contract2.gm

{
  "name": "stratum_info",
  "base": "",
  "fields": [
    {
      "name": "item_id",
      "type": "uint16"
    },
    {
      "name": "seed",
      "type": "uint64"
    },
    {
      "name": "richness",
      "type": "uint16"
    },
    {
      "name": "reserve",
      "type": "uint32"
    },
    {
      "name": "reserve_max",
      "type": "uint32"
    }
  ]
}