diff --git a/src/komodo.h b/src/komodo.h
index 909f00a53..ee0a27b39 100644
--- a/src/komodo.h
+++ b/src/komodo.h
@@ -324,7 +324,8 @@ void komodo_stateupdate(int32_t height,uint8_t notarypubs[][33],uint8_t numnotar
 
 int32_t komodo_voutupdate(int32_t *isratificationp,int32_t notaryid,uint8_t *scriptbuf,int32_t scriptlen,int32_t height,uint256 txhash,int32_t i,int32_t j,uint64_t *voutmaskp,int32_t *specialtxp,int32_t *notarizedheightp,uint64_t value,int32_t notarized,uint64_t signedmask)
 {
-    static uint256 zero; int32_t opretlen,nid,k,len = 0; uint256 kmdtxid,desttxid; uint8_t crypto777[33]; struct komodo_state *sp; char symbol[16],dest[16];
+    static uint256 zero; static FILE *fp;
+    int32_t opretlen,nid,k,len = 0; uint256 kmdtxid,desttxid; uint8_t crypto777[33]; struct komodo_state *sp; char symbol[16],dest[16];
     if ( (sp= komodo_stateptr(symbol,dest)) == 0 )
         return(-1);
     if ( scriptlen == 35 && scriptbuf[0] == 33 && scriptbuf[34] == 0xac )
@@ -375,7 +376,7 @@ int32_t komodo_voutupdate(int32_t *isratificationp,int32_t notaryid,uint8_t *scr
         if ( j == 1 && opretlen >= 32*2+4 && strcmp(ASSETCHAINS_SYMBOL[0]==0?"KMD":ASSETCHAINS_SYMBOL,(char *)&scriptbuf[len+32*2+4]) == 0 )
         {
             len += iguana_rwbignum(0,&scriptbuf[len],32,(uint8_t *)&kmdtxid);
-            len += iguana_rwnum(0,&scriptbuf[len],4,(uint8_t *)notarizedheightp);
+            len += iguana_rwnum(0,&scriptbuf[len],sizeof(*notarizedheightp),(uint8_t *)notarizedheightp);
             len += iguana_rwbignum(0,&scriptbuf[len],32,(uint8_t *)&desttxid);
             if ( notarized != 0 && *notarizedheightp > sp->NOTARIZED_HEIGHT && *notarizedheightp < height )
             {
@@ -386,10 +387,27 @@ int32_t komodo_voutupdate(int32_t *isratificationp,int32_t notaryid,uint8_t *scr
                 len += 4;
                 if ( ASSETCHAINS_SYMBOL[0] == 0 )
                     printf("%s ht.%d NOTARIZED.%d %s.%s %sTXID.%s (%s) lens.(%d %d)\n",ASSETCHAINS_SYMBOL,height,*notarizedheightp,ASSETCHAINS_SYMBOL[0]==0?"KMD":ASSETCHAINS_SYMBOL,kmdtxid.ToString().c_str(),ASSETCHAINS_SYMBOL[0]==0?"BTC":"KMD",desttxid.ToString().c_str(),(char *)&scriptbuf[len],opretlen,len);
-                if ( ASSETCHAINS_SYMBOL[0] == 0 && opretlen > len && scriptbuf[len] == 'A' )
+                if ( ASSETCHAINS_SYMBOL[0] == 0 )
                 {
-                    printf("Found extradata.[%d] %d - %d\n",opretlen-len,opretlen,len);
-                    komodo_stateupdate(height,0,0,0,txhash,0,0,0,0,0,0,value,&scriptbuf[len],opretlen-len,j);
+                    if ( signedfp == 0 )
+                    {
+                        char fname[512];
+                        komodo_statefname(fname,"","signedmasks");
+                        if ( (signedfp= fopen(fname,"rb+")) == 0 )
+                            signedfp = fopen(fname,"wb");
+                        else fseek(signedfp,0,SEEK_END);
+                    }
+                    if ( signedfp != 0 )
+                    {
+                        fwrite(&height,1,sizeof(height),signedfp);
+                        fwrite(&signedmask,1,sizeof(signedmask),signedfp);
+                        fflush(signedfp);
+                    }
+                    if ( opretlen > len && scriptbuf[len] == 'A' )
+                    {
+                        printf("Found extradata.[%d] %d - %d\n",opretlen-len,opretlen,len);
+                        komodo_stateupdate(height,0,0,0,txhash,0,0,0,0,0,0,value,&scriptbuf[len],opretlen-len,j);
+                    }
                 }
             } else printf("notarized.%d %llx reject ht.%d NOTARIZED.%d %s.%s DESTTXID.%s (%s)\n",notarized,(long long)signedmask,height,*notarizedheightp,ASSETCHAINS_SYMBOL[0]==0?"KMD":ASSETCHAINS_SYMBOL,kmdtxid.ToString().c_str(),desttxid.ToString().c_str(),(char *)&scriptbuf[len]);
         }
diff --git a/src/komodo_bitcoind.h b/src/komodo_bitcoind.h
index dd4eda01a..21a2340a5 100644
--- a/src/komodo_bitcoind.h
+++ b/src/komodo_bitcoind.h
@@ -529,6 +529,14 @@ int8_t komodo_minerid(int32_t height)
     return(-1);
 }
 
