What is polis used for?

Could you elaborate on the intended usage of Polis in the cryptocurrency and finance landscape? I'm curious to understand the specific applications and benefits Polis offers within this domain. As a professional practitioner in the field, I'm always interested in exploring new technologies and how they might revolutionize the industry. Could you provide a concise yet comprehensive description of Polis' capabilities and its potential to impact the finance sector? Your insights would be greatly appreciated.