What are the 4 blockchains?
Could you please elaborate on the four major blockchains that are currently prominent in the cryptocurrency landscape? Could you explain their unique features, functionalities, and the roles they play in the overall blockchain ecosystem? Additionally, would you mind discussing the advantages and disadvantages of each blockchain, as well as any potential use cases or applications they might have? Lastly, could you provide insights into the current trends and future prospects of these four blockchains?