Cross Chain Bridges
By utilizing 3-4 DAPP Network services a cross chain bridge can be established
The smart contract code, local environment setup, and unit tests for running an example EOSIO <> ETH fungible token bridge may be found here: https://github.com/liquidapps-io/zeus-sdk/tree/master/boxes/groups/sample/ethtokenpeg
Below are some bridges which are currently in production, they are both EOSIO <> ETH bridges.
EOSIO <> ETH Bridges