Cross-Chain Interoperability Goals

One of Meter's goals is maximizing interoperability with other public blockchains. Meter Passport is a multi-chain router and enables smart contracts to both transfer assets and communicate across blockchains.

The initial implementation of Meter Passport is based on multi-sig contract secured by five relayers including Protofire, Harshquark, Wetez, InfinityStones, and Meter team. The upcoming v2 version will support an unlimited number of relayers running consensus on the status of the source chains through the HotStuff consensus on Meter and create threshold signature based verifications.