diff --git a/src/dexorder/contract/dexorder.py b/src/dexorder/contract/dexorder.py
index 60d4bbc..ef6a5fb 100644
--- a/src/dexorder/contract/dexorder.py
+++ b/src/dexorder/contract/dexorder.py
@@ -4,41 +4,29 @@ import logging
 from eth_abi.packed import encode_packed
 from eth_utils import keccak, to_bytes, to_checksum_address
 
-from dexorder import config
 from dexorder.base.chain import current_chain
 from dexorder.contract import ContractProxy
-from dexorder.util import hexstr
 
 log = logging.getLogger(__name__)
 
 _factory = {}
 _dexorder = {}
+_vault_init_code_hash = {}
 
 
-def _load_chain(chain_id: int):
-    try:
-        with open(f'../contract/broadcast/Deploy.sol/{chain_id}/run-latest.json', 'rt') as file:
-            deployment = json.load(file)
-            for tx in deployment['transactions']:
-                if tx['contractName'] == 'VaultFactory':
-                    addr = to_checksum_address(tx['contractAddress'])
-                    _factory[chain_id] = ContractProxy(addr, 'VaultFactory')
-                    log.info(f'VaultFactory {addr}')
-                elif tx['contractName'] == 'Dexorder':
-                    addr = to_checksum_address(tx['contractAddress'])
-                    _dexorder[chain_id] = DexorderContract(addr)
-                    log.info(f'Dexorder {addr}')
-    except FileNotFoundError:
-        log.warning(f'Could not find deployment for chain {chain_id}')
+with open('../contract/version.json') as version_file:
+    version = json.load(version_file)
 
+chain_info = version['chainInfo']
+
+for chain_id, info in chain_info.items():
+    chain_id = int(chain_id)
+    _factory[chain_id] = info['factory']
+    _dexorder[chain_id] = info['dexorder']
+    _vault_init_code_hash[chain_id] = to_bytes(hexstr=info['vaultInitCodeHash'])
 
 def get_by_chain(d):
-    chain_id = current_chain.get().id
-    try:
-        return d[chain_id]
-    except KeyError:
-        _load_chain(chain_id)
-    return d.get(chain_id)
+    return d[current_chain.get().id]
 
 def get_factory_contract() -> ContractProxy:
     return get_by_chain(_factory)
@@ -46,23 +34,16 @@ def get_factory_contract() -> ContractProxy:
 def get_dexorder_contract() -> ContractProxy:
     return get_by_chain(_dexorder)
 
-
-VAULT_INIT_CODE_HASH = None
-
+def get_vault_init_code_hash() -> bytes:
+    return get_by_chain(_vault_init_code_hash)
 
 def vault_address(owner, num):
-    global VAULT_INIT_CODE_HASH
-    if VAULT_INIT_CODE_HASH is None:
-        with open('../contract/out/Vault.sol/Vault.json', 'rt') as _file:
-            vault_info = json.load(_file)
-        VAULT_INIT_CODE_HASH = keccak(to_bytes(hexstr=vault_info['bytecode']['object']))
-        log.info(f'VAULT_INIT_CODE_HASH {hexstr(VAULT_INIT_CODE_HASH)}')
     salt = keccak(encode_packed(['address','uint8'],[owner,num]))
     contract_address = keccak(
         b"\xff"
         + to_bytes(hexstr=get_factory_contract().address)
         + salt
-        + VAULT_INIT_CODE_HASH
+        + get_vault_init_code_hash()
     ).hex()[-40:]
     addr = to_checksum_address(contract_address)
     # log.debug(f'vault addr {owner} #{num} => {salt.hex()} {VAULT_INIT_CODE_HASH.hex()} = {addr}')
@@ -75,3 +56,5 @@ def VaultContract(addr):
 
 def DexorderContract(addr):
     return ContractProxy(addr, 'Dexorder')
+
+print('chain_info', chain_info)
\ No newline at end of file