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Event Replay: Technical Insights on Arc Testnet Reliability

Posted Dec 19, 2025 | Views 187
# Arc
# Testnet
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Speakers

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Adi Seredinschi
Principal Product Manager @ Circle
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Corey Cooper
Senior Manager, Developer Relations and Ecosystem Marketing @ Circle

Corey Cooper is a technologist with experience spanning development, founding and scaling products, solutions engineering, and developer relations. He blends vision, creativity, and strong business acumen with deep technical expertise to drive go-lives, product launches, and high-impact developer experiences. Corey is known for his ability to navigate across roles, lead cross-functional initiatives, and deliver scalable, well-crafted solutions that support both product growth and customer success.

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SUMMARY

Principal Product Manager Adi Seredinschi and Sr. DevRel Manager Corey Cooper walk through the reliability work behind the latest Technical Insights blog and break down how Arc achieves predictable performance and consistent block times.

They cover: → How the team tested Reth and the Malachite consensus engine → The tools used to push Arc to its limits: Quake, Guzzler, and Spammer → How Arc delivers stable ~500ms block cadence across validators

Deep dive. Engineering tradeoffs. Transparent look into how Arc is built.

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