Hyperbridge Protocol is a decentralized coprocessor model designed to enable secure, scalable cross-chain communication. It verifies multiple types of blockchain proofs off-chain and reports them back on-chain with cryptographic guarantees, solving the scalability limitations of direct on-chain proof verification. By aggregating the finalized states of multiple chains into a single proof, Hyperbridge allows any blockchain to trustlessly interoperate. It also introduces a permissionless network of incentivized relayers to transmit messages across chains without requiring whitelisting or staking.