ContractVersionKey.json

{
    "description": "Major element of `ProtocolVersion` combined with `ContractVersion`.",
    "type": "array",
    "items": [
        {
            "type": "integer",
            "format": "uint32",
            "minimum": 0
        },
        {
            "type": "integer",
            "format": "uint32",
            "minimum": 0
        }
    ],
    "maxItems": 2,
    "minItems": 2
}