Arbitrum vs Manta

Arbitrum One and Nova are optimistic rollups using Nitro fraud proofs that compress transactions into calldata submitted to Ethereum. The Orbit toolkit lets projects deploy their own Arbitrum Orbit chains with configurable permissions. ARB token governance manages the 3 000‑plus validator whitelist and a 1 billion‑dollar ecosystem grant fund.

Manta Pacific is a modular zk‑EVM Layer‑2 that stores rollup data on Celestia DA and uses universal circuits to keep prover costs low. Users can deploy privacy‑preserving smart contracts with built‑in zero‑knowledge widgets for shielding balances. The 2025 ‘Marlin’ release adds Account Abstraction and native bridges to Polkadot’s parachain ecosystem.