diff --git a/modules/cellframe-sdk/type/dag/include/wrapping_dap_chain_cs_dag.h b/modules/cellframe-sdk/type/dag/include/wrapping_dap_chain_cs_dag.h
new file mode 100644
index 0000000000000000000000000000000000000000..c978669c81ab073b5baf88fe88c09c2e5c4ca159
--- /dev/null
+++ b/modules/cellframe-sdk/type/dag/include/wrapping_dap_chain_cs_dag.h
@@ -0,0 +1,70 @@
+#pragma once
+
+#include <Python.h>
+#include "dap_chain_cs_dag.h"
+#include "wrapping_dap_chain_cs_dag_event.h"
+#include "wrapping_dap_hash.h"
+#include "wrapping_dap_chain_atom_ptr.h"
+#include "libdap_chain_atom_iter_python.h"
+
+#ifdef __cplusplus
+extern "C"{
+#endif
+
+typedef struct PyDapChainCsDag {
+ PyObject_HEAD
+ dap_chain_cs_dag_t *dag;
+} PyDapChainCsDagObject;
+
+PyObject *dap_chain_cs_dag_find_event_by_hash_py(PyObject *self, PyObject *args);
+
+static PyMethodDef DapChainCsDagMethods[] = {
+ {"findByHash", (PyCFunction)dap_chain_cs_dag_find_event_by_hash_py, METH_VARARGS, ""},
+ {NULL, NULL, 0, NULL}
+};
+
+static PyTypeObject DapChainCsDag_DapChainCsDagType = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ "CellFrame.ChainCsDag", /* tp_name */
+ sizeof(PyDapChainCsDagObject), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ 0, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_reserved */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ 0, /* tp_call */
+ 0, /* tp_str */
+ 0, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT |
+ Py_TPFLAGS_BASETYPE, /* tp_flags */
+ "Chain cs dag objects", /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ DapChainCsDagMethods, /* tp_methods */
+ 0, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ 0, /* tp_init */
+ 0, /* tp_alloc */
+ PyType_GenericNew, /* tp_new */
+};
+
+#ifdef __cplusplus
+};
+#endif
diff --git a/modules/cellframe-sdk/type/dag/include/wrapping_dap_chain_cs_dag_event.h b/modules/cellframe-sdk/type/dag/include/wrapping_dap_chain_cs_dag_event.h
new file mode 100644
index 0000000000000000000000000000000000000000..e4c1dfb58b5f72d1d900861c35cce549fb96dbd7
--- /dev/null
+++ b/modules/cellframe-sdk/type/dag/include/wrapping_dap_chain_cs_dag_event.h
@@ -0,0 +1,85 @@
+#pragma once
+
+#include <Python.h>
+#include <datetime.h>
+#include "dap_chain_cs_dag_event.h"
+#include "wrapping_dap_chain_common.h"
+#include "wrapping_dap_hash.h"
+#include "wrapping_dap_chain_datum.h"
+
+typedef struct PyDapChainCsDagEvent{
+ PyObject_HEAD
+ dap_chain_cs_dag_event_t *event;
+ size_t event_size;
+}PyDapChainCsDagEventObject;
+
+PyObject *wrapping_dap_chain_cs_dag_event_get_version(PyObject *self, void *closure);
+PyObject *wrapping_dap_chain_cs_dag_event_get_round_id(PyObject *self, void *closure);
+PyObject *wrapping_dap_chain_cs_dag_event_get_ts_created(PyObject *self, void *closure);
+PyObject *wrapping_dap_chain_cs_dag_event_get_chain_id(PyObject *self, void *closure);
+PyObject *wrapping_dap_chain_cs_dag_event_get_cell_id(PyObject *self, void *closure);
+PyObject *wrapping_dap_chain_cs_dag_event_get_hash_count(PyObject *self, void *closure);
+PyObject *wrapping_dap_chain_cs_dag_event_get_signs_count(PyObject *self, void *closure);
+PyObject *wrapping_dap_chain_cs_dag_event_get_links(PyObject *self, void *closure);
+PyObject *wrapping_dap_chain_cs_dag_event_get_datum(PyObject *self, void *closure);
+PyObject *wrapping_dap_chain_cs_dag_event_get_signs(PyObject *self, void *closure);
+
+static PyMethodDef PyDapChainCsDagEventMethodsDef[] = {
+ {NULL, NULL, 0, NULL}
+};
+
+static PyGetSetDef PyDapChainCsDagEventGetsSetsDef[] = {
+ {"version", (getter)wrapping_dap_chain_cs_dag_event_get_version, NULL, NULL, NULL},
+ {"roundId", (getter)wrapping_dap_chain_cs_dag_event_get_round_id, NULL, NULL, NULL},
+ {"created", (getter)wrapping_dap_chain_cs_dag_event_get_ts_created, NULL, NULL, NULL},
+ {"chainId", (getter)wrapping_dap_chain_cs_dag_event_get_chain_id, NULL, NULL, NULL},
