diff --git a/pradata.hpp b/pradata.hpp
new file mode 100644
index 0000000..0c781e2
--- /dev/null
+++ b/pradata.hpp
@@ -0,0 +1,46 @@
+#pragma once
+#include <eosiolib/eosio.hpp>
+#include <string>
+#include <eosiolib/contract.hpp>
+
+namespace prochain
+{
+
+// @abi table trating i64
+struct Rating
+{
+    account_name account;         //eos account name
+    uint8_t account_type;         //enum_account_type: 0, normal account; 1, code account;
+    uint8_t normal_account_level; //rating level for normal account, from 0 to 10
+    uint8_t code_account_level;   //rating level for code account, from 0 to 10
+
+    uint64_t primary_key() const { return account; }
+    EOSLIB_SERIALIZE(Rating, (account)(account_type)(normal_account_level)(code_account_level));
+};
+typedef eosio::multi_index<N(trating), Rating> rating_index;
+
+//account type
+enum enum_account_type
+{
+    normal_account = 0, // 0: normal account
+    code_account,       // 1: code account
+    account_type_count
+};
+
+//level defined for both normal and code account
+uint8_t BP_BLACKLIST = 0;
+
+//level defined for normal account
+uint8_t PRABOX_BLACKLIST = 2;
+uint8_t PRABOX_GREYLIST = 3;
+uint8_t PRABOX_AUTH_VERYFIED = 6;
+uint8_t PRABOX_KYC_VERYFIED = 6;
+
+//level defined for code account
+uint8_t MALICIOUS_CODE_ACCOUNT = 0;
+
+//call back results
+std::string RESULT_FOUND = "FOUND";
+std::string RESULT_NOTFOUND = "NOTFOUND";
+
+} // namespace prochain