=======================
👁👁 STORAGE LAYOUT snapshot 👁👁
=======================

=======================
➡ L1CrossDomainMessenger
=======================

+---------------------------+--------------------------+------+--------+-------+
| Name                      | Type                     | Slot | Offset | Bytes |
+==============================================================================+
| _initialized              | uint8                    | 0    | 0      | 1     |
|---------------------------+--------------------------+------+--------+-------|
| _initializing             | bool                     | 0    | 1      | 1     |
|---------------------------+--------------------------+------+--------+-------|
| __gap                     | uint256[50]              | 1    | 0      | 1600  |
|---------------------------+--------------------------+------+--------+-------|
| _owner                    | address                  | 51   | 0      | 20    |
|---------------------------+--------------------------+------+--------+-------|
| __gap                     | uint256[49]              | 52   | 0      | 1568  |
|---------------------------+--------------------------+------+--------+-------|
| _paused                   | bool                     | 101  | 0      | 1     |
|---------------------------+--------------------------+------+--------+-------|
| __gap                     | uint256[49]              | 102  | 0      | 1568  |
|---------------------------+--------------------------+------+--------+-------|
| _status                   | uint256                  | 151  | 0      | 32    |
|---------------------------+--------------------------+------+--------+-------|
| __gap                     | uint256[49]              | 152  | 0      | 1568  |
|---------------------------+--------------------------+------+--------+-------|
| REMOVED_VARIABLE_SPACER_1 | bytes32                  | 201  | 0      | 32    |
|---------------------------+--------------------------+------+--------+-------|
| REMOVED_VARIABLE_SPACER_2 | bytes32                  | 202  | 0      | 32    |
|---------------------------+--------------------------+------+--------+-------|
| successfulMessages        | mapping(bytes32 => bool) | 203  | 0      | 32    |
|---------------------------+--------------------------+------+--------+-------|
| xDomainMsgSender          | address                  | 204  | 0      | 20    |
|---------------------------+--------------------------+------+--------+-------|
| msgNonce                  | uint256                  | 205  | 0      | 32    |
|---------------------------+--------------------------+------+--------+-------|
| otherMessenger            | address                  | 206  | 0      | 20    |
|---------------------------+--------------------------+------+--------+-------|
| receivedMessages          | mapping(bytes32 => bool) | 207  | 0      | 32    |
|---------------------------+--------------------------+------+--------+-------|
| blockedSystemAddresses    | mapping(address => bool) | 208  | 0      | 32    |
|---------------------------+--------------------------+------+--------+-------|
| portal                    | contract OptimismPortal  | 209  | 0      | 20    |
+---------------------------+--------------------------+------+--------+-------+

=======================
➡ L1StandardBridge
=======================

+-------------+-------------------------------------------------+------+--------+-------+
| Name        | Type                                            | Slot | Offset | Bytes |
+=======================================================================================+
| messenger   | contract CrossDomainMessenger                   | 0    | 0      | 20    |
|-------------+-------------------------------------------------+------+--------+-------|
| otherBridge | contract StandardBridge                         | 1    | 0      | 20    |
|-------------+-------------------------------------------------+------+--------+-------|
| deposits    | mapping(address => mapping(address => uint256)) | 2    | 0      | 32    |
+-------------+-------------------------------------------------+------+--------+-------+

=======================
➡ L2OutputOracle
=======================

+-------------------+----------------------------------------------------------+------+--------+-------+
| Name              | Type                                                     | Slot | Offset | Bytes |
+======================================================================================================+
| _initialized      | uint8                                                    | 0    | 0      | 1     |
|-------------------+----------------------------------------------------------+------+--------+-------|
| _initializing     | bool                                                     | 0    | 1      | 1     |
|-------------------+----------------------------------------------------------+------+--------+-------|
| __gap             | uint256[50]                                              | 1    | 0      | 1600  |
|-------------------+----------------------------------------------------------+------+--------+-------|
| _owner            | address                                                  | 51   | 0      | 20    |
|-------------------+----------------------------------------------------------+------+--------+-------|
| __gap             | uint256[49]                                              | 52   | 0      | 1568  |
|-------------------+----------------------------------------------------------+------+--------+-------|
| sequencer         | address                                                  | 101  | 0      | 20    |
|-------------------+----------------------------------------------------------+------+--------+-------|
| latestBlockNumber | uint256                                                  | 102  | 0      | 32    |
|-------------------+----------------------------------------------------------+------+--------+-------|
| l2Outputs         | mapping(uint256 => struct L2OutputOracle.OutputProposal) | 103  | 0      | 32    |
+-------------------+----------------------------------------------------------+------+--------+-------+

