{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://uniblock.dev/schemas/uniblock/nft.json",
  "title": "Uniblock NFT",
  "description": "Schema representing a non-fungible token with metadata, collection information, and transfer data as returned by the Uniblock Unified API.",
  "type": "object",
  "required": ["contractAddress", "tokenId"],
  "properties": {
    "contractAddress": {
      "type": "string",
      "description": "The smart contract address of the NFT collection."
    },
    "tokenId": {
      "type": "string",
      "description": "The unique token ID within the collection."
    },
    "name": {
      "type": "string",
      "description": "The name of the NFT."
    },
    "description": {
      "type": "string",
      "description": "A description of the NFT."
    },
    "tokenType": {
      "type": "string",
      "description": "The token standard type.",
      "enum": ["ERC-721", "ERC-1155"]
    },
    "imageUrl": {
      "type": "string",
      "format": "uri",
      "description": "URL to the NFT image."
    },
    "animationUrl": {
      "type": "string",
      "format": "uri",
      "description": "URL to the NFT animation or media file."
    },
    "collectionName": {
      "type": "string",
      "description": "The name of the parent collection."
    },
    "attributes": {
      "type": "array",
      "description": "List of trait attributes for the NFT.",
      "items": {
        "$ref": "#/$defs/NftAttribute"
      }
    }
  },
  "$defs": {
    "NftAttribute": {
      "type": "object",
      "description": "A trait attribute associated with an NFT.",
      "required": ["traitType", "value"],
      "properties": {
        "traitType": {
          "type": "string",
          "description": "The name of the trait category."
        },
        "value": {
          "type": "string",
          "description": "The value of the trait."
        }
      }
    },
    "NftCollection": {
      "type": "object",
      "description": "Metadata about an NFT collection.",
      "required": ["contractAddress"],
      "properties": {
        "contractAddress": {
          "type": "string",
          "description": "The smart contract address of the collection."
        },
        "name": {
          "type": "string",
          "description": "The name of the collection."
        },
        "description": {
          "type": "string",
          "description": "A description of the collection."
        },
        "symbol": {
          "type": "string",
          "description": "The symbol of the collection."
        },
        "totalSupply": {
          "type": "integer",
          "description": "The total number of NFTs in the collection.",
          "minimum": 0
        },
        "imageUrl": {
          "type": "string",
          "format": "uri",
          "description": "URL to the collection image."
        },
        "floorPrice": {
          "type": "number",
          "description": "The current floor price of the collection.",
          "minimum": 0
        },
        "chain": {
          "type": "string",
          "description": "The blockchain network the collection exists on."
        }
      }
    },
    "NftTransfer": {
      "type": "object",
      "description": "An NFT transfer event between two addresses.",
      "required": ["transactionHash", "from", "to", "contractAddress", "tokenId"],
      "properties": {
        "transactionHash": {
          "type": "string",
          "description": "The hash of the transaction containing this transfer.",
          "pattern": "^0x[a-fA-F0-9]{64}$"
        },
        "from": {
          "type": "string",
          "description": "The sender address."
        },
        "to": {
          "type": "string",
          "description": "The recipient address."
        },
        "contractAddress": {
          "type": "string",
          "description": "The smart contract address of the NFT collection."
        },
        "tokenId": {
          "type": "string",
          "description": "The token ID of the transferred NFT."
        },
        "tokenType": {
          "type": "string",
          "description": "The token standard type.",
          "enum": ["ERC-721", "ERC-1155"]
        },
        "quantity": {
          "type": "integer",
          "description": "The number of tokens transferred (relevant for ERC-1155).",
          "minimum": 1
        },
        "blockNumber": {
          "type": "integer",
          "description": "The block number in which the transfer occurred.",
          "minimum": 0
        },
        "blockTimestamp": {
          "type": "string",
          "format": "date-time",
          "description": "The timestamp of the block in which the transfer occurred."
        }
      }
    }
  }
}