diff --git a/src/aeser_api_encoder.erl b/src/aeser_api_encoder.erl
index 61114e0..0691de4 100644
--- a/src/aeser_api_encoder.erl
+++ b/src/aeser_api_encoder.erl
@@ -207,6 +207,7 @@ type2enc(poi)                  -> ?BASE64;
 type2enc(state_trees)          -> ?BASE64;
 type2enc(call_state_tree)      -> ?BASE64;
 type2enc(mp_tree_hash)         -> ?BASE58;
+type2enc(hash)                 -> ?BASE58;
 type2enc(bytearray)            -> ?BASE64.
 
 
@@ -238,6 +239,7 @@ type2pfx(poi)                  -> <<"pi">>;
 type2pfx(state_trees)          -> <<"ss">>;
 type2pfx(call_state_tree)      -> <<"cs">>;
 type2pfx(mp_tree_hash)         -> <<"mt">>;
+type2pfx(hash)                 -> <<"hs">>;
 type2pfx(bytearray)            -> <<"ba">>.
 
 pfx2type(<<"kh">>) -> key_block_hash;
@@ -268,6 +270,7 @@ pfx2type(<<"pi">>) -> poi;
 pfx2type(<<"ss">>) -> state_trees;
 pfx2type(<<"cs">>) -> call_state_tree;
 pfx2type(<<"mt">>) -> mp_tree_hash;
+pfx2type(<<"hs">>) -> hash;
 pfx2type(<<"ba">>) -> bytearray.
 
 -spec byte_size_for_type(known_type()) -> non_neg_integer() | not_applicable.
@@ -300,6 +303,7 @@ byte_size_for_type(poi)                  -> not_applicable;
 byte_size_for_type(state_trees)          -> not_applicable;
 byte_size_for_type(call_state_tree)      -> not_applicable;
 byte_size_for_type(mp_tree_hash)         -> 32;
+byte_size_for_type(hash)                 -> 32;
 byte_size_for_type(bytearray)            -> not_applicable.
 
 
diff --git a/src/aeser_chain_objects.erl b/src/aeser_chain_objects.erl
index d7a5d36..5fd8eaf 100644
--- a/src/aeser_chain_objects.erl
+++ b/src/aeser_chain_objects.erl
@@ -95,9 +95,11 @@ tag(paying_for_tx) -> 82;
 tag(ga_meta_tx_auth_data) -> 810;
 tag(associate_chain) -> 90;
 tag(ac_state) -> 91;
-tag(ac_create_tx) -> 92;
-tag(ac_deposit_tx) -> 93;
-tag(ac_update_cops_tx) -> 94;
+tag(ac_burn) -> 92;
+tag(ac_create_tx) -> 93;
+tag(ac_deposit_tx) -> 94;
+tag(ac_update_cops_tx) -> 95;
+tag(ac_rollup_tx) -> 96;
 tag(key_block) -> 100;
 tag(micro_block) -> 101;
 tag(light_micro_block) -> 102;
@@ -162,9 +164,11 @@ rev_tag(82) -> paying_for_tx;
 rev_tag(810) -> ga_meta_tx_auth_data;
 rev_tag(90)  -> associate_chain;
 rev_tag(91)  -> ac_state;
-rev_tag(92)  -> ac_create_tx;
-rev_tag(93)  -> ac_deposit_tx;
-rev_tag(94)  -> ac_update_cops_tx;
+rev_tag(92)  -> ac_burn;
+rev_tag(93)  -> ac_create_tx;
+rev_tag(94)  -> ac_deposit_tx;
+rev_tag(95)  -> ac_update_cops_tx;
+rev_tag(96)  -> ac_rollup_tx;
 rev_tag(100) -> key_block;
 rev_tag(101) -> micro_block;
 rev_tag(102) -> light_micro_block;