{
  "type": "object",
  "description": "A historical property value",
  "name": "PropertyHistory",
  "properties": {
    "value": {
      "type": "string",
      "description": "The property value"
    },
    "timestamp": {
      "type": "datetime",
      "description": "When this value was set"
    },
    "sourceType": {
      "type": "string",
      "description": "The source that set this value"
    },
    "sourceId": {
      "type": "string",
      "description": "The identifier of the source"
    },
    "sourceLabel": {
      "type": "string",
      "description": "A human-readable label for the source"
    },
    "updatedByUserId": {
      "type": "integer",
      "description": "The user ID that made the change"
    }
  },
  "required": [
    "value",
    "timestamp",
    "sourceType"
  ],
  "$schema": "https://json-structure.org/draft/2020-12/schema"
}