diff --git a/foundry.toml b/foundry.toml
index 3f60b7cbbf1..78dd0781224 100644
--- a/foundry.toml
+++ b/foundry.toml
@@ -8,6 +8,7 @@ out = 'out'
 libs = ['node_modules', 'lib']
 test = 'test'
 cache_path  = 'cache_forge'
+fs_permissions = [{ access = "read", path = "./test/bin" }]
 
 [fuzz]
 runs = 5000
diff --git a/test/account/utils/draft-ERC4337Utils.test.js b/test/account/utils/draft-ERC4337Utils.test.js
index ab2500b5382..7c292910dfb 100644
--- a/test/account/utils/draft-ERC4337Utils.test.js
+++ b/test/account/utils/draft-ERC4337Utils.test.js
@@ -3,11 +3,13 @@ const { expect } = require('chai');
 const { loadFixture } = require('@nomicfoundation/hardhat-network-helpers');
 
 const { packValidationData, UserOperation } = require('../../helpers/erc4337');
+const { deployEntrypoint } = require('../../helpers/erc4337-entrypoint');
 const { MAX_UINT48 } = require('../../helpers/constants');
 const ADDRESS_ONE = '0x0000000000000000000000000000000000000001';
 
 const fixture = async () => {
-  const [authorizer, sender, entrypoint, factory, paymaster] = await ethers.getSigners();
+  const { entrypoint } = await deployEntrypoint();
+  const [authorizer, sender, factory, paymaster] = await ethers.getSigners();
   const utils = await ethers.deployContract('$ERC4337Utils');
   const SIG_VALIDATION_SUCCESS = await utils.$SIG_VALIDATION_SUCCESS();
   const SIG_VALIDATION_FAILED = await utils.$SIG_VALIDATION_FAILED();
@@ -167,11 +169,19 @@ describe('ERC4337Utils', function () {
   describe('hash', function () {
     it('returns the operation hash with specified entrypoint and chainId', async function () {
       const userOp = new UserOperation({ sender: this.sender, nonce: 1 });
-      const chainId = 0xdeadbeef;
+      const chainId = await ethers.provider.getNetwork().then(({ chainId }) => chainId);
+      const otherChainId = 0xdeadbeef;
 
+      // check that helper matches entrypoint logic
+      expect(this.entrypoint.getUserOpHash(userOp.packed)).to.eventually.equal(userOp.hash(this.entrypoint, chainId));
+
+      // check library against helper
       expect(this.utils.$hash(userOp.packed, this.entrypoint, chainId)).to.eventually.equal(
         userOp.hash(this.entrypoint, chainId),
       );
+      expect(this.utils.$hash(userOp.packed, this.entrypoint, otherChainId)).to.eventually.equal(
+        userOp.hash(this.entrypoint, otherChainId),
+      );
     });
   });
 
