Could you elaborate on the process of purchasing Ordi, a cryptocurrency? I'm particularly interested in the steps involved and any key considerations I should be aware of. Do I need to set up a specific wallet? What platforms or exchanges support Ordi trading? Is there a minimum investment requirement? Additionally, what are the risks associated with investing in Ordi, and how can I mitigate those risks? I'm looking for a comprehensive guide that outlines the entire process from start to finish.