diff --git a/basilisk/basilisk.c b/basilisk/basilisk.c
index 38d9b62aa..d684b257a 100755
--- a/basilisk/basilisk.c
+++ b/basilisk/basilisk.c
@@ -262,11 +262,11 @@ int32_t basilisk_sendcmd(struct supernet_info *myinfo,char *destipaddr,char *typ
     return(n);
 }
 
-int32_t basilisk_blocksubmit(struct supernet_info *myinfo,struct iguana_info *virt,char *blockstr)
+int32_t basilisk_blocksubmit(struct supernet_info *myinfo,struct iguana_info *virt,char *blockstr,bits256 hash2)
 {
     int32_t recvlen; uint8_t *data,space[16384],*allocptr;
     if ( (data= get_dataptr(BASILISK_HDROFFSET,&allocptr,&recvlen,space,sizeof(space),blockstr)) != 0 )
-        gecko_blockarrived(myinfo,virt,&virt->internaladdr,data,recvlen);
+        gecko_blockarrived(myinfo,virt,"127.0.0.1",data,recvlen,hash2);
     if ( allocptr != 0 )
         free(allocptr);
     return(recvlen);
@@ -654,6 +654,7 @@ INT_AND_ARRAY(basilisk,result,basilisktag,vals)
         ptr = calloc(1,sizeof(*ptr));
         ptr->retstr = jprint(vals,0);
         ptr->basilisktag = basilisktag;
+        strcpy(ptr->remoteaddr,remoteaddr);
         printf("(%s) -> Q.%u results vals.(%s)\n",ptr->CMD,basilisktag,ptr->retstr);
         queue_enqueue("resultsQ",&myinfo->basilisks.resultsQ,&ptr->DL,0);
         return(clonestr("{\"result\":\"queued basilisk return\"}"));
@@ -723,6 +724,36 @@ HASH_ARRAY_STRING(basilisk,VPNlogout,pubkey,vals,hexstr)
 
 #include "../includes/iguana_apiundefs.h"
 
+void basilisk_geckoresult(struct supernet_info *myinfo,struct basilisk_item *ptr)
+{
+    uint8_t *data,space[16384],*allocptr = 0; struct iguana_info *virt; char *symbol,*str,*type; int32_t datalen; cJSON *retjson; bits256 hash2;
+    if ( (retjson= cJSON_Parse(ptr->retstr)) != 0 )
+    {
+        if ( (symbol= jstr(retjson,"coin")) != 0 && (virt= iguana_coinfind(symbol)) != 0 )
+        {
+            if ( (data= get_dataptr(0,&allocptr,&datalen,space,sizeof(space),jstr(retjson,"data"))) != 0 )
+            {
+                str = 0;
+                if ( (type= jstr(retjson,"type")) != 0 )
+                {
+                    hash2 = jbits256(retjson,"pubkey");
+                    if ( strcmp(type,"HDR") == 0 )
+                        str = gecko_headersarrived(myinfo,virt,ptr->remoteaddr,data,datalen,hash2);
+                    else if ( strcmp(type,"BLK") == 0 )
+                        str = gecko_blockarrived(myinfo,virt,ptr->remoteaddr,data,datalen,hash2);
+                    else if ( strcmp(type,"GTX") == 0 )
+                        str = gecko_txarrived(myinfo,virt,ptr->remoteaddr,data,datalen,hash2);
+                }
+                if ( str != 0 )
+                    free(str);
+                if ( allocptr != 0 )
+                    free(allocptr);
+            }
+        }
+        free_json(retjson);
+    }
+}
+
 void basilisks_loop(void *arg)
 {
     basilisk_metricfunc metricfunc; struct iguana_info *btcd,*virt,*hhtmp; struct basilisk_item *ptr,*tmp,*pending,*parent; int32_t i,iter,maxmillis,done,flag,n; cJSON *valsobj,*retjson; uint32_t now; struct supernet_info *myinfo = arg;
@@ -759,6 +790,9 @@ void basilisks_loop(void *arg)
                             free_json(retjson);
                         }
                     }
+                    else if ( strcmp(ptr->CMD,"RET") == 0 )
+                    {
+                    }
                 }
             }
             free(ptr);
@@ -861,12 +895,9 @@ void basilisks_loop(void *arg)
                 //portable_mutex_lock(&Allcoins_mutex);
                 HASH_ITER(hh,myinfo->allcoins,virt,hhtmp)
                 {
-                    if ( iguana_processrecv(myinfo,virt) == 0 )
-                    {
-                        bitcoin_address(mineraddr,virt->chain->pubtype,myinfo->persistent_pubkey33,33);
-                        //printf("mine.%s %s\n",virt->symbol,mineraddr);
-                        gecko_miner(myinfo,btcd,virt,maxmillis,mineraddr);
-                    }
+                    bitcoin_address(mineraddr,virt->chain->pubtype,myinfo->persistent_pubkey33,33);
+                    //printf("mine.%s %s\n",virt->symbol,mineraddr);
+                    gecko_miner(myinfo,btcd,virt,maxmillis,mineraddr);
                     flag++;
                 }
                 //portable_mutex_unlock(&Allcoins_mutex);
@@ -903,10 +934,12 @@ void basilisk_msgprocess(struct supernet_info *myinfo,void *addr,uint32_t sender
         
         // gecko chains
         { (void *)"NEW", &basilisk_respond_newgeckochain }, // creates new virtual gecko chain
+        { (void *)"GEN", &basilisk_respond_geckogenesis },  // returns genesis list
+        { (void *)"GET", &basilisk_respond_geckoget },      // requests headers, block or tx
+        { (void *)"HDR", &basilisk_respond_geckoheaders },  // reports headers
+        { (void *)"BLK", &basilisk_respond_geckoblock },    // reports block
+        { (void *)"GTX", &basilisk_respond_geckotx },       // reports tx
         { (void *)"SEQ", &basilisk_respond_hashstamps }, // BTCD and BTC recent hashes from timestamp
-        { (void *)"GTX", &basilisk_respond_geckotx },
-        { (void *)"BLK", &basilisk_respond_geckoblock },
-        { (void *)"GEN", &basilisk_respond_geckogenesis },
         
         // unencrypted low level functions, used by higher level protocols and virtual network funcs
         { (void *)"ADD", &basilisk_respond_addrelay },   // relays register with each other bus
@@ -993,7 +1026,11 @@ void basilisk_msgprocess(struct supernet_info *myinfo,void *addr,uint32_t sender
         }
         if ( coin != 0 )
         {
-            if ( coin->RELAYNODE != 0 || coin->VALIDATENODE != 0 ) // iguana node
+            if ( strcmp(type,"RET") == 0 )
+            {
+                retstr = _basilisk_result(myinfo,coin,addr,remoteaddr,basilisktag,valsobj,data,datalen);
+            }
+            else if ( coin->RELAYNODE != 0 || coin->VALIDATENODE != 0 ) // iguana node
             {
                 for (i=0; i<sizeof(basilisk_coinservices)/sizeof(*basilisk_coinservices); i++)
                     if ( strcmp((char *)basilisk_coinservices[i][0],type) == 0 )
@@ -1007,11 +1044,7 @@ void basilisk_msgprocess(struct supernet_info *myinfo,void *addr,uint32_t sender
             }
             else // basilisk node
             {
-                if ( strcmp(type,"RET") == 0 )
-                {
-                    retstr = _basilisk_result(myinfo,coin,addr,remoteaddr,basilisktag,valsobj,data,datalen);
-                }
-                else if ( strcmp(type,"ADD") == 0 )
+                if ( strcmp(type,"ADD") == 0 )
                 {
                     printf("new relay ADD.(%s) datalen.%d\n",jprint(valsobj,0),datalen);
                 }
diff --git a/basilisk/basilisk.h b/basilisk/basilisk.h
index 0e6e6287b..20d761cc4 100755
--- a/basilisk/basilisk.h
+++ b/basilisk/basilisk.h
@@ -33,7 +33,8 @@ struct basilisk_item
 {
     struct queueitem DL; UT_hash_handle hh; struct basilisk_item *parent; void *dependents;
     uint32_t submit,finished,basilisktag,numresults,numsent,numexact,uniqueflag,numrequired,childrendone,numchildren,nBits;
-    char symbol[32],CMD[4]; double expiration; cJSON *vals; int32_t metricdir; void *metricfunc;
+    char symbol[32],CMD[4],remoteaddr[64];
+    double expiration; cJSON *vals; int32_t metricdir; void *metricfunc;
     char *retstr,*results[BASILISK_MAXFANOUT]; double metrics[BASILISK_MAXFANOUT];
 };
 
diff --git a/basilisk/basilisk_bitcoin.c b/basilisk/basilisk_bitcoin.c
index a67259a1a..2bc348818 100755
--- a/basilisk/basilisk_bitcoin.c
+++ b/basilisk/basilisk_bitcoin.c
@@ -209,7 +209,7 @@ int32_t basilisk_bitcoinscan(struct iguana_info *coin,uint8_t origblockspace[IGU
             B.RO.prev_block = jbits256(blockjson,"previousblockhash");
             B.RO.merkle_root = jbits256(blockjson,"merkleroot");
             B.RO.timestamp = juint(blockjson,"time");
-            if ( (bitstr= jstr(blockjson,"bits")) != 0 )
+            if ( (bitstr= jstr(blockjson,"nBits")) != 0 )
             {
                 decode_hex(revbits,sizeof(uint32_t),bitstr);
                 for (i=0; i<4; i++)
diff --git a/gecko/gecko.c b/gecko/gecko.c
index 803670599..18b43282b 100755
--- a/gecko/gecko.c
+++ b/gecko/gecko.c
@@ -157,7 +157,7 @@ cJSON *gecko_genesisargs(char *symbol,char *chainname,char *chain,char *keystr,c
     jaddstr(argvals,"wifval",wifval);
     if ( nbitstr == 0 || nbitstr[0] == 0 )
         nbitstr = GECKO_DEFAULTDIFFSTR;
-    jaddstr(argvals,"nbits",nbitstr);
+    jaddstr(argvals,"nBits",nbitstr);
     jaddstr(argvals,"chain",chain);
     if ( keystr != 0 )
         jaddstr(argvals,"key",keystr);
@@ -172,7 +172,10 @@ cJSON *gecko_genesisargs(char *symbol,char *chainname,char *chain,char *keystr,c
     {
         jaddnum(argvals,"services",129);
         jaddnum(argvals,"portp2p",port);
-        jaddnum(argvals,"blocktime",blocktime);
+    }
+    jaddnum(argvals,"blocktime",blocktime);
+    if ( blocktime != 0 )
+    {
         if ( blocktime == 0xffff )
             targetspacing = 24 * 60 * 60; // one day
         else targetspacing = 60; // one minute
@@ -184,10 +187,10 @@ cJSON *gecko_genesisargs(char *symbol,char *chainname,char *chain,char *keystr,c
     return(argvals);
 }
 
