Distributed digital-ticket management for rights trading system . In Proceedings of the 1st ACM Conference on Electronic Commerce. The goals of DRTS are to provide an infrastructure that prevents duplicate redemption and enables the trading of various rights via the Internet. In other words, it is to provide a new digital medium that basically duplicates paper ticket. A digital right can, however, be transferred or redeemed, at which time H is changed, i.e. the signature is broken.
Digital rights are also different from digital cash, which only represents a specific currency.
Digital rights must represent various types of rights and be created by various issuers.