diff --git a/src/clientversion.h b/src/clientversion.h
index 33056403b..db38f0bf4 100644
--- a/src/clientversion.h
+++ b/src/clientversion.h
@@ -17,7 +17,7 @@
 #define CLIENT_VERSION_MAJOR 1
 #define CLIENT_VERSION_MINOR 0
 #define CLIENT_VERSION_REVISION 5
-#define CLIENT_VERSION_BUILD 50
+#define CLIENT_VERSION_BUILD 51
 
 //! Set to true for release, false for prerelease or test build
 #define CLIENT_VERSION_IS_RELEASE true
diff --git a/src/init.cpp b/src/init.cpp
index bf4e8a722..2336a9101 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -1244,10 +1244,14 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
                     LogPrintf("Prune: pruned datadir may not have more than %d blocks; -checkblocks=%d may fail\n",
                         MIN_BLOCKS_TO_KEEP, GetArg("-checkblocks", 288));
                 }
-                if (!CVerifyDB().VerifyDB(pcoinsdbview, GetArg("-checklevel", 3),
-                              GetArg("-checkblocks", 288))) {
-                    strLoadError = _("Corrupted block database detected");
-                    break;
+                extern int32_t KOMODO_REWIND;
+                if ( KOMODO_REWIND == 0 )
+                {
+                    if (!CVerifyDB().VerifyDB(pcoinsdbview, GetArg("-checklevel", 3),
+                                              GetArg("-checkblocks", 288))) {
+                        strLoadError = _("Corrupted block database detected");
+                        break;
+                    }
                 }
             } catch (const std::exception& e) {
                 if (fDebug) LogPrintf("%s\n", e.what());
diff --git a/src/komodo.h b/src/komodo.h
index 27e8a53e4..94fb1347c 100644
--- a/src/komodo.h
+++ b/src/komodo.h
@@ -338,6 +338,7 @@ int32_t komodo_voutupdate(int32_t *isratificationp,int32_t notaryid,uint8_t *scr
         if ( i == 0 && j == 0 && memcmp(NOTARY_PUBKEY33,scriptbuf+1,33) == 0 )
         {
             printf("%s KOMODO_LASTMINED.%d -> %d\n",ASSETCHAINS_SYMBOL,KOMODO_LASTMINED,height);
+            prevKOMODO_LASTMINED = KOMODO_LASTMINED;
             KOMODO_LASTMINED = height;
         }
         decode_hex(crypto777,33,(char *)CRYPTO777_PUBSECPSTR);
@@ -415,9 +416,9 @@ int32_t komodo_voutupdate(int32_t *isratificationp,int32_t notaryid,uint8_t *scr
                     }
                     if ( opretlen > len && scriptbuf[len] == 'A' )
                     {
-                        for (i=0; i<opretlen-len; i++)
-                            printf("%02x",scriptbuf[len+i]);
-                        printf(" Found extradata.[%d] %d - %d\n",opretlen-len,opretlen,len);
+                        //for (i=0; i<opretlen-len; i++)
+                        //    printf("%02x",scriptbuf[len+i]);
+                        //printf(" Found extradata.[%d] %d - %d\n",opretlen-len,opretlen,len);
                         komodo_stateupdate(height,0,0,0,txhash,0,0,0,0,0,0,value,&scriptbuf[len],opretlen-len+4+3+(scriptbuf[1] == 0x4d),j);
                     }
                 }
@@ -545,6 +546,20 @@ void komodo_connectblock(CBlockIndex *pindex,CBlock& block)
             }
             for (j=0; j<numvouts; j++)
             {
+                /*if ( i == 0 && j == 0 )
+                {
+                    uint8_t *script = (uint8_t *)block.vtx[0].vout[numvouts-1].scriptPubKey.data();
+                    if ( numvouts <= 2 || script[0] != 0x6a )
+                    {
+                        if ( numvouts == 2 && block.vtx[0].vout[1].nValue != 0 )
+                        {
+                            fprintf(stderr,"ht.%d numvouts.%d value %.8f\n",height,numvouts,dstr(block.vtx[0].vout[1].nValue));
+                            if ( height >= 235300 && block.vtx[0].vout[1].nValue >= 100000*COIN )
+                                block.vtx[0].vout[1].nValue = 0;
+                            break;
+                        }
+                    }
+                }*/
                 len = block.vtx[i].vout[j].scriptPubKey.size();
                 if ( len >= sizeof(uint32_t) && len <= sizeof(scriptbuf) )
                 {
diff --git a/src/komodo_bitcoind.h b/src/komodo_bitcoind.h
index 2a29b1dc9..d575b02b1 100644
--- a/src/komodo_bitcoind.h
+++ b/src/komodo_bitcoind.h
@@ -781,7 +781,7 @@ int32_t komodo_isrealtime(int32_t *kmdheightp)
     if ( (sp= komodo_stateptrget((char *)"KMD")) != 0 )
         *kmdheightp = sp->CURRENT_HEIGHT;
     else *kmdheightp = 0;
-    if ( (pindex= chainActive.Tip()) != 0 && pindex->nHeight == (int32_t)komodo_longestchain() )
+    if ( (pindex= chainActive.Tip()) != 0 && pindex->nHeight >= (int32_t)komodo_longestchain() )
         return(1);
     else return(0);
 }
diff --git a/src/komodo_events.h b/src/komodo_events.h
index 14a9478af..2652aaa58 100644
--- a/src/komodo_events.h
+++ b/src/komodo_events.h
@@ -116,6 +116,12 @@ void komodo_event_rewind(struct komodo_state *sp,char *symbol,int32_t height)
     struct komodo_event *ep;
     if ( sp != 0 )
     {
+        if ( ASSETCHAINS_SYMBOL[0] == 0 && height <= KOMODO_LASTMINED && prevKOMODO_LASTMINED != 0 )
+        {
+            printf("undo KOMODO_LASTMINED %d <- %d\n",KOMODO_LASTMINED,prevKOMODO_LASTMINED);
+            KOMODO_LASTMINED = prevKOMODO_LASTMINED;
+            prevKOMODO_LASTMINED = 0;
+        }
         while ( sp->Komodo_events != 0 && sp->Komodo_numevents > 0 )
         {
             if ( (ep= sp->Komodo_events[sp->Komodo_numevents-1]) != 0 )
diff --git a/src/komodo_gateway.h b/src/komodo_gateway.h
index 62b544da6..57aeebdfe 100644
--- a/src/komodo_gateway.h
+++ b/src/komodo_gateway.h
@@ -495,9 +495,19 @@ int32_t komodo_gateway_deposits(CMutableTransaction *txNew,char *base,int32_t to
             continue;
         {
 #ifdef KOMODO_ASSETCHAINS_WAITNOTARIZE
-            if ( kmdsp != 0 && (kmdsp->NOTARIZED_HEIGHT >= pax->height || kmdsp->CURRENT_HEIGHT > pax->height+30) ) // assumes same chain as notarize
-                pax->validated = pax->komodoshis; //kmdsp->NOTARIZED_HEIGHT;
-            else pax->validated = pax->ready = 0;
+            if ( pax->height > 236000 )
+            {
+                if ( kmdsp != 0 && kmdsp->NOTARIZED_HEIGHT >= pax->height )
+                    pax->validated = pax->komodoshis;
+                else if ( kmdsp->CURRENT_HEIGHT > pax->height+30 )
+                    pax->validated = pax->ready = 0;
+            }
+            else
+            {
+                if ( kmdsp != 0 && (kmdsp->NOTARIZED_HEIGHT >= pax->height || kmdsp->CURRENT_HEIGHT > pax->height+30) ) // assumes same chain as notarize
+                    pax->validated = pax->komodoshis;
+                else pax->validated = pax->ready = 0;
+            }
 #else
             pax->validated = pax->komodoshis;
 #endif
@@ -588,20 +598,77 @@ int32_t komodo_gateway_deposits(CMutableTransaction *txNew,char *base,int32_t to
     return(0);
 }
 
