{
  "draft": "draft-vandesompel-memento-11",
  "doc_id": "RFC7089",
  "title": "HTTP Framework for Time-Based Access to Resource States -- Memento",
  "authors": [
    "H. Van de Sompel",
    "M. Nelson",
    "R. Sanderson"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "50",
  "pub_status": "INFORMATIONAL",
  "status": "INFORMATIONAL",
  "source": "INDEPENDENT",
  "abstract": "The HTTP-based Memento framework bridges the present and past Web.  It facilitates obtaining representations of prior states of a given resource by introducing datetime negotiation and TimeMaps.  Datetime negotiation is a variation on content negotiation that leverages the given resource's URI and a user agent's preferred datetime.  TimeMaps are lists that enumerate URIs of resources that encapsulate prior states of the given resource.  The framework also facilitates recognizing a resource that encapsulates a frozen prior state of another resource.",
  "pub_date": "December 2013",
  "keywords": [
    "HTTP",
    "content negotiation",
    "datetime negotiation",
    "resource versions",
    "archival resources",
    "Memento"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC7089",
  "errata_url": null
}