{
"blocks" : 471,
"currentblocksize" : 1000,
"currentblocktx" : 0,
"difficulty" : 26114.69911165,
"errors" : "",
"generate" : false,
"genproclimit" : -1,
"hashespersec" : 0,
"networkhashps" : 1146687691927,
"pooledtx" : 0,
"testnet" : false
}

Strange difficulty for only block 471