LayerZero is an omnichain interoperability protocol designed for lightweight message passing across chains. LayerZero provides authentic and guaranteed message delivery with configurable trustlessness.
LayerZero is a user application UA configuration on a on-chain endpoint that runs a ULN. LayerZero relies on the two parties to transfer messages between on-chain endpoints: the oracle and the relayer. When a UA sends a message from chain A to chain B, the message is routed through the endpoint on chain A. The endpoint then notifies the UA specified Oracle and Relayer of the message and it's destination chain. The Oracle forwards the block header to the endpoint on chain B and the Relayer then submits the transaction proof. The proof is validated on the destination chain and the message is forwarded to the destination address.
