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.
Contentos is a decentralized global content ecosystem invested by Binance Labs (the blockchain incubator of world’s largest exchange, https://labs.binance.com), DHVC and various class-leading funds. Contentos TestNet was launched and its real-time network status can be viewed on Contentos Block Explorer (https://explorer.contentos.io). It aims to create a decentralized content ecosystem, where assets can be freely produced, authenticated, and distributed. The team consists of experts from the content industry, who have worked on top-tier consumer applications and blockchain projects. Contentos is not only a blueprint for what digital content ecosystem might look like in the future but we have multiple working use cases: Contentos is working with strategic partners, LiveMe and Cheetah Mobile, that have amassed over 60+ million monthly active users. With real-time user feedback, Contentos will become a premier blockchain project as it places the interest of users first.