{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://scient.ing/ns/schemas/mathml.schema.json",
  "title": "Derived MathML",
  "description": "One line of derived/mathml.jsonl: MathML made by a pinned tool; never authoritative; spec/12-package.md.",
  "type": "object",
  "properties": {
    "node": {
      "$ref": "common.schema.json#/$defs/nodeId"
    },
    "run": {
      "anyOf": [
        {
          "type": "integer",
          "minimum": 0
        },
        {
          "type": "null"
        }
      ]
    },
    "tool": {
      "type": "object",
      "properties": {
        "name": {
          "type": "string",
          "minLength": 1
        },
        "version": {
          "type": "string",
          "minLength": 1
        }
      },
      "required": [
        "name",
        "version"
      ],
      "additionalProperties": false
    },
    "mathml": {
      "type": "string",
      "pattern": "^<math[ >]"
    }
  },
  "required": [
    "node",
    "run",
    "tool",
    "mathml"
  ],
  "additionalProperties": false
}