Idstamps
Idstamps (permanent ids) are associated with each cell. They maintain hyperlinks as cells are reordered within a koutline. See Klinks. Idstamps may be displayed in place of the outline level relative ids. Use {C-c C-l id RET}.
An idstamp counter for each outline starts at 0 and is incremented by one each time a cell is added to the outline. This idstamp stays with the cell no matter where it is moved within the outline. If the cell is deleted, its idstamp is not reused.
The 0 idstamp is always assigned to the root node of the entire outline. This node is never visible within the outline, but is used so that the outline may be treated as a single tree when needed. Idstamps always begin with a 0, as in 012, to distinguish them from relative ids.