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Arc Arc is an open, EVM-compatible Layer 1 blockchain built for stablecoin finance, with USDC gas and sub-second deterministic finality.
Arc Testnet averages about 0.48-second block times and reaches deterministic finality in under one second, so committed blocks do not reorganize.
Malachite benchmarks report 3,000+ transactions per second with 20 globally distributed validators and finality below 350 ms under benchmark conditions.
Arc is designed for stablecoin-native financial applications, including payments and payouts, foreign exchange, treasury operations, lending, tokenized assets, capital-markets settlement, and AI-agent commerce.
USDC-denominated gas and direct integration with Circle infrastructure support predictable costs and crosschain liquidity workflows.
| Consensus | Malachite, a Tendermint-based Byzantine Fault Tolerant consensus implementation, with a permissioned Proof-of-Authority validator set. A rotating proposer builds each block, and more than two-thirds of validators must pre-commit before the block is irreversibly finalized. |
| Public / Private / Permissioned | Public and permissionless for users and developers. Validator participation is permissioned. |
| Smart contracts | Yes |
| Smart contract language(s) supported | Solidity; EVM-compatible |
| Transaction privacy | Not currently. Arc Testnet uses a public EVM. Arc Privacy Sector, an opt-in confidential execution environment for Solidity contracts, is planned and not yet available. |
| Transaction visibility | Public by default. Transactions, contract state, and event logs are queryable through public RPC endpoints and ArcScan. Arc Privacy Sector is designed to make selected data confidential once launched. |
| Transaction ordering | Transactions enter a mempool, and a rotating validator assembles them into a block. Malachite validators agree on a single order, which becomes irreversible after more than two-thirds pre-commit. Priority tips can improve inclusion during congestion. |
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