NEO is a next generation smart economy platform (formerly Antshares) and China's first open source blockchain that was founded in 2014, is often known as the “Ethereum of China”. What is NEO? NEO uses a smart economy approach to implement its distributed network concept. Its main objective is to digitize assets using the decentralized network of blockchain technology and digital identity. Neo’s main aim is to be the distributed network for “smart economy”. As their website states: 'Digital Assets + Digital Identity + Smart Contract = Smart Economy.' Neo was developed by Shanghai-based blockchain R&D company “OnChain” and funded by two crowdsales: first crowdsale on October 2015 sold 17.5 million NEO tokens for $550,000 and the second crowdsale sold the remaining 22.5 million NEO tokens for $4.5 million. So why NEO? Asset digitization and identity on the NEO platform essentially creates a novel way for asset registration, issuance, and circulation. This means that tangible assets like real estate, company shares or even fiat money can be digitized and traded on the NEO network, thus giving rise to a whole new economy. Its digital identity system allows for integration between the platform and the real world economy. It has custom digital identity standards that enable the creation of electronic identity data for individuals, organizations and even entities. These electronic systems use multi-layered authentication models that include facial and voice recognition as well as fingerprints. All digital assets on the platform enjoy legal protection thanks to the use of digital certificates on its public blockchain. This, in turn, guarantees trust as the system offers an indelible and unalterable record of all entities’ holdings.
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.