td-properties_existence.json

{
    "title": "td-properties_existence",
    "description": " Properties (and sub-properties) offered by a Thing MUST be collected in the JSON-object based properties member with (unique) Property names as JSON names. (Checking their existence)",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "also": ["td-vocab-properties--Thing", "td-objects_properties"],
    "is-complex": false,
    "type": "object",
    "properties": {
        "properties": {
            "additionalProperties": {
                "type": "object"
            }
        }
    },
    "required": ["properties"],
    "additionalProperties": true
}