eCash vs Arbitrum

eCash is a blockchain project led by Bitcoin ABC, aiming to enhance L1 scalability, security, transaction speed, and cost-effectiveness. It integrates the Avalanche consensus protocol with its base PoW consensus, making it effectively a hybrid consensus network that is secured against 51% attacks and extensible via subnets and hard-fork free upgrades. These improvements address scalability concerns, enable rapid transaction finality, interoperability, and guarantee subcent fees. Despite these improvements, eCash remains committed to maintaining the decentralization principles of the original Bitcoin protocol. By prioritizing scalability and extensibility, eCash seeks to realize the vision of Bitcoin as a practical and accessible peer-to-peer electronic cash system.

Arbitrum serves as a Layer 2 scaling solution for Ethereum, leveraging rollups to significantly boost scalability and reduce transaction costs while maintaining robust security. It enables developers to execute EVM-compatible smart contracts with a substantially higher transaction throughput and lower fees compared to Ethereum's main chain, making it a compelling platform for decentralized application development.