diff --git a/test/bin/EntryPoint070.abi b/test/bin/EntryPoint070.abi
new file mode 100644
index 00000000000..3f3b1d6e5ff
--- /dev/null
+++ b/test/bin/EntryPoint070.abi
@@ -0,0 +1 @@
+[{"inputs":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"ret","type":"bytes"}],"name":"DelegateAndRevert","type":"error"},{"inputs":[{"internalType":"uint256","name":"opIndex","type":"uint256"},{"internalType":"string","name":"reason","type":"string"}],"name":"FailedOp","type":"error"},{"inputs":[{"internalType":"uint256","name":"opIndex","type":"uint256"},{"internalType":"string","name":"reason","type":"string"},{"internalType":"bytes","name":"inner","type":"bytes"}],"name":"FailedOpWithRevert","type":"error"},{"inputs":[{"internalType":"bytes","name":"returnData","type":"bytes"}],"name":"PostOpReverted","type":"error"},{"inputs":[],"name":"ReentrancyGuardReentrantCall","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"SenderAddressResult","type":"error"},{"inputs":[{"internalType":"address","name":"aggregator","type":"address"}],"name":"SignatureValidationFailed","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"userOpHash","type":"bytes32"},{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"address","name":"factory","type":"address"},{"indexed":false,"internalType":"address","name":"paymaster","type":"address"}],"name":"AccountDeployed","type":"event"},{"anonymous":false,"inputs":[],"name":"BeforeExecution","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"totalDeposit","type":"uint256"}],"name":"Deposited","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"userOpHash","type":"bytes32"},{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"nonce","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"revertReason","type":"bytes"}],"name":"PostOpRevertReason","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"aggregator","type":"address"}],"name":"SignatureAggregatorChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"totalStaked","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"unstakeDelaySec","type":"uint256"}],"name":"StakeLocked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"withdrawTime","type":"uint256"}],"name":"StakeUnlocked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"address","name":"withdrawAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"StakeWithdrawn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"userOpHash","type":"bytes32"},{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":true,"internalType":"address","name":"paymaster","type":"address"},{"indexed":false,"internalType":"uint256","name":"nonce","type":"uint256"},{"indexed":false,"internalType":"bool","name":"success","type":"bool"},{"indexed":false,"internalType":"uint256","name":"actualGasCost","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"actualGasUsed","type":"uint256"}],"name":"UserOperationEvent","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"userOpHash","type":"bytes32"},{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"nonce","type":"uint256"}],"name":"UserOperationPrefundTooLow","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"userOpHash","type":"bytes32"},{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"nonce","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"revertReason","type":"bytes"}],"name":"UserOperationRevertReason","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"address","name":"withdrawAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdrawn","type":"event"},{"inputs":[{"internalType":"uint32","name":"unstakeDelaySec","type":"uint32"}],"name":"addStake","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"delegateAndRevert","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"depositTo","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"deposits","outputs":[{"internalType":"uint256","name":"deposit","type":"uint256"},{"internalType":"bool","name":"staked","type":"bool"},{"internalType":"uint112","name":"stake","type":"uint112"},{"internalType":"uint32","name":"unstakeDelaySec","type":"uint32"},{"internalType":"uint48","name":"withdrawTime","type":"uint48"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"getDepositInfo","outputs":[{"components":[{"internalType":"uint256","name":"deposit","type":"uint256"},{"internalType":"bool","name":"staked","type":"bool"},{"internalType":"uint112","name":"stake","type":"uint112"},{"internalType":"uint32","name":"unstakeDelaySec","type":"uint32"},{"internalType":"uint48","name":"withdrawTime","type":"uint48"}],"internalType":"struct IStakeManager.DepositInfo","name":"info","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint192","name":"key","type":"uint192"}],"name":"getNonce","outputs":[{"internalType":"uint256","name":"nonce","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"initCode","type":"bytes"}],"name":"getSenderAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"bytes","name":"initCode","type":"bytes"},{"internalType":"bytes","name":"callData","type":"bytes"},{"internalType":"bytes32","name":"accountGasLimits","type":"bytes32"},{"internalType":"uint256","name":"preVerificationGas","type":"uint256"},{"internalType":"bytes32","name":"gasFees","type":"bytes32"},{"internalType":"bytes","name":"paymasterAndData","type":"bytes"},{"internalType":"bytes","name":"signature","type":"bytes"}],"internalType":"struct