{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://usemakoto.dev/schema/v0.3/envelope.schema.json",
  "title": "Makoto v0.3 DSSE Envelope",
  "type": "object",
  "required": ["payloadType", "payload", "signatures"],
  "properties": {
    "payloadType": {
      "type": "string",
      "minLength": 3,
      "maxLength": 255
    },
    "payload": { "type": "string" },
    "signatures": {
      "type": "array",
      "minItems": 1,
      "items": { "$ref": "#/$defs/signature" }
    }
  },
  "$defs": {
    "signature": {
      "type": "object",
      "required": ["keyid", "sig"],
      "properties": {
        "keyid": {
          "type": "string",
          "minLength": 71,
          "maxLength": 71
        },
        "sig": {
          "type": "string",
          "minLength": 8,
          "maxLength": 2048
        },
        "sigstoreBundle": {
          "type": "object"
        }
      },
      "oneOf": [
        {
          "properties": {
            "sig": { "minLength": 88, "maxLength": 88 },
            "sigstoreBundle": false
          }
        },
        { "required": ["sigstoreBundle"] }
      ],
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}