What Is StarkEx? Complete Guide to Ethereum Layer 2 Scaling

Introduction

Ethereum has paved the way for thousands of decentralized applications (dApps), NFT marketplaces, crypto exchanges, and Web3 projects. But with the increase in adoption, the problems associated with it have also increased. Two of the most significant drawbacks of Ethereum are its fees and transaction throughput, which can become cost-prohibitive and inefficient for applications that require thousands, if not millions, of transactions.

StarkEx is the solution. When analysing, many consider StarkEx as Starknet or another blockchain or cryptocurrency. In fact, StarkEx is a Layer 2 scaling engine designed by StarkWare, specifically for use with applications that help businesses create high-performance applications without losing the security of Ethereum.

This guide covers the basics of Ethereum scaling, including ZK tech, and why some of the top Ethereum layer-two options, such as Immutable X, dYdX and Sorare, have opted for StarkEx. . We are going to discuss StarkEx, its use, the distinction between StarkEx and Starknet as well as its role in the blockchain world.

Key Takeaways

• StarkEx is a StarkWare scaling an application layer 2 solution to Ethereum. 
• It features efficient zk-STARK validity proofs with Ethereum for processing and settlement security.
• StarkEx offers services to high-performance applications, including crypto exchanges, NFT marketplaces, blockchain games, and enterprise platforms.
• StarkEx is not a permissionless smart contract network, unlike Starknet. It can be scaled on a per-application basis.
• In fact, some of the largest Web3 platforms such as Immutable X, dYdX, Sorare, and rhino.fi have all welcomed StarkEx for its scalable and cost-reduction benefits.

What Is StarkEx?

In order to enable decentralized applications to process a high volume of transactions efficiently, StarkEx is an application-specific Layer 2 scaling solution developed by StarkWare that maintains Ethereum’s security.

Unlike all transactions on Ethereum, StarkEx makes most of them off-chain. It then produces so-called zk-STARK validity proofs that are submitted to Ethereum for verification. This not only helps to manage higher volumes of transactions without any congestion but also cuts down on transaction expenses.

An important thing that a lot of articles fail to mention is that StarkEx is not a blockchain as it doesn’t have its own native token. Instead, it’s an infrastructure solution that allows individual applications to scale without leaving the Ethereum blockchain to settle transactions.

To make this clear, a simple comparison is made.

StarkEx will not replace Ethereum, but rather build atop it, enabling it to execute transactions in a more efficient manner and still use Ethereum for the final settlement.

Why Was StarkEx Created?

Before diving into StarkEx, let’s recap the issue that it addresses.

Ethereum is one of the most secure and widely used blockchain networks; however, it is also one of the most popular, which is causing scalability issues.

The more users use a decentralized application, the network goes through:

• Higher gas fees
• Slow transaction processing at peak demand times.
• Limited throughput
• Increased costs for applications with frequent transactions

These restrictions are particularly apparent for the applications that require a high number of transactions to be processed in less time and at affordable costs, like crypto exchanges, NFT marketplace applications, and blockchain games.

StarkWare came up with StarkEx to solve these issues.

With StarkEx, many transactions are bundled together, and a cryptographic validity proof is created, which is sent to Ethereum instead of asking it to verify each transaction separately. This decreases on-chain computation with the same security guarantees as Ethereum.

We believe this application-centric solution is ideally suited for platforms with regular performance needs and high transaction counts, where StarkEx can be used.

How Does StarkEx Work?

One of the most common complaints we hear from our readers is not knowing what happens when a user makes a transaction. There are plenty of articles that just say StarkEx is utilising zk-STARKs, but it’s not explained here in a digestible manner.

In principle, StarkEx functions in the following manner:

1. A user makes a transaction using a StarkEx-powered application.
2. An application submits the transaction to the StarkEx engine.
3. StarkEx aggregates several transactions into one.
4. A zk-STARK proof is created to verify them all in one go.
5. The proof is sent to Ethereum for verification.
6. Ethereum confirms the new state once it’s verified.