-cJSON *gecko_genesisjson(struct supernet_info *myinfo,struct iguana_info *btcd,int32_t isPoS,char *symbol,char *chainname,cJSON *valsobj,char *magicstr)
+cJSON *gecko_genesisjson(struct supernet_info *myinfo,struct iguana_info *btcd,int32_t isPoS,char *symbol,char *chainname,cJSON *valsobj,char *magicstr,uint16_t blocktime)
 {
-    char str2[64],hashstr[65],argbuf[1024],*pubstr,*p2shstr,*wifvalstr,*nbitstr,*blockstr; uint8_t buf[4]; int32_t i; uint32_t nBits; struct iguana_block genesis; uint16_t blocktime;
-    if ( (nbitstr= jstr(valsobj,"nbits")) == 0 )
+    char str2[64],hashstr[65],argbuf[1024],*pubstr,*p2shstr,*wifvalstr,*nbitstr,*blockstr; uint8_t buf[4]; int32_t i; uint32_t nBits; struct iguana_block genesis;
+    if ( (nbitstr= jstr(valsobj,"nBits")) == 0 )
     {
         nBits = GECKO_DEFAULTDIFF;
         nbitstr = GECKO_DEFAULTDIFFSTR;
@@ -198,8 +201,7 @@ cJSON *gecko_genesisjson(struct supernet_info *myinfo,struct iguana_info *btcd,i
             decode_hex(&buf[3-i],1,&nbitstr[i*2]);
         memcpy(&nBits,buf,sizeof(nBits));
     }
-    if ( (blocktime= juint(valsobj,"blocktime")) == 0 )
-        blocktime = 60;
+    blocktime = juint(valsobj,"blocktime");
     if ( (pubstr= jstr(valsobj,"pubval")) == 0 )
         pubstr = "00";
     if ( (p2shstr= jstr(valsobj,"p2shval")) == 0 )
@@ -213,7 +215,7 @@ cJSON *gecko_genesisjson(struct supernet_info *myinfo,struct iguana_info *btcd,i
     if ( (blockstr= gecko_createblock(myinfo,btcd,isPoS,&genesis,symbol,0,0,0,10000)) != 0 )
     {
         bits256_str(hashstr,genesis.RO.hash2);
-        sprintf(argbuf,"{\"isPoS\":%d,\"name\":\"%s\",\"symbol\":\"%s\",\"netmagic\":\"%s\",\"port\":%u,\"blocktime\":%u,\"pubval\":\"%s\",\"p2shval\":\"%s\",\"wifval\":\"%s\",\"isPoS\":%u,\"unitval\":\"%02x\",\"genesishash\":\"%s\",\"genesis\":{\"version\":1,\"timestamp\":%u,\"nbits\":\"%s\",\"nonce\":%d,\"merkle_root\":\"%s\"},\"genesisblock\":\"%s\"}",isPoS,chainname,symbol,magicstr,juint(valsobj,"port"),blocktime,pubstr,p2shstr,wifvalstr,juint(valsobj,"isPoS"),(nBits >> 24) & 0xff,hashstr,genesis.RO.timestamp,nbitstr,genesis.RO.nonce,bits256_str(str2,genesis.RO.merkle_root),blockstr);
+        sprintf(argbuf,"{\"isPoS\":%d,\"name\":\"%s\",\"symbol\":\"%s\",\"netmagic\":\"%s\",\"port\":%u,\"blocktime\":%u,\"pubval\":\"%s\",\"p2shval\":\"%s\",\"wifval\":\"%s\",\"isPoS\":%u,\"unitval\":\"%02x\",\"genesishash\":\"%s\",\"genesis\":{\"version\":1,\"timestamp\":%u,\"nBits\":\"%s\",\"nonce\":%d,\"merkle_root\":\"%s\"},\"genesisblock\":\"%s\"}",isPoS,chainname,symbol,magicstr,juint(valsobj,"port"),blocktime,pubstr,p2shstr,wifvalstr,juint(valsobj,"isPoS"),(nBits >> 24) & 0xff,hashstr,genesis.RO.timestamp,nbitstr,genesis.RO.nonce,bits256_str(str2,genesis.RO.merkle_root),blockstr);
         free(blockstr);
         //printf("argbuf.(%s) hash.%s\n",argbuf,hashstr);
         return(cJSON_Parse(argbuf));
@@ -222,8 +224,8 @@ cJSON *gecko_genesisjson(struct supernet_info *myinfo,struct iguana_info *btcd,i
 
 cJSON *gecko_genesisissue(char *symbol,char *chainname,char *chainstr,cJSON *valsobj)
 {
-    //printf("issue isPoS.%d\n",juint(valsobj,"isPoS"));
-    return(gecko_genesisargs(symbol,chainname,chainstr,jstr(valsobj,"key"),jstr(valsobj,"genesishash"),jstr(valsobj,"genesisblock"),jstr(valsobj,"netmagic"),juint(valsobj,"port"),juint(valsobj,"blocktime"),jstr(valsobj,"nbits"),jstr(valsobj,"pubval"),jstr(valsobj,"p2shval"),jstr(valsobj,"wifval"),juint(valsobj,"isPoS")));
+    printf("issue blocktime.%d\n",juint(valsobj,"blocktime"));
+    return(gecko_genesisargs(symbol,chainname,chainstr,jstr(valsobj,"key"),jstr(valsobj,"genesishash"),jstr(valsobj,"genesisblock"),jstr(valsobj,"netmagic"),juint(valsobj,"port"),juint(valsobj,"blocktime"),jstr(valsobj,"nBits"),jstr(valsobj,"pubval"),jstr(valsobj,"p2shval"),jstr(valsobj,"wifval"),juint(valsobj,"isPoS")));
 }
 
 struct iguana_info *basilisk_geckochain(struct supernet_info *myinfo,char *symbol,char *chainname,cJSON *valsobj)
@@ -245,8 +247,11 @@ struct iguana_info *basilisk_geckochain(struct supernet_info *myinfo,char *symbo
                 free(ptr);
             virt->chain->genesis_hex = clonestr(hexstr);
             virt->MAXPEERS = 0;
+            virt->virtualchain = 1;
             addr = &virt->internaladdr;
             iguana_initpeer(virt,addr,calc_ipbits("127.0.0.1"));
+            if ( addr->blockspace == 0 )
+                addr->blockspace = calloc(1,IGUANA_MAXPACKETSIZE + 8192);
             if ( addr->RAWMEM.ptr == 0 )
                 iguana_meminit(&addr->RAWMEM,virt->symbol,0,IGUANA_MAXPACKETSIZE * 2,0);
             if ( addr->TXDATA.ptr == 0 )
@@ -352,6 +357,95 @@ char *basilisk_respond_geckogenesis(struct supernet_info *myinfo,char *CMD,void
     return(OS_filestr(&filesize,"genesis/list"));
 }
 
