To work with CENTUS, you need to register an account with Centus.one and specify your activated Stellar address in your profile. If you buy CENTUS on a Stellar DEX, then you don't need to confirm your identity. However, to purchase CENTUS through a Centus exchanger using a credit card, you must complete the Identity Verification Process (KYC). The Identity verification is important to comply with laws and prevent fraud, so that you know that people are who they call themselves. Read here how to get started ...