EtherZero, abbreviated ETZ, is a hard fork on ethereum providing no-fee, high expansibility, real-time transaction or operation feedback services. Aiming to be a general-purpose smart contract platform, ETZ helps developers set up DAPPs that not limited in finance and business scope, but those more frequently used in daily life, to popularize decentralized services to more people and industries. ETZ eliminates the gas fee system from Ethereum network core and adds a Transaction Restriction Policy Protocol layer that associates the threshold, frequency, depth, etc. of initiating transactions with the account balance to combat DDOS like attacks. In particular, ETZ also draws on DASH's two-tier network architecture built with Masternodes transaction verification network and blockchain ledger layer, and its built-in community autonomous system to provide users with real-time operation feedback and high transaction concurrency, no longer need to wait for a long transaction confirmation time. ETZ picks the proven experience of Ethereum on smart contracts, removes its less scalability gas-based fee system and designs a fully accountable trading limit and security strategy against DDOS Class attacks. The final two-tier network composed of the main node and pow consensus layer laid the foundation to achieve free of charge, high concurrency, real-time transactions, independent evolution and several other features. What does no-fee mean to DApp Dev? Taking a simple Todolist DApp as an example, its decentralized implementation can be applied to the team task decomposition process, which requires all participants in the project to know the tasks of other members. Each task is a team consensus result with demand of traceability. The application involves registration of members, additions, deletions and alterations of tasks. According to Ethereum development requirements, all of these operations require gas consumption, which is clearly unreasonable for the users of the application. While in EtherZero, the transaction initiation frequency and the execution depth of smart contracts will be positively related to the balance possessed by the account. This mechanism is similar to POS, it takes into account the fair use of bandwidth and set a relatively high capital threshold required to launch a DDOS attack by malicious attackers while providing free services. This kind of limited and cost-effective free mechanism will spread the decentralized application into the scene of life.
Stratis is a powerful and flexible Blockchain Development Platform designed for the needs of the real world financial services businesses and other organisations that want to develop, test and deploy apps on the blockchain. Stratis significantly simplifies the development process for creating Blockchain applications and accelerates the lifecycle for Blockchain development projects. Stratis private chain allows businesses to deploy their own customise blockchain without the costs of running their own blockchain network infrastructure. The vision of the Stratis platform is to become a one-stop shop for all blockchain things, mostly becoming a blockchain-as-a-service (BAAS) platform. Technology-wise, it is a clone of Bitcoin’s core code, with a few enhanced features and written in C# language instead of C++. The team is based in the United Kingdom but has a decentralized structure with members spreading across the world. Several people on their management team are well-versed in enterprise software development using .NET and C# – a positive sign considering those are the project’s two primary languages. Chris Trew, the founder and CEO, has over 10 years of experience in enterprise IT and was a volunteer developer for the Blitz project. Stratis is competing against other BaaS projects in an increasingly saturated but gigantic space. Lisk may be the largest direct competitor in offering sidechains for businesses. However, Lisk is written in Javascript (not C#) and has sidechains that are more publicly available. The decreased privacy may be a turnoff to corporations looking to keep their code proprietary. The company held an ICO in June 2016 and manage to raised 915 Bitcoin.