{
    "id": "OPENSM",
    "source": {
        "crs": "EPSG:3857",
        "isInverted": true,
        "format": "image/png",
        "url": "http://osm.oslandia.io/styles/klokantech-basic/${z}/${x}/${y}.png",
        "attribution": {
            "name":"OpenStreetMap",
            "url": "http://www.openstreetmap.org/"
        },
        "tileMatrixSet": "PM"
    }
}