{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://xcim.org/schemas/0.1/jws-envelope.schema.json",
  "title": "XCIM 0.1 JWS Flattened Envelope",
  "type": "object",
  "additionalProperties": false,
  "required": ["protected", "payload", "signature"],
  "properties": {
    "protected": {
      "type": "string",
      "minLength": 1,
      "pattern": "^[A-Za-z0-9_-]+$",
      "description": "Unpadded base64url of UTF-8 JCS protected-header bytes."
    },
    "payload": {
      "type": "string",
      "minLength": 1,
      "pattern": "^[A-Za-z0-9_-]+$",
      "description": "Unpadded base64url of UTF-8 JCS payload bytes."
    },
    "signature": {
      "type": "string",
      "minLength": 86,
      "maxLength": 86,
      "pattern": "^[A-Za-z0-9_-]+$",
      "description": "Unpadded base64url Ed25519 signature (64 bytes)."
    }
  }
}