What is Firo & Zcoin?
Could you please elaborate on the cryptocurrencies Firo and Zcoin? Are they forks of other popular cryptocurrencies? What are their unique features and selling points? Are they focused on privacy, scalability, or some other specific aspect? How do their consensus mechanisms work? Have they faced any notable challenges or security breaches in their history? How do they plan to compete with the more established cryptocurrencies in the market? I'm particularly interested in hearing about their use cases and community support.