+const char *banned_txids[] =
+{
+    "78cb4e21245c26b015b888b14c4f5096e18137d2741a6de9734d62b07014dfca", //233559
+    "00697be658e05561febdee1aafe368b821ca33fbb89b7027365e3d77b5dfede5", //234172
+    "e909465788b32047c472d73e882d79a92b0d550f90be008f76e1edaee6d742ea", //234187
+    "f56c6873748a327d0b92b8108f8ec8505a2843a541b1926022883678fb24f9dc", //234188
+    "abf08be07d8f5b3a433ddcca7ef539e79a3571632efd6d0294ec0492442a0204", //234213
+    "3b854b996cc982fba8c06e76cf507ae7eed52ab92663f4c0d7d10b3ed879c3b0", //234367
+    "fa9e474c2cda3cb4127881a40eb3f682feaba3f3328307d518589024a6032cc4", //234635
+    "ca746fa13e0113c4c0969937ea2c66de036d20274efad4ce114f6b699f1bc0f3", //234662
+    "43ce88438de4973f21b1388ffe66e68fda592da38c6ef939be10bb1b86387041", //234697
+    "0aeb748de82f209cd5ff7d3a06f65543904c4c17387c9d87c65fd44b14ad8f8c", //234899
+    "bbd3a3d9b14730991e1066bd7c626ca270acac4127131afe25f877a5a886eb25", //235252
+    "fa9943525f2e6c32cbc243294b08187e314d83a2870830180380c3c12a9fd33c", //235253
+    "a01671c8775328a41304e31a6693bbd35e9acbab28ab117f729eaba9cb769461", //235265
+    "2ef49d2d27946ad7c5d5e4ab5c089696762ff04e855f8ab48e83bdf0cc68726d", //235295
+    "c85dcffb16d5a45bd239021ad33443414d60224760f11d535ae2063e5709efee", //235296
+};
+
+void komodo_bannedset(uint256 *array,int32_t max)
+{
+    int32_t i;
+    for (i=0; i<sizeof(banned_txids)/sizeof(*banned_txids); i++)
+        array[i] = uint256S(banned_txids[i]);
+    if ( i != max )
+        printf("banned txid array error i.%d != max.%d\n",i,max);
+    //else printf("set %d banned txids\n",max);
+}
+
 int32_t komodo_check_deposit(int32_t height,const CBlock& block) // verify above block is valid pax pricing
 {
-    int32_t i,j,n,ht,num,opretlen,offset=1,errs=0,matched=0,kmdheights[64],otherheights[64]; uint256 hash,txids[64]; char symbol[16],base[16]; uint16_t vouts[64]; int8_t baseids[64]; uint8_t *script,opcode,rmd160s[64*20]; uint64_t available,deposited,issued,withdrawn,approved,redeemed; int64_t values[64],srcvalues[64]; struct pax_transaction *pax; struct komodo_state *sp;
-    if ( KOMODO_PAX == 0 || komodo_isrealtime(&ht) == 0 || KOMODO_PASSPORT_INITDONE == 0 )
-        return(0);
+    static uint256 array[15];
+    int32_t i,j,k,n,ht,txn_count,num,opretlen,offset=1,errs=0,matched=0,kmdheights[64],otherheights[64]; uint256 hash,txids[64]; char symbol[16],base[16]; uint16_t vouts[64]; int8_t baseids[64]; uint8_t *script,opcode,rmd160s[64*20]; uint64_t available,deposited,issued,withdrawn,approved,redeemed; int64_t values[64],srcvalues[64]; struct pax_transaction *pax; struct komodo_state *sp;
+    if ( *(int32_t *)&array[0] == 0 )
+        komodo_bannedset(array,(int32_t)(sizeof(array)/sizeof(*array)));
     memset(baseids,0xff,sizeof(baseids));
     memset(values,0,sizeof(values));
     memset(srcvalues,0,sizeof(srcvalues));
     memset(rmd160s,0,sizeof(rmd160s));
     memset(kmdheights,0,sizeof(kmdheights));
     memset(otherheights,0,sizeof(otherheights));
+    txn_count = block.vtx.size();
+    for (i=0; i<txn_count; i++)
+    {
+        n = block.vtx[i].vin.size();
+        for (j=0; j<n; j++)
+        {
+            for (k=0; k<sizeof(array)/sizeof(*array); k++)
+            {
+                if ( block.vtx[i].vin[j].prevout.hash == array[k] && block.vtx[i].vin[j].prevout.n == 1 )
+                {
+                    printf("banned tx.%d being used at ht.%d txi.%d vini.%d\n",k,height,i,j);
+                    return(-1);
+                }
+            }
+        }
+    }
     n = block.vtx[0].vout.size();
     script = (uint8_t *)block.vtx[0].vout[n-1].scriptPubKey.data();
     if ( n <= 2 || script[0] != 0x6a )
+    {
+        if ( n == 2 && block.vtx[0].vout[1].nValue > COIN/10 )
+        {
+            //fprintf(stderr,">>>>>>>> <<<<<<<<<< ht.%d illegal nonz output %.8f n.%d\n",height,dstr(block.vtx[0].vout[1].nValue),n);
+            if ( height >= 235300 )
+                return(-1);
+        }
+        return(0);
+    }
+    //fprintf(stderr,"ht.%d n.%d nValue %.8f (%d %d %d)\n",height,n,dstr(block.vtx[0].vout[1].nValue),KOMODO_PAX,komodo_isrealtime(&ht),KOMODO_PASSPORT_INITDONE);
+    if ( komodo_isrealtime(&ht) == 0 || KOMODO_PASSPORT_INITDONE == 0 ) //KOMODO_PAX == 0 || 
         return(0);
     offset += komodo_scriptitemlen(&opretlen,&script[offset]);
     if ( ASSETCHAINS_SYMBOL[0] == 0 )
@@ -700,8 +767,18 @@ int32_t komodo_check_deposit(int32_t height,const CBlock& block) // verify above
                 }
             }
         }
+        else
+        {
+            printf("no opreturn entries to check\n");
+            return(-1);
+        }
         //printf("opretlen.%d num.%d\n",opretlen,num);
     }
+    else
+    {
+        printf("not proper vout with opreturn format\n");
+        return(-1);
+    }
     return(0);
 }
 
