Consensus Mechanism

Sui utilizes a DAG in the form of its mempool engine, Narwhal, which is decoupled from its consensus engine, Bullshark.

Sui uses an object-oriented data model. Distinct objects on Sui include a coin balance, an NFT instance, and a smart contract. This data model allows smart contracts to express computation on objects. It also means transactions are naturally organized in groups based on the objects they are targeting.