/[gzz]/manuscripts/pointers/article.rst
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revision 1.226 by benja, Mon Nov 10 15:50:35 2003 UTC revision 1.227 by tjl, Mon Nov 10 18:57:54 2003 UTC
# Line 42  The Web could benefit greatly from the b Line 42  The Web could benefit greatly from the b
42  increased availability, and reduced server costs offered  increased availability, and reduced server costs offered
43  by filesharing systems.  by filesharing systems.
44  However, current update mechanisms for P2P networks do not have  However, current update mechanisms for P2P networks do not have
45  the simplicity of filesharing, as versioning  the simplicity and other advantages of filesharing, as versioning
46  information has to be kept as special state in the network.  information has to be kept as special state in the network.
47    
48    
# Line 62  information has to be kept as special st Line 62  information has to be kept as special st
62      because      because
63    
64  To allow versioning information to be stored like other data,  To allow versioning information to be stored like other data,
65  we propose to use *pointer records*,  we propose *pointer records*,
66  which can be shared and sought for  which can be shared and sought for
67  through the network as ordinary files.  through the network as ordinary files.
68  Similar to  Similar to
# Line 72  We also present the Storm data model, Line 72  We also present the Storm data model,
72  a simple API for hash-based storage systems, such as P2P networks.  a simple API for hash-based storage systems, such as P2P networks.
73  Using pointer records layered on top of the Storm data model,  Using pointer records layered on top of the Storm data model,
74  all versions of a document, stored on any host  all versions of a document, stored on any host
75  in any participating P2P network,  on any participating P2P network,
76  can be found using the same URI.  can be found using the same URI.
77    
78  .. Past versions of a web page  .. Past versions of a web page
# Line 137  to generate electricity. Line 137  to generate electricity.
137  To facilitate the debate,  To facilitate the debate,
138  SpaceViews, a publication of the National Space Society,  SpaceViews, a publication of the National Space Society,
139  published a list of links to web pages of both  published a list of links to web pages of both
140  Cassini opponents and supporters [#rtg-links]_.  Cassini opponents and supporters.
141  In 2003,  In 2003,
142  only six years after the launch,  only six years after the launch,
143  only 29  only 29
144  of the 83 links provided by SpaceViews continue to work.  of the 83 links provided by SpaceViews continue to work [#rtg-links]_.
145  Almost two thirds of the debate  Almost two thirds of the debate
146  has fallen off the Web. "If I have seen further it is by standing  have fallen off the Web. "If I have seen further it is by standing
147  on the shoulders of giants;" but how can we do that today,  on the shoulders of giants;" but how can we do that today,
148  if the shoulders keep rotting away?  if the shoulders keep rotting away?
149  The Internet Archive's Wayback Machine [waybackmachine]_  The Internet Archive's Wayback Machine [waybackmachine]_
# Line 166  a single point of failure-- and censorsh Line 166  a single point of failure-- and censorsh
166  We hold that a P2P Web should provide  We hold that a P2P Web should provide
167  the following features of filesharing systems to its users:  the following features of filesharing systems to its users:
168    
169    Distributed archivability
170           The ability to
171           keep a version originally published by
172           someone else online, *accessible to others*,
173           under its original URI, for any period of time
174           (so that when the original publisher loses interest,
175           a page does not have to fall off the Web).
176    
177  Off-line capability  Off-line capability
178         The ability to         The ability to
179         download versions and use them off-line without         download versions and use them off-line without
# Line 185  Heterogeneity Line 193  Heterogeneity
193         c) because people can use their favorite network         c) because people can use their favorite network
194         while agreeing on a common data model (network effect).         while agreeing on a common data model (network effect).
195    
 Distributed archivability  
        The ability to  
        keep a version originally published by  
        someone else online, *accessible to others*,  
        under its original URI, for any period of time  
        (so that when the original publisher loses interest,  
        a page does not have to fall off the Web).  
   
196  In a P2P Web, pages could be  In a P2P Web, pages could be
197  linked using  permanent URIs  linked using  permanent URIs
198  based on the files' cryptographic  based on the files' cryptographic

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