Transforming Layer 2 Solutions for Decentralized Finance and Web3 Applications with Rome Protocol

How Rome Protocol Enhances Speed, Security, and Interoperability

Mark Damasco
10 min readNov 4, 2024

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Today, Blockchain technology continues to progress at a rapid speed: Layer 2 (L2) solutions and interoperability are becoming essential to improve scalability and efficiency. As of mid-2024, over ~80% of all Ethereum transactions are processed via L2, indicating a strong shift towards these technologies as users seek lower fees and faster processing times.

Ethereum Layer-2 Transaction Share. Source: IntoTheBlock

But, many challenges remain, particularly in ensuring fast, secure, and decentralized transactions across different ecosystems.

The Rome Protocol aims to enhance interoperability between blockchain ecosystems by transforming Solana into a modular framework of dedicated services. This innovative strategy focuses on three primary objectives: making L2 solutions as fast and decentralized as Solana, enabling Ethereum Virtual Machine (EVM) decentralized applications (dApps) to operate on Solana Virtual Machine (SVM) while tapping into its vast user base, high throughput, cost-efficient and facilitating atomic composability for smooth interactions between the Solana and Ethereum networks.

Additionally, Rome provides developers with RaaS (Rollup-as-a-Service), facilitating the creation and management of rollups without needing to build new cross-chain interoperability infrastructures. This allows Ethereum developers to use familiar tools like the OP Stack for execution and state maintenance.

Now, let’s Analyze and later explore how (a) Rome EVM, (b) Shared Sequencer, (c) Interoperability, and (d) Data Availability “DA” work together to revolutionize blockchain infrastructure, the importance of modular blockchain architecture, and why these innovations are crucial for the future of decentralized finance (DeFi) and Web3 applications.

Blockchain Silos and Scalability Issues

As blockchain networks have matured, a few critical problems have emerged, affecting the growth and development of decentralized applications (dApps).

Some of the issues include:

  1. Siloed Blockchain Networks. Different blockchain ecosystems like Ethereum and Solana operate largely independently. While Ethereum boasts a massive user base and developer community, Solana excels in speed and low transaction costs. But, interoperability between these chains has been limited, preventing flawless interactions and asset transfers across them.
  2. Scalability Challenges. Even though L2 solutions like rollups have been introduced to Ethereum, they still suffer from slower transaction finality and higher costs compared to Solana. While Solana is faster and cheaper, it lacks the Ethereum ecosystem’s mature (Network effects) dApp infrastructure and developer tools.
  3. Decentralization VS Speed Trade-Off. Increasing transaction throughput often comes at the cost of decentralization, which is a cornerstone of blockchain’s promise. Many blockchains that prioritize speed have struggled to maintain a truly decentralized network.

Without solutions to these problems, the adoption of DeFi and other Web3 applications faces significant barriers. Users and developers need networks that are fast, decentralized, and interoperable to unlock the full potential of blockchain technology.

Rome Interoperability can bridge the gaps in the fragmented ecosystem.

Rome’s Modular Blockchain Architecture

To understand why Rome’s modular blockchain architecture is a game-changer, it’s helpful to look at how blockchain architectures have evolved and why modularization is so important: Early blockchain systems like Bitcoin and Ethereum were built as monolithic architectures, meaning every part of the blockchain — consensus, execution, data availability, and settlement — was handled by the same network.

While these systems were revolutionary in decentralization and transparency, they struggled to scale as more users and transactions flooded the network. This led to high fees, slow transaction times, and limited interoperability.

The Rise of L2 Solutions and Modularity

To address these limitations, developers began experimenting with L2 solutions on networks like Ethereum, such as rollups “roll-up” and sidechains. These L2s are designed to handle transaction execution separately from the main blockchain, reducing congestion and lowering fees.

But, even with these improvements, interoperability between different ecosystems remained a challenge, and L2s were often constrained by the limitations of the main blockchain.

In recent years, modular blockchain architecture has emerged as a promising solution, separating key components of the blockchain so they can operate independently. This architecture has allowed developers to build specialized modules for each blockchain function, enabling flexibility, scalability, and interoperability across ecosystems.

Projects like Polkadot and Cosmos pioneered this approach by creating interconnected blockchains that communicate through shared protocols. For example, Polkadot’s relay chain connects various “parachains” (independent blockchains) that specialize in different functions.

Cosmos uses a similar hub-and-zone model that allows diverse blockchains to connect through the Inter-Blockchain Communication (IBC) protocol. Both ecosystems have demonstrated that modularity can improve scalability and enhance cross-chain functionality, paving the way for a new era of blockchain interoperability.

