Base Chain
On Base Chain, the Base Governance Multisig, a 2-of-2 multisig made up of the Base Coordinator Multisig and the Base Security Council, can instantly replace the code of 13 core contracts.

On a small screen, swipe sideways across the painting.
In the room
Team multisig
Base Governance Multisig
- Signatures
- 2/2
- Delay
- None, instant
- Holds
- 13 core keys · instant
Signers include Base Coordinator Multisig (3/6) and Base Security Council (8/11).
See the 28 keys
Core contracts
- DisputeGameFactory
- OptimismPortal2
- L1StandardBridge
- L1CrossDomainMessenger
- TEEProverRegistry
- DelayedWETH
- DelayedWETH
- AnchorStateRegistry
- DelayedWETH
- L2CrossDomainMessenger · on the L2
- L2StandardBridge · on the L2
- L2ToL1MessagePasser · on the L2
- ProxyAdmin · on the L2
Peripheral
- SystemConfig
- SuperchainConfig
- L1ERC721Bridge
- OptimismMintableERC20Factory
- ProtocolVersions
- SequencerFeeVault · on the L2
- OptimismMintableERC20Factory · on the L2
- L1BlockNumber · on the L2
- L2ERC721Bridge · on the L2
- L1Block · on the L2
- OptimismMintableERC721Factory · on the L2
- BaseFeeVault · on the L2
- L1FeeVault · on the L2
- SchemaRegistry · on the L2
- EAS · on the L2
Single key
EOA 2
- Delay
- None, instant
- Holds
- 1 peripheral key only
See the 1 key
Peripheral
- FeeDisburser · on the L2
Not in the painting
2 upgradable contracts have no key-holder named in the data, so they are not hung on the rack: wstETHEscrow, SkyLink Bridge (admin renounced).
Other roles, no upgrade keys
- Base Multisig 1 · 3/12 · Can interact with SystemConfig
- EOA 1 · Can interact with SystemConfig
- EOA 3 · Can interact with TEEProverRegistry
Snapshot of 23 October 2026. Live permissions on L2BEAT ↗