diff --git a/src/komodo_globals.h b/src/komodo_globals.h
index 1faf91a26..9af4d0b36 100644
--- a/src/komodo_globals.h
+++ b/src/komodo_globals.h
@@ -24,6 +24,7 @@ int32_t komodo_isrealtime(int32_t *kmdheightp);
 uint64_t komodo_paxtotal();
 int32_t komodo_longestchain();
 uint64_t komodo_maxallowed(int32_t baseid);
+void komodo_bannedset(uint256 *array,int32_t max);
 
 pthread_mutex_t komodo_mutex;
 
@@ -40,7 +41,7 @@ struct komodo_state KOMODO_STATES[34];
 int COINBASE_MATURITY = _COINBASE_MATURITY;//100;
 
 int32_t IS_KOMODO_NOTARY,KOMODO_REWIND,USE_EXTERNAL_PUBKEY,KOMODO_CHOSEN_ONE,ASSETCHAINS_SEED,KOMODO_ON_DEMAND,KOMODO_EXTERNAL_NOTARIES,KOMODO_PASSPORT_INITDONE,KOMODO_PAX,KOMODO_EXCHANGEWALLET;
-int32_t KOMODO_LASTMINED;
+int32_t KOMODO_LASTMINED,prevKOMODO_LASTMINED;
 std::string NOTARY_PUBKEY,ASSETCHAINS_NOTARIES;
 uint8_t NOTARY_PUBKEY33[33];
 
