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.
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.