We know a great deal of the bureaucracy was occupied in overseeing tribute labor for the state, so I suspect a large percentage of the quipu had to do with labor.

290

We hypothesize that the arrangement of three figure-eight knots at the start of these khipu represented the place identifier, or toponym, Puruchuco.

256

We suggest that any khipu moving within the state administrative system bearing an initial arrangement of three figure-eight knots would have been immediately recognizable to Inca administrators as an account pertaining to the palace of Puruchuco.

194

We think those may be the narrative ones.

179

The use of conventional signs is my definition of writing, ... information is being passed through three different levels in ways suggestive of a conventional system.

177