https://starkware.co/blog/proving-ethereums-state-on-starknet-with-herodotus/
Herodotus: Ethereum State Verification | StarkWare
ethereum stateherodotus
https://tokenflow.live/blog/querying-state/
Querying Ethereum State with the Ethereum Data Warehouse - Token Flow
Feb 22, 2024 - EDW major feature is a detailed history of state and storage changes. It enables new types of queries by directly using variables of smart contracts.
ethereum statedata warehouse