+ {"cellId", (getter)wrapping_dap_chain_cs_dag_event_get_cell_id, NULL, NULL, NULL},
+ {"hashCount", (getter)wrapping_dap_chain_cs_dag_event_get_hash_count, NULL, NULL, NULL},
+ {"signsCount", (getter)wrapping_dap_chain_cs_dag_event_get_signs_count, NULL, NULL, NULL},
+ {"links", (getter)wrapping_dap_chain_cs_dag_event_get_links, NULL, NULL, NULL},
+ {"datum", (getter)wrapping_dap_chain_cs_dag_event_get_datum, NULL, NULL, NULL},
+ {"signs", (getter)wrapping_dap_chain_cs_dag_event_get_signs, NULL, NULL, NULL},
+ {NULL}
+};
+
+static PyTypeObject DapChainCsDagEvent_DapChainCsDagEventType = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ "CellFrame.ChainCsDagEvent", /* tp_name */
+ sizeof(PyDapChainCsDagEventObject), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ 0, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_reserved */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ 0, /* tp_call */
+ 0, /* tp_str */
+ 0, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT |
+ Py_TPFLAGS_BASETYPE, /* tp_flags */
+ "Chain cs dag event objects", /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ PyDapChainCsDagEventMethodsDef, /* tp_methods */
+ 0, /* tp_members */
+ PyDapChainCsDagEventGetsSetsDef, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ 0, /* tp_init */
+ 0, /* tp_alloc */
+ PyType_GenericNew, /* tp_new */
+};
diff --git a/modules/cellframe-sdk/type/dag/src/wrapping_dap_chain_cs_dag.c b/modules/cellframe-sdk/type/dag/src/wrapping_dap_chain_cs_dag.c
new file mode 100644
index 0000000000000000000000000000000000000000..a1c95f383ecb93bafa12baefc9cde9f6674684fe
--- /dev/null
+++ b/modules/cellframe-sdk/type/dag/src/wrapping_dap_chain_cs_dag.c
@@ -0,0 +1,39 @@
+#include "wrapping_dap_chain_cs_dag.h"
+#include "dap_chain_cell.h"
+
+PyObject *dap_chain_cs_dag_find_event_by_hash_py(PyObject *self, PyObject *args){
+ PyObject *obj_hash;
+ PyObject *obj_atom_iter;
+ if (!PyArg_ParseTuple(args, "O", &obj_hash)){
+ PyErr_SetString(PyExc_AttributeError, "This function must take two arguments. ");
+ return NULL;
+ }
+ bool isCheck = PyObject_TypeCheck(obj_hash, &DapHashFastObject_DapHashFastObjectType);
+// if (!isCheck){
+// PyErr_SetString(PyExc_AttributeError, "The first argument to this function is not a DapHash object.");
+// return NULL;
+// }
+// if (!PyDapChainAtomIter_Check(obj_atom_iter)){
+// PyErr_SetString(PyExc_AttributeError, "The second argument received to this function is not an object of type ChainAtomIter.");
+// return NULL;
+// }
+ dap_chain_cell_t *l_cell = ((PyDapChainCsDagObject*)self)->dag->chain->cells;
+ size_t size_atom = 0;
+ dap_chain_atom_iter_t *l_iter = ((PyDapChainCsDagObject*)self)->dag->chain->callback_atom_iter_create(
+ ((PyDapChainCsDagObject*)self)->dag->chain,
+ l_cell->id
+ );
+ dap_chain_atom_ptr_t l_ptr = ((PyDapChainCsDagObject*)self)->dag->chain->callback_atom_find_by_hash(
+ l_iter,
+ ((PyDapHashFastObject*)obj_hash)->hash_fast,
+ &size_atom);
+ if (l_ptr == NULL){
+ return Py_None;
+ }
+ PyDapChainCsDagEventObject *obj_event = PyObject_New(PyDapChainCsDagEventObject,
+ &DapChainCsDagEvent_DapChainCsDagEventType);
+ PyObject_Dir((PyObject*)obj_event);
+ obj_event->event = l_iter->cur;
+ obj_event->event_size = l_iter->cur_size;
+ return (PyObject*)obj_event;
+}
\ No newline at end of file
diff --git a/modules/cellframe-sdk/type/dag/src/wrapping_dap_chain_cs_dag_event.c b/modules/cellframe-sdk/type/dag/src/wrapping_dap_chain_cs_dag_event.c
new file mode 100644
index 0000000000000000000000000000000000000000..049cc4f303748c6bc6e2d8df46396922566c7ae4
--- /dev/null
+++ b/modules/cellframe-sdk/type/dag/src/wrapping_dap_chain_cs_dag_event.c
@@ -0,0 +1,81 @@
+#include "wrapping_dap_chain_cs_dag_event.h"
+
+PyObject *wrapping_dap_chain_cs_dag_event_get_version(PyObject *self, void *closure){
+ (void)closure;
+ return Py_BuildValue("H", ((PyDapChainCsDagEventObject*)self)->event->header.version);
+}
