Karthik Inbasekar of Ingonyama explores implementations of bridge constructions using Zero Knowledge Proofs (ZKP’s).
The bridge construction covered in the post are:
- Succinct verification of consensus with zkSNARKS (Succinct Labs): Implementation of Ethereum PoS (Proof of Stake) light client with a single zk-SNARK.
- Bringing IBC (Inter Blockchain Communication) to Ethereum with zkSNARKS (Electron Labs): A working prototype on Cosmos SDK (Tendermint) to Ethereum light client with a single zk-SNARK.
- zkbridge: Trustless Cross-chain Bridges Made Practical (Berkley RDI): Implementation of Cosmos SDK to Ethereum light client using a 2 step recursive zk-SNARK, light client for Ethereum to EVM compatible blockchain (not covered in the post)

You can read the full post at https://medium.com/@ingonyama/bridging-the-multichain-universe-with-zero-knowledge-proofs-6157464fbc86
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