diff --git a/src/main.cpp b/src/main.cpp
index 3ae1c0e59..ea0ed3713 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3105,8 +3105,9 @@ void static UpdateTip(CBlockIndex *pindexNew, const CChainParams& chainParams) {
     nTimeBestReceived = GetTime();
     mempool.AddTransactionsUpdated(1);
 
-    LogPrintf("%s: new best=%s  height=%d  log2_work=%.8g  tx=%lu  date=%s progress=%f  cache=%.1fMiB(%utx)\n", __func__,
-      chainActive.Tip()->GetBlockHash().ToString(), chainActive.Height(), log(chainActive.Tip()->nChainWork.getdouble())/log(2.0), (unsigned long)chainActive.Tip()->nChainTx,
+    LogPrintf("%s: new best=%s  height=%d bits=%d log2_work=%.8g  tx=%lu  date=%s progress=%f  cache=%.1fMiB(%utx)\n", __func__,
+      chainActive.Tip()->GetBlockHash().ToString(), chainActive.Height(), chainActive.Tip()->nBits,
+      log(chainActive.Tip()->nChainWork.getdouble())/log(2.0), (unsigned long)chainActive.Tip()->nChainTx,
       DateTimeStrFormat("%Y-%m-%d %H:%M:%S", chainActive.Tip()->GetBlockTime()),
       Checkpoints::GuessVerificationProgress(chainParams.Checkpoints(), chainActive.Tip()), pcoinsTip->DynamicMemoryUsage() * (1.0 / (1<<20)), pcoinsTip->GetCacheSize());
 
diff --git a/src/pow.cpp b/src/pow.cpp
index 79f420d08..7e95df8e0 100644
--- a/src/pow.cpp
+++ b/src/pow.cpp
@@ -12,7 +12,6 @@
 #include "primitives/block.h"
 #include "streams.h"
 #include "uint256.h"
-#include "util.h"
 
 #include "sodium.h"
 
@@ -71,9 +70,7 @@ unsigned int CalculateNextWorkRequired(arith_uint256 bnAvg,
     // Limit adjustment step
     // Use medians to prevent time-warp attacks
     int64_t nActualTimespan = nLastBlockTime - nFirstBlockTime;
-    LogPrint("pow", "  nActualTimespan = %d  before dampening\n", nActualTimespan);
     nActualTimespan = averagingWindowTimespan + (nActualTimespan - averagingWindowTimespan)/4;
-    LogPrint("pow", "  nActualTimespan = %d  before bounds\n", nActualTimespan);
 
     if (nActualTimespan < minActualTimespan) {
         nActualTimespan = minActualTimespan;
@@ -92,12 +89,6 @@ unsigned int CalculateNextWorkRequired(arith_uint256 bnAvg,
         bnNew = bnPowLimit;
     }
 
-    /// debug print
-    LogPrint("pow", "GetNextWorkRequired RETARGET\n");
-    LogPrint("pow", "params.AveragingWindowTimespan(%d) = %d    nActualTimespan = %d\n", nextHeight, averagingWindowTimespan, nActualTimespan);
-    LogPrint("pow", "Current average: %08x  %s\n", bnAvg.GetCompact(), bnAvg.ToString());
-    LogPrint("pow", "After:  %08x  %s\n", bnNew.GetCompact(), bnNew.ToString());
-
     return bnNew.GetCompact();
 }
 
@@ -138,11 +129,11 @@ bool CheckProofOfWork(uint256 hash, unsigned int nBits, const Consensus::Params&
 
     // Check range
     if (fNegative || bnTarget == 0 || fOverflow || bnTarget > UintToArith256(params.powLimit))
-        return error("CheckProofOfWork(): nBits below minimum work");
+        return false;
 
     // Check proof of work matches claimed amount
     if (UintToArith256(hash) > bnTarget)
-        return error("CheckProofOfWork(): hash doesn't match nBits");
+        return false;
 
     return true;
 }