Quarkcoin is a coin which increases security by using 9 rounds of hashing from 6 different hashing algorithms - blake, bmw, grøstl, JH, keccak, skein. 3 of the hashing rounds apply a random hashing function. This compares with Bitcoin's solitary use of SHA-256 algorithm. There is no pre-mine for this coin. A new block is generated every 30 seconds and 2048 Quark is given out as reward per block at the beginning. This reward halves every 60480 blocks or roughly every 3 weeks. The initial supply of Quark is 247 million and this is expected to be mined in roughly 6 months since launch date. The supply will then continue to increase at an inflationary rate of 0.5% per year. Quarkcoin was launched on 21 July 2013.
Reserve aims to build a stable, decentralized, asset-backed cryptocurrency and a digital payment system that scales supply with demand and maintains 100% or more collateral backing. Ultimately, Reserve’s goal is to create a universal store of value – particularly in regions with unreliable banking infrastructure and regions where hyperinflation is an issue. The Reserve system will interact with three kinds of tokens: (1) The Reserve token (RSV), which is a stable cryptocurrency that can be held and spent the way we use normal fiat money; (2) The Reserve Rights token (RSR), a protocol token used to facilitate the stability of RSV. (3) A growing variety of tokenized real-world assets (such as other stablecoins) that are held by the Reserve smart contract to back RSV.