tkcointkcoin

{
  "name": "dcheckin",
  "base": "",
  "fields": [
    {
      "name": "who",
      "type": "name"
    },
    {
      "name": "periodid",
      "type": "uint32"
    },
    {
      "name": "dayid",
      "type": "uint8"
    }
  ]
}