StarkEx batches a number of transactions together and creates one zk-STARK proof to validate them, rather than making individual transactions on Ethereum. Instead of going through all the transactions, Ethereum has to confirm this proof. This enhances scalability, transaction price, and the security of Ethereum.

Step-by-Step Transaction Lifecycle

The StarkEx transaction lifecycle is explained to understand why it is one of the most advanced Ethereum scaling solutions.

Step 1: A User Initiates a Transaction

The initial step in the system’s operation involves a User initiating a transaction. All of this starts with using an application developed on StarkEx.

A user could, for instance:

• Make a trade on a decentralized exchange.
• Purchase an NFT
• Transfer digital assets
• Play on a blockchain game.

This is verified in StarkEx infrastructure before being listed to Ethereum after it has been accepted.

Step 2: Transactions Are Batched Together

Instead of submitting thousands of individual transactions, StarkEx submits a batch of transactions. This batching decreases the data that needs to be verified on Ethereum.

Step 3: A zk-STARK Proof Is Generated

After the batch is completed, StarkEx produces the zk-STARK validity proof. The proof is not one for each individual transaction, but rather proves that the whole batch respects the rules of the protocol without exposing unnecessary details of the computations involved.

This cryptographic method is one of the main innovations that helps StarkEx achieve its scalability.

Step 4: Ethereum Verifies the Proof

The generated proof is sent to Ethereum. Ethereum checks the proof and then changes the state of the network. Ethereum does not need to execute each transaction separately, but only verifies the proof, making use of the network resources more efficiently.

Step 5: The Updated State Is Finalized

The changes to the state are recorded on the Ethereum blockchain once they are successfully verified. From the user’s side, the transaction now has a final settlement, but it’s still getting the security provided by Ethereum.

Why This Process Matters

Many people, when looking for Ethereum Layer 2 options, may just have a look at cheaper gas fees. While reduced costs are important, they’re only part of the story.

The StarkEx architecture also allows for:

• Higher transaction throughput
• The ability to process the same number of supported applications more quickly.
• Scalability for platforms with high volumes of users
• Self-custody, wherein a user can keep the assets within his or her control
• Validity proofs on Ethereum to secure.

StarkEx is not designed to be a competitor to Ethereum, but is rather an addition for applications to scale while maintaining the security guarantees of the underlying blockchain.

Understanding zk-STARK Proofs in Simple Terms

But despite StarkEx sounding like a complicated concept, one of the concepts that makes it so is the zk-STARKs. A lot of articles are written regarding it but never concerning what it is, or why it is important.

Let’s simplify it. Indeed, it has a cryptographic method named a zk-STARK ( Zero-Knowledge Scalable Transparent Argument of Knowledge ), to demonstrate the overall reliability of a set of transactions without having to re-process it.

Imagine that it is as though a teacher grading an exam. The teacher receives a report as to whether the entire exam was marked or not marked, which can then be mathematically verified, instead of looking at individual answers. Teacher has to only check the accuracy of the report and doesn’t need to review the answers again.

In blockchain, there is an application of this concept, called StarkEx.

Instead of performing thousands of transactions in StarkEx on Ethereum, we do thousands of transactions “off-chain”, regenerate the zk-STARK proof and upload the proof to Ethereum. The updated state is then verified and validated by Ethereum.

This not only improves the security guarantees of Ethereum but also makes a contribution to its scalability as well.

Why zk-STARKs Matter

Based on our analysis, zk-STARKs offer some benefits for high-performance blockchain applications:

• Higher transaction throughput
• Relief from congestion on the Ethereum network.
• Lower transaction costs
• Strong cryptographic security
• No need to depend on a central operator.

Unlike optimistic rollups, which might need challenge periods, zk-STARK-based systems are capable of mathematical validity proof. This enables the transactions to be validated as correct after the proof is accepted on Ethereum.

StarkEx Architecture Explained

There’s one thing that most competitors don’t do well, which is answering the question of how StarkEx’s components join. Knowing the architecture helps so much in understanding the technology.

