{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "Neuropacket v1-min",
  "type": "object",
  "required": [
    "version",
    "packet_id",
    "ts",
    "subject_id",
    "source",
    "metrics",
    "state",
    "quality",
    "calibration_id",
    "privacy",
    "integrity"
  ],
  "properties": {
    "version": {
      "type": "string",
      "pattern": "^\\d+\\.\\d+\\.\\d+$"
    },
    "packet_id": {
      "type": "string"
    },
    "ts": {
      "type": "string",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(\\.\\d{1,3})?Z$"
    },
    "subject_id": {
      "type": "string"
    },
    "source": {
      "type": "object",
      "required": [
        "device_id",
        "sensor_profile"
      ],
      "properties": {
        "device_id": {
          "type": "string"
        },
        "sensor_profile": {
          "type": "string"
        }
      },
      "additionalProperties": false
    },
    "metrics": {
      "type": "object",
      "properties": {
        "hr_bpm": {
          "type": "number",
          "minimum": 0,
          "maximum": 300
        },
        "hrv_rmssd_ms": {
          "type": "number",
          "minimum": 0,
          "maximum": 500
        },
        "eda_uS": {
          "type": "number",
          "minimum": 0,
          "maximum": 100
        },
        "skin_temp_c": {
          "type": "number",
          "minimum": 20,
          "maximum": 45
        },
        "resp_bpm": {
          "type": "number",
          "minimum": 0,
          "maximum": 60
        },
        "spo2_pct": {
          "type": "number",
          "minimum": 0,
          "maximum": 100
        }
      },
      "additionalProperties": false
    },
    "state": {
      "type": "object",
      "required": [
        "valence",
        "arousal",
        "stress",
        "cognitive_load",
        "resilience",
        "confidence"
      ],
      "properties": {
        "valence": {
          "type": "number",
          "minimum": 0,
          "maximum": 1
        },
        "arousal": {
          "type": "number",
          "minimum": 0,
          "maximum": 1
        },
        "stress": {
          "type": "number",
          "minimum": 0,
          "maximum": 1
        },
        "cognitive_load": {
          "type": "number",
          "minimum": 0,
          "maximum": 1
        },
        "resilience": {
          "type": "number",
          "minimum": 0,
          "maximum": 1
        },
        "confidence": {
          "type": "number",
          "minimum": 0,
          "maximum": 1
        }
      },
      "additionalProperties": false
    },
    "quality": {
      "type": "object",
      "required": [
        "artifact_score",
        "calibrated",
        "missing"
      ],
      "properties": {
        "artifact_score": {
          "type": "number",
          "minimum": 0,
          "maximum": 1
        },
        "calibrated": {
          "type": "boolean"
        },
        "missing": {
          "type": "array",
          "items": {
            "type": "string"
          }
        }
      },
      "additionalProperties": false
    },
    "calibration_id": {
      "type": "string"
    },
    "privacy": {
      "type": "object",
      "required": [
        "consent_token",
        "retention",
        "scopes"
      ],
      "properties": {
        "consent_token": {
          "type": "string"
        },
        "retention": {
          "type": "string"
        },
        "scopes": {
          "type": "array",
          "items": {
            "type": "string"
          }
        }
      },
      "additionalProperties": false
    },
    "integrity": {
      "type": "object",
      "required": [
        "hash",
        "signature",
        "key_id"
      ],
      "properties": {
        "hash": {
          "type": "string"
        },
        "signature": {
          "type": "string"
        },
        "key_id": {
          "type": "string"
        }
      },
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}