diff --git a/include/wrapping_dap_hash.h b/include/wrapping_dap_hash.h
index 1d80fab57ca7fa50b72383dc9d76995b98dce569..701b5cc4fa4aa5cedaf44a846210b1f858569fdf 100644
--- a/include/wrapping_dap_hash.h
+++ b/include/wrapping_dap_hash.h
@@ -77,6 +77,7 @@ PyObject *dap_hash_fast_py(PyObject *self, PyObject *args);
 PyObject *dap_hash_fast_compare_py(PyObject *self, PyObject *args);
 PyObject *dap_hash_fast_is_blank_py(PyObject *self, PyObject *args);
 PyObject *dap_chain_hash_fast_to_str_py(PyObject *self, PyObject *args);
+PyObject *dap_chain_hash_fast_to_str_new_py(PyObject *self, PyObject *args);
 
 static PyMethodDef DapHashFastMethods[] = {
     {"strToHashFast", (PyCFunction)dap_chain_str_to_hash_fast_py, METH_VARARGS | METH_STATIC, ""},
@@ -84,6 +85,7 @@ static PyMethodDef DapHashFastMethods[] = {
     {"compare", (PyCFunction)dap_hash_fast_compare_py, METH_VARARGS | METH_STATIC, ""},
     {"isBlank", (PyCFunction)dap_hash_fast_is_blank_py, METH_VARARGS, ""},
     {"toStr", (PyCFunction)dap_chain_hash_fast_to_str_py, METH_VARARGS, ""},
+    {"toStrNew", (PyCFunction)dap_chain_hash_fast_to_str_new_py, METH_VARARGS, ""},
     {NULL, NULL, 0, NULL}
 };
 
diff --git a/src/wrapping_dap_hash.c b/src/wrapping_dap_hash.c
index 06d1227ea7c9b27a60d475801d82002e47a58efb..c54f6f43be72b41a9fa0dbebdf61e15b6e60c3e3 100644
--- a/src/wrapping_dap_hash.c
+++ b/src/wrapping_dap_hash.c
@@ -61,3 +61,8 @@ PyObject *dap_chain_hash_fast_to_str_py(PyObject *self, PyObject *args){
     int res = dap_chain_hash_fast_to_str(((PyDapChainHashFastObject*)self)->hash_fast, str, str_max);
     return Py_BuildValue("sn", &str, &str_max);
 }
+
+PyObject *dap_chain_hash_fast_to_str_new_py(PyObject *self, PyObject *args){
+    char *res = dap_chain_hash_fast_to_str_new(((PyDapChainHashFastObject*)self)->hash_fast);
+    return Py_BuildValue("s", res);
+}