A distribution model of digital contents to permit free exchange
Original Publication Date: 2000-Dec-01
Included in the Prior Art Database: 2003-Jun-18
1 Introduction Disclosed is a system for realizing free-exchange of digital contents by users. Recently, there is a serious problem that users violate copyrights by exchanging digital contents between anonymous third person using file-sharing system, such as Napster and Gnutella. Disclosed system provides a kind of solutions for preventing such copyright violation, even though users can exchange files freely. This system consists of following four basic ideas.