Rome’s Unique Approach

Rome takes modular architecture to the next level by focusing on Solana’s technology. Unlike Polkadot and Cosmos, which rely on interoperability hubs, Rome modularizes Solana’s consensus into a set of enshrined services that provide unique benefits for Ethereum-compatible (EVM) applications. This enables any Ethereum-based decentralized application (dApp) to be deployed on Solana, benefiting from Solana’s high speed, low cost, and decentralized infrastructure.

Here’s how Rome’s components tackle specific blockchain challenges:

A) Rome EVM: Enabling EVM Compatibility on Solana

One of the core components of Rome’s architecture is Rome EVM, which enables Ethereum-based applications to run on Solana while allowing interoperability between SPL tokens (Solana tokens) and Ethereum’s ERC-20 tokens (Ethereum tokens).

This approach is similar to what Polygon has achieved on Ethereum. Polygon, originally known as Matic, serves as a sidechain that connects Ethereum-based dApps to a faster, lower-cost environment, effectively increasing Ethereum’s scalability.

Rome EVM, however, extends this functionality to Solana’s ecosystem. By using OP Geth (an Ethereum client), Rome EVM allows developers to bring their dApps directly onto Solana without having to rewrite their codebase. Users can conduct Ethereum-like transactions on Solana, taking advantage of the network's speed and low fees while still maintaining compatibility with Ethereum-based assets. This innovation provides a familiar environment for Ethereum developers while opening the door to Solana’s superior performance.

How does it work?

Rome EVM utilizes OP Geth, an Ethereum client implementation, which creates a familiar execution environment for developers. Users can now conduct EVM transactions on Solana, bringing the power and security of Solana’s high throughput, low latency, and low-cost transactions to Ethereum-based applications.

OP Geth enables Ethereum compatibility, Rhea API sequences transactions, and Hercules (blocks of ordered txn) executes them on Solana, facilitating interoperability.

In essence, Rome EVM transforms Solana into a scalable, efficient version of Ethereum without requiring developers to rebuild their dApps from scratch.

Potential Use Cases:

Aave and Uniswap are popular dApps in the Ethereum ecosystem that could potentially leverage Rome EVM to reach Solana users. If deployed via Rome EVM, these applications could offer faster, more cost-effective transactions for their users, expanding their reach while improving user experience.

B) Shared Sequencer

Rome’s Shared Sequencer (SS) is designed to bring Solana’s transaction speed and decentralization to Layer 2 solutions. While most L2s are constrained by the main blockchain’s limitations, Rome’s Shared Sequencer provides L2s with Solana’s high throughput and fast transaction finality. It accomplishes this using four components: Rhea, Hercules, a rollup smart contract on Solana, and an Ethereum client like OP Geth.

Rome’s Shared Sequencer mirrors what Optimism and Arbitrum have achieved as Ethereum-based rollups, which help process transactions off-chain and then report results back to Ethereum. But, by using Solana’s infrastructure as the base layer, Rome’s Shared Sequencer enables faster transaction finality and lower fees, enhancing scalability while preserving decentralization.

Example of Success:

Projects like Loopring and Immutable X have built Ethereum rollups for decentralized exchanges and NFT marketplaces, respectively. If these projects utilized Rome’s Shared Sequencer, they could potentially offer their users faster transaction processing and reduced fees by leveraging Solana’s infrastructure.

The Shared Sequencer (SS) takes advantage of Solana’s ability to confirm transactions quickly and efficiently, with high throughput and low costs, all while maintaining a decentralized infrastructure. The entire Solana stake backs this process, ensuring secure and immutable transaction ordering.

C) Rome Interop

Rome’s Interop “interoperability” component focuses on cross-chain composability, enabling Ethereum and Solana transactions to be atomically composable. This means that a transaction on Ethereum can automatically trigger one on Solana without requiring an intermediary, and both transactions succeed or fail together.

L2’s, ZKevm leverage Solana’s shared sequencer — maintaining atomic composability.

This feature builds on the success of cross-chain bridges like Wormhole and Ren Protocol, which allow assets to move between blockchains. But, Rome Interop goes a step further by enabling true atomic transactions, meaning that developers can create applications that span both ecosystems without compromising security or requiring trust in a third party.

Why is this a game-changer?

Cross-chain transactions have been fraught with inefficiencies, often requiring multiple layers of trust or third-party bridges that slow down the process and add security risks. Rome Interop solves this by enabling atomic composability, meaning that a transaction on Ethereum can automatically trigger one on Solana and vice versa, without relying on a centralized intermediary.

How does it work?

Rome Interop uses the Rome SDK, Rome Light Client, and Fast Finality Layer across Rollups. The SDK enables developers to create atomic cross-chain transactions easily. The Light Client ensures efficient communication between chains, while the Fast Finality Layer guarantees that transactions are finalized quickly and securely.

