neo protocol.json

{
  "ProtocolConfiguration": {
    "Magic": 7630401, <--- you can/should modify this number
    "AddressVersion": 23,
    "SecondsPerBlock": 15, 
    "StandbyValidators": [
      "yourkey1here",
      "yourkey2here",
      "yourkey3here",
      "yourkey4here",
    ],
    "SeedList": [
      "localhost:10333",
      "localhost:20333",
      "localhost:30333",
      "localhost:40333"
    ],
    "SystemFee": {
      "EnrollmentTransaction": 1000,
      "IssueTransaction": 500,
      "PublishTransaction": 500,
      "RegisterTransaction": 10000
    }
  }
}