What Is a Relay Chain?

A relay chain is a type of blockchain that acts as a central hub or "relay" for multiple other blockchains to connect to and interact with. The relay chain enables cross-chain communication and transactions by allowing different blockchains to share a common set of validators, or "relayers," responsible for verifying and propagating transactions across the network. A practical example of a relay chain could be a network of blockchains for different supply chains participants, such as manufacturers, distributors, and retailers.…