{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://schema.humancellatlas.org/module/biomaterial/5.2.6/state_of_specimen",
  "description": "State of specimen at time of collection.",
  "additionalProperties": false,
  "title": "State of specimen",
  "name": "state_of_specimen",
  "type": "object",
  "properties": {
    "describedBy": {
      "description": "The URL reference to the schema.",
      "type": "string",
      "pattern": "^(http|https)://schema.(.*?)humancellatlas.org/module/biomaterial/(([0-9]{1,}.[0-9]{1,}.[0-9]{1,})|([a-zA-Z]*?))/state_of_specimen"
    },
    "schema_version": {
      "description": "The version number of the schema in major.minor.patch format.",
      "type": "string",
      "pattern": "^[0-9]{1,}.[0-9]{1,}.[0-9]{1,}$",
      "example": "4.6.1"
    },
    "autolysis_score": {
      "description": "State of tissue breakdown due to self-digestion.",
      "type": "string",
      "enum": [
        "none",
        "mild",
        "moderate"
      ],
      "user_friendly": "Autolysis score",
      "example": "Should be one of: none, mild, or moderate."
    },
    "gross_description": {
      "description": "Color, size, and other aspects of specimen as visible to naked eye.",
      "type": "string",
      "user_friendly": "Gross description"
    },
    "gross_image": {
      "description": "List of filenames of photographs of specimen without magnification. Must be of format JPEG, TIFF, or PNG.",
      "type": "array",
      "items": {
        "pattern": "^.*.jpg$|^.*.jpeg$|^.*.tiff$|^.*.png$",
        "type": "string"
      },
      "user_friendly": "Gross image",
      "example": "my_gross_image_file.jpg"
    },
    "ischemic_temperature": {
      "description": "Whether specimen experienced warm or cold ischemia.",
      "type": "string",
      "enum": [
        "warm",
        "cold"
      ],
      "user_friendly": "Ischemic temperature",
      "example": "Should be one of: warm, or cold."
    },
    "ischemic_time": {
      "description": "Duration of time, in seconds, between when the specimen stopped receiving oxygen and when it was preserved or processed.",
      "type": "integer",
      "maximum": 1000000,
      "minimum": 0,
      "example": 7200,
      "user_friendly": "Ischemic time"
    },
    "microscopic_description": {
      "description": "How the specimen looks under the microscope and how it compares with normal cells.",
      "type": "string",
      "user_friendly": "Microscopic description",
      "example": "Mixture of different cell sizes apparent."
    },
    "microscopic_image": {
      "description": "List of filenames of photographs of specimen under microscope. Must be of format JPEG, TIFF, or PNG.",
      "type": "array",
      "items": {
        "type": "string",
        "pattern": "^.*.jpg$|^.*.jpeg$|^.*.tiff$|^.*.png$"
      },
      "user_friendly": "Microscopic image",
      "example": "my_microscopic_image_file.jpg"
    },
    "postmortem_interval": {
      "description": "Duration of time, in seconds, between when death was declared and when the specimen was preserved or processed.",
      "type": "integer",
      "minimum": 0,
      "example": 2400,
      "user_friendly": "Post-mortem interval"
    }
  }
}