+char *basilisk_standardreturn(char *CMD,char *type,struct iguana_info *virt,uint8_t *serialized,int32_t datalen)
+{
+    char space[16384],*allocstr = 0; cJSON *retjson = cJSON_CreateObject();
+    if ( datalen > 0 && basilisk_addhexstr(&allocstr,retjson,space,sizeof(space),serialized,datalen) != 0 )
+    {
+        jaddstr(retjson,"CMD",CMD);
+        jaddstr(retjson,"type",type);
+        jaddstr(retjson,"coin",virt->symbol);
+        jaddnum(retjson,"longest",virt->longestchain);
+        jaddnum(retjson,"hwm",virt->blocks.hwmchain.height);
+        jaddbits256(retjson,"pubkey",virt->blocks.hwmchain.RO.hash2);
+    }
+    else jaddstr(retjson,"error","no data to send");
+    if ( allocstr != 0 )
+        free(allocstr);
+    return(jprint(retjson,1));
+}
+
+int32_t basilisk_respond_geckogetheaders(struct supernet_info *myinfo,struct iguana_info *virt,uint8_t *serialized,int32_t maxsize,cJSON *valsobj,bits256 hash2)
+{
+    int32_t i,n,num,height,len=0; struct iguana_block *block;
+    if ( (block= iguana_blockfind("geckohdr",virt,hash2)) != 0 )
+    {
+        if ( (height= block->height) >= 0 )
+        {
+            if ( (num= juint(valsobj,"num")) == 0 || num > virt->chain->bundlesize )
+                num = virt->chain->bundlesize;
+            for (i=0; i<num; i++)
+            {
+                if ( block != 0 )
+                {
+                    if ( (n= iguana_headerget(virt,&serialized[len],maxsize-len,block)) > 0 )
+                        len += n;
+                }
+                hash2 = iguana_blockhash(virt,height+i+1);
+                block = iguana_blockfind("geckohdri",virt,hash2);
+            }
+            return(len);
+        }
+    }
+    return(-1);
+}
+
+int32_t basilisk_respond_geckogetblock(struct supernet_info *myinfo,struct iguana_info *virt,uint8_t *serialized,int32_t maxsize,cJSON *valsobj,bits256 hash2)
+{
+    int32_t datalen = 0;
+    // set serialized
+    return(datalen);
+}
+
+int32_t basilisk_respond_geckogettx(struct supernet_info *myinfo,struct iguana_info *virt,uint8_t *serialized,int32_t maxsize,cJSON *valsobj,bits256 hash2)
+{
+    int32_t datalen = 0;
+    // set serialized
+    return(datalen);
+}
+
+char *basilisk_respond_geckoget(struct supernet_info *myinfo,char *CMD,void *addr,char *remoteaddr,uint32_t basilisktag,cJSON *valsobj,uint8_t *data,int32_t datalen,bits256 hash2,int32_t from_basilisk)
+{
+    int32_t (*getfunc)(struct supernet_info *myinfo,struct iguana_info *virt,uint8_t *serialized,int32_t maxsize,cJSON *valsobj,bits256 hash2);
+    uint8_t *serialized; int32_t maxsize,len = 0; char *symbol,*type; struct iguana_info *virt;
+    if ( (type= jstr(valsobj,"type")) != 0 )
+    {
+        if ( strcmp(type,"HDR") == 0 )
+            getfunc = basilisk_respond_geckogetheaders;
+        else if ( strcmp(type,"BLK") == 0 )
+            getfunc = basilisk_respond_geckogetblock;
+        else if ( strcmp(type,"GTX") == 0 )
+            getfunc = basilisk_respond_geckogettx;
+        else return(clonestr("{\"error\":\"invalid geckoget type, mustbe (HDR or BLK or GTX)\"}"));
+        if ( (serialized= ((struct iguana_peer *)addr)->blockspace) == 0 )
+            return(clonestr("{\"error\":\"peer has no blockspace\"}"));
+        maxsize = IGUANA_MAXPACKETSIZE;
+        if ( (symbol= jstr(valsobj,"symbol")) != 0 && (virt= iguana_coinfind(symbol)) != 0 )
+        {
+            datalen = (*getfunc)(myinfo,virt,serialized,maxsize,valsobj,hash2);
+            return(basilisk_standardreturn(CMD,type,virt,serialized,len));
+        } else return(clonestr("{\"error\":\"couldt find gecko chain\"}"));
+    } else return(clonestr("{\"error\":\"invalid geckoget type, mustbe (HDR or BLK or GTX)\"}"));
+}
+
+char *basilisk_respond_geckoheaders(struct supernet_info *myinfo,char *CMD,void *addr,char *remoteaddr,uint32_t basilisktag,cJSON *valsobj,uint8_t *data,int32_t datalen,bits256 hash2,int32_t from_basilisk)
+{
+    char *symbol; struct iguana_info *virt;
+    if ( (symbol= jstr(valsobj,"symbol")) != 0 && (virt= iguana_coinfind(symbol)) != 0 )
+        return(gecko_headersarrived(myinfo,virt,addr,data,datalen,hash2));
+    else return(clonestr("{\"error\":\"couldt find gecko chain\"}"));
+}
+
 char *basilisk_respond_geckotx(struct supernet_info *myinfo,char *CMD,void *addr,char *remoteaddr,uint32_t basilisktag,cJSON *valsobj,uint8_t *data,int32_t datalen,bits256 txid,int32_t from_basilisk)
 {
     bits256 checktxid; int32_t blocklen; uint32_t nBits; char *symbol,*blockstr,*txptrs[2],space[4096]; struct iguana_info *virt; cJSON *sendjson; struct iguana_block newblock; uint8_t *blockdata,*allocptr,blockspace[8192];
@@ -362,7 +456,7 @@ char *basilisk_respond_geckotx(struct supernet_info *myinfo,char *CMD,void *addr
         newblock.height = virt->blocks.hwmchain.height + 1;
         newblock.RO.prev_block = virt->blocks.hwmchain.RO.prev_block;
         newblock.RO.version = GECKO_DEFAULTVERSION;
-        if ( bits256_cmp(txid,checktxid) == 0 && (nBits= gecko_nBits(virt,&newblock)) != 0 )
+        if ( bits256_cmp(txid,checktxid) == 0 && (nBits= gecko_nBits(virt,&newblock,GECKO_DIFFITERS)) != 0 )
         {
             newblock.RO.bits = nBits;
             txptrs[0] = basilisk_addhexstr(&txptrs[1],0,space,sizeof(space),data,datalen); // add mempool
@@ -396,12 +490,12 @@ char *basilisk_respond_geckoblock(struct supernet_info *myinfo,char *CMD,void *a
     if ( (symbol= jstr(valsobj,"coin")) != 0 && (virt= iguana_coinfind(symbol)) != 0 )
     {
         hdrsize = (virt->chain->zcash != 0) ? sizeof(struct iguana_msgblockhdr_zcash) : sizeof(struct iguana_msgblockhdr);
-        nBits = gecko_nBits(virt,(struct iguana_block *)&virt->blocks.hwmchain);
+        nBits = gecko_nBits(virt,(struct iguana_block *)&virt->blocks.hwmchain,GECKO_DIFFITERS);
         if ( gecko_blocknonce_verify(virt,data,hdrsize,nBits) == 0 )
         {
             iguana_rwblock(symbol,virt->chain->zcash,virt->chain->auxpow,virt->chain->hashalgo,0,&checkhash2,data,&msg,datalen);
             if ( bits256_cmp(hash2,checkhash2) == 0 )
-                return(gecko_blockarrived(myinfo,virt,addr,data,datalen));
+                return(gecko_blockarrived(myinfo,virt,addr,data,datalen,hash2));
             else return(clonestr("{\"error\":\"block error with checkhash2\"}"));
         } else return(clonestr("{\"error\":\"block nonce didnt verify\"}"));
     }
@@ -436,7 +530,7 @@ HASH_ARRAY_STRING(basilisk,newgeckochain,pubkey,vals,hexstr)
         if ( (isPoS= juint(vals,"isPoS")) == 0 )
             isPoS = 1;
         //printf("netmagic.%s\n",magicstr);
-        if ( (argjson= gecko_genesisjson(myinfo,btcd,isPoS,symbol,chainname,vals,magicstr)) != 0 )
+        if ( (argjson= gecko_genesisjson(myinfo,btcd,isPoS,symbol,chainname,vals,magicstr,juint(vals,"blocktime"))) != 0 )
         {
             argvals = gecko_genesisissue(symbol,chainname,chainstr,argjson);
             if ( btcd->RELAYNODE != 0 || btcd->VALIDATENODE != 0 )
@@ -488,8 +582,17 @@ HASH_ARRAY_STRING(basilisk,geckotx,pubkey,vals,hexstr)
 
 HASH_ARRAY_STRING(basilisk,geckoblock,pubkey,vals,hexstr)
 {
-    return(clonestr("{\"error\":\"geckoblock is an internal function\"}"));
-    //return(basilisk_standardservice("BLK",myinfo,pubkey,vals,hexstr,1));
+    return(clonestr("{\"error\":\"geckoblock is an internal reporting function\"}"));
+}
+
+HASH_ARRAY_STRING(basilisk,geckoheaders,pubkey,vals,hexstr)
+{
+    return(clonestr("{\"error\":\"geckoheaders is an internal reporting function\"}"));
+}
+
+HASH_ARRAY_STRING(basilisk,geckoget,pubkey,vals,hexstr)
+{
+    return(basilisk_respond_geckoget(myinfo,"GET",&coin->internaladdr,remoteaddr,0,vals,0,0,pubkey,0));
 }
 
 HASH_ARRAY_STRING(basilisk,geckogenesis,pubkey,vals,hexstr)
diff --git a/gecko/gecko.h b/gecko/gecko.h
index 449ea0965..8025a7ccd 100755
--- a/gecko/gecko.h
+++ b/gecko/gecko.h
@@ -20,13 +20,15 @@
 #define GECKO_MAXBTCDGAP 18
 
 #define GECKO_DEFAULTVERSION 1
-#define GECKO_DEFAULTDIFF 0x1fffffff
-#define GECKO_DEFAULTDIFFSTR "1fffffff"
+#define GECKO_EASIESTDIFF 0x1fffffff
+#define GECKO_DEFAULTDIFF 0x1f00ffff
+#define GECKO_DEFAULTDIFFSTR "1f00ffff"
 
 #define GECKO_FIRSTPOSSIBLEBTC 414000
 #define GECKO_FIRSTPOSSIBLEBTCD 1100000
 #define GECKO_MAXNAMELEN 64
 #define GECKO_MAXMINERITERS 10000000
+#define GECKO_DIFFITERS 3
 
 struct iguana_peer;
 
@@ -48,11 +50,14 @@ char *basilisk_respond_hashstamps(struct supernet_info *myinfo,char *CMD,void *a
 char *basilisk_respond_newgeckochain(struct supernet_info *myinfo,char *CMD,void *addr,char *remoteaddr,uint32_t basilisktag,cJSON *valsobj,uint8_t *data,int32_t datalen,bits256 prevhash,int32_t from_basilisk);
 char *basilisk_respond_geckotx(struct supernet_info *myinfo,char *CMD,void *addr,char *remoteaddr,uint32_t basilisktag,cJSON *valsobj,uint8_t *data,int32_t datalen,bits256 prevhash,int32_t from_basilisk);
 char *basilisk_respond_geckoblock(struct supernet_info *myinfo,char *CMD,void *addr,char *remoteaddr,uint32_t basilisktag,cJSON *valsobj,uint8_t *data,int32_t datalen,bits256 prevhash,int32_t from_basilisk);
+char *basilisk_respond_geckoheaders(struct supernet_info *myinfo,char *CMD,void *addr,char *remoteaddr,uint32_t basilisktag,cJSON *valsobj,uint8_t *data,int32_t datalen,bits256 hash2,int32_t from_basilisk);
+char *basilisk_respond_geckoget(struct supernet_info *myinfo,char *CMD,void *addr,char *remoteaddr,uint32_t basilisktag,cJSON *valsobj,uint8_t *data,int32_t datalen,bits256 hash2,int32_t from_basilisk);
 
 void gecko_miner(struct supernet_info *myinfo,struct iguana_info *btcd,struct iguana_info *virt,int32_t maxmillis,char *mineraddr);
 void gecko_seqresult(struct supernet_info *myinfo,char *retstr);
 int32_t gecko_sequpdate(char *symbol,uint32_t reftimestamp);
-char *gecko_blockarrived(struct supernet_info *myinfo,struct iguana_info *virt,struct iguana_peer *addr,uint8_t *data,int32_t datalen);
-char *gecko_headersarrived(struct supernet_info *myinfo,struct iguana_info *virt,struct iguana_peer *addr,uint8_t *data,int32_t datalen);
+char *gecko_blockarrived(struct supernet_info *myinfo,struct iguana_info *virt,char *remoteaddr,uint8_t *data,int32_t datalen,bits256 hash2);
+char *gecko_txarrived(struct supernet_info *myinfo,struct iguana_info *virt,char *remoteaddr,uint8_t *data,int32_t datalen,bits256 hash2);
+char *gecko_headersarrived(struct supernet_info *myinfo,struct iguana_info *virt,char *remoteaddr,uint8_t *data,int32_t datalen,bits256 hash2);
 
