Sui is a decentralized permissionless smart contract platform based towards low-latency management of assets. It uses the Move programming language to define assets as objects that may be owned by an address. Move programs define operations on these typed objects including custom rules for their creation, the transfer of these assets to new owners, and operations that mutate assets.

Sui is maintained by a permissionless set of authorities that play a role similar to validators or miners in other blockchain systems. It uses a Byzantine consistent broadcast protocol between authorities to ensure the safety of common operations on assets, ensuring lower latency and better scalability as compared to Byzantine agreement. It only relies on Byzantine agreement for the safety of shared objects. As well as governance operations and checkpointing, performed off the critical latency path. Execution of smart contracts is also naturally parallelized when possible. Sui supports light clients that can authenticate reads as well as full clients that may audit all transitions for integrity. These facilities allow for trust-minimized bridges to other blockchains.

SUI Token

The SUI token serves four purposes on the Sui platform:

SUI can be staked within an epoch in order to participate in the proof-of-stake mechanism.

SUI is the asset denomination needed for paying the gas fees required to execute and store transactions or other operations on the Sui platform.

SUI can be used as a versatile and liquid asset for various applications including the standard features of money – a unit of account, a medium of exchange, or a store of value – and more complex functionality enabled by smart contracts, interoperability, and composability across the Sui ecosystem.

SUI token plays an important role in governance by acting as a right to participate in on-chain voting on issues such as protocol upgrades.