{
  "domain": {
    "indices": [
      {
        "properties": [
          {
            "normalizedParentDomainName": "asc"
          },
          {
            "normalizedLabel": "asc"
          }
        ],
        "unique": true
      },
      {
        "properties": [
          {
            "records.dashUniqueIdentityId": "asc"
          }
        ],
        "unique": true
      }
    ],
    "properties": {
      "label": {
        "type": "string",
        "pattern": "^((?!-)[a-zA-Z0-9-]{0,62}[a-zA-Z0-9])$",
        "minLength": 3,
        "maxLength": 63,
        "description": "Domain label. e.g. 'Bob'."
      },
      "normalizedLabel": {
        "type": "string",
        "pattern": "^((?!-)[a-z0-9-]{0,62}[a-z0-9])$",
        "maxLength": 63,
        "description": "Domain label in a lower case for case insensitive uniqueness validation. e.g. 'bob'",
        "$comment": "This property will be deprecated due to case insensitive indices. Must be equal to label in lowercase"
      },
      "normalizedParentDomainName": {
        "type": "string",
        "pattern": "^$|^((?!-)[a-z0-9-\\.]{0,189}[a-z0-9])$",
        "minLength": 0,
        "maxLength": 190,
        "description": "A full parent domain name in lower case for case insensitive uniqueness validation. e.g. 'dash'",
        "$comment": "Must be equal to existing domain or can be empty if you want to create a top level domain. Only the contract owner can create top level domains"
      },
      "preorderSalt": {
        "type": "string",
        "contentEncoding": "base64",
        "minLength": 43,
        "maxLength": 43,
        "pattern": "^([A-Za-z0-9+/])*$",
        "description": "Domain pre-order salt. 32 random bytes"
      },
      "records": {
        "type": "object",
        "properties": {
          "dashUniqueIdentityId": {
            "type": "string",
            "minLength": 42,
            "maxLength": 44,
            "pattern": "^[123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz]+$",
            "description": "Identity ID string should be used to create a primary name for Identity. base58 string",
            "$comment": "Should be equal to the document owner"
          },
          "dashAliasIdentityId": {
            "type": "string",
            "minLength": 42,
            "maxLength": 44,
            "pattern": "^[123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz]+$",
            "description": "Identity ID string should be used to create multiple alias names for Identity. base58 string",
            "$comment": "Should be equal to the document owner"
          }
        },
        "$comment": "Constraint with max and min properties ensure that only one identity record is used either `dashUniqueIdentityId` or `dashAliasIdentityId`",
        "minProperties": 1,
        "maxProperties": 1,
        "additionalProperties": false
      },
      "subdomainRules": {
        "type": "object",
        "properties": {
          "allowSubdomains": {
            "type": "boolean",
            "description": "This option defines who can create subdomains"
          }
        },
        "description": "Subdomain rules allows to define rules for subdomains",
        "additionalProperties": false,
        "required": [
          "allowSubdomains"
        ]
      }
    },
    "required": [
      "label",
      "normalizedLabel",
      "normalizedParentDomainName",
      "preorderSalt",
      "records",
      "subdomainRules"
    ],
    "additionalProperties": false,
    "$comment": "In order to register domain you need to create a preorder. The preorder step is needed to prevent man-in-the-middle attacks. normalizedLabel + '.' + normalizedParentDomain must not be longer than 253 chars length as defined by RFC 1035. Domain documents are immutable: modification and deletion are restricted"
  },
  "preorder": {
    "indices": [
      {
        "properties": [
          {
            "saltedDomainHash": "asc"
          }
        ],
        "unique": true
      }
    ],
    "properties": {
      "saltedDomainHash": {
        "type": "string",
        "contentEncoding": "base64",
        "minLength": 43,
        "maxLength": 43,
        "pattern": "^([A-Za-z0-9+/])*$",
        "description": "Double sha-256 of concatenated salt, `normalizedLabel` and `normalizedParentDomainName`. Salt should be 32 random bytes"
      }
    },
    "required": [
      "saltedDomainHash"
    ],
    "additionalProperties": false,
    "$comment": "Preorder documents are immutable: modification and deletion are restricted"
  }
}