{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://paperspec.scient.ing/schemas/value-anchor.schema.json",
  "title": "Value anchor",
  "description": "One line of a dataset's anchors.jsonl: where one value came from; spec/15-datasets.md.",
  "type": "object",
  "properties": {
    "resource": {
      "$ref": "common.schema.json#/$defs/key"
    },
    "row": {
      "$ref": "common.schema.json#/$defs/key"
    },
    "field": {
      "type": "string",
      "minLength": 1
    },
    "anchor": {
      "$ref": "anchor.schema.json"
    },
    "digitization": {
      "$ref": "common.schema.json#/$defs/recordId"
    },
    "series": {
      "type": "string",
      "minLength": 1
    },
    "point": {
      "type": "integer",
      "minimum": 0
    }
  },
  "required": [
    "resource",
    "row",
    "field"
  ],
  "additionalProperties": false,
  "oneOf": [
    {
      "required": [
        "anchor"
      ]
    },
    {
      "required": [
        "digitization",
        "series",
        "point"
      ]
    }
  ]
}