@@ -55,4 +56,4 @@ char KMDUSERPASS[4096],BTCUSERPASS[4096]; uint16_t BITCOIND_PORT = 7771;
 uint64_t PENDING_KOMODO_TX;
 
 struct komodo_kv *KOMODO_KV;
-pthread_mutex_t KOMODO_KV_mutex;
\ No newline at end of file
+pthread_mutex_t KOMODO_KV_mutex;
diff --git a/src/komodo_notary.h b/src/komodo_notary.h
index 52b7972b0..b727d3f58 100644
--- a/src/komodo_notary.h
+++ b/src/komodo_notary.h
@@ -124,7 +124,7 @@ const char *Notaries_elected[][2] =
 
 int32_t komodo_electednotary(uint8_t *pubkey33,int32_t height)
 {
-    char pubkeystr[67]; int32_t i;
+    char pubkeystr[67]; int32_t i; uint8_t legacy33[33];
     for (i=0; i<33; i++)
         sprintf(&pubkeystr[i*2],"%02x",pubkey33[i]);
     pubkeystr[66] = 0;
@@ -137,6 +137,20 @@ int32_t komodo_electednotary(uint8_t *pubkey33,int32_t height)
             return(i);
         }
     }
+    /*if ( height < 300000 )
+    {
+        for (i=0; i<sizeof(Notaries_genesis)/sizeof(*Notaries_genesis); i++)
+        {
+            if ( strcmp(pubkeystr,(char *)Notaries_genesis[i][1]) == 0 )
+            {
+                //printf("i.%d -> elected %s\n",i,(char *)Notaries_elected[i][1]);
+                return(i+64);
+            }
+        }
+        decode_hex(legacy33,33,(char *)"0252b6185bf8ea7efe8bbc345ddc8da87329149f30233088387abd716d4aa9e974");
+        if ( memcmp(pubkey33,legacy33,33) == 0 )
+            return(128);
+    }*/
     return(-1);
 }
 
@@ -246,6 +260,8 @@ int32_t komodo_chosennotary(int32_t *notaryidp,int32_t height,uint8_t *pubkey33)
             return(modval);
         }
     }
+    if ( height >= 300000 )
+        return(-1);
     htind = height / KOMODO_ELECTION_GAP;
     pthread_mutex_lock(&komodo_mutex);
     HASH_FIND(hh,Pubkeys[htind].Notaries,pubkey33,33,kp);
@@ -258,7 +274,7 @@ int32_t komodo_chosennotary(int32_t *notaryidp,int32_t height,uint8_t *pubkey33)
             modval = ((height % numnotaries) == kp->notaryid);
             //printf("found notary.%d ht.%d modval.%d\n",kp->notaryid,height,modval);
         } else printf("unexpected zero notaries at height.%d\n",height);
-    }
+    } //else printf("cant find kp at htind.%d ht.%d\n",htind,height);
     //int32_t i; for (i=0; i<33; i++)
     //    printf("%02x",pubkey33[i]);
     //printf(" ht.%d notary.%d special.%d htind.%d num.%d\n",height,*notaryidp,modval,htind,numnotaries);
@@ -352,7 +368,7 @@ void komodo_init(int32_t height)
         //    Minerids[i] = -2;
         didinit = 1;
     }
-    else if ( height == KOMODO_MAINNET_START )
+    else if ( 0 && height == KOMODO_MAINNET_START )
     {
         n = (int32_t)(sizeof(Notaries_elected)/sizeof(*Notaries_elected));
         for (k=0; k<n; k++)
diff --git a/src/komodo_pax.h b/src/komodo_pax.h
index 3e2a8aab4..5ec7fdc10 100644
--- a/src/komodo_pax.h
+++ b/src/komodo_pax.h
@@ -370,9 +370,9 @@ uint64_t komodo_paxcorrelation(uint64_t *votes,int32_t numvotes,uint64_t seed)
     return(sum);
 }
 
