Fast Finality Layer for the Soneium ecosystem, powered by Astar Network, AltLayer, and EigenLayer. The mechanism will drastically improve transaction finality, making it an essential upgrade for latency-sensitive applications in gaming, DeFi, and SocialFi.
Checkout: Fast Finality Layer for Soneium
The Purpose of the Fast Finality Layer: Overcoming the Delayed Finality Barrier
Soneium, a Layer 2 solution built on Optimism’s OP Stack, currently depends on Ethereum’s finality properties for transaction settlement. However, this introduces a delayed finality of around 13 minutes. While this delay is acceptable for most use cases, it becomes problematic for real-time applications like DeFi, gaming, and social applications that require near-instant confirmation of transactions.
The Fast Finality Layer aims to provide an additional security layer with finality time of under 10 seconds to service Apps requiring high security assumptions and low latency. This enhancement will not only boost the performance of Apps on Soneium but also improve interoperability between rollups.
AltLayer’s MACH: The Core of Fast Finality
At the heart of this innovation is AltLayer’s MACH (Modular Actively Validated Checkpointing), a crypto-economic solution designed to accelerate transaction finality. MACH uses real-time rollup state validation to enable instant finality. This method significantly reduces the need for centralized sequencers, ensuring that transaction confirmations happen quickly, with finality guarantees achieved in under 10 seconds.
The MACH solution integrates seamlessly with EigenLayer’s restaking mechanism, which ensures that the security and decentralization of Soneium are robustly maintained. Through EigenLayer’s AVS (Actively Validated Service), restaked ETH and ASTR are used to secure the network, offering a decentralized way to validate transactions and safeguard the ecosystem from potential attacks.
Strengthening the Fast Finality Layer for Soneium: Economic Security via ASTR & Restaked ETH
To secure the Fast Finality Layer for Soneium, the integration of ASTR and restaked ETH is pivotal. EigenLayer’s restaking model allows ETH validators to restake their ETH on Fast Finality of Soneium for additional rewards, while also enhancing the economic security of the network. ASTR will play a key role in this new security framework, acting as a validator stake that contributes to the integrity of the Fast Finality Layer for Soneium.
This integration enables ASTR holders to participate in securing the network through staking, reinforcing the consensus mechanism.
Soneium’s Multi-Chain World
By contributing to the security of the Fast Finality Layer for Soneium, ASTR and restaked ETH is becoming part of the backbone of a new kind of infrastructure — built on collaboration, interoperability, and shared security.
Key Benefits for the Soneium Ecosystem
- Reduced Transaction Finality Time: The Fast Finality Layer for Soneium will significantly speed up transaction finality, reducing it from 15 minutes to under 10 seconds. This will make Soneium much more efficient for applications that rely on real-time data, like some DeFi applications, gaming, and NFTs, offering users a smoother experience.
- Enhanced Security and Reliability for Soneium: With the combined power of MACH, EigenLayer’s restaking, and ASTR, the Fast Finality Layer for Soneium will be both secure and decentralized. This reduces the risks associated with relying on centralized sequencers, making the network more reliable and trustworthy for both developers and users.
- Broader Adoption of Soneium: By enabling faster transaction finality and providing a more secure, scalable network, the Fast Finality Layer will make it easier for Soneium to be adopted across various industries. This opens the door for even more real-world use cases in finance, gaming, and social applications, helping the network grow and thrive.
Conclusion: A Leap Forward
Fast Finality Layer for Soneium, powered by Astar Network, AltLayer, and EigenLayer is another major step toward making Soneium a high-performance and economically secure chain.
By integrating a Fast Finality Layer, Soneium overcomes the 13-minute finality delay native to Ethereum — achieving sub-10-second finality. This significantly enhances support for latency-sensitive use cases like DeFi, real-time gaming, and SocialFi. Developers can tap into this feature through a dedicated RPC endpoint that indicates whether a specific Soneium block is final, making it easy to integrate without adding extra complexity.
At the core of this upgrade is a dual-token staking model. The Fast Finality Layer will be secured using both ASTR and restaked ETH, extending ASTR’s utility and positioning it as a contributor to Ethereum’s broader shared security model.
For Soneium, this marks a major technical evolution — not just improving finality and decentralization, but also preparing the chain to scale with lower latency and better composability across the Ethereum L2 landscape.
This collaboration isn't just about improving today’s technology — it's about laying the foundation for what’s to come.