Remus: cross-rollup atomicity

In essence, it’s a system that allows transactions from different rollups to be bundled together and executed as one atomic unit on Solana, ensuring they either all succeed or all fail together.

D) High Throughput Data Availability

Are you familiar with Celestia? It is one of the early pioneers in the blockchain space, particularly known for its innovative approach to data availability DA. Recently, Rome Protocol secured a partnership with Celestia, highlighting the growing importance of data availability (DA) in enhancing blockchain scalability.

Without high throughput and secure DA, L2 solutions are bottlenecked by the amount of data they can handle at any given time. Rome DA solves this by providing L2s with high throughput DA using Solana’s security, Reliability, and Efficiency.

What is DA and why does it matter?

In simple terms, Data Availability ensures that transaction data is accessible and verifiable by all participants in the network. High throughput DA is necessary for ensuring that as transaction volumes increase, the network can handle the load without slowing down.

How does Rome DA enhance scalability?

By leveraging Solana’s robust security and throughput, Rome DA ensures that L2s can access and verify the data they need quickly and efficiently. This guarantees that even as transaction volumes grow, the network remains decentralized, secure, and scalable — this is called “blockchain Trilemma” a term coined by Ethereum co-founder Vitalik Buterin in his blog post.

source

Why Rome’s Modular Approach Matters for the Blockchain Ecosystem?

Rome’s modular approach to blockchain architecture represents a significant evolution in blockchain technology. By separating Solana’s consensus into discrete modules, Rome provides specialized tools to address specific needs within the blockchain space, from interoperability to scalability and data availability. These components not only enable Ethereum-based dApps to access Solana’s high-performance infrastructure but also open up new possibilities for flawless cross-chain interactions.

Rome’s success, along with other modular projects like Cosmos, Polkadot, and Celestia, demonstrates that modular blockchain architecture is the future of scalability and interoperability in blockchain ecosystems. Projects using Rome’s architecture can create fast, cost-effective, and decentralized applications that function smoothly cross Solana and Ethereum, improving user experience and setting a new standard for cross-chain interactions.

Rome is well-positioned to solve many of the current blockchain ecosystem’s most pressing issues. Its modularity enables an unprecedented level of flexibility, allowing developers to pick and choose the services that best suit their needs while benefiting from Solana’s powerful infrastructure.

As a result, the Rome modular blockchain architecture has the potential to become a foundational layer for the next generation of decentralized applications, powering everything from DeFi to gaming to enterprise applications in a scalable, secure, and user-friendly environment.

Parting Thoughts

Rome Protocol is more than just an interoperability layer or another L2 solution; it’s a paradigm shift for blockchain scalability, decentralization, and cross-chain collaboration. By modularizing Solana’s consensus mechanism, Rome allows EVM-based dApps to deploy efficiently on Solana (SVM), addressing critical challenges such as liquidity fragmentation and cross-chain compatibility.

This integration is not only about increasing transaction speeds and high throughput; it’s about creating a cohesive ecosystem where dApps, users, and developers can interact flawlessly across chains. For developers, Rome offers a scalable infrastructure that makes building high-performance dApps easier.

For DeFi enthusiasts, it promises faster and cheaper transactions without the typical barriers and risks associated with cross-chain interactions. Rome brings all these elements together through innovations like the Rome EVM, Shared Sequencer, Interop, and Data Availability (DA), making it a robust answer to the scalability and interoperability demands of Web3.

In a future defined by interconnected, decentralized networks, Rome stands out as a critical enabler, pushing blockchain towards a more inclusive and flexible model. The days of isolated ecosystems are numbered, and as blockchains grow beyond single-chain silos, Rome Protocol could be instrumental in unlocking new horizons for developers, users, and the blockchain ecosystem at large.

“All roads lead to Rome.”

References:

[1]https://specs.optimism.io/protocol/exec-engine.html

[2] https://www.rome.builders/

[3]https://www.rome.builders/rome-shared-sequencer

[4]https://mirror.xyz/0x83037f3049971Ee6b998EFA1Aa2Fa9F455d110dE/fYqy8bijgojEc07Z_wJi4DWYSkiqZ-3xgmxj6IHhwZw

[5]https://docs.rome.builders/

[6]https://docs.celestia.org/learn/how-celestia-works/data-availability-layer

[7]https://cryptoslate.com/ethereum-transaction-fees-hit-record-low-as-layer-2-networks-absorb-more-activity/

[8]https://cosmos.network/ibc/

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Mark Damasco
Mark Damasco

Written by Mark Damasco

I write about life, philosophy, economics, physics, etc., turning complex ideas into insights that boost understanding. 👉https://markdamasco.substack.com/

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