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chore: add guide on verifying delegate contracts on Etherscan #13

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chore: add guide on verifying delegate contracts on Etherscan
igorroncevic Jul 9, 2026
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igorroncevic Jul 9, 2026
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4 changes: 1 addition & 3 deletions .gitignore
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Original file line number Diff line number Diff line change
Expand Up @@ -6,9 +6,7 @@ out/**
!out/Solver7702Delegate.sol/Solver7702Delegate.json

# Ignores development broadcast logs
!/broadcast
/broadcast/*/31337/
/broadcast/**/dry-run/
broadcast/
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# Docs
docs/
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35 changes: 35 additions & 0 deletions README.md
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Expand Up @@ -159,6 +159,41 @@ cast send 0x0000000000000000000000000000000000000000 \

Then verify that `cast code <solver_eoa>` no longer points to the previous delegate, using the [same verification method as before](#verify-delegation).

### Contract verification

Etherscan marks solver EOAs as a **Similar Match** after one matching delegate contract is verified on the same chain. Instead of verifying every solver EOA from Rust, deploy and verify one dummy delegate per chain.

Set `APPROVED_CALLERS` to five zero addresses and set `ETHERSCAN_API_KEY`. Foundry reads the same Etherscan key from the environment for every chain.

```shell
export ZERO_ADDRESS=0x0000000000000000000000000000000000000000
export APPROVED_CALLERS=${ZERO_ADDRESS},${ZERO_ADDRESS},${ZERO_ADDRESS},${ZERO_ADDRESS},${ZERO_ADDRESS}
export ETHERSCAN_API_KEY=<etherscan_api_key>

just build && forge script script/DeploySolver7702Delegate.s.sol:DeploySolver7702Delegate \
--rpc-url <your_rpc_url> \
--private-key <your_private_key> \
--broadcast \
--verify \
--verifier etherscan
```

If the dummy delegate is already deployed and only needs verification:

```shell
export ZERO_ADDRESS=0x0000000000000000000000000000000000000000
export APPROVED_CALLERS=${ZERO_ADDRESS},${ZERO_ADDRESS},${ZERO_ADDRESS},${ZERO_ADDRESS},${ZERO_ADDRESS}
export ETHERSCAN_API_KEY=<etherscan_api_key>

forge verify-contract <deployed_delegate_address> src/Solver7702Delegate.sol:Solver7702Delegate \
--chain <chain_id> \
--constructor-args $(cast abi-encode "constructor(address[5])" "[${APPROVED_CALLERS}]") \
--verifier etherscan \
--watch
```

After the dummy delegate is verified, later solver EOAs with the same delegate bytecode will be verified automatically by Etherscan's "Similar Match" feature.

## Development

### Just commands
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