{
  "$schema":"https://json-schema.org/draft/2020-12/schema",
  "title":"Synthetic product fact record, not a customer specification",
  "type":"object",
  "additionalProperties":false,
  "required":["entity_id","model","voltage_v","tank_l","source_version","scope","evidence_id","label"],
  "properties":{
    "entity_id":{"type":"string","pattern":"^demo:"},
    "model":{"type":"string","minLength":1},
    "voltage_v":{"type":"number","exclusiveMinimum":0},
    "tank_l":{"type":"number","exclusiveMinimum":0},
    "source_version":{"type":"string","pattern":"^v[0-9]+$"},
    "scope":{"type":"string","minLength":1},
    "evidence_id":{"type":"string","pattern":"^D[0-9]+$"},
    "label":{"type":"string","minLength":1}
  }
}