 #endif
diff --git a/gecko/gecko_blocks.c b/gecko/gecko_blocks.c
index 339d7512d..69b9dedb8 100755
--- a/gecko/gecko_blocks.c
+++ b/gecko/gecko_blocks.c
@@ -15,22 +15,125 @@
 
 // included from gecko.c
 
-char *gecko_headersarrived(struct supernet_info *myinfo,struct iguana_info *virt,struct iguana_peer *addr,uint8_t *data,int32_t datalen)
+char *gecko_headersarrived(struct supernet_info *myinfo,struct iguana_info *virt,char *remoteaddr,uint8_t *data,int32_t datalen,bits256 hash2)
 {
     return(clonestr("{\"result\":\"gecko headers queued\"}"));
 }
 
-char *gecko_blockarrived(struct supernet_info *myinfo,struct iguana_info *virt,struct iguana_peer *addr,uint8_t *data,int32_t datalen)
+char *gecko_txarrived(struct supernet_info *myinfo,struct iguana_info *virt,char *remoteaddr,uint8_t *data,int32_t datalen,bits256 txid)
 {
-    struct iguana_txblock txdata; int32_t n,len = -1; struct iguana_msghdr H;
+    return(clonestr("{\"result\":\"gecko headers queued\"}"));
+}
+
+struct iguana_bundle *gecko_ensurebundle(struct iguana_info *virt,struct iguana_block *block,int32_t origheight,int32_t depth)
+{
+    int32_t hdrsi,bundlei,i,iter,checkbundlei,height = origheight; bits256 zero; struct iguana_block *prev; struct iguana_bundle *bp = 0;
+    memset(zero.bytes,0,sizeof(zero));
+    for (iter=0; iter<2; iter++)
+    {
+        prev = block;
+        height = block->height;
+        for (i=0; i<depth; i++,height--)
+        {
+            if ( prev == 0 || height < 0 )
+                return(0);
+            bundlei = (height % virt->chain->bundlesize);
+            hdrsi = (height / virt->chain->bundlesize);
+            if ( iter == 1 )
+            {
+                if ( (bp= virt->bundles[hdrsi]) != 0 )
+                {
+                    bp->blocks[bundlei] = prev;
+                    bp->hashes[bundlei] = prev->RO.hash2;
+                }
+                else
+                {
+                    printf("cant find bundle for ht.%d\n",height);
+                    return(0);
+                }
+            }
+            else if ( bundlei == 0 && virt->bundles[hdrsi] == 0 )
+                iguana_bundlecreate(virt,&checkbundlei,height,prev->RO.hash2,zero,0);
+            prev = iguana_blockfind("geckoensure",virt,prev->RO.prev_block);
+        }
+    }
+    hdrsi = (block->height / virt->chain->bundlesize);
+    return(virt->bundles[hdrsi]);
+}
+
+char *gecko_blockarrived(struct supernet_info *myinfo,struct iguana_info *virt,char *remoteaddr,uint8_t *data,int32_t datalen,bits256 hash2)
+{
+    struct iguana_txblock txdata; int32_t valid,adjacent,n,i,hdrsi,j,len = -1; struct iguana_peer *addr; struct iguana_block *block,*prev; struct iguana_bundle *bp;
+    memset(&txdata,0,sizeof(txdata));
     if ( virt->TXMEM.ptr == 0 )
         iguana_meminit(&virt->TXMEM,virt->name,0,IGUANA_MAXPACKETSIZE * 2,0);
     iguana_memreset(&virt->TXMEM);
-    memset(&txdata,0,sizeof(txdata));
+    addr = &virt->internaladdr;
     if ( (n= iguana_gentxarray(virt,&virt->TXMEM,&txdata,&len,data,datalen)) == datalen )
     {
-        memset(&H,0,sizeof(H));
-        iguana_gotblockM(virt,addr,&txdata,virt->TXMEM.ptr,&H,data,datalen);
-        return(clonestr("{\"result\":\"gecko block queued\"}"));
-    } else return(clonestr("{\"error\":\"gecko block didnt decode\"}"));
+        if ( bits256_cmp(hash2,txdata.zblock.RO.hash2) != 0 )
+        {
+            printf("gecko_blockarrived: mismatched hash2\n");
+            return(clonestr("{\"error\":\"gecko block hash2 mismatch\"}"));
+        }
+        txdata.zblock.RO.allocsize = sizeof(struct iguana_block);
+        if ( iguana_blockvalidate(virt,&valid,(struct iguana_block *)&txdata.zblock,1) < 0 )
+        {
+            char str[65]; printf("got block that doesnt validate? %s\n",bits256_str(str,txdata.zblock.RO.hash2));
+            return(clonestr("{\"error\":\"gecko block didnt validate\"}"));
+        }
+        if ( (block= iguana_blockfind("geckoblock",virt,hash2)) == 0 )
+        {
+            if ( (block= iguana_blockhashset("geckoblock",virt,-1,hash2,1)) == 0 )
+                return(clonestr("{\"error\":\"gecko block couldnt be created\"}"));
+        }
+        iguana_blockcopy(virt->chain->zcash,virt->chain->auxpow,virt,block,(struct iguana_block *)&txdata.zblock);
+        prev = block;
+        adjacent = -1;
+        for (i=0; i<virt->chain->bundlesize; i++)
+        {
+            if ( (prev= iguana_blockfind("geckoprev",virt,prev->RO.prev_block)) == 0 )
+                return(clonestr("{\"error\":\"gecko block is orphan\"}"));
+            if ( i == 0 )
+                adjacent = prev->height;
+            //printf("i.%d prevht.%d adjacent.%d hwm.%d\n",i,prev->height,adjacent,virt->blocks.hwmchain.height);
+            if ( prev->height >= 0 )
+            {
+                block->height = adjacent + 1;
+                if ( block->height > virt->blocks.hwmchain.height ) // longest chain wins
+                {
+                    //printf("new HWM %d adjacent.%d prev.%d i.%d\n",block->height,adjacent,prev->height,i);
+                    block->mainchain = 1;
+                    prev = block;
+                    // probably should clear mainchain bits in old path
+                    for (j=0; j<=i; j++)
+                    {
+                        if ( (prev= iguana_blockfind("geckoprev",virt,prev->RO.prev_block)) == 0 )
+                            return(clonestr("{\"error\":\"gecko block mainchain link error\"}"));
+                        prev->mainchain = 1;
+                    }
+                    iguana_blockzcopy(virt->chain->zcash,(void *)&virt->blocks.hwmchain,block);
+                    if ( gecko_ensurebundle(virt,block,block->height,i+1) == 0 )
+                        return(clonestr("{\"error\":\"gecko bundle couldnt be created\"}"));
+                    if ( iguana_ramchain_data(virt,addr,&txdata,virt->TXMEM.ptr,txdata.zblock.RO.txn_count,data,datalen) >= 0 )
+                    {
+                        block->fpipbits = (uint32_t)addr->ipbits;
+                        block->RO.recvlen = datalen;
+                        block->txvalid = 1;
+                        hdrsi = block->height / virt->chain->bundlesize;
+                        if ( (bp= virt->bundles[hdrsi]) != 0 )
+                        {
+                            bp->numsaved++;
+                            if ( (block->height % virt->chain->bundlesize) == 13 && hdrsi > 0 && (bp= virt->bundles[hdrsi - 1]) != 0 && bp->emitfinish == 0 && bp->numsaved >= bp->n )
+                                iguana_bundlefinalize(virt,bp,&virt->MEM,virt->MEMB);
+                        }
+                        //printf("created block.%d [%d:%d] %d\n",block->height,bp!=0?bp->hdrsi:-1,block->height%virt->chain->bundlesize,bp->numsaved);
+                        return(clonestr("{\"result\":\"gecko block created\"}"));
+                    } else return(clonestr("{\"error\":\"gecko error creating ramchain0\"}"));
+                }
+            }
+        }
+    }
+    return(clonestr("{\"error\":\"gecko block didnt decode\"}"));
 }
+
diff --git a/gecko/gecko_miner.c b/gecko/gecko_miner.c
index ede140a24..4a8d38d3e 100755
--- a/gecko/gecko_miner.c
+++ b/gecko/gecko_miner.c
@@ -25,19 +25,85 @@ int32_t gecko_blocknonce_verify(struct iguana_info *virt,uint8_t *serialized,int
     else return(0);
 }
 
