diff --git a/iguana/iguana777.c b/iguana/iguana777.c
index dc65d875f..050f9a535 100755
--- a/iguana/iguana777.c
+++ b/iguana/iguana777.c
@@ -15,7 +15,7 @@
 
 
 #include "iguana777.h"
-const char *Hardcoded_coins[][3] = { { "BTC", "bitcoin", "0" }, { "BTCD", "BitcoinDark", "129" },  { "VPN", "VPNcoin", "129" }, { "LTC", "litecoin", "129" } };
+const char *Hardcoded_coins[][3] = { { "BTC", "bitcoin", "0" }, { "BTCD", "BitcoinDark", "129" },  { "VPN", "VPNcoin", "129" }, { "LTC", "litecoin", "129" } , { "endmarker", "", "" } };
 
 struct iguana_info *iguana_coinfind(const char *symbol)
 {
@@ -28,7 +28,7 @@ struct iguana_info *iguana_coinfind(const char *symbol)
     return(0);
 }
 
-struct iguana_info *iguana_coinadd(const char *symbol)
+struct iguana_info *iguana_coinadd(const char *symbol,cJSON *argjson)
 {
     struct iguana_info *coin; int32_t i = 0;
     if ( symbol == 0 )
@@ -41,7 +41,6 @@ struct iguana_info *iguana_coinadd(const char *symbol)
             if ( Coins[i] == 0 )
             {
                 Coins[i] = mycalloc('c',1,sizeof(*Coins[i]));
-                //memset(Coins[i],0,sizeof(*Coins[i]));
                 printf("iguana_coin.(new) -> %p\n",Coins[i]);
                 return(Coins[i]);
             } return(0);
@@ -52,20 +51,29 @@ struct iguana_info *iguana_coinadd(const char *symbol)
     {
         for (i=0; i<sizeof(Coins)/sizeof(*Coins); i++)
         {
-            if ( i >= sizeof(Hardcoded_coins)/sizeof(*Hardcoded_coins) || Hardcoded_coins[i][0] == 0 )
+            if ( i >= sizeof(Hardcoded_coins)/sizeof(*Hardcoded_coins) )
                 break;
-            if ( strcmp(symbol,Hardcoded_coins[i][0]) == 0 )
+            //printf("Hardcoded_coins[i][0] %s vs.(%s)\n",Hardcoded_coins[i][0],symbol);
+            //if ( symbol[0] == 0 )
+            //    getchar();
+            if ( strcmp("endmarker",Hardcoded_coins[i][0]) == 0 || strcmp(symbol,Hardcoded_coins[i][0]) == 0 )
             {
                 if ( Coins[i] == 0 )
                     Coins[i] = mycalloc('c',1,sizeof(*Coins[i]));
                 coin = Coins[i];
                 if ( coin->chain == 0 )
                 {
-                    strcpy(coin->name,Hardcoded_coins[i][1]);
-                    //coin->myservices = atoi(Hardcoded_coins[i][2]);
+                    if ( i < sizeof(Hardcoded_coins)/sizeof(*Hardcoded_coins) )
+                        strcpy(coin->name,Hardcoded_coins[i][1]);
+                    else if (argjson != 0 )
+                    {
+                        if ( jstr(argjson,"name") != 0 )
+                            safecopy(coin->name,jstr(argjson,"name"),sizeof(coin->name));
+                        else strcpy(coin->name,symbol);
+                    }
+                    coin->chain = iguana_chainfind((char *)symbol,argjson,1);
+                    iguana_initcoin(coin,argjson);
                     strcpy(coin->symbol,symbol);
-                    coin->chain = iguana_chainfind(coin->symbol);
-                    iguana_initcoin(coin);
                 }
                 return(coin);
             }
@@ -443,7 +451,7 @@ struct iguana_info *iguana_setcoin(char *symbol,void *launched,int32_t maxpeers,
     struct iguana_chain *iguana_createchain(cJSON *json);
     struct iguana_info *coin; int32_t j,m,mapflags; char dirname[512]; cJSON *peers;
     mapflags = IGUANA_MAPRECVDATA | maphash*IGUANA_MAPTXIDITEMS | maphash*IGUANA_MAPPKITEMS | maphash*IGUANA_MAPBLOCKITEMS | maphash*IGUANA_MAPPEERITEMS;
-    coin = iguana_coinadd(symbol);
+    coin = iguana_coinadd(symbol,json);
     coin->launched = launched;
     if ( (coin->MAXPEERS= maxpeers) <= 0 )
         coin->MAXPEERS = (strcmp(symbol,"BTC") == 0) ? 64 : 32;
@@ -493,7 +501,7 @@ int32_t iguana_launchcoin(char *symbol,cJSON *json)
     int64_t maxrecvcache; uint64_t services; struct iguana_info **coins,*coin;
     if ( symbol == 0 )
         return(-1);
-    if ( (coin= iguana_coinadd(symbol)) == 0 )
+    if ( (coin= iguana_coinadd(symbol,json)) == 0 )
         return(-1);
     if ( coin->launched == 0 )
     {
@@ -502,7 +510,7 @@ int32_t iguana_launchcoin(char *symbol,cJSON *json)
         else maphash = 0;
         iguana_coinargs(symbol,&maxrecvcache,&minconfirms,&maxpeers,&initialheight,&services,&maxpending,&maxbundles,json);
         coins = mycalloc('A',1+1,sizeof(*coins));
-        if ( (coin= iguana_setcoin(coin->symbol,coins,maxpeers,maxrecvcache,services,initialheight,maphash,minconfirms,maxpending,maxbundles,json)) != 0 )
+        if ( (coin= iguana_setcoin(symbol,coins,maxpeers,maxrecvcache,services,initialheight,maphash,minconfirms,maxpending,maxbundles,json)) != 0 )
         {
             coins[0] = (void *)((long)1);
             coins[1] = coin;
diff --git a/iguana/iguana777.h b/iguana/iguana777.h
index 7268f41e2..3ae3c8710 100755
--- a/iguana/iguana777.h
+++ b/iguana/iguana777.h
@@ -537,7 +537,7 @@ int32_t iguana_updateramchain(struct iguana_info *coin);
 
