What is blue cryptocurrency?
Could you please elaborate on what you mean by "blue cryptocurrency"? Is it a specific type of digital asset, or a term that refers to a particular characteristic or feature of cryptocurrencies in general? I'm not familiar with the term "blue cryptocurrency" as a widely recognized or standardized designation within the cryptocurrency community. Could you provide more context or clarify what you're referring to? It would be helpful to understand the basis for this question so that I can provide a more accurate and relevant answer.