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# System prepended metadata

title: Development Update week 9

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## Development Update week 9

- Started an mvp implementation of a reth-based-relay. Currently working on validating payloads received from builders and validating using reth. 
Question: Can we validate blocks using reth db bypassing the json-rpc? (Its insane to quering own nodes over json-rpc). Interacting with the database would be 10x-100x efficient over the json-rpc.
PR link: https://github.com/ralexstokes/mev-rs/pull/139

- Since the launch of reth v0.1.0.alpha-10 some api's have changed with some revm stuff. Worked on updating these apis: 
PR link: https://github.com/ralexstokes/mev-rs/pull/144


Also working on a reth p2p crawler with some other folks.
Issue description: https://github.com/paradigmxyz/reth/issues/4778
Implementation: https://github.com/Keep-Reth-Strange/reth-crawler