+PyObject *wrapping_dap_chain_cs_dag_event_get_round_id(PyObject *self, void *closure){
+ (void)closure;
+ return Py_BuildValue("k", ((PyDapChainCsDagEventObject*)self)->event->header.round_id);
+}
+PyObject *wrapping_dap_chain_cs_dag_event_get_ts_created(PyObject *self, void *closure){
+ (void)closure;
+ PyDateTime_IMPORT;
+ PyObject *obj_ts_float = PyLong_FromLong(((PyDapChainCsDagEventObject*)self)->event->header.ts_created);
+ PyObject *obj_ts = Py_BuildValue("(O)", obj_ts_float);
+ PyDateTime_IMPORT;
+ PyObject *obj_dt = PyDateTime_FromTimestamp(obj_ts);
+ return obj_dt;
+}
+PyObject *wrapping_dap_chain_cs_dag_event_get_chain_id(PyObject *self, void *closure){
+ (void)closure;
+ PyDapChainIDObject *obj_chain_id = PyObject_New(PyDapChainIDObject, &DapChainIDObject_DapChainIDType);
+ PyObject_Dir((PyObject*)obj_chain_id);
+ obj_chain_id->chain_id = &((PyDapChainCsDagEventObject*)self)->event->header.chain_id;
+ return (PyObject*)obj_chain_id;
+}
+PyObject *wrapping_dap_chain_cs_dag_event_get_cell_id(PyObject *self, void *closure){
+ (void)closure;
+ PyDapChainCellIDObject *obj_cell_id = PyObject_New(PyDapChainCellIDObject, &DapChainCellIDObject_DapChainCellIDType);
+ PyObject_Dir((PyObject*)obj_cell_id);
+ obj_cell_id->cell_id = ((PyDapChainCsDagEventObject*)self)->event->header.cell_id;
+ return (PyObject*)obj_cell_id;
+}
+PyObject *wrapping_dap_chain_cs_dag_event_get_hash_count(PyObject *self, void *closure){
+ (void)closure;
+ return Py_BuildValue("H", ((PyDapChainCsDagEventObject*)self)->event->header.hash_count);
+}
+PyObject *wrapping_dap_chain_cs_dag_event_get_signs_count(PyObject *self, void *closure){
+ (void)closure;
+ return Py_BuildValue("H", ((PyDapChainCsDagEventObject*)self)->event->header.signs_count);
+}
+PyObject *wrapping_dap_chain_cs_dag_event_get_links(PyObject *self, void *closure){
+ (void)closure;
+ PyObject *obj_list = PyList_New(((PyDapChainCsDagEventObject*)self)->event->header.hash_count);
+ for (uint16_t i=0; i < ((PyDapChainCsDagEventObject*)self)->event->header.hash_count; i++){
+ PyDapHashFastObject *obj_hf = PyObject_New(PyDapHashFastObject, &DapHashFastObject_DapHashFastObjectType);
+ PyObject_Dir((PyObject*)obj_hf);
+ obj_hf->hash_fast =
+ (dap_chain_hash_fast_t *) (((PyDapChainCsDagEventObject*)self)->event->hashes_n_datum_n_signs +
+ i*sizeof (dap_chain_hash_fast_t));
+ PyList_SetItem(obj_list, i, obj_hf);
+ }
+ return obj_list;
+}
+PyObject *wrapping_dap_chain_cs_dag_event_get_datum(PyObject *self, void *closure){
+ (void)closure;
+ size_t l_offset = ((PyDapChainCsDagEventObject*)self)->event->header.hash_count*sizeof (dap_chain_hash_fast_t);
+ PyDapChainDatumObject *datum = PyObject_New(PyDapChainDatumObject, &DapChainDatumObject_DapChainDatumObjectType);
+ PyObject_Dir((PyObject*)datum);
+ datum->datum = (dap_chain_datum_t*) (((PyDapChainCsDagEventObject*)self)->event->hashes_n_datum_n_signs + l_offset);
+ return (PyObject*)datum;
+}
+PyObject *wrapping_dap_chain_cs_dag_event_get_signs(PyObject *self, void *closure){
+ size_t l_offset = ((PyDapChainCsDagEventObject*)self)->event->header.hash_count*sizeof (dap_chain_hash_fast_t);
+ dap_chain_datum_t *l_datum = (dap_chain_datum_t*) (((PyDapChainCsDagEventObject*)self)->event->hashes_n_datum_n_signs + l_offset);
+ l_offset += dap_chain_datum_size(l_datum);
+ PyObject *obj_list = PyList_New(0);
+ while (l_offset + sizeof(((PyDapChainCsDagEventObject*)self)->event->header) < ((PyDapChainCsDagEventObject*)self)->event_size){
+ dap_sign_t * l_sign =(dap_sign_t *) (((PyDapChainCsDagEventObject*)self)->event->hashes_n_datum_n_signs +l_offset);
+ size_t l_sign_size = dap_sign_get_size(l_sign);
+ if (l_sign_size == 0){
+ break;
+ }
+ PyDapSignObject *obj_sign = PyObject_New(PyDapSignObject, &DapSignObject_DapSignObjectType);
+ PyObject_Dir((PyObject*)obj_sign);
+ obj_sign->sign = l_sign;
+ PyList_Append(obj_list, (PyObject*)obj_sign);
+ l_offset += l_sign_size;
+ }
+ return obj_list;
+}