Old Sansha outposts

The Sansha logs retrieved by mr. Varkonis contain snippets of text by the minions of Sansha Kuvakei, mostly lauding and praising him and his efforts. But one thing they all have in common - they mention outposts where the pilots come from or have to head back to. 

And those are by no means confined to the Stain region, which according to the MIO Universe Factbook is the region of our cluster where the Sansha took refuge!

The logs have a identifier - a number. It is not clear what the number refers to, but it would stand to reason that it should somehow not only indicate which ship it belongs to but also be a datestamp. Indeed, the numbers seem to rise slowly, within a limited range. They paint a picture of outposts retreating back from our space down to Stain:

It is deeply troubling to see Boranai, Nidebora, Dabrid and Hadonoo in Imperial space on that list of Sansha outposts. Mr. Firth tells me not to worry, these are old logs and the outposts would have been cleared long ago. Nevertheless I plan to go and check out these systems. The rest of the systems trace a retreat to Providence, Catch and Stain.

But it doesn't stop there - systems in Esoteria and finally Paragon Soul outposts are mentioned in the logs with the latest identifiers...

PS. The yellow route on the map is simply an automatically generated route to go check all the systems,  in the map one should focus on the systems indicated.

((ooc credit: map made with https://evemaps.dotlan.net/ 's route planner))