Summary

This proposal upgrades the KromaPortal contract to include emergency fund recovery features following the shutdown of the Kroma L2 chain.

New Implementation Address

https://etherscan.io/address/0x929937A7A065B35F983147349cC312920660c691

Key Features Added

1. **Emergency Shutdown Mode**: Allows authorized parties to activate emergency state

2. **Direct Emergency Withdrawal**: Bypasses L2 validation for fund recovery

Authorization and Withdrawal Model

- TallyDAO approves the implementation upgrade

- Emergency Multisig (same wallet that controls ChainAdmin for ZKcandy Mainnet) will handle the steps of activating Emergency Shutdown and then executing the EmergencyWithdrawal function, sending all ETH to the Emergency Multisig

- Funds will be bridged to ZKcandy and transferred into a Snapshot-based Withdrawal Smart Contract and a UI for that will be available for users to claim from

Execution Plan

1. **Upgrade**: Upgrade proxy implementation via vote

2. **Activation**: Multisig activates emergency shutdown

3. **Recovery**: Execute emergency withdrawal to multisig

4. **Distribution**: Implement snapshot-based withdrawal system on ZKcandy Mainnet

Community Benefit

This upgrade is essential for protecting user funds following the L2 chain shutdown, providing a secure and transparent path to fund recovery.