Blackcoin was the first cryptocurrency that was fully proof of stake, which means the network is supported by nodes that stake coins in order to verify transactions instead of miners. It is also the first cryptocurrency that had working smart contracts. Blackcoin is an old stable coin with a large community.
Click on the button below, to visit the official Blackcoin website:
Click on the button below, to buy Blackcoin:
Click on the button below, to sell Blackcoin: