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Event Replay: Finality You Can Count On

Posted Nov 04, 2025 | Views 60
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SUMMARY

This livestream focuses on why Arc was designed as a high-performance L1 specifically for financial applications. Adi explains how years of consensus research led to Malachite, a modern Rust implementation of the widely used Tendermint BFT protocol, chosen for its deterministic finality and battle-tested reliability. Paired with a Rust-based Ethereum execution client, Arc gives builders familiar EVM tooling on top of a consensus layer that finalizes blocks in roughly 500ms.

Corey and Adi walk through the benefits of decoupling consensus and execution into separate processes: operators can scale each independently, tuning bandwidth and storage where they’re most needed as throughput grows. For developers building with assets like USDC and EURC, this architecture means that once a transaction is confirmed, it is finalized—reducing the risk of reorgs and making large-value transfers safer and more predictable.

The session also touches on Arc’s roadmap for performance and safety. Topics include MultiProposer extensions to increase throughput, how the team is approaching MEV with a focus on protecting users from toxic patterns like sandwiching, and how Arc aims to keep evolving post-mainnet. Attendees will come away with a clear mental model of how Arc’s consensus and execution layers work together to deliver fast, reliable settlement for money movement at internet scale.


Arc is offered by Circle Technology Services, LLC (“CTS”). CTS is a software provider and does not provide regulated financial or advisory services. You are solely responsible for services you provide to users, including obtaining any necessary licenses or approvals and otherwise complying with applicable laws.

Arc has not been reviewed or approved by the New York State Department of Financial Services.

The product features described in these materials are for informational purposes only and may be modified, delayed, or cancelled without notice at the sole discretion of Circle Technology Services, LLC. Nothing herein constitutes a commitment, warranty, guarantee, or investment advice.

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