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About Arc
Arc is a Layer-1 blockchain developed by Circle, currently in public testnet with active developer adoption. Key milestones include: 1) Public testnet launch, marking the first open phase for developers to build and test stablecoin-focused applications. 2) Mainnet launch scheduled for September 16, 2026, transitioning from testnet to production. 3) Integration of core components like USDC, CCTP, and Gateway, establishing a foundation for cross-chain liquidity and settlement. 4) Adoption of the Malachite consensus engine, enabling sub-second finality and high performance. These events represent significant steps in Arc's evolution from concept to a functional network.
Arc (Layer-1) advanced significantly in H1 2026. Public mainnet launches Sept 16, 2026, following private mainnet with 100+ institutions testing stablecoin payments, tokenized assets, FX, and automated trading. Founding validators include BlackRock, Visa, Mastercard, DTCC, Galaxy, SBI Group, etc. Tech: Malachite BFT consensus (Tendermint-based), USDC-denominated predictable fees, sub-second finality, planned transition from permissioned to permissioned-PoS. Privacy: modular system with confidential transfers (hide amounts, visible addresses), future ZKPs, MPC, FHE. ARC token: 10B supply, 60% ecosystem, 25% Circle, 15% reserve. Ecosystem: BlackRock deploys BUIDL, DTCC tokenization in H2 2027, Aave, Uniswap, Wirex payments. Roadmap: mainnet launch, PoS transition, privacy expansion, stablecoin/tokenization ecosystem growth.
Based on the provided information, the core team of Arc includes the following members. The three co-founders are Rachel Mayer (VP of Product), Sanket Jain (Principal Product Manager), and Sterling B (BD Ecosystem Director). Other key executives include Adi Seredinschi (Principal Product Manager), Adrian Soghoian (Principal Software Engineer), Gordon Y. Liao (Head of Research), and Trent Davis (Principal Product Marketing Manager).
Rachel Mayer: Co-founder, VP of Product. Previously at Circle, with experience in product leadership. Sanket Jain: Co-founder, Principal Product Manager. Previously at Circle, focused on product management. Sterling B: Co-founder, BD Ecosystem Director. Previously at Circle and Hyperliquid Labs, with a background in business development. Adi Seredinschi: Principal Product Manager. Previously at Informal Systems, worked on the Malachite consensus engine. Adrian Soghoian: Principal Software Engineer. Previously at Informal Systems, contributed to Tendermint consensus. Gordon Y. Liao: Head of Research. Previously at Circle, with expertise in economics and research. Trent Davis: Principal Product Marketing Manager. Previously at Circle, Ripple, and Protocol Labs, with marketing and product roles.
Arc (Layer-1 blockchain) recent team change: Eli Engelman joined in July 2026 as Ecosystem Partnerships, responsible for driving ecosystem partnerships. He previously had business development experience at Trust Wallet and Uniswap Labs. Arc is Circle's stablecoin Layer-1 blockchain, set to launch mainnet on September 16. This new member will support Arc's ecosystem growth.