diff --git a/src/pow.cpp b/src/pow.cpp
index f8c09556e..14b5ddbb8 100644
--- a/src/pow.cpp
+++ b/src/pow.cpp
@@ -187,6 +187,16 @@ arith_uint256 zawy_exponential(arith_uint256 bnTarget,int32_t mult)
 
 // 17:03 6x at ht.255 launch for ZAWY17
 
+arith_uint256 zawy_ctB(arith_uint256 bnTarget,uint32_t solvetime)
+{
+    bnTarget /= arith_uint256(K);
+    bnTarget *= arith_uint256((int64_t)solvetime * solvetime * 1000);
+    bnTarget /= arith_uint256(T * T * 784);
+    bnTarget *= arith_uint256(K);
+    return(bnTarget);
+}
+
+
 unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock, const Consensus::Params& params)
 {
     if (ASSETCHAINS_ALGO != ASSETCHAINS_EQUIHASH && ASSETCHAINS_STAKED == 0)
@@ -245,6 +255,8 @@ unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHead
         for (i=0; pindexFirst != 0 && i<(int32_t)(sizeof(ct)/sizeof(*ct))-1; i++)
         {
             if ( zflags[i] != 0 )
+                ct[i] = zawy_ctB(ct[i],ts[i] - ts[i+1]);
+
             {
                 ct[i] /= arith_uint256(K);
                 ct[i] *= arith_uint256((int64_t)(ts[i] - ts[i+1]) * (ts[i] - ts[i+1]) * 1000);
diff --git a/src/rpc/mining.cpp b/src/rpc/mining.cpp
index 91c94893d..e14a1cd05 100644
--- a/src/rpc/mining.cpp
+++ b/src/rpc/mining.cpp
@@ -404,30 +404,35 @@ UniValue setgenerate(const UniValue& params, bool fHelp)
 #endif
 
 CBlockIndex *komodo_chainactive(int32_t height);
+arith_uint256 zawy_ctB(arith_uint256 bnTarget,uint32_t solvetime);
 
 UniValue genminingCSV(const UniValue& params, bool fHelp)
 {
-    int32_t i,z,height; uint32_t prevtime=0; FILE *fp; char str[65],str2[65],fname[256]; uint256 hash; arith_uint256 bnTarget; CBlockIndex *pindex; bool fNegative,fOverflow; UniValue result(UniValue::VOBJ);
+    int32_t i,z,height; uint32_t solvetime,prevtime=0; FILE *fp; char str[65],str2[65],fname[256]; uint256 hash; arith_uint256 bnTarget; CBlockIndex *pindex; bool fNegative,fOverflow; UniValue result(UniValue::VOBJ);
     if (fHelp || params.size() != 0 )
         throw runtime_error("genminingCSV\n");
     LOCK(cs_main);
     sprintf(fname,"%s_mining.csv",ASSETCHAINS_SYMBOL[0] == 0 ? "KMD" : ASSETCHAINS_SYMBOL);
     if ( (fp= fopen(fname,"wb")) != 0 )
     {
-        fprintf(fp,"height,nTime,nBits,bnTarget,blockhash,diff,netdiff,solvetime\n");
+        fprintf(fp,"height,nTime,nBits,bnTarget,bnTargetB,diff,netdiff,solvetime\n");
         height = komodo_nextheight();
         for (i=0; i<height; i++)
         {
             if ( (pindex= komodo_chainactive(i)) != 0 )
             {
                 bnTarget.SetCompact(pindex->nBits,&fNegative,&fOverflow);
+                solvetime = (prevtime==0) ? 0 : (int32_t)(pindex->nTime - prevtime);
                 for (z=0; z<16; z++)
                     sprintf(&str[z<<1],"%02x",((uint8_t *)&bnTarget)[31-z]);
                 str[32] = 0;
-                hash = pindex->GetBlockHash();
+                //hash = pindex->GetBlockHash();
+                memset(&hash,0,sizeof(hash));
+                if ( (pindex->nBits & 3) != 0 )
+                    hash = zawy_ctB(bnTarget,solvetime);
                 for (z=0; z<16; z++)
                     sprintf(&str2[z<<1],"%02x",((uint8_t *)&hash)[31-z]);
-                str2[32] = 0; fprintf(fp,"%d,%u,%08x,%s,%s,%.1f,%.1f,%d\n",i,pindex->nTime,pindex->nBits,str,str2,GetDifficulty(pindex),GetNetworkDifficulty(pindex),prevtime==0?0:(int32_t)(pindex->nTime-prevtime));
+                str2[32] = 0; fprintf(fp,"%d,%u,%08x,%s,%s,%.1f,%.1f,%d\n",i,pindex->nTime,pindex->nBits,str,str2,GetDifficulty(pindex),GetNetworkDifficulty(pindex),solvetime);
                 prevtime = pindex->nTime;
             }
         }