 // blockchain
 int32_t iguana_needhdrs(struct iguana_info *coin);
-struct iguana_chain *iguana_chainfind(char *name);
+struct iguana_chain *iguana_chainfind(char *name,cJSON *argjson,int32_t createflag);
 int32_t iguana_chainextend(struct iguana_info *coin,struct iguana_block *newblock);
 uint64_t iguana_miningreward(struct iguana_info *coin,uint32_t blocknum);
 
@@ -582,7 +582,7 @@ void iguana_bundlestats(struct iguana_info *coin,char *str);
 
 // init
 struct iguana_info *iguana_coinstart(struct iguana_info *coin,int32_t initialheight,int32_t mapflags);
-void iguana_initcoin(struct iguana_info *coin);
+void iguana_initcoin(struct iguana_info *coin,cJSON *argjson);
 void iguana_coinloop(void *arg);
 
 // utils
@@ -701,7 +701,7 @@ char *busdata_sync(uint32_t *noncep,char *jsonstr,char *broadcastmode,char *dest
 void peggy();
 int32_t opreturns_init(uint32_t blocknum,uint32_t blocktimestamp,char *path);
 struct iguana_info *iguana_coinfind(const char *symbol);
-struct iguana_info *iguana_coinadd(const char *symbol);
+struct iguana_info *iguana_coinadd(const char *symbol,cJSON *json);
 struct iguana_ramchain *iguana_bundleload(struct iguana_info *coin,struct iguana_bundle *bp);
 int32_t iguana_sendblockreq(struct iguana_info *coin,struct iguana_peer *addr,struct iguana_bundle *bp,int32_t bundlei,bits256 hash2,int32_t iamthreadsafe);
 int32_t iguana_send_supernet(struct iguana_info *coin,struct iguana_peer *addr,char *jsonstr,int32_t delay);
@@ -731,7 +731,7 @@ cJSON *SuperNET_bits2json(uint8_t *serialized,int32_t datalen);
 int32_t SuperNET_sendmsg(struct supernet_info *myinfo,struct iguana_info *coin,struct iguana_peer *addr,bits256 destpub,bits256 mypriv,bits256 mypub,uint8_t *msg,int32_t len,uint8_t *data,int32_t delaymillis);
 int32_t category_peer(struct supernet_info *myinfo,struct iguana_peer *addr,bits256 category,bits256 subhash);
 int32_t btc_wif2priv(uint8_t *addrtypep,uint8_t privkey[32],char *wifstr);
-bits256 iguana_chaingenesis(char *genesisblock,char *hashalgostr,int32_t version,uint32_t timestamp,uint32_t bits,uint32_t nonce,bits256 merkle_root);
+bits256 iguana_chaingenesis(bits256 genesishash,char *genesisblock,char *hashalgostr,int32_t version,uint32_t timestamp,uint32_t bits,uint32_t nonce,bits256 merkle_root);
 int32_t iguana_send_ConnectTo(struct iguana_info *coin,struct iguana_peer *addr);
 cJSON *iguana_txjson(struct iguana_info *coin,struct iguana_txid *tx,int32_t height,struct vin_info *V);
 char *iguana_txscan(struct iguana_info *coin,cJSON *json,uint8_t *data,int32_t recvlen,bits256 txid);
diff --git a/iguana/iguana_chains.c b/iguana/iguana_chains.c
index 1f9a91f75..7aa682dae 100755
--- a/iguana/iguana_chains.c
+++ b/iguana/iguana_chains.c
@@ -122,16 +122,16 @@ blockhashfunc iguana_hashalgo(char *hashalgostr)
     return(0);
 }
 
