Bridging SNT with the Optimism SDK

This repository contains code to deploy SNT in Ethereum and bridge it to optimism.

Deployments

Contract	Address	Snapshot
Optimism Mainnet
OptimismMintableMiniMeToken	0x650AF3C15AF43dcB218406d30784416D64Cfb6B2	1b3159a
SNTOptimismController	0x76352764590378011CAE677b50110Ae02eDE2b62	1b3159a
Optimism Goerli
OptimismMintableMiniMeToken	0xcAD273fA2bb77875333439FDf4417D995159c3E1	dc28b89
SNTOptimismController	0x650AF3C15AF43dcB218406d30784416D64Cfb6B2	dc28b89
Optimism Sepolia
OptimismMintableMiniMeToken	0x650AF3C15AF43dcB218406d30784416D64Cfb6B2	1b3159a
SNTOptimismController	0x76352764590378011CAE677b50110Ae02eDE2b62	1b3159a
Optimism Goerli
OptimismMintableMiniMeToken	0x0B5DAd18B8791ddb24252B433ec4f21f9e6e5Ed0	b6f50cf
SNTOptimismController	0x35Cded11D75cC10d38ED4456b8caDC9F36E85E42	b6f50cf

Scripts:

$ MNEMONIC=$YOUR_MNEMONIC forge script script/DeployBridge.s.sol --fork-url $YOUR_RPC_URL --broadcast

Where

• $YOUR_MNEMONIC is the mnemonic that contains the account from which you want to deploy. The deploy script will use the first account derived from the mnemonic by default.
• $YOUR_RPC_URL is the RPC endpoint of the node you're connecting to.

You can omit the --broadcast option to simulate the deployment before actually performing it.

All tokens, even on Optimism, are MiniMeToken variant, meaning they save all account's balance change on Ethereum state for democracy contract ballots. Learn more about MiniMeToken on the official repository vacpp2p/minime.

Differences from regular MiniMeToken

The MiniMeToken used in this repository is a fork of the original. To learn about the differences between the fork and the upstream repository, head over to its documentation.

1. There are 2 functions to mint/burn, one is mint() & generateTokens(), and other is burn() & destroyTokens(). One come from MiniMeToken inheritance, and other comes from IOptimismMintableERC20 inheritance. See more on point 2.
2. MiniMeToken controller (SNTPlaceHolder) is also deployed on Optimism, and it could be replaced by another controller that could call generateToken function, potentially breaking the bridge, however, if we don't do this change, than it should be fine.
3. MiniMeTokenFactory used in createCloneToken create new MiniMeTokens that are one inheritance down from OptimismMintableMiniMeToken, this is fine, just strange, but it couldnt be different, as clone tokens are not suppoused to be minted by bridge. This function is not even used by us.
4. MiniMeToken version() had to be renamed to token_version() due a conflict on inheritance and requirements of Optimism. Semver inheritance uses version() and this seems a requirement for Optimism.