{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "required": ["basis-artifact-id", "basis-artifact-sha256", "criteria"],
  "properties": {
    "basis-artifact-id": {"type": "string", "minLength": 1},
    "basis-artifact-sha256": {"type": "string", "pattern": "^[0-9a-f]{64}$"},
    "criteria": {
      "type": "array", "minItems": 1,
      "items": {
        "type": "object",
        "required": ["criterion-id", "preconditions", "input", "expected-result", "risk-level", "verification-method"],
        "properties": {
          "criterion-id": {"type": "string", "minLength": 1},
          "preconditions": {"type": "array"},
          "input": {"type": "object"},
          "expected-result": {"type": "string", "minLength": 1},
          "risk-level": {"enum": ["Low", "Med", "High", "Critical"]},
          "verification-method": {"enum": ["automated-test", "experiment", "manual-review", "inspection"]}
        }
      }
    }
  }
}