {
            "trait_type": "Nose",
            "value": "Orange",
            "rarity_score": 2.5
        },
        {
            "trait_type": "Head",
            "value": "None",
            "rarity_score": 5.0
        },
        {
            "trait_type": "Item",
            "value": "Skateboard",
            "rarity_score": 10.0
        },
        {
            "trait_type": "Hand",
            "value": "Orange Exoskeleton",
            "rarity_score": 5.0
        }
    ],
    "rarity_rank": 75
}