StarkEx Architecture Workflow

User

 │

 ▼

Application

 │

 ▼

StarkEx Engine

 │

 ▼

SHARP Prover

 │

 ▼

Ethereum Verifier Contract

 │

 ▼

Ethereum Mainnet

Now, let’s examine each of the parts.

User

The process begins with an interaction with an application that runs on StarkEx.

Examples include:

• Executing a trade
• Minting an NFT
• Transferring digital assets
• There are two types of in-game transactions: one is completed, and the other is pending.

Application

The applications will deposit the user transactions to StarkEx rather than to Ethereum itself, such as decentralized exchanges, NFT marketplaces, and blockchain games. This greatly increases efficiency.

StarkEx Engine

The StarkEx engine runs transactions off-chain.

Its responsibilities include:

• Managing application state
• Conducting transactions in batches.
• Preparation of data for proof production

This is where the majority of the computational work takes place.

SHARP Prover

An element often overlooked in many of the beginners’ articles is SHARP (Shared Prover). SHARP is a zk-STARK prover for batches of transactions.

SHARP enables efficiency in the sharing of the proving infrastructure with multiple applications while reducing operational costs. Understanding SHARP is important for readers who are delving into StarkEx in-depth, as it is one of StarkWare’s key architectural innovations.

Ethereum Verifier Contract

After the zk-STARK proof is constructed, it will be sent to Ethereum. A verifier smart contract is used to verify the validity of the proof mathematically. If it is successful, Ethereum accepts the new state without running each transaction.

Ethereum Mainnet

Ethereum is the last settlement layer. That is, StarkEx is not an Ethereum alternative. It also enhances the capabilities and works on the back of Ethereum’s security and decentralization.

Rollup vs. Validium vs. Volition

Data availability, another subject that competitors typically use without properly describing, is one of these. StarkEx offers a variety of data availability modes to cater to projects’ needs for balancing security, scalability, and cost. Knowing an understanding of these options constitutes the reason why StarkEx can be adapted to different use cases.

Rollup

In rollup mode, transaction information is also stored on the Ethereum blockchain. This usually means that it is more expensive than Validium and also offers greater guarantees for the data availability of the transaction because the data is stored on Ethereum.

Validium

Validium stores transaction data off-chain, but benefits from zk-STARK proofs for transaction validity. This decreases on-chain data expenses and makes it a beneficial solution for applications that involve lots of transactions.

Volition

Volition is a combination of these two approaches. Depending on the need, applications or users can select if they wish to use Rollup or Validium. This versatility provides the developer the flexibility to select the security and price for the various use cases.

StarkEx vs. Starknet

A very common question we are asked is: “Is StarkEx Starknet?” The answer is no. Both were made by StarkWare and utilize the zk-STARK technology, but were designed for different purposes.

When to Use StarkEx?

According to our analysis, StarkEx is more suited for:

• High-volume crypto exchanges
• NFT marketplaces
• Blockchain games
• Enterprise platforms
• Applications that need custom scaling.

When Starknet Makes Sense?

It may be preferable to use Starknet if you are:

• Developing a general-purpose decentralized app
• Finding permissionless deployment
• Creating smart contracts in an Open Layer 2 Ecosystem
• A glimpse at a wider programmer world

This distinction is important to comprehend so we can try to prevent one of the greatest misconceptions about StarkWare’s ecosystem.

Why Leading Web3 Projects Use StarkEx

It’s more useful to grasp why projects adopted StarkEx than to simply state that they are performing projects that leverage StarkEx.

dYdX

dYdX needed a piece of infrastructure that can support a high trading volume, cut down significantly on effective trading costs, and provide users with self-custody. StarkEx delivered a scaling solution that is suitable for those needs and application-specific.

Immutable X

NFT marketplaces frequently deal with many minting and trading transactions. Immutable X has implemented StarkEx to boost scalability and mitigate the friction stemming from Ethereum transaction fees.