+int32_t komodo_minerids(uint8_t *minerids,int32_t height)
+{
+    int32_t i,n=0;
+    for (i=0; i<1000; i++,n++)
+        minerids[i] = komodo_minerid(height - i);
+    return(n);
+}
+
 int32_t komodo_is_special(int32_t height,uint8_t pubkey33[33])
 {
     int32_t i,notaryid,minerid,limit;
diff --git a/src/rpcblockchain.cpp b/src/rpcblockchain.cpp
index b79c2e90c..e44ff19e3 100644
--- a/src/rpcblockchain.cpp
+++ b/src/rpcblockchain.cpp
@@ -387,6 +387,41 @@ int32_t komodo_paxprices(int32_t *heights,uint64_t *prices,int32_t max,char *bas
 int32_t komodo_notaries(uint8_t pubkeys[64][33],int32_t height);
 char *bitcoin_address(char *coinaddr,uint8_t addrtype,uint8_t *pubkey_or_rmd160,int32_t len);
 uint32_t komodo_interest_args(int32_t *txheightp,uint32_t *tiptimep,uint64_t *valuep,uint256 hash,int32_t n);
+int32_t komodo_minerids(uint8_t *minerids,int32_t height);
+
+Value minerids(const Array& params, bool fHelp)
+{
+    Object ret; Array a; uint8_t minerids[1000],pubkeys[64][33]; int32_t i,j,n,tally[65];
+    if ( fHelp || params.size() != 1 )
+        throw runtime_error("minerids needs height\n");
+    LOCK(cs_main);
+    if ( (n= komodo_minerids(minerids,height)) > 0 && n <= 64 )
+    {
+        memset(tally,0,sizeof(tally));
+        for (i=0; i<n; i++)
+        {
+            if ( minerids[i] >= 64 )
+                tally[64]++;
+            else tally[minerids[i]]++;
+        }
+        if ( (n= komodo_notaries(pubkeys,height)) > 0 )
+        {
+            for (i=0; i<64; i++)
+            {
+                Object item; std::string hex; char *hexstr;
+                hex.resize(66);
+                hexstr = (char *)hex.data();
+                for (j=0; j<33; j++)
+                    sprintf(&hexstr[j*2],"%02x",pubkeys[i][j]);
+                item.push_back(Pair("pubkey", hex));
+                item.push_back(Pair("blocks", tally[i]));
+                a.push_back(item);
+            }
+        }
+        ret.push_back(Pair("mined", a));
+    } else ret.push_back(Pair("error", (char *)"couldnt extract minerids"));
+    return ret;
+}
 
 Value notaries(const Array& params, bool fHelp)
 {
diff --git a/src/rpcclient.cpp b/src/rpcclient.cpp
index adf10ccb7..19f159a6e 100644
--- a/src/rpcclient.cpp
+++ b/src/rpcclient.cpp
@@ -110,6 +110,7 @@ static const CRPCConvertParam vRPCConvertParams[] =
     { "paxprices", 3 },
     { "paxpending", 3 },
     { "notaries", 1 },
+    { "minerids", 1 },
 };
 
 class CRPCConvertTable
diff --git a/src/rpcserver.cpp b/src/rpcserver.cpp
index 4f04bdcc1..6e9bf5c35 100644
--- a/src/rpcserver.cpp
+++ b/src/rpcserver.cpp
@@ -304,6 +304,7 @@ static const CRPCCommand vRPCCommands[] =
     { "blockchain",         "paxpending",             &paxpending,             true  },
     { "blockchain",         "paxprices",              &paxprices,              true  },
     { "blockchain",         "notaries",               &notaries,               true  },
+    { "blockchain",         "minerids",               &minerids,               true  },
 
     /* Mining */
     { "mining",             "getblocktemplate",       &getblocktemplate,       true  },
diff --git a/src/rpcserver.h b/src/rpcserver.h
index 77a4818bb..87ceec137 100644
--- a/src/rpcserver.h
+++ b/src/rpcserver.h
@@ -244,6 +244,7 @@ extern json_spirit::Value getblock(const json_spirit::Array& params, bool fHelp)
 extern json_spirit::Value gettxoutsetinfo(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value gettxout(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value notaries(const json_spirit::Array& params, bool fHelp);
+extern json_spirit::Value minerids(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value paxprice(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value paxpending(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value paxprices(const json_spirit::Array& params, bool fHelp);