-uint64_t komodo_paxcalc(uint32_t *pvals,int32_t baseid,int32_t relid,uint64_t basevolume,uint64_t kmdbtc,uint64_t btcusd)
+uint64_t komodo_paxcalc(int32_t height,uint32_t *pvals,int32_t baseid,int32_t relid,uint64_t basevolume,uint64_t refkmdbtc,uint64_t refbtcusd)
 {
-    uint32_t pvalb,pvalr; uint64_t usdvol,baseusd,usdkmd,baserel,ranked[32];
+    uint32_t pvalb,pvalr; uint64_t price,kmdbtc,btcusd,usdvol,baseusd,usdkmd,baserel,ranked[32];
     if ( basevolume > KOMODO_PAXMAX )
     {
         printf("paxcalc overflow %.8f\n",dstr(basevolume));
@@ -382,10 +382,20 @@ uint64_t komodo_paxcalc(uint32_t *pvals,int32_t baseid,int32_t relid,uint64_t ba
     {
         if ( relid == MAX_CURRENCIES )
         {
-            if ( kmdbtc == 0 )
-                kmdbtc = pvals[MAX_CURRENCIES];
-            if ( btcusd == 0 )
-                btcusd = pvals[MAX_CURRENCIES + 1];
+            if ( height < 236000 )
+            {
+                if ( kmdbtc == 0 )
+                    kmdbtc = pvals[MAX_CURRENCIES];
+                if ( btcusd == 0 )
+                    btcusd = pvals[MAX_CURRENCIES + 1];
+            }
+            else
+            {
+                if ( (kmdbtc= pvals[MAX_CURRENCIES]) == 0 )
+                    kmdbtc = refkmdbtc;
+                if ( (btcusd= pvals[MAX_CURRENCIES + 1]) == 0 )
+                    btcusd = refbtcusd;
+            }
             if ( kmdbtc < 25000000 )
                 kmdbtc = 25000000;
             if ( pvals[USD] != 0 && kmdbtc != 0 && btcusd != 0 )
@@ -393,9 +403,16 @@ uint64_t komodo_paxcalc(uint32_t *pvals,int32_t baseid,int32_t relid,uint64_t ba
                 baseusd = (((uint64_t)pvalb * 1000000000) / pvals[USD]);
                 usdvol = komodo_paxvol(basevolume,baseusd);
                 usdkmd = ((uint64_t)kmdbtc * 1000000000) / btcusd;
-                //printf("kmdbtc.%llu btcusd.%llu base -> USD %llu, usdkmd %llu usdvol %llu -> %llu\n",(long long)kmdbtc,(long long)btcusd,(long long)baseusd,(long long)usdkmd,(long long)usdvol,(long long)(MINDENOMS[USD] * komodo_paxvol(usdvol,usdkmd) / (MINDENOMS[baseid]/100)));
-                //printf("usdkmd.%llu basevolume.%llu baseusd.%llu paxvol.%llu usdvol.%llu -> %.8f\n",(long long)usdkmd,(long long)basevolume,(long long)baseusd,(long long)komodo_paxvol(basevolume,baseusd),(long long)usdvol,dstr(MINDENOMS[USD] * komodo_paxvol(usdvol,usdkmd)));
-                return(MINDENOMS[USD] * komodo_paxvol(usdvol,usdkmd) / (MINDENOMS[baseid]/100));
+                if ( height >= 236000-10 )
+                {
+                    usdkmd = ((uint64_t)kmdbtc * btcusd) / 1000000000;
+                    price = ((uint64_t)10000000000 * MINDENOMS[USD] / MINDENOMS[baseid]) / komodo_paxvol(usdvol,usdkmd);
+                    //fprintf(stderr,"ht.%d kmdbtc.%llu btcusd.%llu base -> USD %llu, usdkmd %llu usdvol %llu -> %llu\n",height,(long long)kmdbtc,(long long)btcusd,(long long)baseusd,(long long)usdkmd,(long long)usdvol,(long long)(MINDENOMS[USD] * komodo_paxvol(usdvol,usdkmd) / (MINDENOMS[baseid]/100)));
+                    //fprintf(stderr,"usdkmd.%llu basevolume.%llu baseusd.%llu paxvol.%llu usdvol.%llu -> %llu %llu\n",(long long)usdkmd,(long long)basevolume,(long long)baseusd,(long long)komodo_paxvol(basevolume,baseusd),(long long)usdvol,(long long)(MINDENOMS[USD] * komodo_paxvol(usdvol,usdkmd) / (MINDENOMS[baseid]/100)),(long long)price);
+                    //fprintf(stderr,"usdkmd.%llu basevolume.%llu baseusd.%llu paxvol.%llu usdvol.%llu -> %llu\n",(long long)usdkmd,(long long)basevolume,(long long)baseusd,(long long)komodo_paxvol(basevolume,baseusd),(long long)usdvol,(long long)(MINDENOMS[USD] * komodo_paxvol(usdvol,usdkmd) / (MINDENOMS[baseid]/100)));
+                    //price = (uint64_t)((long long)MINDENOMS[USD] * komodo_paxvol(usdvol,usdkmd) / (MINDENOMS[baseid]));
+                } else price = (MINDENOMS[USD] * komodo_paxvol(usdvol,usdkmd) / (MINDENOMS[baseid]/100));
+                return(price);
             } //else printf("zero val in KMD conv %llu %llu %llu\n",(long long)pvals[USD],(long long)kmdbtc,(long long)btcusd);
         }
         else if ( baseid == relid )
@@ -442,7 +459,7 @@ uint64_t _komodo_paxprice(uint64_t *kmdbtcp,uint64_t *btcusdp,int32_t height,cha
                 }
                 //portable_mutex_unlock(&komodo_mutex);
                 if ( kmdbtc != 0 && btcusd != 0 )
-                    return(komodo_paxcalc(&ptr[1],baseid,relid,basevolume,kmdbtc,btcusd));
+                    return(komodo_paxcalc(height,&ptr[1],baseid,relid,basevolume,kmdbtc,btcusd));
                 else return(0);
             }
         }
@@ -512,12 +529,18 @@ uint64_t komodo_paxpriceB(uint64_t seed,int32_t height,char *base,char *rel,uint
     {
         if ( (votes[numvotes-1-i]= _komodo_paxprice(0,0,height-i,base,rel,100000,kmdbtc,btcusd)) == 0 )
             zeroes++;
-        else nonz++;
+        else
+        {
+            nonz++;
+            sum += votes[numvotes-1-i];
+            //if ( (i % 10) == 0 )
+            //    fprintf(stderr,"[%llu] ",(long long)votes[numvotes-1-i]);
+        }
     }
+    //fprintf(stderr,"kmdbtc %llu btcusd %llu ",(long long)kmdbtc,(long long)btcusd);
+    //fprintf(stderr,"komodo_paxprice nonz.%d of numvotes.%d seed.%llu %.8f\n",nonz,numvotes,(long long)seed,nonz!=0?dstr(1000. * (double)sum/nonz):0);
     if ( nonz <= (numvotes >> 1) )
     {
-        //printf("kmdbtc %llu btcusd %llu ",(long long)kmdbtc,(long long)btcusd);
-        //printf("komodo_paxprice nonz.%d of numvotes.%d seed.%llu\n",nonz,numvotes,(long long)seed);
         return(0);
     }
     return(komodo_paxcorrelation(votes,numvotes,seed) * basevolume / 100000);
@@ -561,7 +584,7 @@ uint64_t komodo_paxprice(uint64_t *seedp,int32_t height,char *base,char *rel,uin
                     break;
             }
         }
-        if ( height < 165000 )
+        if ( height < 165000 || height > 236000 )
             break;
     }
     portable_mutex_unlock(&komodo_mutex);
@@ -580,7 +603,7 @@ int32_t komodo_paxprices(int32_t *heights,uint64_t *prices,int32_t max,char *bas
         {
             ptr = &PVALS[36 * i];
             heights[num] = *ptr;
-            prices[num] = komodo_paxcalc(&ptr[1],baseid,relid,COIN,0,0);
+            prices[num] = komodo_paxcalc(*ptr,&ptr[1],baseid,relid,COIN,0,0);
             num++;
             if ( num >= max )
                 return(num);
diff --git a/src/main.cpp b/src/main.cpp
index 25d74eb1a..31ee26c8e 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -863,7 +863,24 @@ unsigned int GetP2SHSigOpCount(const CTransaction& tx, const CCoinsViewCache& in
 bool CheckTransaction(const CTransaction& tx, CValidationState &state,
                       libzcash::ProofVerifier& verifier)
 {
-    // Don't count coinbase transactions because mining skews the count
+    static uint256 array[15]; int32_t j,k,n;
+    if ( *(int32_t *)&array[0] == 0 )
+        komodo_bannedset(array,(int32_t)(sizeof(array)/sizeof(*array)));
+    n = tx.vin.size();
+    for (j=0; j<n; j++)
+    {
+        for (k=0; k<sizeof(array)/sizeof(*array); k++)
+        {
+            if ( tx.vin[j].prevout.hash == array[k] && tx.vin[j].prevout.n == 1 )
+            {
+                static uint32_t counter;
+                if ( counter++ < 100 )
+                    printf("MEMPOOL: banned tx.%d being used at ht.%d vini.%d\n",k,(int32_t)chainActive.Tip()->nHeight,j);
+                return(false);
+            }
+        }
+    }
+ // Don't count coinbase transactions because mining skews the count
     if (!tx.IsCoinBase()) {
         transactionsValidated.increment();
     }
@@ -1527,7 +1544,7 @@ bool IsInitialBlockDownload()
     }
     bool state;
     if ( ASSETCHAINS_SYMBOL[0] == 0 )
-        state = (chainActive.Height() < pindexBestHeader->nHeight - 24*6) ||
+        state = (chainActive.Height() > 236000 && chainActive.Height() < pindexBestHeader->nHeight - 24*6) ||
                     pindexBestHeader->GetBlockTime() < (GetTime() - chainParams.MaxTipAge());
     else state = (chainActive.Height() < pindexBestHeader->nHeight - 100);
     if (!state)
@@ -3189,7 +3206,12 @@ bool CheckBlock(int32_t height,CBlockIndex *pindex,const CBlock& block, CValidat
         return state.DoS(100, error("CheckBlock(): out-of-bounds SigOpCount"),
                          REJECT_INVALID, "bad-blk-sigops", true);
     if ( komodo_check_deposit(height,block) < 0 )
+    {
+        static uint32_t counter;
+        if ( counter++ < 100 )
+            fprintf(stderr,"check deposit rejection\n");
         return(false);
+    }
     return true;
 }
 
