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.
BMX is an ERC20 based token issued by BitMart Exchange with total volume of 1,000,000,000. First issued as BMC in December 2017, BitMart changed the name of the token in January 2018 as BMX. You may find that the symbol name displayed in the smart contract and block explorer as BMC, but the actual symbol name we use is BMX. The reason is: our toke was named BMC, but then we find that 'BMC' has been used by another project, so we have to change the symbol name of our token to 'BMX'.