$ bitcoin-cli -regtest getblockchaininfo
{
  "chain": "regtest",
  "blocks": 106,
  "headers": 106,
  "bestblockhash": "584a14a4d71fa98be9297f7ff70754533f6778b9e3ab4ba9fb2340fbe3b1e88b",
  "difficulty": 4.656542373906925e-10,
  "mediantime": 1592948117,
  "verificationprogress": 1,
  "initialblockdownload": true,
  "chainwork": "00000000000000000000000000000000000000000000000000000000000000d6",
  "size_on_disk": 33373,
  "pruned": false,
  "softforks": {
    "bip34": {
      "type": "buried",
      "active": false,
      "height": 500
    },
    "bip66": {
      "type": "buried",
      "active": false,
      "height": 1251
    },
    "bip65": {
      "type": "buried",
      "active": false,
      "height": 1351
    },
    "csv": {
      "type": "buried",
      "active": false,
      "height": 432
    },
    "segwit": {
      "type": "buried",
      "active": true,
      "height": 0
    },
    "testdummy": {
      "type": "bip9",
      "bip9": {
        "status": "defined",
        "start_time": 0,
        "timeout": 9223372036854775807,
        "since": 0
      },
      "active": false
    }
  },
  "warnings": ""
}