Unfortunately for you, that's not what you claimed. You wrote, " Yad Vashem has a section devoted to the only photographic evidence of the holohoax at Auschwitz."
What the blurb you are now quoting says is that Lili Jacob album is the only surviving visual evidence of the process leading to extermination - emphasis on the overall process and leading up to the murder itself (but not showing the murder). Put another way, the album contains photographs from the various stages of the processing of a single transport, or as Gideon Greif's essay from the Auschwitz Museum publication of the album puts it, the album "documents in about 200 photos . . . the arrival, selection, confiscation of property, and preparation for the physical liquidation of a Jewish 'transport' to Auschwitz-Birkenau. . . . the album [ ] document the dispatch of a Jewish transport of deportees in the spring of 1944 . . ."
You should know this because the Yad Vashem article says so: "The photos in the album show the entire process except for the killing itself."
You didn't write anything even close to this; simply put, what you wrote is wrong.
Btw it was a photo from this album that was instrumental in convincing Eric Hunt that Jews were gassed at Birkenau.