diff --git a/Cargo.toml b/Cargo.toml
index 4fc4bed..617b8ff 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,6 +4,9 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+# use solana program but not sdk because this crate
+# may be imported to Solana programs
+solana-program = "1.18.15"
 bs58 = { version = "0.5.1", optional = true}
 
 [features]
diff --git a/src/lib.rs b/src/lib.rs
index bbb2456..b2a0171 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,58 +1,80 @@
 #[cfg(feature = "devnet")]
 pub mod constants {
+    use solana_program::pubkey::Pubkey;
+
     // staking dependencies
     // BF5PatmRTQDgEKoXR7iHRbkibEEi83nVM38cUKWzQcTR
-    pub const REWARD_CONTRACT_ID: [u8; 32] = [
+    pub const REWARD_CONTRACT_RAW_KEY: [u8; 32] = [
         152, 47, 246, 180, 6, 167, 190, 112, 127, 106, 56, 227, 102, 180, 130, 9, 103, 162, 6, 220,
         192, 223, 113, 215, 186, 137, 46, 236, 168, 244, 52, 48,
     ];
+    pub const REWARD_CONTRACT_PUBKEY: Pubkey = Pubkey::new_from_array(REWARD_CONTRACT_RAW_KEY);
+
     // HTsaJ7PYb6GKpeiMs2HsAcQTxoFrCF5zPXoTcYuxzcei
-    pub const DAO_PUBKEY: [u8; 32] = [
+    pub const DAO_RAW_KEY: [u8; 32] = [
         244, 157, 70, 175, 208, 191, 79, 124, 108, 236, 5, 135, 212, 234, 198, 220, 83, 173, 129,
         208, 134, 13, 87, 136, 190, 81, 159, 175, 51, 111, 137, 143,
     ];
+    pub const DAO_PUBKEY: Pubkey = Pubkey::new_from_array(DAO_RAW_KEY);
+
     // DAO's community mint
     // 4dLsjeXUdvKNubE8RDR5krYsvrgXfQCCrm1k1VZfgULg
-    pub const DAO_GOVERNING_MINT: [u8; 32] = [
+    pub const DAO_GOVERNING_MINT_RAW_KEY: [u8; 32] = [
         53, 226, 113, 62, 15, 5, 242, 245, 127, 108, 253, 92, 194, 244, 87, 12, 139, 229, 136, 132,
         29, 9, 7, 217, 199, 212, 126, 195, 125, 8, 73, 185,
     ];
+    pub const DAO_GOVERNING_MINT_PUBKEY: Pubkey = Pubkey::new_from_array(DAO_GOVERNING_MINT_RAW_KEY);
+
     // GovER5Lthms3bLBqWub97yVrMmEogzX7xNjdXpPPCVZw
-    pub const GOVERNANCE_PROGRAM_ID: [u8; 32] = [
+    pub const GOVERNANCE_PROGRAM_RAW_KEY: [u8; 32] = [
         234, 228, 53, 189, 238, 117, 183, 52, 205, 89, 62, 207, 154, 48, 75, 128, 36, 186, 40, 152,
         103, 183, 105, 177, 249, 60, 167, 187, 184, 142, 70, 254,
     ];
+    pub const GOVERNANCE_PROGRAM_PUBKEY: Pubkey = Pubkey::new_from_array(GOVERNANCE_PROGRAM_RAW_KEY);
+
     pub const REALM_NAME: &str = "VSR Rewards 24";
     // EzsKaQq61FLZwRaiUx7t17LWVVzsE8wRkhBghFrZGGwG
-    pub const FEE_RECEIVER: [u8; 32] = [
+    pub const FEE_RECEIVER_RAW_KEY: [u8; 32] = [
         207, 250, 238, 248, 108, 28, 218, 197, 38, 88, 2, 107, 98, 89, 111, 143, 240, 38, 219, 134,
         12, 245, 70, 184, 130, 226, 220, 115, 90, 135, 61, 223,
     ];
+    pub const FEE_RECEIVER_PUBKEY: Pubkey = Pubkey::new_from_array(FEE_RECEIVER_RAW_KEY);
 }
 
 #[cfg(feature = "mainnet")]
 pub mod constants {
+    use solana_program::pubkey::Pubkey;
+
     // staking dependencies
-    pub const REWARD_CONTRACT_ID: [u8; 32] = [
+    pub const REWARD_CONTRACT_RAW_KEY: [u8; 32] = [
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0,
     ];
-    pub const DAO_PUBKEY: [u8; 32] = [
+    pub const REWARD_CONTRACT_PUBKEY: Pubkey = Pubkey::new_from_array(REWARD_CONTRACT_RAW_KEY);
+
+    pub const DAO_RAW_KEY: [u8; 32] = [
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0,
     ];
+    pub const DAO_PUBKEY: Pubkey = Pubkey::new_from_array(DAO_RAW_KEY);
+
     // DAO's community mint
-    pub const DAO_GOVERNING_MINT: [u8; 32] = [
+    pub const DAO_GOVERNING_MINT_RAW_KEY: [u8; 32] = [
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0,
     ];
-    pub const GOVERNANCE_PROGRAM_ID: [u8; 32] = [
+    pub const DAO_GOVERNING_MINT_PUBKEY: Pubkey = Pubkey::new_from_array(DAO_GOVERNING_MINT_RAW_KEY);
+
+    pub const GOVERNANCE_PROGRAM_RAW_KEY: [u8; 32] = [
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0,
     ];
+    pub const GOVERNANCE_PROGRAM_PUBKEY: Pubkey = Pubkey::new_from_array(GOVERNANCE_PROGRAM_RAW_KEY);
+
     pub const REALM_NAME: &str = "";
-    pub const FEE_RECEIVER: [u8; 32] = [
+    pub const FEE_RECEIVER_RAW_KEY: [u8; 32] = [
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0,
     ];
+    pub const FEE_RECEIVER_PUBKEY: Pubkey = Pubkey::new_from_array(FEE_RECEIVER_RAW_KEY);
 }