Career
According to the latest reading of the Turin canon by Ryholt, Sihathor is recorded there on column 7, line 26 (Gardiner colonel 6, line 26). Two rock inscriptions from Philae and Sehel Island further mention Sihathor as a brother to Neferhotep I. According to Ryholt and Stephen Quirke, Sihathor is also attested as a king on a steatite cylinder seal, now in the Petrie museum UC11571, and a bead of unknown provenance, now in the Brooklyn Museum. A few further seals mentioning a king"s son Sihathor are known, but Ryholt concludes that they may correspond to another Sihathor.
Finally, Vivian Davies points to the existence of a statue of Sihathor made after his death and where he is only given the title of "king"s son".