{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://montrealai.github.io/proof-gradient/standards/AEP-003/schemas/proof_packet_attestation.schema.json",
  "title": "AEP-003 ProofPacket Attestation",
  "type": "object",
  "required": [
    "attestation_id",
    "packet_id",
    "attestor",
    "attestation_type",
    "statement",
    "created_at"
  ],
  "properties": {
    "attestation_id": {
      "type": "string"
    },
    "packet_id": {
      "type": "string"
    },
    "attestor": {
      "type": "string"
    },
    "attestation_type": {
      "type": "string",
      "enum": [
        "human_review",
        "system_validation",
        "eval_attestation",
        "policy_attestation",
        "external_audit",
        "timestamp"
      ]
    },
    "statement": {
      "type": "string"
    },
    "created_at": {
      "type": "string"
    },
    "signature": {
      "type": "object"
    }
  }
}