PackedUserOperation","name":"userOp","type":"tuple"}],"name":"getUserOpHash","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"components":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"bytes","name":"initCode","type":"bytes"},{"internalType":"bytes","name":"callData","type":"bytes"},{"internalType":"bytes32","name":"accountGasLimits","type":"bytes32"},{"internalType":"uint256","name":"preVerificationGas","type":"uint256"},{"internalType":"bytes32","name":"gasFees","type":"bytes32"},{"internalType":"bytes","name":"paymasterAndData","type":"bytes"},{"internalType":"bytes","name":"signature","type":"bytes"}],"internalType":"struct PackedUserOperation[]","name":"userOps","type":"tuple[]"},{"internalType":"contract IAggregator","name":"aggregator","type":"address"},{"internalType":"bytes","name":"signature","type":"bytes"}],"internalType":"struct IEntryPoint.UserOpsPerAggregator[]","name":"opsPerAggregator","type":"tuple[]"},{"internalType":"address payable","name":"beneficiary","type":"address"}],"name":"handleAggregatedOps","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"bytes","name":"initCode","type":"bytes"},{"internalType":"bytes","name":"callData","type":"bytes"},{"internalType":"bytes32","name":"accountGasLimits","type":"bytes32"},{"internalType":"uint256","name":"preVerificationGas","type":"uint256"},{"internalType":"bytes32","name":"gasFees","type":"bytes32"},{"internalType":"bytes","name":"paymasterAndData","type":"bytes"},{"internalType":"bytes","name":"signature","type":"bytes"}],"internalType":"struct PackedUserOperation[]","name":"ops","type":"tuple[]"},{"internalType":"address payable","name":"beneficiary","type":"address"}],"name":"handleOps","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint192","name":"key","type":"uint192"}],"name":"incrementNonce","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes","name":"callData","type":"bytes"},{"components":[{"components":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"verificationGasLimit","type":"uint256"},{"internalType":"uint256","name":"callGasLimit","type":"uint256"},{"internalType":"uint256","name":"paymasterVerificationGasLimit","type":"uint256"},{"internalType":"uint256","name":"paymasterPostOpGasLimit","type":"uint256"},{"internalType":"uint256","name":"preVerificationGas","type":"uint256"},{"internalType":"address","name":"paymaster","type":"address"},{"internalType":"uint256","name":"maxFeePerGas","type":"uint256"},{"internalType":"uint256","name":"maxPriorityFeePerGas","type":"uint256"}],"internalType":"struct EntryPoint.MemoryUserOp","name":"mUserOp","type":"tuple"},{"internalType":"bytes32","name":"userOpHash","type":"bytes32"},{"internalType":"uint256","name":"prefund","type":"uint256"},{"internalType":"uint256","name":"contextOffset","type":"uint256"},{"internalType":"uint256","name":"preOpGas","type":"uint256"}],"internalType":"struct EntryPoint.UserOpInfo","name":"opInfo","type":"tuple"},{"internalType":"bytes","name":"context","type":"bytes"}],"name":"innerHandleOp","outputs":[{"internalType":"uint256","name":"actualGasCost","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint192","name":"","type":"uint192"}],"name":"nonceSequenceNumber","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unlockStake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"withdrawAddress","type":"address"}],"name":"withdrawStake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"withdrawAddress","type":"address"},{"internalType":"uint256","name":"withdrawAmount","type":"uint256"}],"name":"withdrawTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]
\ No newline at end of file
diff --git a/test/bin/EntryPoint070.bytecode b/test/bin/EntryPoint070.bytecode
new file mode 100644
index 00000000000..fce261af5dc
Binary files /dev/null and b/test/bin/EntryPoint070.bytecode differ
diff --git a/test/bin/SenderCreator070.abi b/test/bin/SenderCreator070.abi
new file mode 100644
index 00000000000..0a1f0e4fbac
--- /dev/null
+++ b/test/bin/SenderCreator070.abi
@@ -0,0 +1 @@
+[{"inputs":[{"internalType":"bytes","name":"initCode","type":"bytes"}],"name":"createSender","outputs":[{"internalType":"address","name":"sender","type":"address"}],"stateMutability":"nonpayable","type":"function"}]
\ No newline at end of file
diff --git a/test/bin/SenderCreator070.bytecode b/test/bin/SenderCreator070.bytecode
new file mode 100644
index 00000000000..8344c202819
Binary files /dev/null and b/test/bin/SenderCreator070.bytecode differ
diff --git a/test/helpers/erc4337-entrypoint.js b/test/helpers/erc4337-entrypoint.js
new file mode 100644
index 00000000000..aba49f4c458
--- /dev/null
+++ b/test/helpers/erc4337-entrypoint.js
@@ -0,0 +1,31 @@
+const { ethers } = require('hardhat');
+const { setCode } = require('@nomicfoundation/hardhat-network-helpers');
+const fs = require('fs');
+const path = require('path');
+
+const INSTANCES = {
+  entrypoint: {
+    address: '0x0000000071727De22E5E9d8BAf0edAc6f37da032',
+    abi: JSON.parse(fs.readFileSync(path.resolve(__dirname, '../bin/EntryPoint070.abi'), 'utf-8')),
+    bytecode: fs.readFileSync(path.resolve(__dirname, '../bin/EntryPoint070.bytecode'), 'hex'),
+  },
+  sendercreator: {
+    address: '0xEFC2c1444eBCC4Db75e7613d20C6a62fF67A167C',
+    abi: JSON.parse(fs.readFileSync(path.resolve(__dirname, '../bin/SenderCreator070.abi'), 'utf-8')),
+    bytecode: fs.readFileSync(path.resolve(__dirname, '../bin/SenderCreator070.bytecode'), 'hex'),
+  },
+};
+
+function deployEntrypoint() {
+  return Promise.all(
+    Object.entries(INSTANCES).map(([name, { address, abi, bytecode }]) =>
+      setCode(address, '0x' + bytecode.replace(/0x/, ''))
+        .then(() => ethers.getContractAt(abi, address))
+        .then(instance => ({ [name]: instance })),
+    ),
+  ).then(namedInstances => Object.assign(...namedInstances));
+}
+
+module.exports = {
+  deployEntrypoint,
+};