There are no special rates for daily attendance, exhibit hall only etc. If you register using a special rate that is not applicable to you, CoinDesk has the right to charge you for the difference upon notice that CoinDesk does not agree with your selection of the special or discounted rate. All determinations of the discounted/special rates are in the sole discretion of CoinDesk. CoinDesk reserves the right to not provide you with any special rate.