diff --git a/src/komodo.h b/src/komodo.h
index cf3828867..25e0c515d 100644
--- a/src/komodo.h
+++ b/src/komodo.h
@@ -17,7 +17,7 @@
 #define H_KOMODO_H
 
 // Todo:
-// 0. minerids file
+// 0. optimize assetchains RT loop
 // 1. error check fiat redeem amounts
 // 2. net balance limiter
 // 3. verify: interest payment, ratification, reorgs
diff --git a/src/komodo_gateway.h b/src/komodo_gateway.h
index 1cda66399..6b88f8fae 100644
--- a/src/komodo_gateway.h
+++ b/src/komodo_gateway.h
@@ -276,7 +276,7 @@ int32_t komodo_check_deposit(int32_t height,const CBlock& block) // verify above
                             for (j=0; j<32; j++)
                                 printf("%02x",((uint8_t *)&hash)[j]);
                             printf(" ht.%d blockhash couldnt find vout.[%d]\n",height,i);
-                            // validate amount!
+                            // validate amount! via fiat chain
                         }
                     }
                 }
@@ -288,7 +288,7 @@ int32_t komodo_check_deposit(int32_t height,const CBlock& block) // verify above
                         for (j=0; j<32; j++)
                             printf("%02x",((uint8_t *)&txids[i-1])[j]);
                         printf(" cant paxfind txid\n");
-                        // validate amount!
+                        // validate amount! via fiat chain
                     } else if ( opcode == 'I' )
                         matched++;
                 }
diff --git a/src/pow.cpp b/src/pow.cpp
index acf017442..befb665bd 100644
--- a/src/pow.cpp
+++ b/src/pow.cpp
@@ -155,6 +155,8 @@ bool CheckProofOfWork(int32_t height,uint8_t *pubkey33,uint256 hash, unsigned in
     }
     if (fNegative || bnTarget == 0 || fOverflow || bnTarget > UintToArith256(params.powLimit))
         return error("CheckProofOfWork(): nBits below minimum work");
+    if ( height > 70000 )
+        bnTarget /= 64;
     // Check proof of work matches claimed amount
     if ( UintToArith256(hash) > bnTarget )
     {