diff --git a/dap-sdk b/dap-sdk
index 1b6f4c30a80d1c8ccfdc9a9b4f283caf3073f0ee..85b0a265180fc0d3a4d34ba6c7f3b5fee82f173d 160000
--- a/dap-sdk
+++ b/dap-sdk
@@ -1 +1 @@
-Subproject commit 1b6f4c30a80d1c8ccfdc9a9b4f283caf3073f0ee
+Subproject commit 85b0a265180fc0d3a4d34ba6c7f3b5fee82f173d
diff --git a/modules/chain/dap_chain.c b/modules/chain/dap_chain.c
index 3998f4c4b4db6748982142fe41839959c88fb06b..c8080919dc9b702c7fb87364f50f6edf9d7425df 100644
--- a/modules/chain/dap_chain.c
+++ b/modules/chain/dap_chain.c
@@ -582,15 +582,15 @@ int dap_chain_save_all(dap_chain_t *l_chain)
     return l_ret;
 }
 
-//send chain downloading data to notify socket
+//send chain load_progress data to notify socket
 bool download_notify_callback(dap_chain_t* a_chain) {
     json_object* l_chain_info = json_object_new_object();
-    json_object_object_add(l_chain_info, "net_id", json_object_new_uint64(a_chain->net_id.uint64));
+    json_object_object_add(l_chain_info, "class", json_object_new_string("chain_init"));
+    json_object_object_add(l_chain_info, "net", json_object_new_string(a_chain->net_name));
     json_object_object_add(l_chain_info, "chain_id", json_object_new_uint64(a_chain->id.uint64));
-    json_object_object_add(l_chain_info, "cell_id", json_object_new_uint64(a_chain->active_cell_id.uint64));
-    json_object_object_add(l_chain_info, "download_percentage", json_object_new_int(a_chain->download_percentage));
+    json_object_object_add(l_chain_info, "load_progress", json_object_new_int(a_chain->load_progress));
     dap_notify_server_send_mt(json_object_get_string(l_chain_info));
-    log_it(L_DEBUG, "Download notify: net_name: %s; chain_id: %d; download:%d%c", a_chain->net_name, a_chain->id.uint64, a_chain->download_percentage, '%');
+    log_it(L_DEBUG, "Load progress: net_name: %s; chain_id: %d; download:%d%c", a_chain->net_name, a_chain->id.uint64, a_chain->load_progress, '%');
     json_object_put(l_chain_info);
     return true;
 }
diff --git a/modules/chain/dap_chain_cell.c b/modules/chain/dap_chain_cell.c
index 00e86333e4437539ae782b14b69bc75165ab734f..750c05c7abddb55b8fe92bbca870463e01ce09cd 100644
--- a/modules/chain/dap_chain_cell.c
+++ b/modules/chain/dap_chain_cell.c
@@ -439,7 +439,7 @@ int dap_chain_cell_load(dap_chain_t *a_chain, dap_chain_cell_t *a_cell)
     uint64_t q = 0;
     if (a_chain->is_mapped) {
         a_cell->map_pos = a_cell->map + sizeof(dap_chain_cell_file_header_t);
-        for ( uint64_t l_el_size = 0; l_pos < l_size; ++q, l_pos += l_el_size + sizeof(uint64_t), a_chain->download_percentage =  (int)((double)l_pos/l_size * 100 + 0.5)) {
+        for ( uint64_t l_el_size = 0; l_pos < l_size; ++q, l_pos += l_el_size + sizeof(uint64_t), a_chain->load_progress =  (int)((double)l_pos/l_size * 100 + 0.5)) {
             size_t space_left = (size_t)( a_cell->map_end - a_cell->map_pos );
             if ( space_left < sizeof(uint64_t) || (space_left - sizeof(uint64_t)) < *(uint64_t*)a_cell->map_pos )
                 if ( s_cell_map_new_volume(a_cell, l_pos) )
@@ -468,7 +468,7 @@ int dap_chain_cell_load(dap_chain_t *a_chain, dap_chain_cell_t *a_cell)
                 break;
             }
             l_pos += sizeof(uint64_t) + ( l_read = fread((void*)l_element, 1, l_el_size, a_cell->file_storage) );
-            a_chain->download_percentage =  (int)((double)l_pos/l_size * 100 + 0.5);
+            a_chain->load_progress =  (int)((double)l_pos/l_size * 100 + 0.5);
             if (l_read != l_el_size) {
                 log_it(L_ERROR, "Read only %lu of %zu bytes, stop cell loading", l_read, l_el_size);
                 DAP_DELETE(l_element);
diff --git a/modules/chain/include/dap_chain.h b/modules/chain/include/dap_chain.h
index 7577c93488da6f21585d4b3f3205328042c87b8d..e4b44b2a987c1c20cbcbb2bb19e45f18512ff370 100644
--- a/modules/chain/include/dap_chain.h
+++ b/modules/chain/include/dap_chain.h
@@ -140,7 +140,7 @@ typedef struct dap_chain {
     char *net_name;
     bool is_datum_pool_proc;
     bool is_mapped;
-    atomic_int download_percentage; 
+    atomic_int load_progress; 
     // Nested cells (hashtab by cell_id)
     dap_chain_cell_t *cells;
     dap_chain_cell_id_t active_cell_id;