Site:
xdaichain.com
SpankChain (SPANK) is an ERC-20 token offerd by the SpankChain network. The cryptocurrency pairs including SPANK are available on the number of exchanges. One can also buy the coin in exchange for USD currency, using one of the exchange platforms.
Bitcoin Gold (BTG) is a Bitcoin hard fork that took place in 2017. The initial goal behind creation of Bitcoin Gold was to increase level of decentralization of Bitcoin network as it became obvious that most of the network is controlled by few mining pools.
Polkadot development is on track to deliver a robust platform for security, scalability, and innovation.