Plonky2
Plonky2 is a sophisticated recursive SNARK, well-known for its much greater speed compared to many other options. By combining the advantages of PLONK and FRI, it provides the rapidity of STARK and the advantages of SNARK, such as affordable Ethereum verification and support for recursion. Users require only keccak-256 to validate a proof, and with possible updates such as EIP-4488, the verification cost on Ethereum could be significantly lowered.
