If we say page context then we are referring to the sites that travel with a wiki page as it is copied through the federation.
There is probably a need to add a pages context to the sitemap, much like the links, so there is no need to fetch the page to determine the context. matrix 
In my fedwiki-smalltalk implementation, I have now reached the topic of Walk the Journal Backwards. The following video shows how the context method can be used on a page or its journal. This is achieved through targeted searches (Spotter), which allow me to view site-related journal entries and navigate through the history step by step. The example also shows that there are more journal entries than are relevant to the page's context.
HTML5 mp4 https://wiki.ralfbarkow.ch/assets/pages/pages/page-context/page-context.mov page context
Context: fedwiki-java and fedwiki-smalltalk
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An internal link's Context provides a Path to be searched when the link is clicked. The origin, the remote site, the reference cite and forks in the journal all contribute to the context.
want: a class for such paths
[…], they become meaningful because of their Location in the Network of Message Paths. If we replace `true` and `false` by `0` and `1`, the image would still work if what is expected from booleans is satisfied by their replacements.
navigation
DOT FROM preview-next-two-level-diagram
assets
pages/pages/page-context