-uint32_t gecko_nBits(struct iguana_info *virt,struct iguana_block *newblock)
+/*uint32_t iguana_targetbits(struct iguana_info *coin,struct iguana_block *hwmchain,struct iguana_block *prev,struct iguana_block *prev2,int32_t PoSflag,int32_t targetspacing,int32_t targettimespan)
 {
-    uint32_t nBits = GECKO_DEFAULTDIFF; struct iguana_block *prev=0,*prev2=0;
-    if ( newblock->height >= 0 && (prev= iguana_blockfind("geckotx",virt,newblock->RO.prev_block)) != 0 && prev->height > 1 )
+    // targetspacing NTARGETSPACING, mspacing NINTERVAL_MSPACING, pspacing NINTERVAL_PSPACING
+    bits256 mpz_muldivcmp(bits256 oldval,int32_t mulval,int32_t divval,bits256 cmpval);
+    bits256 targetval; int32_t gap,mspacing,pspacing;
+    if ( hwmchain->height <= 2 || hwmchain->height <= 0 )
+        return(hwmchain->RO.bits);
+    mspacing = (((targettimespan / targetspacing) - 1) * targetspacing);
+    pspacing = (((targettimespan / targetspacing) + 1) * targetspacing);
+    targetval = iguana_targetval(coin,hwmchain->height,PoSflag);
+    if ( prev != 0 )
+    {
+        if ( prev2 != 0 && prev->RO.timestamp != 0 && prev2->RO.timestamp != 0 )
+        {
+            //if ( prev->RO.timestamp != 0 && prev2->RO.timestamp != 0 ) skip check for compatiblity
+            {
+                if ( (gap= prev->RO.timestamp - prev2->RO.timestamp) < 0 )
+                    gap = targetspacing;
+                //printf("nBits.%08x gap.%d (%u - %u)\n",prev->RO.bits,gap,prev->RO.timestamp,prev2->RO.timestamp);
+                targetval = mpz_muldivcmp(bits256_from_compact(prev->RO.bits),mspacing + (gap << 1),pspacing,targetval);
+            }
+        }
+    }
+    return(bits256_to_compact(targetval));
+}*/
+
+uint32_t gecko_nBits(struct iguana_info *virt,struct iguana_block *block,int32_t n)
+{
+    uint32_t nBits = GECKO_DEFAULTDIFF,starttime,endtime,est; struct iguana_block *prev=0; int32_t i,diff; bits256 targetval;
+    if ( virt->chain->estblocktime == 0 )
+        return(GECKO_EASIESTDIFF);
+    for (i=0; i<n; i++)
+    {
+        if ( (prev= iguana_blockfind("geckotx",virt,block->RO.prev_block)) == 0 || prev->height == 0 )
+        {
+            i++;
+            break;
+        }
+        if ( i == 0 )
+        {
+            endtime = prev->RO.timestamp;
+            nBits = prev->RO.bits;
+        }
+        starttime = prev->RO.timestamp;
+        block = prev;
+    }
+    if ( starttime != 0 && endtime > starttime && i > 1 )
+    {
+        diff = (endtime - starttime);
+        est = virt->chain->estblocktime * i;
+        targetval = bits256_from_compact(nBits);
+        if ( diff > est )
+        {
+            targetval = bits256_rshift(bits256_add(targetval,bits256_lshift(targetval)));
+        }
+        else if ( diff < est )
+        {
+            targetval = bits256_rshift(bits256_add(targetval,bits256_rshift(targetval)));
+        }
+        //printf("diff.%d est.%d nBits.%08x <- %08x\n",endtime - starttime,virt->chain->estblocktime * i,bits256_to_compact(targetval),nBits);
+        nBits = bits256_to_compact(targetval);
+    }
+    if ( nBits > GECKO_EASIESTDIFF )
+    {
+        printf("nBits.%08x vs easiest %08x\n",nBits,GECKO_EASIESTDIFF);
+        nBits = GECKO_EASIESTDIFF;
+    }
+  /*if ( newblock->height >= 0 && (prev= iguana_blockfind("geckotx",virt,newblock->RO.prev_block)) != 0 && prev->height > 1 )
     {
         if ( (prev2= iguana_blockfind("prvatetx2",virt,prev->RO.prev_block)) != 0 && prev2->height >= 0 )
         {
             nBits = iguana_targetbits(virt,newblock,prev,prev2,1,virt->chain->targetspacing,virt->chain->targettimespan);
-            if ( nBits > virt->chain->nBits )
-                nBits = virt->chain->nBits;
+            if ( nBits > GECKO_EASIESTDIFF )
+            {
+                printf("nBits.%08x vs easiest %08x\n",nBits,GECKO_EASIESTDIFF);
+                nBits = GECKO_EASIESTDIFF;
+            }
         }
-        else nBits = virt->chain->nBits;
-    } else printf("ht.%d prev.%p prevht.%d prev2.%p\n",newblock->height,prev,prev!=0?prev->height:-1,prev2);
+    } else printf("ht.%d prev.%p prevht.%d prev2.%p\n",newblock->height,prev,prev!=0?prev->height:-1,prev2);*/
     return(nBits);
 }
 
@@ -216,11 +282,11 @@ char **gecko_mempool(struct supernet_info *myinfo,struct iguana_info *virt,int64
     return(0);
 }
 
-void gecko_blocksubmit(struct supernet_info *myinfo,struct iguana_info *virt,char *blockstr)
+void gecko_blocksubmit(struct supernet_info *myinfo,struct iguana_info *virt,char *blockstr,bits256 hash2)
 {
     uint8_t *data,space[16384],*allocptr=0; int32_t i,len,numranked=0; struct iguana_peers *peers; struct iguana_peer *addr;
     if ( (peers= virt->peers) == 0 || (numranked= peers->numranked) == 0 )
-        basilisk_blocksubmit(myinfo,virt,blockstr);
+        basilisk_blocksubmit(myinfo,virt,blockstr,hash2);
     else
     {
         if ( (data= get_dataptr(sizeof(struct iguana_msghdr),&allocptr,&len,space,sizeof(space),blockstr)) != 0 )
@@ -239,13 +305,14 @@ void gecko_blocksubmit(struct supernet_info *myinfo,struct iguana_info *virt,cha
 void gecko_miner(struct supernet_info *myinfo,struct iguana_info *btcd,struct iguana_info *virt,int32_t maxmillis,char *mineraddr)
 {
     struct iguana_zblock newblock; uint32_t nBits,locktime=0; int64_t reward = 0; int32_t bundlei,txn_count; cJSON *item,*array,*coinbasetx=0; char *blockstr,**txptrs,*ptr,*space[256]; struct iguana_bundle *bp;
-    if ( virt->virtualchain == 0 || virt->bundles[virt->blocks.hwmchain.height / virt->chain->bundlesize] == 0 )
+    if ( virt->virtualchain == 0 )//|| virt->bundles[virt->blocks.hwmchain.height / virt->chain->bundlesize] == 0 )
         return;
     memset(&newblock,0,sizeof(newblock));
     newblock.height = virt->blocks.hwmchain.height + 1;
     newblock.RO.prev_block = virt->blocks.hwmchain.RO.hash2;
     newblock.RO.version = GECKO_DEFAULTVERSION;
-    if ( (nBits= gecko_nBits(virt,(void *)&newblock)) != 0 )
+    newblock.RO.allocsize = sizeof(struct iguana_block);
+    if ( (nBits= gecko_nBits(virt,(void *)&newblock,GECKO_DIFFITERS)) != 0 )
     {
         newblock.RO.bits = nBits;
         //printf("mine.%s %s nBits.%x\n",virt->symbol,mineraddr,nBits);
@@ -271,11 +338,11 @@ void gecko_miner(struct supernet_info *myinfo,struct iguana_info *btcd,struct ig
                 iguana_hash2set(virt,"miner",bp,bundlei,newblock.RO.hash2);
                 if ( iguana_bundlefind(virt,&bp,&bundlei,newblock.RO.hash2) == 0 )
                     printf("cant find ht.%d %s\n",newblock.height,bits256_str(str,newblock.RO.hash2));
-                else printf("found bp.%p bundlei.%d\n",bp,bundlei);
+                //else printf("found bp.%p bundlei.%d\n",bp,bundlei);
             }
-            virt->blocks.hwmchain = newblock;
-            char str[65]; printf("%s mined.%x %s isPoS.%d numtx.%d ht.%d\n",virt->symbol,newblock.RO.bits,bits256_str(str,newblock.RO.hash2),virt->chain->isPoS,newblock.RO.txn_count,newblock.height);
-            gecko_blocksubmit(myinfo,virt,blockstr);
+            //virt->blocks.hwmchain = newblock;
+            //char str[65]; printf("%s mined.%x %s %u ht.%d\n",virt->symbol,newblock.RO.bits,bits256_str(str,newblock.RO.hash2),newblock.RO.timestamp,newblock.height);
+            gecko_blocksubmit(myinfo,virt,blockstr,newblock.RO.hash2);
             free(blockstr);
         }
         if ( txptrs != space )
diff --git a/iguana/iguana777.c b/iguana/iguana777.c
index 48b4db9a1..af4bbc96f 100755
--- a/iguana/iguana777.c
+++ b/iguana/iguana777.c
@@ -47,12 +47,21 @@ struct iguana_info *iguana_coinadd(char *symbol,char *name,cJSON *argjson)
             coin = mycalloc('C',1,sizeof(*coin));
             coin->blockspacesize = IGUANA_MAXPACKETSIZE + 8192;
             coin->blockspace = calloc(1,coin->blockspacesize);
-            coin->peers = calloc(1,sizeof(*coin->peers));
-            for (j=0; j<IGUANA_MAXPEERS; j++)
+            if ( (privatechain= jstr(argjson,"geckochain")) != 0 && privatechain[0] != 0 )
             {
-                coin->peers->active[j].usock = -1;
-                strcpy(coin->peers->active[j].coinname,name);
-                strcpy(coin->peers->active[j].symbol,symbol);
+                myinfo->allcoins_numvirts++;
+                coin->virtualchain = 1;
+            }
+            else
+            {
+                coin->chain = iguana_chainfind((char *)symbol,argjson,1);
+                coin->peers = calloc(1,sizeof(*coin->peers));
+                for (j=0; j<IGUANA_MAXPEERS; j++)
+                {
+                    coin->peers->active[j].usock = -1;
+                    strcpy(coin->peers->active[j].coinname,name);
+                    strcpy(coin->peers->active[j].symbol,symbol);
+                }
             }
             if ( (coin->protocol= juint(argjson,"protocol")) == 0 )
                 coin->protocol = IGUANA_PROTOCOL_BITCOIN;
@@ -61,11 +70,6 @@ struct iguana_info *iguana_coinadd(char *symbol,char *name,cJSON *argjson)
             secp256k1_rangeproof_context_initialize(coin->ctx);
             strcpy(coin->name,name);
             strcpy(coin->symbol,symbol);
-            if ( (privatechain= jstr(argjson,"privatechain")) != 0 && privatechain[0] != 0 )
-            {
-                myinfo->allcoins_numvirts++;
-                coin->virtualchain = 1;
-            } else coin->chain = iguana_chainfind((char *)symbol,argjson,1);
             iguana_initcoin(coin,argjson);
             basilisk_functions(coin,coin->protocol);
             printf("ADD ALLCOINS.(%s) name.(%s) size %ld numvirts.%d\n",symbol,name,sizeof(*coin),myinfo->allcoins_numvirts);
@@ -654,11 +658,26 @@ void iguana_helper(void *arg)
 