-bits256 iguana_chaingenesis(char *genesisblock,char *hashalgostr,int32_t version,uint32_t timestamp,uint32_t bits,uint32_t nonce,bits256 merkle_root)
+bits256 iguana_chaingenesis(bits256 genesishash,char *genesisblock,char *hashalgostr,int32_t version,uint32_t timestamp,uint32_t nBits,uint32_t nonce,bits256 merkle_root)
 {
     struct iguana_msgblock msg; int32_t len,blockhashlen; bits256 hash2;
-    char blockhashstr[256]; uint8_t serialized[1024],blockhash[256];
+    char blockhashstr[256],str3[65]; uint8_t serialized[1024],blockhash[256];
     int32_t (*hashalgo)(uint8_t *blockhashp,uint8_t *serialized,int32_t len);
     memset(&msg,0,sizeof(msg));
     msg.H.version = version;
     msg.H.merkle_root = merkle_root;
     msg.H.timestamp = timestamp;
-    msg.H.bits = bits;
+    msg.H.bits = nBits;
     msg.H.nonce = nonce;
     len = iguana_rwblock(1,&hash2,serialized,&msg);
     blockhashstr[0] = 0;
@@ -139,9 +139,12 @@ bits256 iguana_chaingenesis(char *genesisblock,char *hashalgostr,int32_t version
     {
         if ( (blockhashlen= (*hashalgo)(blockhash,serialized,len)) > 0 )
             init_hexbytes_noT(blockhashstr,blockhash,blockhashlen);
-    }
+    } else init_hexbytes_noT(blockhashstr,hash2.bytes,sizeof(hash2));
+    char str[65],str2[65];
+    if ( bits256_cmp(genesishash,hash2) != 0 )
+        printf("WARNING: genesishash.(%s) mismatch vs calc.(%s)\n",bits256_str(str,genesishash),bits256_str(str2,genesishash));
     init_hexbytes_noT(genesisblock,serialized,len);
-    char str[65],str2[65]; printf("v.%d t.%u bits.%x nonce.%u merkle.(%s) genesis.(%s) hash2.(%s) blockhash.(%s) size.%ld\n",version,timestamp,bits,nonce,bits256_str(str2,merkle_root),genesisblock,bits256_str(str,hash2),blockhashstr,strlen(genesisblock)/2);
+    printf("v.%d t.%u %s nBits.%08x nonce.%u merkle.(%s) genesis.(%s) hash2.(%s) blockhash.(%s) size.%ld\n",version,timestamp,utc_str(str3,timestamp),nBits,nonce,bits256_str(str2,merkle_root),genesisblock,bits256_str(str,hash2),blockhashstr,strlen(genesisblock)/2);
     return(hash2);
 }
 
@@ -242,86 +245,10 @@ uint16_t extract_userpass(char *serverport,char *userpass,char *coinstr,char *us
     return(port);
 }
 
