Bankless StarkWare Sessions #7 | Herodotus Cross-Chain Data
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Feb 11, 2023 
Kacper Kozio, co-founder of Herodotus, dives into the cutting-edge realm of cross-chain data interoperability. He elaborates on how Herodotus leverages ZK proofs to enhance data access, unlocking innovative applications in decentralized finance. The discussion highlights the significance of storage proofs, inter-layer loans, and simplified fund recovery. Kacper also shares insights from StarkWare Sessions in Tel Aviv, painting a picture of the future of web3 where improved blockchain interactions and user-friendly APIs are set to shape the landscape.
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Limitations of Smart Contracts
- Smart contracts can only access their own storage and, to a limited extent, the storage of other contracts on the same chain, limiting their functionality.
- Herodotus aims to add two dimensions to this: access to data on other chains and access to historical data.
Snapshot X Use Case
- Snapshot X uses Herodotus' storage proofs to prove ownership of Layer 1 assets on StarkNet, allowing for gas-efficient voting.
- This eliminates bridging for voting, allowing users to keep assets secure on the main chain while participating in L2 governance.
Cross-Chain Lending
- Storage proofs enable cross-chain lending, allowing users to lock assets on L1 and borrow on L2.
- This maintains L1 security while enabling participation in L2 DeFi, such as chain arbitrage.