Chain Dependency

Definition ∞ Chain dependency describes the reliance of one blockchain or decentralized application on the operational status, data integrity, or security of another blockchain. This inter-chain relationship means that issues on the dependent chain can directly impact the functionality or security of the relying chain. Such dependencies are common in cross-chain bridges, layer-2 solutions, and multi-chain protocols. A disruption to the foundational chain can propagate negative effects across its entire ecosystem.
Context ∞ The current discussion around chain dependency often concerns the resilience and security implications of interconnected blockchain ecosystems. Developers continually work to mitigate these risks through robust bridge designs, redundant data feeds, and improved consensus mechanisms. Ensuring the stability of underlying chains is paramount for the overall health and security of the broader decentralized network.