Cross-Chain
Also known as: Blockchain Interoperability, Cross-Chain Communication, Multi-Chain Connectivity
The ability for different blockchain networks to communicate, transfer assets, and execute operations between each other.
Cross-chain technology enables interaction between independent blockchain networks, allowing the transfer of assets, data, and commands across chains. This interoperability is essential for decentralized finance (DeFi), where assets may exist on multiple platforms. Solutions include bridges, wrapped tokens, and cross-chain messaging protocols like IBC (Inter-Blockchain Communication), LayerZero, and Chainlink CCIP. Cross-chain functionality allows developers to build dApps that combine liquidity, governance, or functionality from different ecosystems. However, it also introduces security challenges, such as bridge hacks and validator misbehavior.