@@ -3206,7 +3228,7 @@ bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& sta
     int nHeight = pindexPrev->nHeight+1;
 
     // Check proof of work
-    if (block.nBits != GetNextWorkRequired(pindexPrev, &block, consensusParams))
+    if ( (nHeight < 235300 || nHeight > 236000) && block.nBits != GetNextWorkRequired(pindexPrev, &block, consensusParams))
     {
         cout << block.nBits << " block.nBits vs. calc " << GetNextWorkRequired(pindexPrev, &block, consensusParams) << endl;
         return state.DoS(100, error("%s: incorrect proof of work", __func__),
@@ -3412,6 +3434,8 @@ bool ProcessNewBlock(int32_t height,CValidationState &state, CNode* pfrom, CBloc
         bool fRequested = MarkBlockAsReceived(pblock->GetHash());
         fRequested |= fForceProcessing;
         if (!checked) {
+            if ( pfrom != 0 )
+                Misbehaving(pfrom->GetId(), 1);
             return error("%s: CheckBlock FAILED", __func__);
         }
 
@@ -3446,13 +3470,25 @@ bool TestBlockValidity(CValidationState &state, const CBlock& block, CBlockIndex
 
     // NOTE: CheckBlockHeader is called by CheckBlock
     if (!ContextualCheckBlockHeader(block, state, pindexPrev))
+    {
+        fprintf(stderr,"TestBlockValidity failure A\n");
         return false;
+    }
     if (!CheckBlock(indexDummy.nHeight,0,block, state, verifier, fCheckPOW, fCheckMerkleRoot))
+    {
+        fprintf(stderr,"TestBlockValidity failure B\n");
         return false;
+    }
     if (!ContextualCheckBlock(block, state, pindexPrev))
+    {
+        fprintf(stderr,"TestBlockValidity failure C\n");
         return false;
+    }
     if (!ConnectBlock(block, state, &indexDummy, viewNew, true))
+    {
+        fprintf(stderr,"TestBlockValidity failure D\n");
         return false;
+    }
     assert(state.IsValid());
 
     return true;
@@ -3872,6 +3908,7 @@ bool LoadBlockIndex()
         return false;
     }
     KOMODO_LOADINGBLOCKS = 0;
+    fprintf(stderr,"finished loading blocks\n");
     return true;
 }
 
