diff --git a/dap_chain_net_node.c b/dap_chain_net_node.c
new file mode 100644
index 0000000000000000000000000000000000000000..216b750f11e6e1893fe49af2333d1ce517d972e0
--- /dev/null
+++ b/dap_chain_net_node.c
@@ -0,0 +1,23 @@
+/*
+ * Authors:
+ * Dmitriy A. Gearasimov <naeper@demlabs.net>
+ * DeM Labs Inc.   https://demlabs.net
+
+ This file is part of DAP (Deus Applications Prototypes) the open source project
+
+    DAP (Deus Applicaions Prototypes) is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    DAP is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with any DAP based project.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "dap_chain_node.h"
+
diff --git a/dap_chain_net_node.h b/dap_chain_net_node.h
new file mode 100644
index 0000000000000000000000000000000000000000..37f73f8da55ea1148d6da1698a439b6acfa01998
--- /dev/null
+++ b/dap_chain_net_node.h
@@ -0,0 +1,40 @@
+/*
+ * Authors:
+ * Dmitriy A. Gearasimov <naeper@demlabs.net>
+ * DeM Labs Inc.   https://demlabs.net
+
+ This file is part of DAP (Deus Applications Prototypes) the open source project
+
+    DAP (Deus Applicaions Prototypes) is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    DAP is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with any DAP based project.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include <stdint.h>
+#include <stddef.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+typedef union dap_chain_node_addr{
+    uint64_t addr_raw;
+    uint8_t addr_oct[sizeof(uint64_t)]; // Access to selected octects
+} dap_chain_node_addr_t;
+
+typedef struct dap_chain_node{
+    dap_chain_node_addr_t addr;
+    dap_chain_node_addr_t *uplinks;
+    dap_chain_node_addr_t *downlinks;
+    struct in_addr *ipv4_addrs;
+    struct in6_addr *ipv6_addrs;
+} dap_chain_node_t;