 void iguana_callcoinstart(struct iguana_info *coin)
 {
-    struct iguana_bundle *bp; int32_t bundlei; bits256 zero;
+    struct iguana_bundle *bp; int32_t bundlei; bits256 zero; char dirname[512],*symbol;
     iguana_rwiAddrind(coin,0,0,0);
     //for (i=0; i<sizeof(*coin->chain); i++)
     //    printf("%02x",((uint8_t *)coin->chain)[i]);
     char str[65]; printf(" netmagic.%08x init.(%s) maxpeers.%d maxrecvcache.%s services.%llx MAXMEM.%s polltimeout.%d cache.%d pend.(%d -> %d)\n",*(uint32_t *)coin->chain->netmagic,coin->symbol,coin->MAXPEERS,mbstr(str,coin->MAXRECVCACHE),(long long)coin->myservices,mbstr(str,coin->MAXMEM),coin->polltimeout,coin->enableCACHE,coin->startPEND,coin->endPEND);
+    symbol = coin->symbol;
+    sprintf(dirname,"%s/ro",GLOBAL_DBDIR), OS_ensure_directory(dirname);
+    sprintf(dirname,"%s/ro/%s",GLOBAL_DBDIR,symbol), OS_ensure_directory(dirname);
+    sprintf(dirname,"%s/%s",GLOBAL_DBDIR,symbol), OS_ensure_directory(dirname);
+    sprintf(dirname,"%s/purgeable/%s",GLOBAL_DBDIR,symbol), OS_ensure_directory(dirname);
+    sprintf(dirname,"%s/%s/validated",GLOBAL_DBDIR,symbol), OS_ensure_directory(dirname);
+    sprintf(dirname,"%s/%s/accounts",GLOBAL_DBDIR,symbol), OS_ensure_directory(dirname);
+    sprintf(dirname,"%s/%s/spends",GLOBAL_DBDIR,symbol), OS_ensure_directory(dirname);
+    sprintf(dirname,"%s/%s/vouts",GLOBAL_DBDIR,symbol), OS_ensure_directory(dirname);
+    if ( coin->VALIDATEDIR[0] != 0 )
+    {
+        sprintf(dirname,"%s",coin->VALIDATEDIR), OS_ensure_directory(dirname);
+        sprintf(dirname,"%s/%s",coin->VALIDATEDIR,symbol), OS_ensure_directory(dirname);
+    }
+    sprintf(dirname,"%s/%s",GLOBAL_TMPDIR,symbol), OS_ensure_directory(dirname);
     iguana_coinstart(coin,coin->initialheight,coin->mapflags);
     coin->chain->minconfirms = coin->minconfirms;
     coin->started = coin;
@@ -798,11 +817,12 @@ void iguana_nameset(char name[64],char *symbol,cJSON *json)
 struct iguana_info *iguana_setcoin(char *symbol,void *launched,int32_t maxpeers,int64_t maxrecvcache,uint64_t services,int32_t initialheight,int32_t maphash,int32_t minconfirms,int32_t maxrequests,int32_t maxbundles,cJSON *json)
 {
     struct iguana_chain *iguana_createchain(cJSON *json);
-    struct iguana_info *coin; int32_t j,m,mult,maxval,mapflags; char dirname[512],name[64]; cJSON *peers;
+    struct iguana_info *coin; int32_t j,m,mult,maxval,mapflags; char name[64]; cJSON *peers;
     mapflags = IGUANA_MAPRECVDATA | maphash*IGUANA_MAPTXIDITEMS | maphash*IGUANA_MAPPKITEMS | maphash*IGUANA_MAPBLOCKITEMS | maphash*IGUANA_MAPPEERITEMS;
     iguana_nameset(name,symbol,json);
     if ( (coin= iguana_coinfind(symbol)) == 0 )
         coin = iguana_coinadd(symbol,name,json);
+    //printf("ensure directories maxval.%d mult.%d start.%d end.%d\n",maxval,mult,coin->startPEND,coin->endPEND);
     mult = (strcmp("BTC",coin->symbol) != 0) ? 8 : 32;
     maxval = IGUANA_MAXPENDBUNDLES;
     if ( coin->virtualchain == 0 )
@@ -865,21 +885,6 @@ struct iguana_info *iguana_setcoin(char *symbol,void *launched,int32_t maxpeers,
     coin->active = juint(json,"active");
     if ( (coin->minconfirms = minconfirms) == 0 )
         coin->minconfirms = (strcmp(symbol,"BTC") == 0) ? 3 : 10;
-    //printf("ensure directories maxval.%d mult.%d start.%d end.%d\n",maxval,mult,coin->startPEND,coin->endPEND);
-    sprintf(dirname,"%s/ro",GLOBAL_DBDIR), OS_ensure_directory(dirname);
-    sprintf(dirname,"%s/ro/%s",GLOBAL_DBDIR,symbol), OS_ensure_directory(dirname);
-    sprintf(dirname,"%s/%s",GLOBAL_DBDIR,symbol), OS_ensure_directory(dirname);
-    sprintf(dirname,"%s/purgeable/%s",GLOBAL_DBDIR,symbol), OS_ensure_directory(dirname);
-    sprintf(dirname,"%s/%s/validated",GLOBAL_DBDIR,symbol), OS_ensure_directory(dirname);
-    sprintf(dirname,"%s/%s/accounts",GLOBAL_DBDIR,symbol), OS_ensure_directory(dirname);
-    sprintf(dirname,"%s/%s/spends",GLOBAL_DBDIR,symbol), OS_ensure_directory(dirname);
-    sprintf(dirname,"%s/%s/vouts",GLOBAL_DBDIR,symbol), OS_ensure_directory(dirname);
-    if ( coin->VALIDATEDIR[0] != 0 )
-    {
-        sprintf(dirname,"%s",coin->VALIDATEDIR), OS_ensure_directory(dirname);
-        sprintf(dirname,"%s/%s",coin->VALIDATEDIR,symbol), OS_ensure_directory(dirname);
-    }
-    sprintf(dirname,"%s/%s",GLOBAL_TMPDIR,symbol), OS_ensure_directory(dirname);
     if ( coin->chain == 0 && (coin->chain= iguana_createchain(json)) == 0 )
     {
         printf("cant initialize chain.(%s)\n",jstr(json,0));
diff --git a/iguana/iguana_accept.c b/iguana/iguana_accept.c
index 04ee6ebaa..0d513f12f 100755
--- a/iguana/iguana_accept.c
+++ b/iguana/iguana_accept.c
@@ -286,9 +286,24 @@ int32_t iguana_inv2packet(uint8_t *serialized,int32_t maxsize,int32_t type,bits2
     return(len - sizeof(struct iguana_msghdr));
 }
 
+int32_t iguana_headerget(struct iguana_info *coin,uint8_t *serialized,int32_t maxsize,struct iguana_block *block)
+{
+    bits256 checkhash2; struct iguana_msgblock msgB; int32_t len = 0;
+    iguana_blockunconv(coin->chain->zcash,coin->chain->auxpow,&msgB,block,1);
+    if ( (len= iguana_rwblock(coin->symbol,coin->chain->zcash,coin->chain->auxpow,coin->chain->hashalgo,1,&checkhash2,&serialized[sizeof(struct iguana_msghdr)],&msgB,(int32_t)(maxsize-sizeof(struct iguana_msghdr)))) < 0 )
+        return(-1);
+    if ( bits256_cmp(checkhash2,block->RO.hash2) != 0 )
+    {
+        char str[65],str2[65];
+        printf("iguana_peerhdrrequest blockhash.%d error (%s) vs (%s)\n",block->height,bits256_str(str,checkhash2),bits256_str(str2,block->RO.hash2));
+        return(-1);
+    }
+    return(len);
+}
+
 int32_t iguana_peerhdrrequest(struct iguana_info *coin,uint8_t *serialized,int32_t maxsize,struct iguana_peer *addr,bits256 hash2)
 {
-    int32_t len=0,i,flag=0,height,hdrsi,bundlei,bundlesize,firstvout,retval=-1; struct iguana_block *block; struct iguana_msgblock msgB; bits256 checkhash2; struct iguana_bundle *bp;
+    int32_t len=0,i,flag=0,height,n,hdrsi,bundlei,bundlesize,firstvout,retval=-1; struct iguana_block *block; struct iguana_bundle *bp;
     if ( (firstvout= iguana_unspentindfind(coin,0,0,0,0,&height,hash2,0,coin->bundlescount-1)) != 0 )
     {
         bundlesize = coin->chain->bundlesize;
@@ -300,15 +315,12 @@ int32_t iguana_peerhdrrequest(struct iguana_info *coin,uint8_t *serialized,int32
             {
                 if ( (block= bp->blocks[i]) != 0 )
                 {
-                    iguana_blockunconv(coin->chain->zcash,coin->chain->auxpow,&msgB,block,1);
-                    len += iguana_rwblock(coin->symbol,coin->chain->zcash,coin->chain->auxpow,coin->chain->hashalgo,1,&checkhash2,&serialized[sizeof(struct iguana_msghdr) + len],&msgB,(int32_t)(maxsize-len-sizeof(struct iguana_msghdr)));
-                    flag++;
-                    if ( bits256_cmp(checkhash2,block->RO.hash2) != 0 )
+                    if ( (n= iguana_headerget(coin,&serialized[len],maxsize-len,block)) < 0 )
                     {
-                        char str[65],str2[65];
-                        printf("iguana_peerhdrrequest blockhash.%d error (%s) vs (%s)\n",height+i,bits256_str(str,checkhash2),bits256_str(str2,block->RO.hash2));
-                        return(-1);
+                        printf("%s error getting header ht.%d\n",coin->symbol,block->height);
+                        continue;
                     }
+                    len += n;
                 } else printf("cant find block at ht.%d\n",height+i);
             }
         }
diff --git a/iguana/iguana_bundles.c b/iguana/iguana_bundles.c
index 53792cca1..967cb56fc 100755
--- a/iguana/iguana_bundles.c
+++ b/iguana/iguana_bundles.c
@@ -217,12 +217,12 @@ int32_t iguana_bundlehash2add(struct iguana_info *coin,struct iguana_block **blo
         }
         if ( bits256_nonz(bp->hashes[bundlei]) != 0 && bits256_cmp(bp->hashes[bundlei],block->RO.hash2) != 0 )
         {
-            char str[65],str2[65];
-            printf("bp.[%d]->hashes[%d] mismatch %s != %s%s\n",bp->hdrsi,bundlei,bits256_str(str,bp->hashes[bundlei]),bits256_str(str2,block->RO.hash2),block->mainchain?".main":"");
+            //char str[65],str2[65];
+            //printf("B bp.[%d]->hashes[%d] mismatch %s != %s%s\n",bp->hdrsi,bundlei,bits256_str(str,bp->hashes[bundlei]),bits256_str(str2,block->RO.hash2),block->mainchain?".main":"");
             iguana_blockunmark(coin,block,bp,bundlei,1);
             bp->blocks[bundlei] = 0;
             //if ( block->mainchain != 0 )
-              //  bp->hashes[bundlei] = block->RO.hash2;
+            //    bp->hashes[bundlei] = block->RO.hash2;
             
