diff --git a/iguana/exchanges/LP_nativeDEX.c b/iguana/exchanges/LP_nativeDEX.c
index b59cf9123..890d65174 100644
--- a/iguana/exchanges/LP_nativeDEX.c
+++ b/iguana/exchanges/LP_nativeDEX.c
@@ -21,6 +21,7 @@
 // sign critical api calls
 // SPV height errors, autodetect and fix
 // stats
+// deal with offline pubkeys, reputations, etc.
 // dPoW security -> 2: KMD notarized, 3: BTC notarized
 // add interest to KMD withdraw
 // verify portfolio, pricearray, withdraw
diff --git a/iguana/exchanges/LP_ordermatch.c b/iguana/exchanges/LP_ordermatch.c
index 7c2bc6f69..414e7cf51 100644
--- a/iguana/exchanges/LP_ordermatch.c
+++ b/iguana/exchanges/LP_ordermatch.c
@@ -443,9 +443,9 @@ int32_t LP_nanobind(void *ctx,char *pairstr)
     return(pairsock);
 }
 
-int32_t LP_nearest_utxovalue(struct iguana_info *coin,struct LP_address_utxo **utxos,int32_t n,uint64_t targetval)
+int32_t LP_nearest_utxovalue(struct iguana_info *coin,char *coinaddr,struct LP_address_utxo **utxos,int32_t n,uint64_t targetval)
 {
-    int32_t i,mini = -1; struct LP_address_utxo *up; struct electrum_info *backupep=0,*ep; char str[65]; int64_t dist; uint64_t mindist = (1LL << 60);
+    int32_t i,oldht,mini = -1; struct LP_address_utxo *up; struct electrum_info *backupep=0,*ep; char str[65]; int64_t dist; uint64_t mindist = (1LL << 60);
     if ( (ep= coin->electrum) != 0 )
     {
         if ( (backupep= ep->prev) == 0 )
@@ -462,15 +462,24 @@ int32_t LP_nearest_utxovalue(struct iguana_info *coin,struct LP_address_utxo **u
             {
                 if ( coin->electrum != 0 )
                 {
-                    if (up->SPV <= 0 )
+                    if ( up->SPV == 0 || up->SPV == -1 )
                         up->SPV = LP_merkleproof(coin,backupep,up->U.txid,up->U.height);
-                    if ( up->SPV < 0 )
+                    if ( up->SPV == 0 || up->SPV == -1 )
                     {
                         printf("SPV failure for %s %s\n",coin->symbol,bits256_str(str,up->U.txid));
+                        if ( up->SPV == -1 )
+                        {
+                            oldht = up->U.height;
+                            LP_txheight_check(coin,coinaddr,up);
+                            if ( oldht != up->U.height )
+                                up->SPV = LP_merkleproof(coin,backupep,up->U.txid,up->U.height);
+                            if ( up->SPV == -1 )
+                                up->SPV = -2;
+                        }
                         continue;
                     } else printf("%s %s: SPV.%d\n",coin->symbol,bits256_str(str,up->U.txid),up->SPV);
                 }
-                if ( dist >= 0 && dist < mindist )
+                if ( up->SPV > 0 && dist >= 0 && dist < mindist )
                 {
                     //printf("(%.8f %.8f %.8f).%d ",dstr(up->U.value),dstr(dist),dstr(mindist),mini);
                     mini = i;
@@ -507,7 +516,7 @@ struct LP_utxoinfo *LP_address_utxopair(int32_t iambob,struct LP_address_utxo **
                 printf("targetval %.8f vol %.8f price %.8f txfee %.8f %s\n",dstr(targetval),relvolume,price,dstr(txfee),coinaddr);
             }
             mini = -1;
-            if ( targetval != 0 && (mini= LP_nearest_utxovalue(coin,utxos,m,targetval)) >= 0 )
+            if ( targetval != 0 && (mini= LP_nearest_utxovalue(coin,coinaddr,utxos,m,targetval)) >= 0 )
             {
                 up = utxos[mini];
                 utxos[mini] = 0;
@@ -516,7 +525,7 @@ struct LP_utxoinfo *LP_address_utxopair(int32_t iambob,struct LP_address_utxo **
                 if ( (double)up->U.value/targetval < LP_MINVOL-1 )
 
                 {
-                    if ( (mini= LP_nearest_utxovalue(coin,utxos,m,targetval2 * 1.01)) >= 0 )
+                    if ( (mini= LP_nearest_utxovalue(coin,coinaddr,utxos,m,targetval2 * 1.01)) >= 0 )
                     {
                         if ( up != 0 && (up2= utxos[mini]) != 0 )
                         {
diff --git a/iguana/exchanges/LP_socket.c b/iguana/exchanges/LP_socket.c
index 99d707ad4..afca7e887 100644
--- a/iguana/exchanges/LP_socket.c
+++ b/iguana/exchanges/LP_socket.c
@@ -457,7 +457,7 @@ cJSON *electrum_address_subscribe(char *symbol,struct electrum_info *ep,cJSON **
 
