cube.json

{
    "elements": [
        {   "from": [ 0, 0, 0 ],
            "to": [ 16, 16, 16 ],
            "faces": {
                "down":  { "texture": "#down","cullface": ""},
                "up":    { "texture": "#up", "cullface": "" },
                "north": { "texture": "#north", "cullface": "" },
                "south": { "texture": "#south", "cullface": "" },
                "west":  { "texture": "#west", "cullface": "" },
                "east":  { "texture": "#east", "cullface": "" }
            }
        }
    ]
}