{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://decisionprovenancestandard.org/schemas/v5.0/layer-4-attestation.schema.json",
  "title": "mode_classification_attestation — Layer 4 Named Human Attestation",
  "description": "Structured object (NOT scalar — scalar invites copy-paste; object forces sub-fields to populate). Per the Standard's Mode-Drift Layer 4 attestation. Load-bearing for the final-mode binary scope-check criterion.",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "attestor_full_name",
    "attestor_role_title",
    "attestor_employer",
    "attestation_timestamp",
    "jurisdiction",
    "attestation_language_version",
    "attestation_text_signed",
    "attestor_capacity"
  ],
  "properties": {
    "attestor_full_name": {
      "type": "string",
      "minLength": 1,
      "description": "Legal name as on employment record."
    },
    "attestor_role_title": {
      "type": "string",
      "minLength": 1,
      "description": "Role title at attestation moment."
    },
    "attestor_employer": {
      "type": "string",
      "minLength": 1,
      "description": "Legal entity employing the attestor. Capacity cabining language binds liability to the employer."
    },
    "attestation_timestamp": {
      "type": "string",
      "format": "date-time",
      "description": "ISO 8601 UTC. System-stamped, NOT user-editable."
    },
    "jurisdiction": {
      "type": "string",
      "enum": ["US-DE", "US-FED", "UK", "EU", "IL", "OTHER"],
      "description": "Determines which jurisdictional variant of attestation_text_signed applies."
    },
    "attestation_language_version": {
      "type": "string",
      "pattern": "^v\\d+\\.\\d+(-[A-Z]{2,3})?$",
      "description": "Captures which jurisdictional variant was in force at attestation time. e.g., 'v1.0-US', 'v1.0-EU'."
    },
    "attestation_text_signed": {
      "type": "string",
      "minLength": 200,
      "description": "Verbatim language the attestor signed. Captures the version actually signed (preserves provenance even if attestation language is later revised)."
    },
    "attestor_capacity": {
      "type": "string",
      "enum": ["employee", "contractor", "officer", "director"],
      "description": "Load-bearing for liability analysis. Officer/director capacity carries different indemnification surface than employee/contractor."
    }
  }
}