-void iguana_chaininit(struct iguana_chain *chain,int32_t hasheaders)
-{
-    chain->hasheaders = hasheaders;
-    chain->minoutput = 10000;
-    chain->hashalgo = blockhash_sha256;
-    if ( strcmp(chain->symbol,"BTC") == 0 )
-    {
-        chain->unitval = 0x1d;
-        chain->txfee = 10000;
-    }
-    else chain->txfee = 1000000;
-    if ( chain->unitval == 0 )
-        chain->unitval = 0x1e;
-    if ( hasheaders != 0 )
-    {
-        strcpy(chain->gethdrsmsg,"getheaders");
-        chain->bundlesize = _IGUANA_HDRSCOUNT;
-    }
-    else
-    {
-        strcpy(chain->gethdrsmsg,"getblocks");
-        chain->bundlesize = _IGUANA_BLOCKHASHES;
-    }
-    decode_hex((uint8_t *)chain->genesis_hashdata,32,(char *)chain->genesis_hash);
-    if ( chain->ramchainport == 0 )
-        chain->ramchainport = chain->portp2p - 1;
-    if ( chain->portrpc == 0 )
-        chain->portrpc = chain->portp2p + 1;
-}
-
-struct iguana_chain *iguana_chainfind(char *name)
-{
-    struct iguana_chain *chain; uint32_t i;
-	for (i=0; i<sizeof(Chains)/sizeof(*Chains); i++)
-    {
-		chain = &Chains[i];
-        printf("chain.(%s).%s vs %s.%d\n",chain->genesis_hash,chain->name,name,strcmp(name,chain->name));
-		if ( chain->name[0] == 0 || chain->genesis_hash == 0 )
-			continue;
-		if ( strcmp(name,chain->symbol) == 0 )
-        {
-            printf("found.(%s)\n",name);
-            iguana_chaininit(chain,strcmp(chain->symbol,"BTC") == 0);
-            return(chain);
-        }
-	}
-	return NULL;
-}
-
-struct iguana_chain *iguana_findmagic(uint8_t netmagic[4])
-{
-    struct iguana_chain *chain; uint8_t i;
-	for (i=0; i<sizeof(Chains)/sizeof(*Chains); i++)
-    {
-		chain = &Chains[i];
-		if ( chain->name[0] == 0 || chain->genesis_hash == 0 )
-			continue;
-		if ( memcmp(netmagic,chain->netmagic,4) == 0 )
-			return(iguana_chainfind((char *)chain->symbol));
-	}
-	return NULL;
-}
-
-uint64_t iguana_miningreward(struct iguana_info *coin,uint32_t blocknum)
-{
-    int32_t i; uint64_t reward = 50LL * SATOSHIDEN;
-    for (i=0; i<sizeof(coin->chain->rewards)/sizeof(*coin->chain->rewards); i++)
-    {
-        //printf("%d: %u %.8f\n",i,(int32_t)coin->chain->rewards[i][0],dstr(coin->chain->rewards[i][1]));
-        if ( blocknum >= coin->chain->rewards[i][0] )
-            reward = coin->chain->rewards[i][1];
-        else break;
-    }
-    return(reward);
-}
-
 void iguana_chainparms(struct iguana_chain *chain,cJSON *argjson)
 {
     extern char Userhome[];
