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Foundations · easy

1. Introduction to Sui Move

Object-centric architecture and parallel execution.

1 min read3 questionsup to 50 XPtopic 1/25

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Sui Move is an object-centric evolution of the Move language. Unlike account-centric blockchains (where state lives inside accounts), Sui organizes all storage into globally unique Objects with distinct 32-byte IDs.

move
module my_package::hello_world {
    use std::string::String;
    use sui::object::{Self, UID};
    use sui::tx_context::TxContext;

    public struct Greeting has key, store {
        id: UID,
        text: String,
    }
}

Because transactions declare which objects they read and write upfront, Sui executes transactions touching independent objects in parallel via Narwhal/Bullshark consensus without global locks.

How to study this topic

  1. 1. Read the explanation once end to end, skipping the code.
  2. 2. Re-read the code snippets and say out loud what each line does.
  3. 3. Answer the quiz without scrolling back — that is the real check.
  4. 4. Read every explanation, even for the answers you got right.

Scoring

  • · Up to 30 XP from quiz accuracy.
  • · +15 XP for a perfect first attempt.
  • · +5 XP while a 3-day streak is running.
  • · 75% or higher marks the topic complete.

Check your understanding

  1. 1. What is the core data storage model of Sui Move?

  2. 2. How does Sui execute transactions touching non-overlapping objects in parallel?

  3. 3. What must the first field of an on-chain Sui object struct always be?

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