Quasar Coin 'Fair travel' is also referred to as 'good travel' as a concept derived from fair trade, in which producers and consumers form a comparable relationship. It has been promoted in European and other English-speaking countries since the 2000s to reflect the environmental pollution, destruction of civilization and waste caused by the trips, and to give a little help to the residents of difficult countries. We want to build a platform in which travelers, hotels, restaurants and stores around the world can mutually satisfy each other through fair trade. Technically, we have built up an advanced reputation system based on a block chain, a simple payment system in the form of a credit card, various APIs, an instant transaction system to minimize the variability of cryptocurrency, In business, it provides discounts through discounted quasar cards and eliminates anxiety factors by using proven companies, and provides companies with promotional effects and sales increase within the Quasar platform. Quasar Coin has adopted the bit coin platform, which has been proven to be safe as the first cryptocurrency, and applied Light Coin to reduce block time for quick settlement in daily transactions. In addition, for smooth block mining, it solves the difficulty-bomb problem which intentionally raises difficulty to make it difficult to mine. Since the development of the quasar coin has already been completed, the project team has focused on the development of the related infrastructure system in order to activate the transaction of the cryptocurrency. Quasar Card Quasar cards are the easiest payment method for users who are familiar with using credit cards when paying by quasar coin, and can be paid by various methods such as QR code, IC chip and NFC according to the status of the receiving terminal of the company. By combining the unique hash codes given by the system when issuing the card based on the public key, illegal settlement is prevented so that it can only be used with the public key Smart Wallet In general, mobile wallet offers three basic functions, sending coins, receiving coins and transaction records. Quasar's Smart Wallet can provide search for businesses, view reputation, write reviews, reserve / pay when needed as an advanced for of smart wallet. Business In general, mobile wallet offers three basic functions, sending coins, receiving coins and transaction records. Quasar's Smart Wallet can provide search for businesses, view reputation, write reviews, reserve / pay when needed as an advanced for of smart wallet.
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.