Sui uses objects as its basic unit of data storage rather than accounts, as happens on most other blockchains. Developers define, create, and manage these programmable objects that represent user-level assets. An object has distinct attributes, including ownership, whose values can be updated based on the governing logic of the smart contract that created it.

SUI tokens serve four purposes on the network:

• They can be staked to a validator in order to secure the network and earn stake rewards.
• They can be used to pay gas fees to execute transactions and other operations.
• They act as the native asset to facilitate on-chain transactions underpinning the whole Sui economy.
• They give holders the right to participate in future governance.

The total supply of SUI is capped at 10 billion tokens.