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.
The Raiden Network is an off-chain scaling solution, enabling near-instant, low-fee and scalable payments. It’s complementary to the Ethereum blockchain and works with any ERC20 compatible token. The Raiden project is work in progress. Its goal is to research state channel technology, define protocols and develop reference implementations. The introduction of payment channels, specifically the type first described by the Lightning Whitepaper (which introduced the Lightning Network), seeks to fix the scalability and congestion issues that currently plague blockchain technology. While the Lightning Network operates on the Bitcoin blockchain, Raiden introduces a comparable solution for the Ethereum network. There are several key features of the Raiden Network Token. Expedited transfer confirmations (<1 second ). Current transfers on the Ethereum blockchain can take a few seconds to minutes. Private transfers that are not viewable on the global ledger. Solve scalability issues so that Ethereum can create mass adoption, allowing Ethereum to become the peer-to-peer, global payments infrastructure with electronic cash that it was initially designed for. Low fee transactions. Micropayment capability that works in union with any ERC-20 token. The Raiden Network project is being developed by Germany’s Brainbot Technologies AG, a software company devoted to blockchain protocol development. Founded in the year 2000 by Heiko Hees, it currently has between 11 to 50 employees in offices among Berlin, Mainz, and Copenhagen. Also the founder of PediaPress, Hees has been a core developer of Ethereum since March 2014. Being a core developer for Ethereum, it is evident on how the founder sees the flaws in the current its present protocol with ways to improve it. Interestingly enough, the website does not include RDN as one of their main blockchain developments, which could be attributed to the difficulty of highlighting a wide variety of projects they are currently undertaking on one page. However, there are no updates on the status of the Raiden Network Project on either Twitter nor Medium since December 1st, 2017. Raiden can be used for a wide variety of applications and purposes such as Micropayments For Content Distribution, Decentralized M2M Markets, API Access and Fast Decentralized Exchanges.'