The phrase "as attested by the fact that" is correct and usable in written English.
It can be used to introduce evidence or support for a statement or claim being made.
Example: "The project was a success, as attested by the fact that we exceeded our goals and received positive feedback from clients."
Alternatives: "as evidenced by" or "as demonstrated by".
Wool made England's fortune, as attested by the fact that the lord chancellor sits on a scarlet pillow called the Woolsack when presiding in the House of Lords.
The inevitability of elite rule could not be taken for granted, however, as attested by the fact that ancient, medieval, and early modern political writers undertook a constant struggle against rule by ordinary people, or democracy, which was often equated with the absence of order, or anarchy.
The ecological conditions of the Sonoran Desert are extreme (dry, arid, and hot), as attested by the fact that only four Drosophila species are endemic (Heed and Mangan 1986).
The ecological conditions of the Sonoran Desert are extreme (dry, arid and hot according to Köppen classification [ 43]) as attested by the fact that only four Drosophila species are endemic [ 41].
Moreover, the robustness of the proposed method is attested by the fact that we proceed as described in [ 25], by using a shuffling method which generates more than 20 000 data for each of the dependency computation done between each pair of the studied genes.
The significance of this cytokine is attested by the fact that IL-10 has been identified as a correlate of susceptibility for TB in both mice and humans (Bonecini-Almeida et al, 2004; Eum et al, 2008).
A minor miracle of technology, its merits are attested by the fact that it is still on the market and widely available for less than $200.
Her immediate concerns are endangered landscapes, animals and cultures, attested by the fact that she was the photographer for "Imperiled Landscapes, Endangered Legends" (1997).
The strong energy is also attested by the fact that the sea water over passed the first highest dune, and then the second, eroding them to the bedrock.
That many complex emotions are to a certain extent socially constructed, is attested by the fact that what is considered normal emotion varies between epochs and cultures.
This is attested by the fact that landmark localizers trained in one database have usually inferior performance when tested on another database.
