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Uniform Access to Raw Mementos

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Uniform Access to Raw Mementos

  1. 1. Uniform Access to Raw Mementos @mart1nkle1n IIPC WAC, 06/16/2017, London, UK Uniform Access to Raw Mementos Herbert Van de Sompel1, Michael L. Nelson2, Lyudmila Balakireva1, Martin Klein1, Shawn M. Jones1, Harihar Shankar1 {@hvdsomp, @phonedude_mln, N/A, @mart1nkle1n, @shawnmjones, @hariharshankar} 1Research Library Los Alamos National Laboratory 2Computer Science Department Old Dominion University
  2. 2. Uniform Access to Raw Mementos @mart1nkle1n IIPC WAC, 06/16/2017, London, UK 2 • Most web archives augment their Mementos with • Custom banners • Rewritten links Status Quo
  3. 3. Uniform Access to Raw Mementos @mart1nkle1n IIPC WAC, 06/16/2017, London, UK 3
  4. 4. Uniform Access to Raw Mementos @mart1nkle1n IIPC WAC, 06/16/2017, London, UK 4  Such Mementos do not represent the resource’s state at the time of capture.  “Rawness” is needed for  Research evaluating original content  Replay systems e.g., Memento Reconstruct  Approaches to guarantee veracity of archived content Problem
  5. 5. Uniform Access to Raw Mementos @mart1nkle1n IIPC WAC, 06/16/2017, London, UK 5 • Clients have to be aware of archive-specific implementation • URI patterns used to convey levels of rawness: • http://somearchive.org/{datetime}im_/URI-R • http://somearchive.org/{datetime}id_/URI-R • Supported by OpenWayback and pywb instances Current Workaround
  6. 6. Uniform Access to Raw Mementos @mart1nkle1n IIPC WAC, 06/16/2017, London, UK 6
  7. 7. Uniform Access to Raw Mementos @mart1nkle1n IIPC WAC, 06/16/2017, London, UK 7 Option #1 Request header sent against TimeGate Proposal: Use of Prefer Header in HTTP Request
  8. 8. Uniform Access to Raw Mementos @mart1nkle1n IIPC WAC, 06/16/2017, London, UK 8 Option #2 Request header sent against Memento Proposal: Use of Prefer Header in HTTP Request

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