Resource Versioning and Memento,
describes how wikis, content management systems, and software versioning systems that use a common versioning pattern can support the Memento protocol.
Determining Resource Type details how
clients can recognize a Memento (a historic version of a web resource), a TimeGate, and an Original Resource.
JSON TimeMaps specifies an application/json serialization for TimeMaps that may be
supported in addition to the application/link-format serialization specified by the Memento protocol.