How to buy and stake TIA?

Could you please elaborate on the process of purchasing and staking TIA? I'm interested in understanding the steps involved, including the platforms or exchanges I should use, the necessary verification processes, and any potential fees associated with the transactions. Additionally, could you provide insights on the staking mechanism, such as the requirements, rewards, and risks involved? It would be helpful to know how staking affects my holdings and whether there are any long-term benefits associated with it. Thank you for your assistance.