Blockchain USA Official (Binance) appears to be related to cryptocurrency and potentially Binance Smart Chain. While a direct description isn't available, similar projects like ObamaBnbToken offer daily returns in BNB through mining and a decentralized application. Other related presales include Defince, focused on blockchain decentralization via Web3 technology. The focus seems to be on BNB-based tokens and mining opportunities within the Binance ecosystem.