diff --git a/src/cryptonote_core/cryptonote_basic.h b/src/cryptonote_core/cryptonote_basic.h
index 11ab40a..b5f8496 100644
--- a/src/cryptonote_core/cryptonote_basic.h
+++ b/src/cryptonote_core/cryptonote_basic.h
@@ -408,7 +408,9 @@ namespace cryptonote
 
     BEGIN_SERIALIZE_OBJECT()
       VARINT_FIELD_N("major_version", b.major_version);
+      puts("[1");
       if(b.major_version > CURRENT_BYTECOIN_BLOCK_MAJOR_VERSION) return false;
+      puts("]1");
       VARINT_FIELD_N("minor_version", b.minor_version);
       VARINT_FIELD(timestamp);
       FIELD_N("prev_id", b.prev_id);
@@ -481,7 +483,9 @@ namespace cryptonote
 
     BEGIN_SERIALIZE()
       VARINT_FIELD(major_version)
+      puts("[2");
       if(major_version > BLOCK_MAJOR_VERSION_3) return false;
+      puts("]2");
       VARINT_FIELD(minor_version)
       if (BLOCK_MAJOR_VERSION_1 == major_version)
       {
@@ -504,11 +508,13 @@ namespace cryptonote
 
     BEGIN_SERIALIZE_OBJECT()
       FIELDS(*static_cast<block_header *>(this))
+      puts("[3");
       if (BLOCK_MAJOR_VERSION_2 <= major_version)
       {
         auto sbb = make_serializable_bytecoin_block(*this, false, false);
         FIELD_N("parent_block", sbb);
       }
+      puts("]3");
       FIELD(miner_tx)
       FIELD(tx_hashes)
     END_SERIALIZE()
diff --git a/src/main.cc b/src/main.cc
index c702609..4d75320 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -83,9 +83,7 @@ NAN_METHOD(convert_blob) {
 
     //convert
     block b = AUTO_VAL_INIT(b);
-    puts("[1");
     if (!parse_and_validate_block_from_blob(input, b)) return THROW_ERROR_EXCEPTION("Failed to parse block");
-    puts("]1");
 
     if (b.major_version < BLOCK_MAJOR_VERSION_2) {
         if (!get_block_hashing_blob(b, output)) return THROW_ERROR_EXCEPTION("Failed to create mining block");