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.
As an architecture combining block chain and internet of things (IoT), Ruff Chain includes a public chain for development as well as a distributed operating system. It extends the point-to-point network and consensus mechanism from the virtual to real world, and promotes the motion of atomic flow by information flow. RUFF Tokens, validated by virtual currency contracts, are placed in the Ruff Chain; they are the standards for incentivizing, consuming, and trading in the Ruff Chain community.