> For the complete documentation index, see [llms.txt](https://crosschain-alliance.gitbook.io/hashi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://crosschain-alliance.gitbook.io/hashi/getting-started/quick-start/verifying-foreign-event.md).
# Verifying foreign event
This example demonstrates the validation of a `Transfer` Event from an ERC-20 contract on the Sepolia network using an event proof on the Chiado network. The proof is retrieved via an API call and provided to a custom contract to be deployed on Chiado. The contract utilizes the `HashiProver` helper library to verify the proof against the latest block header recorded in Hashi.
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