=======================
➡ OptimismPortal
=======================

+----------------------+----------------------------------------+------+--------+-------+
| Name                 | Type                                   | Slot | Offset | Bytes |
+=======================================================================================+
| _initialized         | uint8                                  | 0    | 0      | 1     |
|----------------------+----------------------------------------+------+--------+-------|
| _initializing        | bool                                   | 0    | 1      | 1     |
|----------------------+----------------------------------------+------+--------+-------|
| params               | struct ResourceMetering.ResourceParams | 1    | 0      | 32    |
|----------------------+----------------------------------------+------+--------+-------|
| __gap                | uint256[49]                            | 2    | 0      | 1568  |
|----------------------+----------------------------------------+------+--------+-------|
| l2Sender             | address                                | 51   | 0      | 20    |
|----------------------+----------------------------------------+------+--------+-------|
| finalizedWithdrawals | mapping(bytes32 => bool)               | 52   | 0      | 32    |
|----------------------+----------------------------------------+------+--------+-------|
| __gap                | uint256[48]                            | 53   | 0      | 1536  |
+----------------------+----------------------------------------+------+--------+-------+

=======================
➡ DeployerWhitelist
=======================

+-----------+--------------------------+------+--------+-------+
| Name      | Type                     | Slot | Offset | Bytes |
+==============================================================+
| owner     | address                  | 0    | 0      | 20    |
|-----------+--------------------------+------+--------+-------|
| whitelist | mapping(address => bool) | 1    | 0      | 32    |
+-----------+--------------------------+------+--------+-------+

=======================
➡ GasPriceOracle
=======================

+----------+---------+------+--------+-------+
| Name     | Type    | Slot | Offset | Bytes |
+============================================+
| _owner   | address | 0    | 0      | 20    |
|----------+---------+------+--------+-------|
| spacer0  | uint256 | 1    | 0      | 32    |
|----------+---------+------+--------+-------|
| spacer1  | uint256 | 2    | 0      | 32    |
|----------+---------+------+--------+-------|
| overhead | uint256 | 3    | 0      | 32    |
|----------+---------+------+--------+-------|
| scalar   | uint256 | 4    | 0      | 32    |
|----------+---------+------+--------+-------|
| decimals | uint256 | 5    | 0      | 32    |
+----------+---------+------+--------+-------+

=======================
➡ L1Block
=======================

+----------------+---------+------+--------+-------+
| Name           | Type    | Slot | Offset | Bytes |
+==================================================+
| number         | uint64  | 0    | 0      | 8     |
|----------------+---------+------+--------+-------|
| timestamp      | uint64  | 0    | 8      | 8     |
|----------------+---------+------+--------+-------|
| basefee        | uint256 | 1    | 0      | 32    |
|----------------+---------+------+--------+-------|
| hash           | bytes32 | 2    | 0      | 32    |
|----------------+---------+------+--------+-------|
| sequenceNumber | uint64  | 3    | 0      | 8     |
+----------------+---------+------+--------+-------+

=======================
➡ L1BlockNumber
=======================

+------+------+------+--------+-------+
| Name | Type | Slot | Offset | Bytes |
+=====================================+
+------+------+------+--------+-------+

