Cardano · Schema

Asset Onchain Metadata Cip25

On-chain metadata stored in the minting transaction under label 721, which adheres to https://cips.cardano.org/cips/cip25/

BlockchainCryptocurrencyProof-of-StakeSmart ContractsWeb3

Properties

Name	Type	Description
name	string	Name of the asset
image	object	URI(s) of the associated asset
description	object	Additional description
mediaType	string	Mime sub-type of image
files	array

View JSON Schema on GitHub

JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://cardano.blockfrost.io/schema/asset_onchain_metadata_cip25",
  "title": "Asset Onchain Metadata Cip25",
  "type": "object",
  "additionalProperties": true,
  "description": "On-chain metadata stored in the minting transaction under label 721,\nwhich adheres to https://cips.cardano.org/cips/cip25/\n",
  "properties": {
    "name": {
      "type": "string",
      "description": "Name of the asset",
      "example": "My NFT token"
    },
    "image": {
      "oneOf": [
        {
          "type": "string"
        },
        {
          "type": "array",
          "items": {
            "type": "string"
          }
        }
      ],
      "description": "URI(s) of the associated asset",
      "example": "ipfs://ipfs/QmfKyJ4tuvHowwKQCbCHj4L5T3fSj8cjs7Aau8V7BWv226"
    },
    "description": {
      "oneOf": [
        {
          "type": "string"
        },
        {
          "type": "array",
          "items": {
            "type": "string"
          }
        }
      ],
      "description": "Additional description",
      "example": "My NFT token description"
    },
    "mediaType": {
      "type": "string",
      "description": "Mime sub-type of image",
      "example": "image/jpeg"
    },
    "files": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": true,
        "properties": {
          "name": {
            "type": "string",
            "description": "Name of the file",
            "example": "myimage"
          },
          "mediaType": {
            "type": "string",
            "description": "Mime sub-type of image",
            "example": "image/jpeg"
          },
          "src": {
            "oneOf": [
              {
                "type": "string"
              },
              {
                "type": "array",
                "items": {
                  "type": "string"
                }
              }
            ],
            "description": "URI pointing to a resource of this mime type",
            "example": "My NFT token description"
          }
        },
        "required": [
          "mediaType",
          "src"
        ]
      }
    }
  },
  "required": [
    "name",
    "image"
  ]
}