The OZ Votes storage proof strategy on Snapshot X uses delegated balances stored in specific slots on an EVM chain as voting power. This strategy focuses on verifying delegated voting power for tokens using ERC-20 Votes or ERC-721 Votes, utilizing the trace 224 or 208 format. It leverages storage proofs to ensure data integrity of delegated balances when used on layer 2. Currently, this strategy is only available on Starknet.
To set up this strategy, you need to:
Add the Ethereum mainnet or Sepolia testnet contract address.
Find the storage slot where delegated balances are stored in the contract using https://storage.herodotus.dev.
On the Herodotus site, enter the contract address and select the network.
Locate the index where the delegated balances are stored on the contract.
For example, for the ENS ERC-20 token, the delegated balances are stored in the slot index 7.
If you need help, contact our support team, we will be happy to assist you.