=======================
➡ L2CrossDomainMessenger
=======================

+---------------------------+--------------------------+------+--------+-------+
| Name                      | Type                     | Slot | Offset | Bytes |
+==============================================================================+
| _initialized              | uint8                    | 0    | 0      | 1     |
|---------------------------+--------------------------+------+--------+-------|
| _initializing             | bool                     | 0    | 1      | 1     |
|---------------------------+--------------------------+------+--------+-------|
| __gap                     | uint256[50]              | 1    | 0      | 1600  |
|---------------------------+--------------------------+------+--------+-------|
| _owner                    | address                  | 51   | 0      | 20    |
|---------------------------+--------------------------+------+--------+-------|
| __gap                     | uint256[49]              | 52   | 0      | 1568  |
|---------------------------+--------------------------+------+--------+-------|
| _paused                   | bool                     | 101  | 0      | 1     |
|---------------------------+--------------------------+------+--------+-------|
| __gap                     | uint256[49]              | 102  | 0      | 1568  |
|---------------------------+--------------------------+------+--------+-------|
| _status                   | uint256                  | 151  | 0      | 32    |
|---------------------------+--------------------------+------+--------+-------|
| __gap                     | uint256[49]              | 152  | 0      | 1568  |
|---------------------------+--------------------------+------+--------+-------|
| REMOVED_VARIABLE_SPACER_1 | bytes32                  | 201  | 0      | 32    |
|---------------------------+--------------------------+------+--------+-------|
| REMOVED_VARIABLE_SPACER_2 | bytes32                  | 202  | 0      | 32    |
|---------------------------+--------------------------+------+--------+-------|
| successfulMessages        | mapping(bytes32 => bool) | 203  | 0      | 32    |
|---------------------------+--------------------------+------+--------+-------|
| xDomainMsgSender          | address                  | 204  | 0      | 20    |
|---------------------------+--------------------------+------+--------+-------|
| msgNonce                  | uint256                  | 205  | 0      | 32    |
|---------------------------+--------------------------+------+--------+-------|
| otherMessenger            | address                  | 206  | 0      | 20    |
|---------------------------+--------------------------+------+--------+-------|
| receivedMessages          | mapping(bytes32 => bool) | 207  | 0      | 32    |
|---------------------------+--------------------------+------+--------+-------|
| blockedSystemAddresses    | mapping(address => bool) | 208  | 0      | 32    |
+---------------------------+--------------------------+------+--------+-------+

=======================
➡ L2StandardBridge
=======================

+-------------+-------------------------------------------------+------+--------+-------+
| Name        | Type                                            | Slot | Offset | Bytes |
+=======================================================================================+
| messenger   | contract CrossDomainMessenger                   | 0    | 0      | 20    |
|-------------+-------------------------------------------------+------+--------+-------|
| otherBridge | contract StandardBridge                         | 1    | 0      | 20    |
|-------------+-------------------------------------------------+------+--------+-------|
| deposits    | mapping(address => mapping(address => uint256)) | 2    | 0      | 32    |
+-------------+-------------------------------------------------+------+--------+-------+

=======================
➡ L2ToL1MessagePasser
=======================

+--------------+--------------------------+------+--------+-------+
| Name         | Type                     | Slot | Offset | Bytes |
+=================================================================+
| sentMessages | mapping(bytes32 => bool) | 0    | 0      | 32    |
|--------------+--------------------------+------+--------+-------|
| nonce        | uint256                  | 1    | 0      | 32    |
+--------------+--------------------------+------+--------+-------+

=======================
➡ OVM_ETH
=======================

+--------------+-------------------------------------------------+------+--------+-------+
| Name         | Type                                            | Slot | Offset | Bytes |
+========================================================================================+
| _balances    | mapping(address => uint256)                     | 0    | 0      | 32    |
|--------------+-------------------------------------------------+------+--------+-------|
| _allowances  | mapping(address => mapping(address => uint256)) | 1    | 0      | 32    |
|--------------+-------------------------------------------------+------+--------+-------|
| _totalSupply | uint256                                         | 2    | 0      | 32    |
|--------------+-------------------------------------------------+------+--------+-------|
| _name        | string                                          | 3    | 0      | 32    |
|--------------+-------------------------------------------------+------+--------+-------|
| _symbol      | string                                          | 4    | 0      | 32    |
|--------------+-------------------------------------------------+------+--------+-------|
| remoteToken  | address                                         | 5    | 0      | 20    |
|--------------+-------------------------------------------------+------+--------+-------|
| bridge       | address                                         | 6    | 0      | 20    |
+--------------+-------------------------------------------------+------+--------+-------+

