Bitcoin is both. It performs like an asset and functions like a currency. It is also the best universal ledger for keeping track of debt, so it is also the best form of money in terms of sound money as well.
Bitcoin is the digital currency.it not asset. Bitcoin use to any where and you purchase anything. Bitcoin is use to any country it will give more information for the future growth. But asset is not is use to any where it not moving. Bitcoin is give the more information for the business, finance and trading. Asset is the movie not. but bitcoin is the currency it will change any time.