MystenLabs · hayes-mysten · Jan 6, 2026 · Dec 18, 2025
diff --git a/packages/kiosk/src/query/transfer-policy.ts b/packages/kiosk/src/query/transfer-policy.ts
@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 import type { SuiJsonRpcClient } from '@mysten/sui/jsonRpc';
-import { fromBase64, isValidSuiAddress } from '@mysten/sui/utils';
+import { fromBase64, isValidSuiAddress, SUI_FRAMEWORK_ADDRESS } from '@mysten/sui/utils';
 
 import '../bcs.js';
 
@@ -114,7 +114,7 @@ export async function queryOwnedTransferPolicies(
 			{
 				MoveModule: {
 					module: 'transfer_policy',
-					package: '0x2',
+					package: SUI_FRAMEWORK_ADDRESS,
 				},
 			},
 		],

diff --git a/packages/kiosk/src/types/kiosk.ts b/packages/kiosk/src/types/kiosk.ts
@@ -10,8 +10,10 @@ import type { TransactionArgument } from '@mysten/sui/transactions';
 
 import type { ObjectArgument } from './index.js';
 
+import { SUI_FRAMEWORK_ADDRESS } from '@mysten/sui/utils';
+
 /** The Kiosk module. */
-export const KIOSK_MODULE = '0x2::kiosk';
+export const KIOSK_MODULE = `${SUI_FRAMEWORK_ADDRESS}::kiosk`;
 
 /** The Kiosk type. */
 export const KIOSK_TYPE = `${KIOSK_MODULE}::Kiosk`;

diff --git a/packages/kiosk/src/types/transfer-policy.ts b/packages/kiosk/src/types/transfer-policy.ts
@@ -7,8 +7,10 @@ import type { Transaction, TransactionObjectArgument } from '@mysten/sui/transac
 import type { KioskClient } from '../client/kiosk-client.js';
 import type { ObjectArgument } from './index.js';
 
+import { SUI_FRAMEWORK_ADDRESS } from '@mysten/sui/utils';
+
 /** The Transfer Policy module. */
-export const TRANSFER_POLICY_MODULE = '0x2::transfer_policy';
+export const TRANSFER_POLICY_MODULE = `${SUI_FRAMEWORK_ADDRESS}::transfer_policy`;
 
 /** Name of the event emitted when a TransferPolicy for T is created. */
 export const TRANSFER_POLICY_CREATED_EVENT = `${TRANSFER_POLICY_MODULE}::TransferPolicyCreated`;

diff --git a/packages/sui/src/jsonRpc/json-rpc-resolver.ts b/packages/sui/src/jsonRpc/json-rpc-resolver.ts
@@ -3,7 +3,12 @@
 
 import { parse } from 'valibot';
 
-import { normalizeSuiAddress, normalizeSuiObjectId, SUI_TYPE_ARG } from '../utils/index.js';
+import {
+	normalizeSuiAddress,
+	normalizeSuiObjectId,
+	SUI_FRAMEWORK_ADDRESS,
+	SUI_TYPE_ARG,
+} from '../utils/index.js';
 import { ObjectRefSchema } from '../transactions/data/internal.js';
 import type { CallArg, Command, OpenMoveTypeSignature } from '../transactions/data/internal.js';
 import { Inputs } from '../transactions/Inputs.js';
@@ -413,7 +418,7 @@ function isReceivingType(type: OpenMoveTypeSignature): boolean {
 	}
 
 	return (
-		type.body.datatype.package === '0x2' &&
+		normalizeSuiAddress(type.body.datatype.package) === SUI_FRAMEWORK_ADDRESS &&
 		type.body.datatype.module === 'transfer' &&
 		type.body.datatype.type === 'Receiving'
 	);

diff --git a/packages/sui/src/transactions/object.ts b/packages/sui/src/transactions/object.ts
@@ -3,6 +3,13 @@
 
 import type { Transaction, TransactionObjectInput } from './Transaction.js';
 import { Inputs } from './Inputs.js';
+import {
+	MOVE_STDLIB_ADDRESS,
+	SUI_CLOCK_OBJECT_ID,
+	SUI_DENY_LIST_OBJECT_ID,
+	SUI_RANDOM_OBJECT_ID,
+	SUI_SYSTEM_STATE_OBJECT_ID,
+} from '../utils/index.js';
 
