Definition
Cross-chain is a concept that describes communication and interaction between separate blockchain networks. It focuses on enabling assets, messages, or information to move or be recognized across chains that normally operate independently. In a cross-chain context, different blockchains can coordinate so that activity on one chain can be reflected or acknowledged on another.
The term is often used to describe architectures and designs that reduce isolation between blockchains. Instead of each chain functioning as a closed system, cross-chain setups aim to create a broader, interconnected environment. This concept underpins many designs in decentralized finance, where value and data may span multiple networks rather than remaining locked to a single chain.
In Simple Terms
Cross-chain means different blockchains are able to talk to each other in some structured way. It allows information about balances, transactions, or other data on one chain to be linked with what happens on another chain. This makes it possible for value and activity to be coordinated across multiple networks instead of staying on just one.
As a concept, cross-chain does not refer to one specific technology, but to the general idea of blockchains being connected rather than isolated. It highlights the goal of making separate chains part of a larger, interoperable ecosystem, especially in areas like decentralized finance where many networks coexist.