GCN Circular

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schemas.intelligence.ai/nasa/gcn/v4.1.0/circulars.schema.json",
  "title": "GCN Circular",
  "description": "GCN Circulars are rapid astronomical bulletins submitted by and distributed to community members worldwide. They are used to share discoveries, observations, quantitative near-term predictions, requests for follow-up observations, or future observing plans related to high-energy, multi-messenger, and variable or transient astrophysical events. An archive of all GCN Circulars can be found at https://gcn.nasa.gov/circulars",
  "type": "object",
  "required": [
    "eventId",
    "submitter",
    "subject",
    "circularId",
    "body",
    "createdOn"
  ],
  "properties": {
    "format": {
      "description": "Format of the body text as a MIME type. See https://gcn.nasa.gov/docs/circulars/markdown for documentation on using Markdown in Circulars",
      "enum": [
        "text/plain",
        "text/markdown"
      ]
    },
    "body": {
      "description": "Body text",
      "type": "string"
    },
    "circularId": {
      "description": "Circular ID assigned to the Circular in the GCN Circulars archive. This value is unique to each published Circular and increments by 1",
      "type": "number"
    },
    "createdOn": {
      "description": "Date and time the Circular is accepted and published onto the GCN Circulars archive, formatted as a UNIX timestamp (milliseconds since the UNIX epoch)",
      "type": "number"
    },
    "eventId": {
      "description": "Event name, automatically inferred from the subject",
      "type": "string"
    },
    "subject": {
      "description": "Subject line of the Circular",
      "type": "string"
    },
    "submittedHow": {
      "description": "Specifies the method by which the user submitted the Circular",
      "enum": [
        "web",
        "email",
        "email-legacy",
        "api"
      ]
    },
    "submitter": {
      "description": "Name, affiliation, and email address of the person who submitted the Circular, in the form `A. E. Einstein at IAS `",
      "type": "string"
    }
  }
}