  "mempoolminfee": 0.00000000

When the minrelaytxfee is > 0.

"        },\n"
            "     }, ...\n"
            "  ],\n"
            "  \"bip9_softforks\": {          (object) status of BIP9 softforks in progress\n"
            "     \"xxxx\" : {                (string) name of the softfork\n"
            "        \"status\": \"xxxx\",    (string) one of \"defined\", \"started\", \"locked_in\", \"active\", \"failed\"\n"
            "        \"bit\": xx,             (numeric) the bit (0-28) in the block version field used to signal this softfork (only for \"started\" status)\n"
            "        \"startTime\": xx,       (numeric) the minimum median time past of a block at which the bit gains its meaning\n"
            "        \"timeout\": xx,         (numeric) the median time past of a block at which the deployment is considered failed if not yet locked in\n"
            "        \"since\": xx,           (numeric) height of the first block to which the status applies\n"
            "        \"statistics\": {        (object) numeric statistics about BIP9 signalling for a softfork (only for \"started\" status)\n"
            "           \"period\": xx,       (numeric) the length in blocks of the BIP9 signalling period \n"
            "           \"threshold\": xx,    (numeric) the number of blocks with the version bit set required to activate the feature \n"
            "           \"elapsed\": xx,      (numeric) the number of blocks elapsed since the beginning of the current period \n"
            "           \"count\": xx,        (numeric) the number of blocks with the version bit set in the current period \n"
            "           \"possible\": xx      (boolean) returns false if there are not enough blocks left in this period to pass activation threshold \n"
            "        }\n"
            "     }\n"
            "  }\n"
            "  \"warnings\" : \"...\",         (string) any network and blockchain warnings.\n"
            "}\n"
            "\nExamples:\n"
            + HelpExampleCli("getblockchaininfo", "")
            + HelpExampleRpc("getblockchaininfo", "")
        );
    LOCK(cs_main);
    UniValue obj(UniValue::VOBJ);
    obj.push_back(Pair("chain",                 Params().NetworkIDString()));
    obj.push_back(Pair("blocks",                (int)chainActive.Height()));
    obj.push_back(Pair("headers",               pindexBestHeader ? pindexBestHeader->nHeight : -1));