 cJSON *electrum_address_gethistory(char *symbol,struct electrum_info *ep,cJSON **retjsonp,char *addr)
 {
-    struct LP_transaction *tx; cJSON *retjson,*txobj,*item; int32_t i,n,height; bits256 txid; struct iguana_info *coin = LP_coinfind(symbol);
+    char str[65]; struct LP_transaction *tx; cJSON *retjson,*txobj,*item; int32_t i,n,height; bits256 txid; struct iguana_info *coin = LP_coinfind(symbol);
     retjson = electrum_strarg(symbol,ep,retjsonp,"blockchain.address.get_history",addr,ELECTRUM_TIMEOUT);
     //printf("history.(%s)\n",jprint(retjson,0));
     if ( retjson != 0 && (n= cJSON_GetArraySize(retjson)) > 0 )
@@ -478,6 +478,8 @@ cJSON *electrum_address_gethistory(char *symbol,struct electrum_info *ep,cJSON *
                 {
                     if ( (tx= LP_transactionfind(coin,txid)) != 0 )
                     {
+                        if ( tx->height > 0 && tx->height != height )
+                            printf("update %s height.%d <- %d\n",bits256_str(str,txid),tx->height,height);
                         tx->height = height;
                         LP_address_utxoadd(coin,addr,txid,0,0,height,-1);
                     }
@@ -488,6 +490,17 @@ cJSON *electrum_address_gethistory(char *symbol,struct electrum_info *ep,cJSON *
     return(retjson);
 }
 
+int32_t LP_txheight_check(struct iguana_info *coin,char *coinaddr,struct LP_address_utxo *up)
+{
+    cJSON *retjson;
+    if ( coin->electrum != 0 )
+    {
+        if ( (retjson= electrum_address_gethistory(coin->symbol,coin->electrum,&retjson,coinaddr)) != 0 )
+            free_json(retjson);
+    }
+    return(0);
+}
+
 cJSON *electrum_address_getmempool(char *symbol,struct electrum_info *ep,cJSON **retjsonp,char *addr)
 {
     cJSON *retjson; struct iguana_info *coin = LP_coinfind(symbol);
diff --git a/iguana/exchanges/LP_utxo.c b/iguana/exchanges/LP_utxo.c
index cdbf09bec..0a0727038 100644
--- a/iguana/exchanges/LP_utxo.c
+++ b/iguana/exchanges/LP_utxo.c
@@ -204,8 +204,12 @@ int32_t LP_address_utxoadd(struct iguana_info *coin,char *coinaddr,bits256 txid,
             if ( vout == up->U.vout && bits256_cmp(up->U.txid,txid) == 0 )
             {
                 flag = 1;
-                if ( up->U.height <= 0 && height > 0 && up->U.height != height )
+                if ( height > 0 && up->U.height != height )
+                {
+                    if ( up->U.height > 0 )
+                        printf("update %s/v%d up->U.height %d <- %d\n",bits256_str(str,up->U.txid),up->U.vout,up->U.height,height);
                     up->U.height = height, flag |= 2;
+                }
                 if ( spendheight > 0 && up->spendheight != spendheight )
                     up->spendheight = spendheight, flag |= 4;
                 if ( up->U.value == 0 && up->U.value != value )
@@ -346,7 +350,7 @@ int32_t LP_merkleproof(struct iguana_info *coin,struct electrum_info *ep,bits256
 
 cJSON *LP_address_utxos(struct iguana_info *coin,char *coinaddr,int32_t electrumret)
 {
-    cJSON *array,*item; int32_t n; uint64_t total; struct LP_address *ap=0,*atmp; struct LP_address_utxo *up,*tmp; cJSON *txobj; struct electrum_info *ep,*backupep=0;
+    cJSON *array,*item; int32_t oldht,n; uint64_t total; struct LP_address *ap=0,*atmp; struct LP_address_utxo *up,*tmp; cJSON *txobj; struct electrum_info *ep,*backupep=0;
     array = cJSON_CreateArray();
     if ( coinaddr != 0 && coinaddr[0] != 0 )
     {
@@ -371,11 +375,22 @@ cJSON *LP_address_utxos(struct iguana_info *coin,char *coinaddr,int32_t electrum
                     }
                     if ( up->spendheight <= 0 )
                     {
-                        if ( backupep != 0 && up->SPV <= 0 )
+                        if ( backupep != 0 && (up->SPV == 0 || up->SPV == -1) )
+                        {
                             up->SPV = LP_merkleproof(coin,backupep,up->U.txid,up->U.height);
-                        jaddi(array,LP_address_item(coin,up,electrumret));
-                        n++;
-                        total += up->U.value;
+                            oldht = up->U.height;
+                            LP_txheight_check(coin,coinaddr,up);
+                            if ( oldht != up->U.height )
+                                up->SPV = LP_merkleproof(coin,backupep,up->U.txid,up->U.height);
+                            if ( up->SPV == -1 )
+                                up->SPV = -2;
+                        }
+                        if ( up->SPV > 0 )
+                        {
+                            jaddi(array,LP_address_item(coin,up,electrumret));
+                            n++;
+                            total += up->U.value;
+                        }
                     }
                     //printf("new array %s\n",jprint(array,0));
                 }