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.
Nimiq is a browser based blockchain. It was written in Javascript ES6 and because of this, the complete blockchain runs in the browser. The main goal of Nimiq is to solve the payment solution, and to provide a browser based payment solution of sending money. They also have nearly instant transactions as well. Nimiq is a CPU only mineable coin, since it uses the Aragon2D algorithm. Nimiq intends to lower barriers of entry for blockchain technology, and make it accessible for mainstream use. With an operational betanet already live, users can experience how simple it is to mine inside a browser - installation free. Nimiq is making blockchain technology as accessible as the internet, with a vision to truly decentralize the web. Current available cryptocurrencies are complicated and counterintuitive for the average person to use. True internet decentralization is impossible if access to blockchain technology is limited to only the technically oriented people. Until blockchain can be picked up with general recognition and general usage, its true power remains unrealized. Nimiq originally began as an ERC20 (Ethereum) token, known as NET or Nimiq Exchange Token. Nimiq held its ICO throughout June and July of 2017, and raised over 10 million USD. NET trading was enabled shortly after the ICO, and development began on the project’s Github. NET was converted to NIM, the currency that is based on the Nimiq blockchain and network, on March 31st of 2018. Nimiq’s wallet (Nimiq Safe) is built right into the Nimiq website, which means there is no need to download or sync a wallet application. The wallet will lead you through a setup guide, which will help backup and secure your wallet in the case of data loss. As the Nimiq wallet is based in the browser, however, erasing your cache could delete your balance – so keeping a backup is highly recommended.