             return(-1);
         }
@@ -805,6 +805,7 @@ int32_t iguana_bundleready(struct iguana_info *coin,struct iguana_bundle *bp,int
                     if ( 0 && requiredflag != 0 )
                         printf("not ready altpath.(%d %d %d %d %d) [%d:%d]\n",block->txvalid == 0,block->fpipbits == 0 ,block->fpos < 0,(bp->bundleheight+i > 0 && bits256_nonz(block->RO.prev_block) == 0),iguana_blockvalidate(coin,&valid,block,1) < 0,bp->hdrsi,i);
                 }
+                else printf("cant find (%s)\n",fname);
             }
         }
         else
@@ -819,6 +820,7 @@ int32_t iguana_bundleready(struct iguana_info *coin,struct iguana_bundle *bp,int
             }
         }
     }
+    printf("ready.%d\n",ready);
     return(ready);
 }
 
diff --git a/iguana/iguana_chains.c b/iguana/iguana_chains.c
index 8bb682685..4d4d0db35 100755
--- a/iguana/iguana_chains.c
+++ b/iguana/iguana_chains.c
@@ -287,6 +287,7 @@ void iguana_chainparms(struct iguana_chain *chain,cJSON *argjson)
 {
     extern char Userhome[];
     char *path,conf[512],*hexstr,genesisblock[1024]; uint16_t port; cJSON *rpair,*genesis,*rewards,*item; int32_t i,n,m; uint32_t nBits; uint8_t tmp[4];
+    printf("chainparams.(%s)\n",jprint(argjson,0));
     if ( strcmp(chain->symbol,"NXT") != 0 )
     {
         if ( strcmp(chain->symbol,"BTCD") == 0 )
@@ -294,7 +295,8 @@ void iguana_chainparms(struct iguana_chain *chain,cJSON *argjson)
         if ( (chain->minoutput= j64bits(argjson,"minoutput")) == 0 )
             chain->minoutput = 10000;
         chain->minconfirms = juint(argjson,"minconfirms");
-        chain->estblocktime = juint(argjson,"estblocktime");
+        if ( (chain->estblocktime= juint(argjson,"estblocktime")) == 0 )
+            chain->estblocktime = juint(argjson,"blocktime");
         path = jstr(argjson,"path");
         if ( jobj(argjson,"conf") == 0 )
             conf[0] = 0;
@@ -347,10 +349,7 @@ void iguana_chainparms(struct iguana_chain *chain,cJSON *argjson)
         if ( (hexstr= jstr(argjson,"wifval")) != 0 && strlen(hexstr) == 2 )
             decode_hex((uint8_t *)&chain->wiftype,1,hexstr);
         if ( (hexstr= jstr(argjson,"netmagic")) != 0 && strlen(hexstr) == 8 )
-        {
             decode_hex((uint8_t *)chain->netmagic,4,hexstr);
-            printf("NETMAGIC.(%s) -> %08x\n",hexstr,*(uint32_t *)chain->netmagic);
-        }
         if ( (hexstr= jstr(argjson,"unitval")) != 0 && strlen(hexstr) == 2 )
             decode_hex((uint8_t *)&chain->unitval,1,hexstr);
         if ( (hexstr= jstr(argjson,"alertpubkey")) != 0 && (strlen(hexstr)>>1) <= sizeof(chain->alertpubkey) )
@@ -371,8 +370,10 @@ void iguana_chainparms(struct iguana_chain *chain,cJSON *argjson)
                 ((uint8_t *)&nBits)[1] = tmp[2];
                 ((uint8_t *)&nBits)[2] = tmp[1];
                 ((uint8_t *)&nBits)[3] = tmp[0];
-            }
-            else nBits = 0x1e00ffff;
+            } else nBits = 0x1e00ffff;
+            chain->nBits = nBits;
+            chain->unitval = (nBits >> 24);
+            printf("NETMAGIC %08x unitval.%02x nBits.%08x\n",*(uint32_t *)chain->netmagic,chain->unitval,chain->nBits);
             chain->genesishash2 = iguana_chaingenesis(chain->symbol,chain->zcash,chain->auxpow,chain->hashalgo,chain->genesishash2,genesisblock,jstr(genesis,"hashalgo"),juint(genesis,"version"),juint(genesis,"timestamp"),nBits,juint(genesis,"nonce"),jbits256(genesis,"merkle_root"));
             memcpy(chain->genesis_hashdata,chain->genesishash2.bytes,32);
             char str[65]; init_hexbytes_noT(str,chain->genesis_hashdata,32);
@@ -381,6 +382,17 @@ void iguana_chainparms(struct iguana_chain *chain,cJSON *argjson)
         }
         else
         {
+            if ( jstr(argjson,"nBits") != 0 )
+            {
+                decode_hex((void *)&tmp,sizeof(tmp),jstr(argjson,"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;
+            chain->nBits = nBits;
+            chain->unitval = (nBits >> 24);
+            printf("NETMAGIC -> %08x unitval.%02x (%s) -> tmp.%08x nBits.%08x\n",*(uint32_t *)chain->netmagic,chain->unitval,jstr(argjson,"nBits"),*(uint32_t *)tmp,chain->nBits);
             if ( (hexstr= jstr(argjson,"genesisblock")) != 0 )
             {
                 uint8_t hexbuf[1024],*ptr,*data; int32_t datalen,hdrsize;
diff --git a/iguana/iguana_init.c b/iguana/iguana_init.c
index 00fe88792..f74adac36 100755
--- a/iguana/iguana_init.c
+++ b/iguana/iguana_init.c
@@ -104,7 +104,7 @@ bits256 iguana_genesis(struct iguana_info *coin,struct iguana_chain *chain)
     auxback = coin->chain->auxpow, coin->chain->auxpow = 0;
     iguana_rwblock(coin->symbol,coin->chain->zcash,coin->chain->auxpow,coin->chain->hashalgo,0,&hash2,buf,&msg,sizeof(buf));
     coin->chain->auxpow = auxback;
-    if  ( coin->virtualchain != 0 || coin->MAXPEERS > 1 )
+    if  ( coin->virtualchain == 0 && coin->MAXPEERS > 1 )
     {
         if ( memcmp(hash2.bytes,chain->genesis_hashdata,sizeof(hash2)) != 0 )
         {
@@ -127,9 +127,10 @@ bits256 iguana_genesis(struct iguana_info *coin,struct iguana_chain *chain)
         ptr->mainchain = 1;
         ptr->height = 0;
         //coin->blocks.RO[0] = block.RO;
-        if ( (height= iguana_chainextend(coin,ptr)) == 0 )
+        if ( coin->virtualchain != 0 || (height= iguana_chainextend(coin,ptr)) == 0 )
         {
             iguana_blockzcopy(coin->chain->zcash,block,ptr);
+            iguana_blockzcopy(coin->chain->zcash,(void *)&coin->blocks.hwmchain,ptr);
             printf("size.%d genesis block PoW %f ptr %f\n",block->RO.allocsize,block->PoW,ptr->PoW);
             coin->blocks.recvblocks = coin->blocks.issuedblocks = 1;
         } else printf("genesis block doesnt validate for %s ht.%d\n",coin->symbol,height);
@@ -520,11 +521,14 @@ struct iguana_info *iguana_coinstart(struct iguana_info *coin,int32_t initialhei
     int32_t bundlei = -2;
     static const bits256 zero;
     iguana_bundlecreate(coin,&bundlei,0,*(bits256 *)coin->chain->genesis_hashdata,zero,1);
-    _iguana_chainlink(coin,iguana_blockfind("genesis",coin,*(bits256 *)coin->chain->genesis_hashdata));
-    if ( coin->blocks.hwmchain.height != 0 || memcmp(coin->blocks.hwmchain.RO.hash2.bytes,coin->chain->genesis_hashdata,sizeof(coin->chain->genesis_hashdata)) != 0 )
+    if ( coin->virtualchain == 0 )
     {
-        char str[65]; printf("%s genesis values mismatch hwmheight.%d %.15f %.15f %s\n",coin->name,coin->blocks.hwmchain.height,coin->blocks.hwmchain.PoW,coin->blocks.hwmchain.PoW,bits256_str(str,coin->blocks.hwmchain.RO.hash2));
-        getchar();
+        _iguana_chainlink(coin,iguana_blockfind("genesis",coin,*(bits256 *)coin->chain->genesis_hashdata));
+        if ( coin->blocks.hwmchain.height != 0 || memcmp(coin->blocks.hwmchain.RO.hash2.bytes,coin->chain->genesis_hashdata,sizeof(coin->chain->genesis_hashdata)) != 0 )
+        {
+            char str[65]; printf("%s genesis values mismatch hwmheight.%d %.15f %.15f %s\n",coin->name,coin->blocks.hwmchain.height,coin->blocks.hwmchain.PoW,coin->blocks.hwmchain.PoW,bits256_str(str,coin->blocks.hwmchain.RO.hash2));
+            getchar();
+        }
     }
     memset(&lastbundle,0,sizeof(lastbundle));
     if ( coin->peers == 0 )
diff --git a/iguana/iguana_json.c b/iguana/iguana_json.c
index b33d7fa53..cba3edf6c 100755
--- a/iguana/iguana_json.c
+++ b/iguana/iguana_json.c
@@ -799,7 +799,7 @@ char *hmac_dispatch(char *(*hmacfunc)(char *dest,char *key,int32_t key_size,char
 
