eCash vs Polygon

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.

Polygon, formerly Matic Network, is a blockchain platform designed to establish a multi-chain system compatible with Ethereum. It employs a proof-of-stake consensus mechanism similar to Ethereum for on-chain transactions, with its native token being MATIC. Functioning as a "layer two" or "sidechain" scaling solution alongside Ethereum, Polygon facilitates quicker transactions and lower fees. Its inception aimed to tackle Ethereum's major challenges, including high fees, subpar user experience, and limited transaction throughput, aspiring to create an "Ethereum's internet of blockchains" or a multi-chain ecosystem of Ethereum-compatible blockchains.