Arbitrum Nova vs Zcash

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.

The Zcash network is decentralized, self-funded and built with cutting-edge cryptography. Zcash is a cryptocurrency built to empower economic freedom. It is similar to Bitcoin in its design — in fact, Zcash was created from the original Bitcoin code base — but it uses a privacy technology that encrypts transaction information and allows users to shield their assets.