Auroracoin is a decentralised, peer-to-peer, and secure cryptocurrency released as an alternative to the Icelandic Króna to bypass governmental restrictions associated with the national fiat currency. It was launched with the aim of becoming the ‘official’ cryptocurrency of Iceland. AUR was a pioneer in the area of country-specific cryptocurrencies. AUR was launched on the 25th of January, 2014, by an anonymous developer who went by the pseudonym of Baldur Friggjar Óðinsson. It was originally based on Litecoin, using the Scrypt algorithm with a Proof of Work mechanism, but was later updated to use a multi-algorithm architecture in 2016, forked from DigiByte. Auroracoin uses the PoW consensus mechanism, which utilises device hashing power to solve a complex mathematical problem in order to authenticate a transaction proposed to be stored in the blockchain. The difficulty of solving the problem ensures that authenticating forged transactions is very difficult unless the attacker owns an impractically large chunk of the network’s total hashing power. AUR is one of the only cryptocurrencies to use a combination of five different hashing algorithms, namely Grøstl, Qubit, scrypt, SHA-256, and Skein. While initially very popular, Auroracoin has seen little to no activity for a while, with poor marketing, and frequent dev team changes. Reasons for little growth have been various, from slow adoption in Iceland, to developers leaving and joining the project midway. However, it is expected to not go lower than the recent low, and might see a rise as AUR plans to launch a more aggressive marketing campaign in Iceland to promote the coin among the masses. Unlike most other altcoins, Auroracoin has made extensive changes to the original codebase. It has introduced security measures such as Automatic checkpointing, and protecting against known flaws present in the BTC blockchain, such as 51% block replacement attacks.
VITE - A Next Generation High-performance Decentralized Application Platform DAG Ledger Transactions in Vite are grouped by accounts. That is, each transaction only changes the state of one single account. Send transactions are separated from receive transactions, thereby obviating the need to wait for a transfer to be complete before the initiation of another transaction. The hierarchical design of the consensus algorithm allows horizontal scalability in consensus groups. Asynchronous Architecture Vite splits transactions into transaction pairs according to a 'request-response' pattern. The writing and verification of transactions are asynchronously decoupled, thereby supporting ultra-high throughput. Inter-contract communications are based on an asynchronous messaging model. Reactive Contract Message-Driven With an event-driven architecture, every smart contract is viewed as an independent service. Contracts communicate via messages without sharing state. Solidity++ Solidity++’s syntax is compatible with most of that of Solidity. The new syntax supports asynchronous semantics, contract scheduling, and provides a series of standard libraries, such as string manipulation, floating-point operations, basic mathematical operations, containers, sorting, and so on. Integrated Decentralized Ecosystem End-to-end system for value transfer Vite itself is a decentralized exchange that supports digital asset issuance, cross-chain value transmission, and inter-token transactions based on the Loopring protocol. A quota-based resource allocation mechanism allows light users to pay zero fees and gas. Users can obtain computing resources in multiple ways. Vite also supports quota leasing. dApp Mini Programs The Vite client features an engine for creating HTML5-based decentralized mini programs. This engine simplifies the process of dApp development and deployment.