 char *hash_dispatch(void (*hashfunc)(char *hexstr,uint8_t *buf,uint8_t *msg,int32_t len),char *name,char *message)
 {
-    char hexstr[16384]; uint8_t databuf[8192]; cJSON *json;
+    char hexstr[65537]; uint8_t databuf[32768]; cJSON *json;
     if ( message != 0 && message[0] != 0 )
     {
         memset(hexstr,0,sizeof(hexstr));
diff --git a/iguana/iguana_ramchain.c b/iguana/iguana_ramchain.c
index a57720e08..35fcfc307 100755
--- a/iguana/iguana_ramchain.c
+++ b/iguana/iguana_ramchain.c
@@ -101,7 +101,7 @@ int32_t iguana_peerfname(struct iguana_info *coin,int32_t *hdrsip,char *dirname,
         bp = 0, bundlei = -2;
         if ( bits256_nonz(prevhash2) == 0 || (bp= iguana_bundlefind(coin,&bp,&bundlei,prevhash2)) == 0 || bundlei >= coin->chain->bundlesize-1 )
         {
-            if ( 0 && dispflag != 0 )
+            //if ( 0 && dispflag != 0 )
                 printf("iguana_peerfname error finding.(%s) spec.%p bp.%p\n",bits256_str(str,hash2),bp!=0?bp->speculative:0,bp);
             return(-2);
         }
@@ -1050,7 +1050,8 @@ long iguana_ramchain_save(struct iguana_info *coin,RAMCHAIN_FUNC,uint32_t ipbits
 #endif
     if ( (fp= fopen(fname,"wb")) == 0 )
         printf("iguana_ramchain_save: couldnt create.(%s) errno.%d\n",fname,errno);
-    else coin->peers->numfiles++;
+    else if ( coin->peers != 0 )
+        coin->peers->numfiles++;
     if ( fp != 0 )
     {
         fpos = ftell(fp);
@@ -2603,7 +2604,7 @@ int32_t iguana_bundlesaveHT(struct iguana_info *coin,struct OS_memspace *mem,str
         {
             for (j=starti; j<=endi; j++)
             {
-                if ( iguana_peerfname(coin,&hdrsi,GLOBAL_TMPDIR,fname,0,bp->hashes[j],zero,1,1) >= 0 )
+                if ( iguana_peerfname(coin,&hdrsi,GLOBAL_TMPDIR,fname,0,bp->hashes[j],zero,1,1) >= 0 && coin->peers != 0 )
                     coin->peers->numfiles -= OS_removefile(fname,0);
                 else printf("error removing.(%s)\n",fname);
             }
diff --git a/iguana/iguana_stake.c b/iguana/iguana_stake.c
index a3ab90df8..fe36b9429 100644
--- a/iguana/iguana_stake.c
+++ b/iguana/iguana_stake.c
@@ -87,8 +87,7 @@ uint32_t iguana_targetbits(struct iguana_info *coin,struct iguana_block *hwmchai
             {
                 if ( (gap= prev->RO.timestamp - prev2->RO.timestamp) < 0 )
                     gap = targetspacing;
-                // ppcoin: target change every block, retarget with exponential moving toward target spacing
-                //printf("MSPACING.%d gap.%d\n",NINTERVAL_MSPACING,gap);
+                //printf("nBits.%08x gap.%d (%u - %u)\n",prev->RO.bits,gap,prev->RO.timestamp,prev2->RO.timestamp);
                 targetval = mpz_muldivcmp(bits256_from_compact(prev->RO.bits),mspacing + (gap << 1),pspacing,targetval);
             }
         }
diff --git a/iguana/iguana_tx.c b/iguana/iguana_tx.c
index 3eb558eab..a26ac244f 100755
--- a/iguana/iguana_tx.c
+++ b/iguana/iguana_tx.c
@@ -354,7 +354,7 @@ cJSON *iguana_blockjson(struct iguana_info *coin,struct iguana_block *block,int3
     jaddnum(json,"valid",block->valid);
     jaddnum(json,"txn_count",block->RO.txn_count);
     
-    jaddnum(json,"bits",block->RO.bits);
+    jaddnum(json,"nBits",block->RO.bits);
     serialized[0] = ((uint8_t *)&block->RO.bits)[3];
     serialized[1] = ((uint8_t *)&block->RO.bits)[2];
     serialized[2] = ((uint8_t *)&block->RO.bits)[1];
diff --git a/iguana/tests/new b/iguana/tests/new
index 1e6312fc9..3d15a1c1d 100755
--- a/iguana/tests/new
+++ b/iguana/tests/new
@@ -1 +1 @@
-curl --url "http://127.0.0.1:7778" --data "{\"agent\":\"basilisk\",\"method\":\"newprivatechain\",\"vals\":{\"chain\":\"InstantDEX\",\"symbol\":\"DEX\"}}"
+curl --url "http://127.0.0.1:7778" --data "{\"agent\":\"basilisk\",\"method\":\"newgeckochain\",\"vals\":{\"blocktime\":0,\"chain\":\"InstantDEX\",\"symbol\":\"DEX\"}}"
diff --git a/includes/iguana_apideclares.h b/includes/iguana_apideclares.h
index ff0e1a2f8..a480aad85 100755
--- a/includes/iguana_apideclares.h
+++ b/includes/iguana_apideclares.h
@@ -21,12 +21,15 @@ INT_AND_ARRAY(basilisk,result,basilisktag,vals);
 HASH_ARRAY_STRING(basilisk,geckogenesis,pubkey,vals,hexstr);
 
 HASH_ARRAY_STRING(basilisk,newgeckochain,pubkey,vals,hexstr);
+HASH_ARRAY_STRING(basilisk,geckoheaders,pubkey,vals,hexstr);
+HASH_ARRAY_STRING(basilisk,geckoblock,pubkey,vals,hexstr);
+HASH_ARRAY_STRING(basilisk,geckotx,pubkey,vals,hexstr);
+HASH_ARRAY_STRING(basilisk,geckoget,pubkey,vals,hexstr);
+
 HASH_ARRAY_STRING(basilisk,addrelay,pubkey,vals,hexstr);
 HASH_ARRAY_STRING(basilisk,dispatch,pubkey,vals,hexstr);
 HASH_ARRAY_STRING(basilisk,publish,pubkey,vals,hexstr);
 HASH_ARRAY_STRING(basilisk,subscribe,pubkey,vals,hexstr);
-HASH_ARRAY_STRING(basilisk,geckotx,pubkey,vals,hexstr);
-HASH_ARRAY_STRING(basilisk,geckoblock,pubkey,vals,hexstr);
 HASH_ARRAY_STRING(basilisk,forward,pubkey,vals,hexstr);
 HASH_ARRAY_STRING(basilisk,mailbox,pubkey,vals,hexstr);
 
diff --git a/includes/iguana_funcs.h b/includes/iguana_funcs.h
index f778e50a0..aa8a797ce 100755
--- a/includes/iguana_funcs.h
+++ b/includes/iguana_funcs.h
@@ -486,7 +486,7 @@ void iguana_blockzcopy(uint8_t zcash,struct iguana_block *dest,struct iguana_blo
 int32_t iguana_blocksizecheck(char *debugstr,uint8_t zcash,struct iguana_block *block);
 void basilisk_miner(struct supernet_info *myinfo,struct iguana_info *btcd,struct iguana_info *virt,int32_t maxmillis,char *mineraddr);
 int32_t bitcoin_pubkeyspend(uint8_t *script,int32_t n,uint8_t pubkey[66]);
-int32_t basilisk_blocksubmit(struct supernet_info *myinfo,struct iguana_info *virt,char *blockstr);
+int32_t basilisk_blocksubmit(struct supernet_info *myinfo,struct iguana_info *virt,char *blockstr,bits256 hash2);
 struct supernet_info *SuperNET_MYINFO(char *passphrase);
 bits256 calc_categoryhashes(bits256 *subhashp,char *category,char *subcategory);
 struct gecko_chain *category_find(bits256 categoryhash,bits256 subhash);
@@ -500,6 +500,8 @@ char *SuperNET_keysinit(struct supernet_info *myinfo,char *argjsonstr);
 char *SuperNET_parser(struct supernet_info *myinfo,char *agentstr,char *method,cJSON *json,char *remoteaddr);
 char *SuperNET_htmlstr(char *fname,char *htmlstr,int32_t maxsize,char *agentstr);
 void SuperNET_setkeys(struct supernet_info *myinfo,void *pass,int32_t passlen,int32_t dosha256);
+int32_t iguana_headerget(struct iguana_info *coin,uint8_t *serialized,int32_t maxsize,struct iguana_block *block);
+int32_t iguana_bundlefinalize(struct iguana_info *coin,struct iguana_bundle *bp,struct OS_memspace *mem,struct OS_memspace *memB);
 
 #include "../includes/iguana_api.h"