At its simplest level, the index of a memento can be the . For a single web page, this is its personal index, listing all of its past states. A TimeMap is the machine-readable list of all archived versions (mementos) of a particular web resource, each with its own URI and archival datetime. It provides a complete historical timeline for that specific page.
These two sequences intercut throughout the film, only converging at the end to form one complete and cohesive narrative. This disorienting structure forces the audience to experience the world as Leonard does, piecing together clues without the benefit of a linear timeline. For those seeking a "scene index" or a complete breakdown of the Memento timeline, the film is often deconstructed into three acts and eight segments, forming a interlocking chain of events that leads to a shocking and ambiguous conclusion. index of memento