Proving authenicity of Zcash ceremony video

Zcash has to prove that the Video of the ceremony has not been edited. So have they used “strict image authentication” techniques as described in the research paper at https://www.etsmtl.ca/ETS/media/ImagesETS/Labo/LIVIA/Publications/2008/Haouzia_MTA_2008.pdf ?

Actually the authenticity of the original ceremony video is no longer relevant. There is a new parameter generation ceremony that will replace the first one with the Sapling network upgrade:

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