Annotation

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/zipkin/refs/heads/main/json-schema/zipkin-api-v2-annotation-schema.json",
  "title": "Annotation",
  "description": "An event with a timestamp explaining latency in a span.",
  "type": "object",
  "required": ["timestamp", "value"],
  "properties": {
    "timestamp": {
      "type": "integer",
      "description": "Epoch microseconds of this event"
    },
    "value": {
      "type": "string",
      "description": "Event value, usually a short description"
    }
  }
}