Sorare

Sorare is the marketplace manager for digital sports collectibles. With StarkEx, users enable seamless and efficient transfers and transactions of NFTs, while enjoying the security of the Ethereum network.

rhino.fi

Formerly called DeversiFi, rhino.fi implemented StarkEx to improve transaction efficiency and provide users with a smoother DeFi trading experience.

These examples show that StarkEx’s purpose is not to be a general blockchain to run any type of DApp, but to be a high-throughput, predictable-performance, Ethereum-backed solution.

Real-World Use Cases of StarkEx

StarkEx is applied in various industries in the blockchain.

Decentralized Exchanges

High-frequency trading platforms make use of:

• Faster transaction processing
• Lower fees
• Self-custody
• Ethereum settlement

NFT Marketplaces

By having a more efficient NFT platform to facilitate minting, transfers, and marketplace transactions without bringing a burden to Ethereum.

Blockchain Gaming

Often, games involve several thousand transactions in-game. StarkEx offers a player-friendly and scalable solution for developers to lower user transaction fees and build more scalable games.

Enterprise Blockchain Applications

Organisations looking for blockchain infrastructure can use StarkEx to provide apps with high throughput without compromising Ethereum as the settlement layer.

Strengths of StarkEx

Each L2 solution aims to address a particular problem. StarkEx has been interesting to us because it is dedicated to fulfilling high-volume applications that can scale efficiently while maintaining the security model of Ethereum. Let’s look at some of its major assets.

High Scalability

A significant benefit of StarkEx is that it can enable a massive volume of transactions to be processed more efficiently than the Ethereum Layer 1 Classic. In contrast, StarkEx aggregates transactions into batches and batches them using zk-STARK proofs, so as not to send each transaction to the Ethereum network. In this manner, it would be feasible to boost applications’ throughput without exhausting the Ethereum network.

Ethereum-Level Security

Even though the transactions are off-chain, the settlement still takes place on Ethereum. This entails that StarkEx application users can continue to enjoy the security guarantees of Ethereum as opposed to an independent blockchain. This blend of scalability and Ethereum security is also a game-changer for numerous businesses.

Lower Transaction Costs

StarkEx can help to minimize the data that needs to be processed on the Ethereum blockchain by batching transactions and decreasing on-chain computation. This can boost efficiency in operations and user experience in an application that makes thousands of transactions daily.

Self-Custody

With StarkEx, you can maintain a self-custody model, something that isn’t available in all centralized scaling solutions. Users have greater control over their assets, and the transactions are handled by the Layer 2 infrastructure, eliminating the need for a centralized intermediary to hold custody of funds.

Flexible Data Availability

One such strength that’s often overlooked is StarkEx’s support for multiple data availability modes. The choice is up to the projects, between:

• Rollup
• Validium
• Volition

This will be based on their security needs, scalability objectives, and budget. With such flexibility, StarkEx is appropriate for a wide variety of production environments.

Limitations and Challenges

No blockchain infrastructure is perfect, and StarkEx is no exception. Knowing what it can do is as vital as knowing its limitations.

Application-Specific by Design

StarkEx, for its part, is not a public Layer 2 blockchain, onto which anyone can deploy smart contracts, like Starknet. Rather, it offers tailored scaling for each application. This method provides more flexibility to businesses, but it is not a good fit for developers who want to deploy permissionlessly.

Technical Integration

To integrate StarkEx into an app, it’s not a simple integration, so it’s a technical issue. Before development teams select StarkEx as a scaling option, they need to consider factors such as architecture, infrastructure needs, and operational requirements.

Learning Curve

Concepts such as:

• zk-STARK proofs
• SHARP
• Rollup
• Validium
• Volition

For people who are new to Ethereum scaling, it can first appear to be complex. This is one of the reasons that we feel educational resources are valuable to users to understand layer 2 technologies.

Not a Universal Solution

StarkEx is designed to serve certain categories of applications. Depending on the project’s needs, Starknet or other L2 solutions might be more suitable for those that need a general-purpose smart contract platform.