 export function createObjectMethods<T>(makeObject: (value: TransactionObjectInput) => T) {
 	function object(value: TransactionObjectInput) {
@@ -15,7 +22,7 @@ export function createObjectMethods<T>(makeObject: (value: TransactionObjectInpu
 		if (mutable !== undefined) {
 			return object(
 				Inputs.SharedObjectRef({
-					objectId: '0x5',
+					objectId: SUI_SYSTEM_STATE_OBJECT_ID,
 					initialSharedVersion: 1,
 					mutable,
 				}),
@@ -25,15 +32,15 @@ export function createObjectMethods<T>(makeObject: (value: TransactionObjectInpu
 		return object({
 			$kind: 'UnresolvedObject',
 			UnresolvedObject: {
-				objectId: '0x5',
+				objectId: SUI_SYSTEM_STATE_OBJECT_ID,
 				initialSharedVersion: 1,
 			},
 		});
 	};
 	object.clock = () =>
 		object(
 			Inputs.SharedObjectRef({
-				objectId: '0x6',
+				objectId: SUI_CLOCK_OBJECT_ID,
 				initialSharedVersion: 1,
 				mutable: false,
 			}),
@@ -42,15 +49,15 @@ export function createObjectMethods<T>(makeObject: (value: TransactionObjectInpu
 		object({
 			$kind: 'UnresolvedObject',
 			UnresolvedObject: {
-				objectId: '0x8',
+				objectId: SUI_RANDOM_OBJECT_ID,
 				mutable: false,
 			},
 		});
 	object.denyList = (options?: { mutable?: boolean }) => {
 		return object({
 			$kind: 'UnresolvedObject',
 			UnresolvedObject: {
-				objectId: '0x403',
+				objectId: SUI_DENY_LIST_OBJECT_ID,
 				mutable: options?.mutable,
 			},
 		});
@@ -60,7 +67,7 @@ export function createObjectMethods<T>(makeObject: (value: TransactionObjectInpu
 		(tx: Transaction) =>
 			tx.moveCall({
 				typeArguments: [type],
-				target: `0x1::option::${value === null ? 'none' : 'some'}`,
+				target: `${MOVE_STDLIB_ADDRESS}::option::${value === null ? 'none' : 'some'}`,
 				arguments: value === null ? [] : [tx.object(value)],
 			});
 

diff --git a/packages/sui/src/transactions/serializer.ts b/packages/sui/src/transactions/serializer.ts
@@ -27,7 +27,7 @@ export function isTxContext(param: OpenMoveTypeSignature): boolean {
 
 	return (
 		!!struct &&
-		normalizeSuiAddress(struct.package) === normalizeSuiAddress('0x2') &&
+		normalizeSuiAddress(struct.package) === SUI_FRAMEWORK_ADDRESS &&
 		struct.module === 'tx_context' &&
 		struct.type === 'TxContext'
 	);
@@ -72,7 +72,7 @@ export function getPureBcsSchema(typeSignature: OpenMoveTypeSignatureBody): BcsT
 	if ('datatype' in typeSignature) {
 		const pkg = normalizeSuiAddress(typeSignature.datatype.package);
 
-		if (pkg === normalizeSuiAddress(MOVE_STDLIB_ADDRESS)) {
+		if (pkg === MOVE_STDLIB_ADDRESS) {
 			if (
 				typeSignature.datatype.module === STD_ASCII_MODULE_NAME &&
 				typeSignature.datatype.type === STD_ASCII_STRUCT_NAME
@@ -97,7 +97,7 @@ export function getPureBcsSchema(typeSignature: OpenMoveTypeSignatureBody): BcsT
 		}
 
 		if (
-			pkg === normalizeSuiAddress(SUI_FRAMEWORK_ADDRESS) &&
+			pkg === SUI_FRAMEWORK_ADDRESS &&
 			typeSignature.datatype.module === OBJECT_MODULE_NAME &&
 			typeSignature.datatype.type === ID_STRUCT_NAME
 		) {

diff --git a/packages/sui/src/utils/constants.ts b/packages/sui/src/utils/constants.ts
@@ -1,16 +1,22 @@
 // Copyright (c) Mysten Labs, Inc.
 // SPDX-License-Identifier: Apache-2.0
 
-import { normalizeSuiObjectId } from './sui-types.js';
-
 export const SUI_DECIMALS = 9;
 export const MIST_PER_SUI = BigInt(1000000000);
 
-export const MOVE_STDLIB_ADDRESS = '0x1';
-export const SUI_FRAMEWORK_ADDRESS = '0x2';
-export const SUI_SYSTEM_ADDRESS = '0x3';
-export const SUI_CLOCK_OBJECT_ID = normalizeSuiObjectId('0x6');
+export const MOVE_STDLIB_ADDRESS =
+	'0x0000000000000000000000000000000000000000000000000000000000000001';
+export const SUI_FRAMEWORK_ADDRESS =
+	'0x0000000000000000000000000000000000000000000000000000000000000002';
+export const SUI_SYSTEM_ADDRESS =
+	'0x0000000000000000000000000000000000000000000000000000000000000003';
+export const SUI_CLOCK_OBJECT_ID =
+	'0x0000000000000000000000000000000000000000000000000000000000000006';
 export const SUI_SYSTEM_MODULE_NAME = 'sui_system';
 export const SUI_TYPE_ARG = `${SUI_FRAMEWORK_ADDRESS}::sui::SUI`;
-export const SUI_SYSTEM_STATE_OBJECT_ID: string = normalizeSuiObjectId('0x5');
-export const SUI_RANDOM_OBJECT_ID = normalizeSuiObjectId('0x8');
+export const SUI_SYSTEM_STATE_OBJECT_ID =
+	'0x0000000000000000000000000000000000000000000000000000000000000005';
+export const SUI_RANDOM_OBJECT_ID =
+	'0x0000000000000000000000000000000000000000000000000000000000000008';
+export const SUI_DENY_LIST_OBJECT_ID =
+	'0x0000000000000000000000000000000000000000000000000000000000000403';
diff --git a/packages/sui/src/utils/index.ts b/packages/sui/src/utils/index.ts
@@ -27,6 +27,7 @@ export {
 	SUI_TYPE_ARG,
 	SUI_SYSTEM_STATE_OBJECT_ID,
 	SUI_RANDOM_OBJECT_ID,
+	SUI_DENY_LIST_OBJECT_ID,
 } from './constants.js';
 
 export { isValidNamedPackage, isValidNamedType } from './move-registry.js';