Somnia's MultiStream consensus offers several notable security benefits:
Finality and Fork Protectiom: While each validator runs its own independent "data chain" without internal consensus, these individual data chains are ultimately secured by a separate global consensus chain. This consensus chain, using a modified Practical Byzantine Fault Tolerance (PBFT) algorithm, includes the latest block (head) of every data chain in its blocks. This prevents validators from forking or double-spending on their individual chains because any conflicting data forks would be rejected by the global consensus chain, ensuring network-wide agreement on a single global state.
Deterministic Sequential Execution: Despite parallel data production across multiple chains, the network orders and executes all transactions in a deterministic, sequential order. This avoids unpredictable outcomes or conflicts often seen in parallel execution models, preserving the integrity and consistency of smart contract states and accounts.
