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.
Syscoin is “a global network, a distributed ledger, a decentralized database and a blockchain. It is also a cryptocurrency, an altcoin, a digital currency and a tradable token.” Originally launched in late 2014 and created through a Bitcoin fork, the current version brings us to Syscoin 2.1 and has an algorithm that allows it to be merge-mined with Bitcoin. Merge mining is simply the ability for miners to simultaneously mine two different cryptocurrencies based on the same algorithm. The project attempts to remove the middleman and put money directly back into merchants/consumers hands, eliminating hefty fees currently charged by big corporations like Amazon and eBay. To facilitate near-zero fee transactions, you can use its native cryptocurrency, Syscoin (SYS), to pay for goods on the marketplace. However, you can also pay using alternate cryptocurrencies such as Bitcoin or Zcash. Syscoin is led by a team of developers and was created by its current core developer, Sebastian Schepis. According to Proof of Developer, a website that verifies, evaluates, and ranks developer teams, Syscoin received 5 stars in 2014. Blockchain Foundry maintains Syscoin as its flagship product, with a mission to “disrupt markets by leveraging the potential of blockchain technology”. In March of 2017, Blockchain Foundry partnered with the Microsoft Azure ecosystem and is one of the founding members of the Digital Identity Foundation (DIF). Other founding members of the DIF include the likes of corporate giants such as Microsoft, Accenture, ConsenSys, and more. Syscoin’s blockchain delivers faster speeds along with lower transaction fees than its predecessor, Bitcoin. It can support 750 tps, and with the upcoming masternode release, it will support more than 300,000 tps. For now, it’s one of the cheapest cryptocurrencies regarding transaction fees (behind zero-fee transaction cryptocurrencies such as NEO and NANO), even cheaper than XRP.' Some of the features highlighted on the SysCoin website includes :- 1. Buy/Selling goods on the blockchain 2. Brokerage on the blockchain 3. Issue and trade certificates on the blockchain 4. Merged Mining