Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A digital ticket is a virtual instance of a ticket which represents the digitization of rights to claim goods or services.In an account-based system for tickets the rights of the tickets are managed in accounts. Ticket changes in accounts can be made by communicating with a so-called account manager through a network. The trust in these systems can be seen from the service provider's and user's perspective, in which the former generally manages the whole system. This leads to an imbalanced trust relationship. Two other disadvantages of these systems are the need for protection of accounts against malicious users and the relatively large efforts that need to be done to store all the accounts for both the users and the service provider.

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