HTTP Framework for Time-Based Access to Resource States -- Memento
RFC 7089, “HTTP Framework for Time-Based Access to Resource States -- Memento”, is an Informational document published in December 2013 by H. Van de Sompel, M. Nelson, R. Sanderson. The canonical text is published by the RFC Editor.
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.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
The canonical text of RFC 7089 is hosted at rfc-editor.org. Available in TXT,HTML.
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