how-sui-works.md

title
How Sui Works

Sui is a distributed ledger that stores a collection of programmable objects, each with a globally unique ID. Every object is owned by a single address, and each address can own an arbitrary number of objects.

The ledger is updated via a transaction sent by a particular address. A transaction can create, destroy, and write objects, as well as transfer them to other addresses.

Structurally, a transaction contains a set of input object references and a pointer to a Move code object that already exists in the ledger. Executing a transaction produces updates to the input objects and (if applicable) a set of freshly created objects along with their owners. A transaction whose sender is address A can accept objects owned by A, shared objects, and objects owned by other objects in the first two groups as input.

flowchart LR
    CC(CLI Client) --> ClientService
    RC(Rest Client) --> ClientService
    RPCC(RPC Client) --> ClientService
    ClientService --> AuthorityAggregator
    AuthorityAggregator --> AC1[AuthorityClient] & AC2[AuthorityClient]
    subgraph Authority1
      AS[AuthorityState]
    end
    subgraph Authority2
      AS2[AuthorityState]
    end
    AC1 <==>|Network TCP| Authority1
    AC2 <==>|Network TCP| Authority2

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Sui authorities agree on and execute transactions in parallel with high throughput using Byzantine Consistent Broadcast.