{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "SCUMRewardDeliverConfirmation",
  "type": "object",
  "additionalProperties": false,
  "required": ["grantId", "outcome", "observedAt"],
  "properties": {
    "grantId": { "type": "string", "minLength": 1, "maxLength": 160 },
    "outcome": { "enum": ["delivered", "failed", "unknown"] },
    "observationId": { "type": "string", "minLength": 1, "maxLength": 160 },
    "observedAt": { "type": "string", "format": "date-time" }
  }
}