=======================
➡ SequencerFeeVault
=======================

+-------------+---------+------+--------+-------+
| Name        | Type    | Slot | Offset | Bytes |
+===============================================+
| l1FeeWallet | address | 0    | 0      | 20    |
+-------------+---------+------+--------+-------+

=======================
➡ WETH9
=======================

+-----------+-------------------------------------------------+------+--------+-------+
| Name      | Type                                            | Slot | Offset | Bytes |
+=====================================================================================+
| name      | string                                          | 0    | 0      | 32    |
|-----------+-------------------------------------------------+------+--------+-------|
| symbol    | string                                          | 1    | 0      | 32    |
|-----------+-------------------------------------------------+------+--------+-------|
| decimals  | uint8                                           | 2    | 0      | 1     |
|-----------+-------------------------------------------------+------+--------+-------|
| balanceOf | mapping(address => uint256)                     | 3    | 0      | 32    |
|-----------+-------------------------------------------------+------+--------+-------|
| allowance | mapping(address => mapping(address => uint256)) | 4    | 0      | 32    |
+-----------+-------------------------------------------------+------+--------+-------+

=======================
➡ ProxyAdmin
=======================

+--------------------+-----------------------------------------------+------+--------+-------+
| Name               | Type                                          | Slot | Offset | Bytes |
+============================================================================================+
| owner              | address                                       | 0    | 0      | 20    |
|--------------------+-----------------------------------------------+------+--------+-------|
| proxyType          | mapping(address => enum ProxyAdmin.ProxyType) | 1    | 0      | 32    |
|--------------------+-----------------------------------------------+------+--------+-------|
| implementationName | mapping(address => string)                    | 2    | 0      | 32    |
|--------------------+-----------------------------------------------+------+--------+-------|
| addressManager     | contract Lib_AddressManager                   | 3    | 0      | 20    |
|--------------------+-----------------------------------------------+------+--------+-------|
| upgrading          | bool                                          | 3    | 20     | 1     |
+--------------------+-----------------------------------------------+------+--------+-------+

=======================
➡ Proxy
=======================

+------+------+------+--------+-------+
| Name | Type | Slot | Offset | Bytes |
+=====================================+
+------+------+------+--------+-------+

=======================
➡ L1ChugSplashProxy
=======================

+------+------+------+--------+-------+
| Name | Type | Slot | Offset | Bytes |
+=====================================+
+------+------+------+--------+-------+

=======================
➡ OptimismMintableERC20
=======================

+--------------+-------------------------------------------------+------+--------+-------+
| Name         | Type                                            | Slot | Offset | Bytes |
+========================================================================================+
| _balances    | mapping(address => uint256)                     | 0    | 0      | 32    |
|--------------+-------------------------------------------------+------+--------+-------|
| _allowances  | mapping(address => mapping(address => uint256)) | 1    | 0      | 32    |
|--------------+-------------------------------------------------+------+--------+-------|
| _totalSupply | uint256                                         | 2    | 0      | 32    |
|--------------+-------------------------------------------------+------+--------+-------|
| _name        | string                                          | 3    | 0      | 32    |
|--------------+-------------------------------------------------+------+--------+-------|
| _symbol      | string                                          | 4    | 0      | 32    |
|--------------+-------------------------------------------------+------+--------+-------|
| remoteToken  | address                                         | 5    | 0      | 20    |
|--------------+-------------------------------------------------+------+--------+-------|
| bridge       | address                                         | 6    | 0      | 20    |
+--------------+-------------------------------------------------+------+--------+-------+

=======================
➡ OptimismMintableTokenFactory
=======================

+--------+---------+------+--------+-------+
| Name   | Type    | Slot | Offset | Bytes |
+==========================================+
| bridge | address | 0    | 0      | 20    |
+--------+---------+------+--------+-------+