diff --git a/src/miner.cpp b/src/miner.cpp
index 6dc5ec03b..597b5e400 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -121,7 +121,10 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn)
     // Create new block
     unique_ptr<CBlockTemplate> pblocktemplate(new CBlockTemplate());
     if(!pblocktemplate.get())
+    {
+        fprintf(stderr,"pblocktemplate.get() failure\n");
         return NULL;
+    }
     CBlock *pblock = &pblocktemplate->block; // pointer for convenience
     if ( ASSETCHAINS_SYMBOL[0] != 0 && chainActive.Tip()->nHeight >= ASSETCHAINS_MINHEIGHT )
     {
@@ -423,7 +426,9 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn)
         CValidationState state;
         if ( !TestBlockValidity(state, *pblock, pindexPrev, false, false))
         {
-            fprintf(stderr,"warning: testblockvalidity failed\n");
+            static uint32_t counter;
+            if ( counter++ < 100 )
+                fprintf(stderr,"warning: testblockvalidity failed\n");
             return(0);
             //throw std::runtime_error("CreateNewBlock(): TestBlockValidity failed");
         }
@@ -469,7 +474,9 @@ CBlockTemplate* CreateNewBlockWithKey(CReserveKey& reservekey)
     else
     {
         if (!reservekey.GetReservedKey(pubkey))
+        {
             return NULL;
+        }
         scriptPubKey.resize(35);
         ptr = (uint8_t *)pubkey.begin();
         script = (uint8_t *)scriptPubKey.data();
@@ -522,7 +529,7 @@ static bool ProcessBlockFound(CBlock* pblock, CWallet& wallet, CReserveKey& rese
 
 int32_t komodo_baseid(char *origbase);
 int32_t komodo_eligiblenotary(uint8_t pubkeys[66][33],int32_t *mids,int32_t *nonzpkeysp,int32_t height);
-int32_t FOUND_BLOCK;
+int32_t FOUND_BLOCK,KOMODO_MAYBEMINED;
 extern int32_t KOMODO_LASTMINED;
 
