Lachesis Meaning

The consensus mechanism used by the Fantom network. It is a directed acyclic graph (DAG)-based asynchronous Byzantine Fault Tolerant (aBFT) engine.

Unlike traditional chains that wait for a block to be completed before moving to the next, Lachesis allows transactions to be processed asynchronously, meaning nodes don't have to wait for each other to reach a global state. This architecture results in "deterministic finality," where a transaction is considered finalized as soon as it is processed, usually in under two seconds.

It eliminates the need for "confirmations" and significantly reduces the risk of "reorgs" (chain reorganizations). This makes it highly suitable for high-speed DeFi applications where execution time is critical.

Lachesis is designed to be "leaderless," meaning no single node has a special role in proposing blocks. This increases security by making the network more resistant to DDoS attacks targeting specific leaders.

It represents an evolution in consensus design, focusing on maximizing throughput and speed without sacrificing the security of the underlying ledger.