Common Prefix is collaborating with Snowfork in the development of Snowbridge. Snowbridge is an efficient light client for transferring assets from Polkadot to Ethereum. It leverages probabilistic checking of the Polkadot validators’ signatures on consensus blocks finalized by the Polkadot finality gadget called Grandpa. Snowbridge builds on Beefy, an efficiency/compatibility gadget deployed on top of Grandpa. We work closely with the Snowfork team to analyze their protocol at both the scientific and code level. Namely, we have performed a security audit on Snowfork’s Beefy Client smart contracts and a scientific review of the Snowbridge protocol.