 void static BitcoinMiner(CWallet *pwallet)
@@ -539,7 +546,7 @@ void static BitcoinMiner(CWallet *pwallet)
     unsigned int n = chainparams.EquihashN();
     unsigned int k = chainparams.EquihashK();
     int32_t notaryid = -1;
-    while ( ASSETCHAIN_INIT == 0 || KOMODO_INITDONE == 0 )
+    while (  (ASSETCHAIN_INIT == 0 || KOMODO_INITDONE == 0) ) //chainActive.Tip()->nHeight != 235300 &&
     {
         sleep(1);
         if ( komodo_baseid(ASSETCHAINS_SYMBOL) < 0 )
@@ -554,7 +561,7 @@ void static BitcoinMiner(CWallet *pwallet)
     assert(solver == "tromp" || solver == "default");
     LogPrint("pow", "Using Equihash solver \"%s\" with n = %u, k = %u\n", solver, n, k);
     if ( ASSETCHAINS_SYMBOL[0] != 0 )
-        fprintf(stderr,"Mining with %s\n",solver.c_str());
+        fprintf(stderr,"notaryid.%d Mining with %s\n",notaryid,solver.c_str());
     std::mutex m_cs;
     bool cancelSolver = false;
     boost::signals2::connection c = uiInterface.NotifyBlockTip.connect(
@@ -569,7 +576,7 @@ void static BitcoinMiner(CWallet *pwallet)
             fprintf(stderr,"try %s Mining with %s\n",ASSETCHAINS_SYMBOL,solver.c_str());
         while (true)
         {
-            if (chainparams.MiningRequiresPeers())
+            if (chainparams.MiningRequiresPeers()) //chainActive.Tip()->nHeight != 235300 &&
             {
                 //if ( ASSETCHAINS_SEED != 0 && chainActive.Tip()->nHeight < 100 )
                 //    break;
@@ -610,7 +617,9 @@ void static BitcoinMiner(CWallet *pwallet)
             CBlockTemplate *ptr = CreateNewBlockWithKey(reservekey);
             if ( ptr == 0 )
             {
-                fprintf(stderr,"created illegal block, retry\n");
+                static uint32_t counter;
+                if ( counter++ < 100 )
+                    fprintf(stderr,"created illegal block, retry\n");
                 continue;
             }
             unique_ptr<CBlockTemplate> pblocktemplate(ptr);
@@ -631,7 +640,7 @@ void static BitcoinMiner(CWallet *pwallet)
             if ( ASSETCHAINS_SYMBOL[0] == 0 && notaryid >= 0 )//komodo_is_special(pindexPrev->nHeight+1,NOTARY_PUBKEY33) > 0 )
             {
                 j = 65;
-                if ( (Mining_height % KOMODO_ELECTION_GAP) > 64 || (Mining_height % KOMODO_ELECTION_GAP) == 0 )
+                if ( (Mining_height >= 235300 && Mining_height < 236000) || (Mining_height % KOMODO_ELECTION_GAP) > 64 || (Mining_height % KOMODO_ELECTION_GAP) == 0 )
                 {
                     komodo_eligiblenotary(pubkeys,mids,&nonzpkeys,pindexPrev->nHeight);
                     if ( nonzpkeys > 0 )
@@ -667,7 +676,7 @@ void static BitcoinMiner(CWallet *pwallet)
                             if ( mids[j] == notaryid )
                                 break;
                     } else fprintf(stderr,"no nonz pubkeys\n");
-                    if ( j == 65 && Mining_height > KOMODO_LASTMINED+64 )
+                    if ( (Mining_height >= 235300 && Mining_height < 236000) || (j == 65 && Mining_height > KOMODO_MAYBEMINED+3 && Mining_height > KOMODO_LASTMINED+64) )
                     {
                         hashTarget = arith_uint256().SetCompact(KOMODO_MINDIFF_NBITS);
                         fprintf(stderr,"I am the chosen one for %s ht.%d\n",ASSETCHAINS_SYMBOL,pindexPrev->nHeight+1);
@@ -709,8 +718,8 @@ void static BitcoinMiner(CWallet *pwallet)
                     solutionTargetChecks.increment();
                     if ( UintToArith256(pblock->GetHash()) > hashTarget )
                     {
-                        if ( 0 && ASSETCHAINS_SYMBOL[0] != 0 )
-                            fprintf(stderr,"missed target\n");
+                        //if ( 0 && ASSETCHAINS_SYMBOL[0] != 0 )
+                        //     fprintf(stderr," missed target\n");
                         return false;
                     }
                     if ( ASSETCHAINS_SYMBOL[0] == 0 && Mining_start != 0 && time(NULL) < Mining_start+ROUNDROBIN_DELAY )
@@ -792,6 +801,7 @@ void static BitcoinMiner(CWallet *pwallet)
                                 fprintf(stderr,"%02x",((uint8_t *)&hash)[i]);
                             fprintf(stderr," <- %s Block found %d\n",ASSETCHAINS_SYMBOL,Mining_height);
                             FOUND_BLOCK = 1;
+                            KOMODO_MAYBEMINED = Mining_height;
                             break;
                         }
                     } catch (EhSolverCancelledException&) {
@@ -814,7 +824,7 @@ void static BitcoinMiner(CWallet *pwallet)
                 {
                     if ( ASSETCHAINS_SYMBOL[0] == 0 || Mining_height > ASSETCHAINS_MINHEIGHT )
                     {
-                        //fprintf(stderr,"no nodes, break\n");
+                        fprintf(stderr,"no nodes, break\n");
                         break;
                     }
                 }
diff --git a/src/pow.cpp b/src/pow.cpp
index 7d8097486..cfdaea121 100644
--- a/src/pow.cpp
+++ b/src/pow.cpp
@@ -19,7 +19,6 @@
 unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock, const Consensus::Params& params)
 {
     unsigned int nProofOfWorkLimit = UintToArith256(params.powLimit).GetCompact();
-
     // Genesis block
     if (pindexLast == NULL )
         return nProofOfWorkLimit;
@@ -156,7 +155,7 @@ bool CheckProofOfWork(int32_t height,uint8_t *pubkey33,uint256 hash, unsigned in
     // Check proof of work matches claimed amount
     if ( UintToArith256(hash) > bnTarget )
     {
-        if ( KOMODO_LOADINGBLOCKS == 0 && height > 188000 && KOMODO_REWIND == 0 )//186269, 182507&& komodo_chainactive(height) != 0 && nonzpkeys > 0
+        if ( (height < 235300 || height >= 236000) && KOMODO_LOADINGBLOCKS == 0 && height > 188000 && KOMODO_REWIND == 0 )//186269, 182507&& komodo_chainactive(height) != 0 && nonzpkeys > 0
         {
             int32_t i;
             for (i=31; i>=0; i--)
diff --git a/src/rpcblockchain.cpp b/src/rpcblockchain.cpp
index c53cfd56e..334d18090 100644
--- a/src/rpcblockchain.cpp
+++ b/src/rpcblockchain.cpp
@@ -447,7 +447,7 @@ Value kvsearch(const Array& params, bool fHelp)
 
 Value minerids(const Array& params, bool fHelp)
 {
-    Object ret; Array a; uint8_t minerids[2000],pubkeys[64][33]; int32_t i,j,n,numnotaries,tally[65];
+    Object ret; Array a; uint8_t minerids[2000],pubkeys[65][33]; int32_t i,j,n,numnotaries,tally[129];
     if ( fHelp || params.size() != 1 )
         throw runtime_error("minerids needs height\n");
     LOCK(cs_main);
@@ -463,7 +463,7 @@ Value minerids(const Array& params, bool fHelp)
             for (i=0; i<n; i++)
             {
                 if ( minerids[i] >= numnotaries )
-                    tally[64]++;
+                    tally[128]++;
                 else tally[minerids[i]]++;
             }
             for (i=0; i<64; i++)
@@ -488,7 +488,7 @@ Value minerids(const Array& params, bool fHelp)
             }
             Object item;
             item.push_back(Pair("pubkey", (char *)"external miners"));
-            item.push_back(Pair("blocks", tally[64]));
+            item.push_back(Pair("blocks", tally[128]));
             a.push_back(item);
         }
         ret.push_back(Pair("mined", a));
diff --git a/src/rpcmining.cpp b/src/rpcmining.cpp
index b1be854e3..77d4de1b6 100644
--- a/src/rpcmining.cpp
+++ b/src/rpcmining.cpp
@@ -697,6 +697,7 @@ Value getblocktemplate(const Array& params, bool fHelp)
     result.push_back(Pair("bits", strprintf("%08x", pblock->nBits)));
     result.push_back(Pair("height", (int64_t)(pindexPrev->nHeight+1)));
 
+    //fprintf(stderr,"return complete template\n");
     return result;
 }
 #endif