Threshold pledge system
The Street Performer Protocol (SPP, English for " street performer protocol " ) is a method to promote the creation of original works, which are made publicly available in the public domain.
It was developed by the cryptographer John Kelsey and Bruce Schneier of Counterpane Systems (based on older ideas). The insight underlying is that traditional forms of copyright will be difficult to enforce in the future, since copying and sharing information is getting easier through new media such as the Internet. Approaches to maintaining copyright, such as DRM must fail ( the variants are discussed in detail ) without curtailing democratic principles ( " And finally, the necessary actions are ongoing to eliminate widespread copyright infringement addition on the legal and technical infrastructure for widespread censorship make it. " ).
Alternatively, the SPP is presented: When SPP the author announces ( a book, piece of music, software, etc.) that he will publish his work without further restrictions, as soon as he receives a certain amount of money in advance. Interested users to donate to the publisher ( comparable to a publisher ), which manages the payments received. If the trade concluded, publishers and authors are paid. Otherwise, the publisher pays the money to the dispensers back, possibly with interest.
The SPP is based on the reputation of the author. The donor must be able to assume that he will fulfill the expectations and produce of them estimated works. It is thus assumed that the author has such a good reputation already established, such as he has already published such public domain works - that can be for example the previous chapter in a continuing story.
The publisher can occur as a traditional publisher by sifts filed Example work, or he acts as trustee.
History of Street Performer Protocol
The SPP is a natural extension of the much older idea of supporting the production of books written agreements between the two groups of potential readers, about in Subskriptionsmodellen.
With the release of the source code and the brand name of the 3D modeling program Blender the SPP was successfully implemented. After the bankruptcy of NaN Technologies in 2002, the copyright of Blender went to the newly founded NaN Holding BV. The newly founded Blender Foundation launched a campaign and succeeded, requested by the NaN Holding BV € 100,000 deposit to make Blender as Open Source Software under the GNU GPL. More than 1,300 users have been a member and each donated more than 50 €, were added anonymous donors, individual donations and donations from companies. On October 13, 2002 Blender was provided as open - source software into the Internet.
Variants
Variants of SPP, for example, the Rational Street Performer Protocol and the Wall Street Performer Protocol.