Blockchain Bridge

A blockchain bridge is a protocol that connects two separate blockchain networks, allowing users to transfer assets, data, or tokens between them. Since blockchains are isolated by design, bridges solve the interoperability problem by locking assets on one chain and minting equivalent representations on another. Bridges can be centralized (operated by a trusted entity) or decentralized (secured by smart contracts and validators). Bridge security is a major concern, as several high-profile hacks have targeted bridge contracts.