Xaurum is the unit of value on the golden blockchain. Xaurum Golden Blackchain represents the increasing amount of gold and can be exchanged for through melting. Xaurum is a transparent ledger of account for the distribution of gold owned by the Xaurum Commonwealth, which is maintained by Auresco Institute physically and Guardian nodes digitally. Auresco institute and Guardian nodes are both designed to distribute and increase Xaurum's value. The Xaurum can be mined cooperatively by miners on the Goldmine. Xaurum exercises cooperative control over the money supply through cooperative mining and minting that have been decentralized. This mined bvalue can be exchanged for physical gold, storesd as the CommonWealth gold reserves.
Viacoin is a Script-based cryptocurrency derived from Bitcoin. Similar to Bitcoin and other cryptocurrencies, Viacoin is also an open-source project. Viacoin aims to be the cryptocurrency of future, by integrating many innovative key technologies such as SegWit, APoW, Lightning Network, Dark Gravity Wave, and more. Viacoin claims to allow 25 times faster transactions than Bitcoin. It can be merged mined with the other Script cryptocurrencies like Litecoin, This is done by using an Auxiliary Proof-of-Work (AuxPoW) algorithm. Every six months, Viacoin halves the block reward that is given to users for Viacoin mining, resulting in a low inflation rate of Viacoin. Check out CoinBureau for the complete review of Viacoin.