{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://paperspec.scient.ing/schemas/witnesses.schema.json",
  "title": "Witnesses",
  "description": "witnesses.json of a package; spec/02-model.md.",
  "type": "object",
  "properties": {
    "witnesses": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "id": {
            "$ref": "common.schema.json#/$defs/nodeId"
          },
          "sha256": {
            "$ref": "common.schema.json#/$defs/hash"
          },
          "size": {
            "type": "integer",
            "minimum": 0
          },
          "kind": {
            "enum": [
              "pdf",
              "jats",
              "latex",
              "html",
              "epub",
              "typst",
              "xml",
              "image",
              "other"
            ]
          },
          "media_type": {
            "type": "string",
            "minLength": 1
          },
          "pages": {
            "type": "integer",
            "minimum": 1
          },
          "text_layer": {
            "type": "boolean"
          },
          "version_label": {
            "type": "string",
            "minLength": 1
          },
          "origin": {
            "type": "object",
            "properties": {
              "source": {
                "enum": [
                  "publisher",
                  "repository",
                  "preprint-server",
                  "author",
                  "team",
                  "licensed-delivery",
                  "library",
                  "other"
                ]
              },
              "url": {
                "$ref": "common.schema.json#/$defs/url"
              },
              "doi": {
                "type": "string",
                "minLength": 1
              },
              "retrieved_at": {
                "$ref": "common.schema.json#/$defs/time"
              },
              "note": {
                "type": "string",
                "minLength": 1
              }
            },
            "required": [
              "source"
            ],
            "additionalProperties": false
          },
          "rights": {
            "$ref": "rights.schema.json"
          }
        },
        "required": [
          "id",
          "sha256",
          "size",
          "kind",
          "media_type",
          "origin",
          "rights"
        ],
        "additionalProperties": false
      },
      "minItems": 1
    }
  },
  "required": [
    "witnesses"
  ],
  "additionalProperties": false
}