Arbitrum Nova vs opBNB

Arbitrum Nova is a high-performance alternative to Arbitrum One's chain. While Arbitrum One implements the purely trustless Rollup protocol, Arbitrum Nova implements the mostly trustless AnyTrust protocol. The key difference between Rollup and AnyTrust is that the AnyTrust protocol introduces an additional trust assumption in the form of a Data Availability Committee (DAC). This committee (detailed below) is responsible for expediting the process of storing, batching, and posting child chain transaction data to Ethereum's parent chain. This lets you use Arbitrum in scenarios that demand performance and affordability, while Arbitrum One is optimal for scenarios that demand Ethereum's pure trustlessness.

opBNB is an optimistic rollup network designed to enhance the scalability of the Binance Smart Chain (BSC). It aims to take the workload away from the mainnet and improve network performance. The opBNB network employs a unique approach to ensure transaction integrity and security. It leverages the main network (BSC) for final transaction validation on its execution layer, facilitated by a verifier mechanism, striving to achieve high throughput while maintaining security.