-    char *path,*conf,*hexstr,genesisblock[1024],str[65]; bits256 hash; uint16_t port; cJSON *rpair,*genesis,*rewards,*item; int32_t i,n,m;
+    char *path,*conf,*hexstr,genesisblock[1024]; bits256 hash; uint16_t port; cJSON *rpair,*genesis,*rewards,*item; int32_t i,n,m; uint32_t nBits; uint8_t tmp[4];
     if ( strcmp(chain->symbol,"NXT") != 0 )
     {
         if ( strcmp(chain->symbol,"BTC") != 0 )
@@ -371,20 +298,30 @@ void iguana_chainparms(struct iguana_chain *chain,cJSON *argjson)
             decode_hex((uint8_t *)chain->netmagic,1,hexstr);
         if ( (hexstr= jstr(argjson,"unitval")) != 0 && strlen(hexstr) == 2 )
             decode_hex((uint8_t *)&chain->unitval,1,hexstr);
+        if ( (hexstr= jstr(argjson,"genesishash")) != 0 )
+        {
+            chain->genesis_hash = mycalloc('G',1,strlen(hexstr)+1);
+            strcpy(chain->genesis_hash,hexstr);
+        }
         if ( (genesis= jobj(argjson,"genesis")) != 0 )
         {
             chain->hashalgo = iguana_hashalgo(jstr(genesis,"hashalgo"));
-            hash = iguana_chaingenesis(genesisblock,jstr(genesis,"hashalgo"),juint(genesis,"version"),juint(genesis,"timestamp"),juint(genesis,"nbits"),juint(genesis,"nonce"),jbits256(genesis,"merkle_root"));
-            chain->genesis_hash = clonestr(bits256_str(str,hash));
+            decode_hex(hash.bytes,sizeof(hash),chain->genesis_hash);
+            if ( jstr(genesis,"nBits") != 0 )
+            {
+                decode_hex((void *)&tmp,sizeof(tmp),jstr(genesis,"nBits"));
+                ((uint8_t *)&nBits)[0] = tmp[3];
+                ((uint8_t *)&nBits)[1] = tmp[2];
+                ((uint8_t *)&nBits)[2] = tmp[1];
+                ((uint8_t *)&nBits)[3] = tmp[0];
+            }
+            else nBits = 0x1e00ffff;
+            hash = iguana_chaingenesis(hash,genesisblock,jstr(genesis,"hashalgo"),juint(genesis,"version"),juint(genesis,"timestamp"),nBits,juint(genesis,"nonce"),jbits256(genesis,"merkle_root"));
+            //chain->genesis_hash = clonestr(bits256_str(str,hash));
             chain->genesis_hex = clonestr(genesisblock);
         }
         else
         {
-            if ( (hexstr= jstr(argjson,"genesishash")) != 0 )
-            {
-                chain->genesis_hash = mycalloc('G',1,strlen(hexstr)+1);
-                strcpy(chain->genesis_hash,hexstr);
-            }
             if ( (hexstr= jstr(argjson,"genesisblock")) != 0 )
             {
                 chain->genesis_hex = mycalloc('G',1,strlen(hexstr)+1);
@@ -412,16 +349,101 @@ void iguana_chainparms(struct iguana_chain *chain,cJSON *argjson)
     }
 }
 
