An Introduction to Sui Blockchain

Jan HetfleiĊĦ
on Mar 2, 2023

Blockchain technology is a game changer in the world of data storage, financial transactions and asset management. It has introduced new platforms and protocols that promise to transform various industries with their unique features and capabilities. Sui blockchain is one such blockchain platform that has been making headlines in recent months. Developed by Mysten Labs (a company founded by former Facebook employees who worked on the Libra project), the Sui blockchain aims to provide a more efficient and scalable infrastructure for web3 applications. In this article, we will take a closer look at the main features and functions of the Sui blockchain.

What is Sui Blockchain?

Sui blockchain (currently in Testnet phase) is a new layer 1 blockchain using Delegated Prove of Stake consensus. It aims to provide fast, low latency transactions and allow developers to create experiences for average users.

Sui operates in a series of epochs, with each epoch lasting 24 hours. A committee of validators is responsible for overseeing each epoch. The group of validators is decentralized and reconstitutes itself after each epoch.

Users have the option of delegating their stakes to validators, which allows them to consolidate their voting power and receive part of the fees. The Sui network retains its security features as long as a quorum of two-thirds of the total stake is allocated to honest parties.

To increase their capacity, validators can use intra-validator sharding to scale horizontally. Nodes can expand their resources by allocating additional CPU, memory and storage within a single machine or across multiple machines.

As a result, the network is capable of processing over 100,000 TPS, making it one of the fastest blockchain platforms on the market. This also means that Sui is highly scalable - it can accommodate large numbers of users without compromising performance or security. 

Such a large TPS is possible thanks to transaction parallelization. In most blockchains, transactions are executed sequentially - or one at a time. This prevents some competition between transactions and duplication. But it also limits throughput.

Regarding fees, Sui takes a dynamic approach through a price-setting mechanism. At the beginning of each epoch, validators vote on a network-wide reference price. This gives users more predictable gas fees.

Move and Sui blockchain

In addition to its own unique features, Sui blockchain also uses Move, a programming language designed specifically for blockchain applications.

It was created with the intention of solving problems within Solidity. Move is designed to represent digital assets and perform secure operations on them. 

Move is known for its security features, which include automated resource management and strict data type checking. This helps to prevent common errors and vulnerabilities that can compromise the security of blockchain applications.

Another interesting characteristic of Move is that it uses objects. These objects have ownership that dictates how they are used in transactions. The most common is owned by an address. In this case, Move object is transferred to other address, after which it becomes the property of the receiving address. Then there is ownership by another object, immutable (for objects that cannot be changed, like smart contracts) and shared (anyone can read or write).

By using Move, Sui blockchain is able to provide a more secure and user-friendly platform for developers to build and deploy dApps. 

Key advantages and disadvantages of the Sui blockchain


  • Faster transactions: Sui blockchain's use of the delegated proof-of-stake (DPoS) consensus mechanism makes it one of the fastest blockchain platforms on the market.
  • Scalability: Sui's design makes it highly scalable, meaning it can handle a large volume of transactions without compromising performance. 
  • Lower transaction fees: Due to its faster transaction processing and scalable design, Sui offers lower transaction fees.
  • Energy Efficient: Sui's DPoS consensus mechanism requires less computing power and energy consumption, making it very energy efficient.


  • Security: Although the Sui blockchain is designed to be secure, the smaller number of block producers on the Sui blockchain may make it more vulnerable to attacks.
  • Limited decentralization: The smaller number of block producers also results in limited decentralization. This may make it less resistant to censorship and more susceptible to manipulation.
  • Adoption: As a relatively new blockchain network, Sui may face challenges in terms of adoption and getting more users and developers to use its platform.

It's important to note that these advantages and disadvantages may evolve over time as the Sui blockchain network and technology develop.


Sui is a promising new platform that provides a fast, efficient and scalable infrastructure for web3 applications. With its focus on interoperability and ease of use, Sui is well-positioned to become a popular choice for developers and users alike. While there are some concerns about its centralization and security risks, these are issues common to most blockchain platforms and are being addressed through ongoing development and innovation.

By adopting Move as its main programming language, Sui blockchain is able to provide a more secure and user-friendly platform for developers to build and deploy dApps. As the Sui network and technology continue to evolve, it will be interesting to see how it compares to other blockchain platforms and how it contributes to the growing web3 ecosystem.


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