In one of the demos from Denver, there was mentioned something about ZK roll ups eliminating the signature step in metamask. Could someone clarify that? What aspect of OPL involves ZK?

Question

vishal · Accepted Answer

A ZK bridge or other oracle could eliminate the “Push Vote Weight” step, because then Sapphire would just know how many VOTE tokens you have on BSC Testnet(the one used in the demo). There are bridges that use ZK proofs to authenticate messages to other chains, and multichain launched one. Professor Dawn Song’s research group also created one and OPL uses the bridge as an api, so it benefits from the stronger security properties of ZK immediately.

Demo mentioned: A privacy layer for Web3: Unlock the potential of Web3 with the Oasis Privacy Layer with Nick Hynes