+void iguana_chaininit(struct iguana_chain *chain,int32_t hasheaders,cJSON *argjson)
+{
+    chain->hasheaders = hasheaders;
+    chain->minoutput = 10000;
+    chain->hashalgo = blockhash_sha256;
+    if ( strcmp(chain->symbol,"BTC") == 0 )
+    {
+        chain->unitval = 0x1d;
+        chain->txfee = 10000;
+    }
+    else chain->txfee = 1000000;
+    if ( chain->unitval == 0 )
+        chain->unitval = 0x1e;
+    if ( argjson != 0 )
+        iguana_chainparms(chain,argjson);
+    if ( hasheaders != 0 )
+    {
+        strcpy(chain->gethdrsmsg,"getheaders");
+        chain->bundlesize = _IGUANA_HDRSCOUNT;
+    }
+    else
+    {
+        strcpy(chain->gethdrsmsg,"getblocks");
+        chain->bundlesize = _IGUANA_BLOCKHASHES;
+    }
+    decode_hex((uint8_t *)chain->genesis_hashdata,32,(char *)chain->genesis_hash);
+    if ( chain->ramchainport == 0 )
+        chain->ramchainport = chain->portp2p - 1;
+    if ( chain->portrpc == 0 )
+        chain->portrpc = chain->portp2p + 1;
+}
+
+struct iguana_chain *iguana_chainfind(char *name,cJSON *argjson,int32_t createflag)
+{
+    struct iguana_chain *chain; uint32_t i;
+	for (i=0; i<sizeof(Chains)/sizeof(*Chains); i++)
+    {
+		chain = &Chains[i];
+        printf("chain.(%s).%s vs %s.%d\n",chain->genesis_hash,chain->name,name,strcmp(name,chain->name));
+		if ( chain->name[0] == 0 || chain->genesis_hash == 0 )
+        {
+            if ( createflag != 0 && argjson != 0 )
+            {
+                iguana_chaininit(chain,strcmp(chain->symbol,"BTC") == 0,argjson);
+                return(chain);
+            }
+  			continue;
+        }
+		if ( strcmp(name,chain->symbol) == 0 )
+        {
+            printf("found.(%s)\n",name);
+            iguana_chaininit(chain,strcmp(chain->symbol,"BTC") == 0,argjson);
+            return(chain);
+        }
+	}
+	return NULL;
+}
+
+struct iguana_chain *iguana_findmagic(uint8_t netmagic[4])
+{
+    struct iguana_chain *chain; uint8_t i;
+	for (i=0; i<sizeof(Chains)/sizeof(*Chains); i++)
+    {
+		chain = &Chains[i];
+		if ( chain->name[0] == 0 || chain->genesis_hash == 0 )
+			continue;
+		if ( memcmp(netmagic,chain->netmagic,4) == 0 )
+			return(iguana_chainfind((char *)chain->symbol,0,0));
+	}
+	return NULL;
+}
+
+uint64_t iguana_miningreward(struct iguana_info *coin,uint32_t blocknum)
+{
+    int32_t i; uint64_t reward = 50LL * SATOSHIDEN;
+    for (i=0; i<sizeof(coin->chain->rewards)/sizeof(*coin->chain->rewards); i++)
+    {
+        //printf("%d: %u %.8f\n",i,(int32_t)coin->chain->rewards[i][0],dstr(coin->chain->rewards[i][1]));
+        if ( blocknum >= coin->chain->rewards[i][0] )
+            reward = coin->chain->rewards[i][1];
+        else break;
+    }
+    return(reward);
+}
+
 struct iguana_chain *iguana_createchain(cJSON *json)
 {
     char *symbol,*name; struct iguana_chain *chain = 0;
-    if ( (symbol= jstr(json,"name")) != 0 && strlen(symbol) < 8 )
+    if ( ((symbol= jstr(json,"newcoin")) != 0 || (symbol= jstr(json,"name")) != 0) && strlen(symbol) < 8 )
     {
         chain = mycalloc('C',1,sizeof(*chain));
         strcpy(chain->symbol,symbol);
         if ( (name= jstr(json,"description")) != 0 && strlen(name) < 32 )
             strcpy(chain->name,name);
-        iguana_chaininit(chain,juint(json,"hasheaders"));
+        iguana_chaininit(chain,juint(json,"hasheaders"),json);
     }
     return(chain);
 }
diff --git a/iguana/iguana_exchanges.c b/iguana/iguana_exchanges.c
index 02663db6b..399c602f9 100755
--- a/iguana/iguana_exchanges.c
+++ b/iguana/iguana_exchanges.c
@@ -909,7 +909,7 @@ struct exchange_info *exchange_create(char *exchangestr,cJSON *argjson)
         exchange->commission *= .01;
     printf("ADDEXCHANGE.(%s) [%s, %s, %s] commission %.3f%%\n",exchangestr,exchange->apikey,exchange->userid,exchange->apisecret,exchange->commission * 100.);
     Exchanges[exchangeid] = exchange;
-    iguana_launch(iguana_coinadd("BTCD"),"exchangeloop",(void *)exchanges777_loop,exchange,IGUANA_EXCHANGETHREAD);
+    iguana_launch(iguana_coinadd("BTCD",0),"exchangeloop",(void *)exchanges777_loop,exchange,IGUANA_EXCHANGETHREAD);
     return(exchange);
 }
 
