Is there a way to read mainnet data from a Base contract?

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Some wizardry that @wilsoncusack built perhaps?

I need to make a demo of this, but yes https://twitter.com/WilsonCusack/status/1752726749585227911?s=20

For now, found this. https://github.com/madlabman/eip-4788-proof. 

You'd want to use this as the root to verify a proof, probably use

For now, found this. https://github.com/madlabman/eip-4788-proof. 

You'd want to use this as the root to verify a proof, probably use https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/libraries/trie/SecureMerkleTrie.sol

literally had that thought last night - massive unlock!