zk bridge

Simply put, the implementation mechanism of zk bridge is light client + zk.

The light client realizes cross-chain with minimal trust, and zk greatly optimizes the cost. (Generate zk proof off-chain and verify on-chain)

For IBC, the light client of the target chain needs to verify the cross-chain data packet to prove that the source chain has indeed undergone a state transition; while for the zk bridge, the light client only needs to verify the zk certificate. #crosschain

14/n🧵