diff --git a/iguana/iguana_init.c b/iguana/iguana_init.c
index d5ffce0db..8e8116ecd 100755
--- a/iguana/iguana_init.c
+++ b/iguana/iguana_init.c
@@ -50,7 +50,7 @@ void iguana_initpeer(struct iguana_info *coin,struct iguana_peer *addr,uint64_t
     iguana_initQ(&addr->sendQ,"addrsendQ");
 }
 
-void iguana_initcoin(struct iguana_info *coin)
+void iguana_initcoin(struct iguana_info *coin,cJSON *argjson)
 {
     int32_t i;
     portable_mutex_init(&coin->peers_mutex);
@@ -74,15 +74,21 @@ void iguana_initcoin(struct iguana_info *coin)
 
 bits256 iguana_genesis(struct iguana_info *coin,struct iguana_chain *chain)
 {
-    struct iguana_block block,*ptr; struct iguana_msgblock msg; bits256 hash2; char str[65]; uint8_t buf[1024]; int32_t height;
+    struct iguana_block block,*ptr; struct iguana_msgblock msg; bits256 hash2; char str[65],str2[65]; uint8_t buf[1024]; int32_t height;
+    if ( chain->genesis_hex == 0 )
+    {
+        printf("no genesis_hex for %s\n",coin->symbol);
+        memset(hash2.bytes,0,sizeof(hash2));
+        return(hash2);
+    }
     decode_hex(buf,(int32_t)strlen(chain->genesis_hex)/2,(char *)chain->genesis_hex);
     hash2 = bits256_doublesha256(0,buf,sizeof(struct iguana_msgblockhdr));
     iguana_rwblock(0,&hash2,buf,&msg);
     if  ( memcmp(hash2.bytes,chain->genesis_hashdata,sizeof(hash2)) != 0 )
     {
         bits256_str(str,hash2);
-        printf("genesis mismatch? calculated %s vs %s\n",str,(char *)chain->genesis_hex);
-        hash2 = bits256_conv("00000ac7d764e7119da60d3c832b1d4458da9bc9ef9d5dd0d91a15f690a46d99");
+        printf("genesis mismatch? calculated %s vs %s\n",str,bits256_str(str2,*(bits256 *)chain->genesis_hashdata));
+        //hash2 = bits256_conv("00000ac7d764e7119da60d3c832b1d4458da9bc9ef9d5dd0d91a15f690a46d99");
                              
         //memset(hash2.bytes,0,sizeof(hash2));
         //return(hash2);
diff --git a/iguana/main.c b/iguana/main.c
index 6261c6a37..d40101816 100644
--- a/iguana/main.c
+++ b/iguana/main.c
@@ -1075,14 +1075,16 @@ void iguana_main(void *arg)
     }
    //iguana_chaingenesis(1,1403138561,0x1e0fffff,8359109,bits256_conv("fd1751cc6963d88feca94c0d01da8883852647a37a0a67ce254d62dd8c9d5b2b")); // BTCD
     //iguana_chaingenesis(1,1409839200,0x1e0fffff,64881664,bits256_conv("698a93a1cacd495a7a4fb3864ad8d06ed4421dedbc57f9aaad733ea53b1b5828")); // VPN
-    char genesisblock[1024];
-    iguana_chaingenesis(genesisblock,"sha256",1,1317972665,0x1e0ffff0,2084524493,bits256_conv("97ddfbbae6be97fd6cdf3e7ca13232a3afff2353e29badfab7f73011edd4ced9")); // LTC
+    //char genesisblock[1024];
+    //iguana_chaingenesis(genesisblock,"sha256",1,1317972665,0x1e0ffff0,2084524493,bits256_conv("97ddfbbae6be97fd6cdf3e7ca13232a3afff2353e29badfab7f73011edd4ced9")); // LTC
 
     iguana_initQ(&helperQ,"helperQ");
     OS_ensure_directory("help");
     OS_ensure_directory("confs");
     OS_ensure_directory("DB"), OS_ensure_directory("DB/ECB");
     OS_ensure_directory("tmp");
+    iguana_coinadd("BTC",0);
+    iguana_coinadd("BTCD",0);
     if ( arg != 0 && (argjson= cJSON_Parse(arg)) != 0 )
     {
         safecopy(Userhome,jstr(argjson,"userhome"),sizeof(Userhome));
@@ -1100,12 +1102,12 @@ void iguana_main(void *arg)
     {
         sprintf(helperstr,"{\"name\":\"helper.%d\"}",i);
         helperargs = clonestr(helperstr);
-        iguana_launch(iguana_coinadd("BTCD"),"iguana_helper",iguana_helper,helperargs,IGUANA_PERMTHREAD);
+        iguana_launch(iguana_coinadd("BTCD",0),"iguana_helper",iguana_helper,helperargs,IGUANA_PERMTHREAD);
     }
-    iguana_launch(iguana_coinadd("BTCD"),"rpcloop",iguana_rpcloop,SuperNET_MYINFO(0),IGUANA_PERMTHREAD);
+    iguana_launch(iguana_coinadd("BTCD",0),"rpcloop",iguana_rpcloop,SuperNET_MYINFO(0),IGUANA_PERMTHREAD);
     category_init(&MYINFO);
     if ( (coinargs= SuperNET_keysinit(&MYINFO,arg)) != 0 )
-        iguana_launch(iguana_coinadd("BTCD"),"iguana_coins",iguana_coins,coinargs,IGUANA_PERMTHREAD);
+        iguana_launch(iguana_coinadd("BTCD",0),"iguana_coins",iguana_coins,coinargs,IGUANA_PERMTHREAD);
     else if ( 1 )
     {
 #ifdef __APPLE__