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.
Litecoin Cash is an open source, peer-to-peer digital currency based on SHA-256 proof-of-work hashes. It’s also the world’s first blockchain to utilize HiveMine, the latest cutting-edge technology that helps to provide the ultimate protection from 51% attacks and double spending, and ensures the sustainable and long-term security of its public distributed ledger. The Litecoin Cash blockchain also has practical uses such as in the medical sector as it stores and manages electronic medical records in a secure way, as well as protecting sensitive data from hackers and giving patients more control over their information that complies with privacy regulations. LCC's target block time of 2.5 minutes gives 4 times the transaction bandwidth of Bitcoin, while transactions are 90% cheaper than Litecoin. HD wallets and native SegWit with bech32 addresses are fully supported Litecoin Cash was forked from Litecoin on 18 Feb 2018 at block 1371111, with a 10:1 Claim Ratio. For every 1 LTC held at the fork block, LTC holders could claim 10 LCC. If you held LTC at block 1371111 but haven't claimed yet, your LCC are still waiting for you! After many months of testing on tetnet The Hive became active on mainnet on Wednesday 6 Feb. 2019 The Hive is our brand new democratised mining concept, which feautures negligible energy cost and will help to. protect the coin against 51% attacks. Users create bees, agent-based mining workers which earn rewards for their owners.