Who Should Use StarkEx?

The most frequently asked question from readers is if StarkEx would benefit them. Depends on what you’re creating.

StarkEx May Be a Good Fit If You Are:

• Understanding how to build a high-volume decentralized exchange
• Developing an NFT marketplace
• Developing a blockchain gaming platform.
• Managing the payment app on an application that transacts often
• Aiming to solve application-specific Ethereum scaling.
• Focus on high throughput with Ethereum settlement by priority.

Another Solution May Be Better If You:

• Want to deploy smart contracts without permission. Want to deploy smart contracts without permission.
• Looking for a general-purpose L2 ecosystem
• Are trying out small DApps
• Would like an open development environment, not customized infrastructure

Choosing the right scaling solution requires taking into account the goals of your application, your requirements, and your future plans.

Common Misconceptions About StarkEx

Being part of the StarkWare ecosystem, StarkEx is somewhat misunderstood. Hopefully, readers will be able to correct some of these errors and get a better understanding of the technology.

Misconception 1: StarkEx Is the Same as Starknet

No. Both are StarkWare-made and use the zk-STARK technology, and have different use cases. Scaling is Application-specific with StarkEx. Starknet is a Layer 2 network that is built for deploying smart contracts and is permissionless.

Misconception 2: StarkEx Is a Blockchain

StarkEx is not an independent blockchain. It’s an Ethereum L2 scaling solution, which is an engine that runs on Ethereum for settlement and security.

Misconception 3: StarkEx Has Its Own Native Token

No. StarkEx does not issue a governance token or have a native cryptocurrency. It is crucial to make this distinction as many readers tend to conflate StarkEx with other blockchain ecosystems that also have native tokens.

Misconception 4: StarkEx Replaces Ethereum

StarkEx is not meant to replace Ethereum, but complement it. It executes transactions off-chain, but uses the Ethereum main chain to check proofs and finalize state updates.

Misconception 5: StarkEx Is Only for Crypto Exchanges

StarkEx was first introduced by exchanges but is also employed in NFT marketplaces, blockchain games, digital asset platforms, and similar scenarios where efficient transactions are required.

Canada-Specific Considerations

To readers and businesses in Canada, StarkEx is not an investment in a cryptocurrency, but rather an infrastructure technology.

When choosing the correct blockchain infrastructure, Canadian developers or organizations should take into account various factors like application architecture and scalability needs, operational costs, and compliance considerations when assessing Ethereum layer 2 options.

Like other blockchain technologies, it’s also crucial to be aware of changes in regulatory guidance that could impact applications of digital assets in your region.

Conclusion

StarkEx cannot be considered as any regular Ethereum scaling solution. It is a Layer 2 application-specific engine for enabling high-performance blockchain applications to process transactions efficiently, while still leveraging the security of Ethereum.

One of the best attributes of StarkEx is the focus architecture, in our analysis. It is not designed to become a general-purpose blockchain to serve the general public but has been developed specifically to cater to exchanges, NFT marketplaces, gaming platforms and other apps that need scalable infrastructure. It is a unique product in the entire Layer 2 space with features like zk-STARK validity proofs, flexible data availability options and Ethereum-backed settlement.

Concurrently, it’s crucial to understand that StarkEx is not designed for all use cases. By grasping its architecture, deployment model, and distinctions from Starknet, developers, businesses, and blockchain enthusiasts can better assess if it is suitable for their technical needs.

In the ever-changing landscape of blockchain, platforms such as StarkEx are poised to stay significant in the discussions concerning blockchain scalability and Dapp performance.

Continue Learning About Ethereum Scaling Solutions

For those who found this guide informative, keep navigating BTCC Academy to gain more insights into Ethereum Layer 2 solutions, ZK-proofs, blockchain scalability, and decentralized infrastructure. Learning these types of Web3 solutions, such as StarkEx, rollups, and others, will improve your ability to navigate the fast-changing Web3 landscape and make smarter technical choices.