Patent Document ID: 9773052
Application ID: 14286795

Base Claim:
1. A method comprising: receiving a request for a snapshot of a document at a previous point in time; identifying events associated with the document prior to the previous point in time, wherein the events include every event associated with a change in the document prior to the previous point in time, wherein an event of the events includes a deletion of at least a portion of the document, wherein each event of the events is separately stored in an archive, wherein the archive receives a first set of one or more events from a first communication modality and a second set of one or more events from a second communication modality, and wherein the archive processes each of the first set of one or more events and each of the second set of one or more events to a common format; and generating the snapshot by performing each event of the events, wherein the snapshot represents the document at the previous point in time.

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Claim 2:
2. The method of claim 1 , wherein a change in the document includes an addition, a deletion, or a combination thereof.