The anonymous year of the 11th count date presumably of Djedefre was found written on the underside of one of the massive roofing-block beams which covered Khufu's southern boat-pits by Egyptian work crews.

"[10] The German scholar Dieter Arnold, in a 1981 MDAIK paper noted that the marks and inscriptions of the blocks from Khufu's boat pit seem to form a coherent collection relating to the different stages of the same building project realised by Djedefre's crews.

While Egyptologists previously assumed that his pyramid at this heavily denuded site was unfinished upon his death, more recent excavations from 1995 to 2005 have established that it was indeed completed.

[17] The most recent evidence indicates that its current state is the result of extensive plundering in later periods while "the king's statues [were] smashed as late as the 2nd century AD.

In 2004, evidence that Djedefre was responsible for the building of the Sphinx at Giza in the image of his father was reported by the French Egyptologist Vassil Dobrev.

"[19] His pyramid causeway proved to run from north to south rather than the more conventional east to west, while no valley temple has been found.