simplest_viz.json

vizjson({
  "version": "0.1.0",
  "title": "fake",
  "scrollwheel": true,
  "zoom": 3,
  "bounds": [
      [
          -44.46515101351962,
          -133.06640625
      ],
      [
          74.16408546675687,
          164.8828125
      ]
  ],
  "center": "[30.14512718337613, 15.908203125]",
  "layers": [
      {
          "options": {
            order: 0,
            visible: true,
            name: "Positron",
            urlTemplate: "http://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}.png",
            read_only: true,
            minZoom: 0,
            maxZoom: 18,
            attribution: "© <a href=\"http://www.openstreetmap.org/copyright\">OpenStreetMap</a> contributors © <a href=\"http://cartodb.com/attributions#basemaps\">CartoDB</a>",
            subdomains: "abcd"
          },
          "order": 0,
          "tooltip": null,
          "type": "tiled"
      }
  ]
})