{
  "archversion": "2015.05.01",
  "isochecksum": "84387d095141ac2a4fd8c83ca0908ffa543a1d3b",
  "isochecksumtype": "sha1",
  "pathtoiso": "http://archlinux.mirror.dkm.cz/pub/archlinux/iso"
}

{
  "archversion": "2015.05.01",
  "isochecksum": "84387d095141ac2a4fd8c83ca0908ffa543a1d3b",
  "isochecksumtype": "sha1",
  "pathtoiso": "http://mirror.oss.maxcdn.com/archlinux/iso"
}

Switch to a new mirror for ISO download
Switch to a new mirror for ISO download

Previous one seems to be down.
